Jack Up Barge Specs1

8/16/2019 Jack Up Barge Specs1

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Technical Specif ications

of

Jackup Barge

Rev. Description Date Prepared by ReviewIssued for:

Client:M/s. MUNDRA SPECIAL ECONOMIC ZONE LTD.AHMEDABAD.

Project:

JACK UP BARGE

Doc # Rev Document Title Prepared by JK

A B - 0 5 - 1 0 1 4 / 0 4 0 0 Checked Bhasker Rao

Scale SheetSize

Date Sheet Reviewed

0 1 0 7 2 0 0 5 1 OF 36Technical Specifications

AB Marine Consultants(Division of Cyber Marine Knowledge Systems Pvt. Ltd.)

511, Hermes Atrium, Sector – 11, CBD Belapur.Navi Mumbai- 400 614., Mumbai.E-mail: [email protected] Website: www.cybermarine.net


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INDEX

SECTION 1: GENERAL

1.0 GENERAL DESCRIPTION 041.01 PRINCIPAL PARTICULARS 041.02 CLASSIFICATION 041.03 CAPACITIES 051.04 CERTIFICATES 051.05 DRAWINGS / MANUALS / DOCUMENTS ON DELIVERY 051.06 REGISTRATION 061.07 DEADWEIGHT CAPACITY 061.08 TEST & TRIALS 061.09 STABILITY AND TRIM 061.10 MATERIAL AND WORKMANSHIP 06

1.11 GENERAL 071.12 AME, EMBLEM & OTHER MARKS 07

SECTION 2: DESIGN CRITERIA

2.01 DESCRIPTION OF THE UNIT 092.02 SERVICE ENVIRONMENTAL CONDITIONS (Elev Condition)- I 102.03 SERVICE ENVIRONMENTAL CONDITIONS (Elev Condition)- II 142.04 DESIGN LOADINGS AND JACKING SYSTEM 18

SECTION 3: STRUCTURE

3.01 GENERAL 223.02 BOTTOM CONSTRUCTION 223.03 SHELL PLATING WITH FRAMING 223.04 LEGS 223.05 BULKHEADS 233.06 JACK HOUSE 233.07 DECKS 233.08 TANKS 233.09 FOUNDATIONS 233.10 DECK HOUSE 243.11 RAILING 243.12 FUNNEL 243.13 ENGINE CASING & SKYLIGHTS 253.14 MASTS 253.15 LADDERS AND STAIRWAYS 253.16 SKEG 253.17 FENDER 253.18 PAINTING 263.19 CATHODIC PROTECTION 27


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SECTION 4: MACHINERY, EQUIPMENTS AND MISCELLANEOUS ITEMS

4.01 ANCHORS & ROPES 274.02 ANCHORING/MOORING WINCHES 274.03 MOORING FITTINGS 274.04 ACCESS HATCHES AND MANHOLES 274.05 PORT HOLES & WINDOWS 284.06 DOORS 284.07 DECK COVERING 28

SECTION 5: SAFETY & NAVIGATIONAL EQUIPMENT

5.01 LIFE SAVING APPLIANCES 29

5.02 FIRE FIGHTING APPLIANCES 295.03 LIGHT & SOUND SIGNALS AND SHAPES 295.04 NAVIGATIONAL & COMMUNICATION AIDS 30

SECTION 6 : MACHINERY SPECIFICATIONS

6.01 GENERAL 316.02 HYDRAULIC JACKING SYSTEM 316.03 GENERATORS 32

SECTION 7 : PIPING, VALVES AND PUMP SYSTEM

7.01 GENERAL 337.02 PUMPS 337.03 PIPING MATERIAL 34

SECTION 8 : VENTILATION 35

SECTION 9 : ELECTRICAL SYSTEM 36


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Jack Up Barge Technical Specifications

A B Marine Consultants 4

SECTION 1: GENERAL

1.0 GENERAL DESCRIPTION

The Unit shall be a Self-Elevating Jack-up Platform intended for‘Restricted Service’ in Coastal waters. The Unit shall be used forPiling operations and Soil Investigation. The vessel shall be designedas an unmanned barge in which personnel will be present only duringconstruction activity.

The Unit shall be designed as a pontoon with 4 legs and shall beprovided with Hydraulic Jacking System. The equipment shall bemounted on the Main Deck and Piling and drilling operations shall becarried out from the deck. All generators and hydraulic power packs

shall be mounted below the Main deck. Rest rooms and office spacesshall be provided above Main deck.

1.01 PRINCIPAL PARTICULARS

VESSEL PARTICULARS

Length Overall 35.00 MBreadth 30.00 M

Depth 2.75 MDraft (Pontoon) 2.00 MDisplacement (Maximum) 1720 TLightship Weight 1050 T

DESIGN CODES

The vessel shall be designed in accordance with the followings codes:

• ABS Rules for Building and Classing Mobile Offshore Drilling Units

• AISC – Manual of steel construction

• IMO code on Intact stability

1.02 CLASSIFICATION

The jack up barge to be designed and built under supervision andsurvey by ABS/IRS, with their relevant rules suitable for operationsalong the Indian Coast for the given operating conditions andmachinery shall be as required for the operations required to becarried out as specified in this document. The vessel shall be classifiedand designed as an unmanned barge, which will be occupied bypersonnel only during operations.


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CLASS NOTATION

‘A1 Self Elevating Unit, Restricted Service” as an unmanned barge asper ABS or“SUL Self Elevating Platform for Indian Coastal Service,IY”: as an

unmanned barge as per IRS

1.03 CAPACITIES

Fuel Oil …. 10 KLFresh Water …. 100 KL

1.04 CERTIFICATES

The vessel is to receive the following certificates:

- Classification Certificate (Interim) for Hull and Machinery- Loadline Certificate- Builder’s Certificate- All Test Certificates for machinery and equipment issued by

Classification Society and manufacturers

1.05 DRAWINGS / MANUALS / DOCUMENTS ON DELIVERY

The following drawings, manuals and documents in triplicate are to besupplied at the time of handing over:

- General Arrangement plan- Structural Profile and plan- Midship Section- Bulkhead drawings- Machinery/Engine Room lay-out- Details of leg structure- Drawings for Jack house structure- Diagrams of air filling and sounding pipes- Diagrams of bilge/ballast water piping- Diagrams of electrical installation- Operation and Instruction manuals for main equipment and

machinery- Safety Plans- Stability Booklet, Tonnage Computations, Operating Booklet


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1.06 REGISTRATION

The vessel is to be registered with MMD under CV act. All certificates,documents necessary shall be supplied.

1.07 DEAD WEIGHT CAPACITY

Dead weight capacity of the fully equipped vessel, i.e. Deck Load forconstruction materials , fuel oil, fresh water, sanitary, miscconsumables &stores, Personnel and effects, provision, Constructionequipment etc. shall be around 670T

1.08 TEST & TRIALS

All tests as per the Classification Society requirements during theconstruction, to be carried out by the Builder. After completion of thevessel, the following test and trials are to be carried out:

1. Inclining Test2. Anchor trials3. Jacking System Trials.4. All Machinery/Equipment Trials

1.09 STABILITY AND TRIM

On completion of construction of the vessel, inclination test is to becarried out in presence of MMD Surveyors and stability data for allrelevant conditions to be furnished. Trim & Stability booklet, dulyapproved by D. G. Shipping to be provided.

1.10 MATERIAL AND WORKMANSHIP

All materials used throughout the construction of the vessel,machinery, fittings, installations etc. are to be of the highest quality.The steel used is to be ABS/IRS Grades or equivalent approved steelas specified in the respective drawings.

All materials used must confirm to the rules of specifications andsatisfy the requirement of the Classification Society.

The workmanship is to be the best of its respective kind and to theentire satisfaction of American Bureau of Shipping / Indian Register ofShipping & Mercantile Marine Department, Surveyors .and the Owner.The cost of all tests and analyses is to be borne by the Builder. TheOwner will have the full authority to adopt any means they thinkadvisable to satisfy themselves to the quality of the materials used.


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1.11 GENERAL

If any item(s) is/are repeated more than once in the specifications, it isto be understood that these items(s) to be supplied and/or equipped

only once.

Any requirements specified by the Owner is minimum even thoughthey may be in excess of the requirements of the rules and regulationsof the Classification Society and / or Statutory Authorities as specifiedherein and/or content of this specification. In addition to that, all rulerequirements for intended service are to be complied with. The Buildershall comply with all specifications of the Owner and / or that ofClassification Society and / or Statutory Authorities whichever ishigher. If the finalised specifications is less than that of Classification

Society and / or Statutory Authorities’ rules, regulations andrequirements as on the date of signing of this contract, improvementsto the specifications of Classification Society and / or Statutory Authorities shall have to be complied by the Builder.

If any inconsistency is found between the contract and thisspecification and plan(s), the former shall prevail unless specificallyagreed otherwise.

After the first jack up barge is finished, any changes /non-conformities

noted with respect to the stated specifications to be incorporated in thesubsequent vessels.

1.12 EMBLEM & OTHER MARKS

The name of the vessel and the port of registration are cut out of 6 mmplating and welded to the side shell at the usual locations, as perStatutory Rules. Size of lettering shall be as per class requirements.

The Owner’s emblem shall be provided to the outsides of the funnel.

Draft marks are carefully marked on the hull before launching. Marksare made of 6mm steel plates, are in metric units and are positionedforward, aft, and mid-ship.


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SECTION 2: Owner supplied items

Owner shall supply the following:

1 Design

The barge will be designed by M/s AB Marine Consultants and classapproved drawings will be supplied to the shipyard

2 Steel

The steel required for the barge shall be supplied by the owner

3 Jacking system

The jacking system used for elevating the hull to the desired height and

also to lower it into the water.

The supply shall consist of :

• Main Jacking system for Barge Jacking including jacks, powerpack

• Pin operating cylinders

• Limit switches

4 Mooring system

Mooring winches with powerpacks

Anchors & wire ropes

5 Gensets

2x250 KVA 415 V, 3 φ Gensets

1x60 KVA 415 V, 3 φ Gensets


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SECTION 2: DESIGN CRITERIA

2.01 DESCRIPTION OF THE UNIT

The Unit shall be a Self-Elevating Jack-up Platform intended for ‘RestrictedService’ in Coastal waters. The Unit shall be used for Piling operations andSoil Investigation.

The Unit shall be designed as a pontoon with 4 legs and shall be providedwith Hydraulic Jacking System. The equipment shall be mounted on theMain Deck and Piling and drilling operations shall be carried out from thedeck. All generators and hydraulic power packs shall be mounted below theMain deck. Rest rooms and office spaces shall be provided above Main

deck.

General Arrangement is enclosed.

VESSEL PARTICULARS

Length Overall 35.00 MBreadth 30.00 MDepth 2.75 MDraft (Pontoon) 2.00 M

Displacement (Maximum) 1720 TLightship Weight 1050 T

LEG DETAILS

Material As per the DrawingLeg size 1750 MM DIALeg Length 55.00 MLeg Weight 90 T per Leg

ENVIRONMENT (Afloat condition)

Wind Speed 70.00 Knots

CLASS NOTATION

The vessel will be built under the classification of ABS/IRS and shall beeligible to be classed as ‘A1 Self Elevating Unit, Restricted Service” as anunmanned barge as per ABS or “SUL Self Elevating Platform for IndianCoastal Service, IY”: as an unmanned barge


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DESIGN CODES

The vessel shall be designed in accordance with the followings codes:

• ABS Rules for Building and Classing Mobile Offshore Drilling Units.

• AISC – Manual of steel construction

• IMO code on Intact stability

2.02 SERVICE ENVIRONMENTAL CONDITIONS (Elevated Condition) - I

The Jack-up Barge is intended for ‘Restricted Service in Coastal Waters’.

These are the environmental conditions under which the JU Barge can carry

out the piling & soil investigation operations.

Case A

Water Depth (Incl. Tide) 26.00 M

Wave Height 2.00 M

Wave Period 8.00 Sec

Current (Uniform) 6.00 Knots

Wind 20.00 Knots

Air Gap 1.25 MMaximum Soil Penetration 6.00 M

Soil Strength 25.00 T/M2

Min Air temperature 10 0C

Min Sea Temperature 15 0C

Variable Load 670 T

Case B


Wave Height 2.00 M



Wind 20.00 Knots

Air Gap 1.25 M

Maximum Soil Penetration 0.00 M (Scouring)




Variable Load 670 T


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Case C


Wave Height 2.00 M


Current (Tidal –Ref Loading Scheme

for current profile ) 8.00 Knots

Wind 20.00 Knots

Air Gap 1.25 M

Maximum Soil Penetration 6.00 M


Min Air temperature 10 0CMin Sea Temperature 15 0C

Variable Load 670 T

Case D


Wave Height 2.00 M


Current (Tidal –Ref sketch for

current profile ) 8.00 Knots

Wind 20.00 Knots

Air Gap 1.25 M





Variable Load 670 T


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Case E


Wave Height 2.00 M

Wave Period 8.00 SecCurrent (Uniform) 6.00 Knots

Wind 20.00 Knots

Air Gap 1.25 M





Variable Load 535 T

Case F


Wave Height 2.00 M



Wind 20.00 Knots

Air Gap 1.25 M





Variable Load 535 T

Case G


Wave Height 2.00 M


Current (Tidal ) 8.00 Knots

Wind 20.00 Knots

Air Gap 1.25 M


Soil Strength 25.00 T/M2Min Air temperature 10 0C


Variable Load 535 T


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Case H


Wave Height 2.00 M

Wave Period 8.00 SecCurrent (Tidal ) 8.00 Knots

Wind 20.00 Knots

Air Gap 1.25 M





Variable Load 535 T

Case I


Wave Height 2.00 M


Current (Surface) 4.00 Knots

Wind 20.00 Knots

Air Gap 1.25 M





Variable Load 300 T

Case J


Wave Height 2.00 M


Current (Surface) 4.00 Knots

Wind 20.00 Knots

Air Gap 1.25 M


Soil Strength 25.00 T/M2Min Air temperature 10 0C


Variable Load 300 T


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2.03 SERVICE ENVIRONMENTAL CONDITIONS (Elevated Condition) - II

The Jack-up Barge is intended for ‘Restricted Service in Coastal Waters’.

These are the survival environmental conditions. However operations to be

suspended.

Case A


Wave Height 2.00 M



Wind 50.00 Knots

Air Gap 1.25 M





Variable Load 600 T

Case B


Wave Height 2.00 M



Wind 50.00 Knots

Air Gap 1.25 MMaximum Soil Penetration 0.00 M (Scouring)




Variable Load 600 T


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Case C


Wave Height 2.00 M



Wind 50.00 Knots

Air Gap 1.25 M





Variable Load 600 T

Case D


Wave Height 2.00 M



Wind 50.00 Knots

Air Gap 1.25 MMaximum Soil Penetration 0.00 M (Scouring)




Variable Load 600 T

Case E

Water Depth (Incl. Tide) 26.00 MWave Height 2.00 M



Wind 50.00 Knots

Air Gap 1.25 M





Variable Load 460 T


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Case I


Wave Height 2.00 M

Wave Period 8.00 SecCurrent (Uniform) 2.00 Knots

Wind 50.00 Knots

Air Gap 1.25 M





Variable Load 300 T

Case J


Wave Height 2.00 M



Wind 50.00 Knots Air Gap 1.25 M





Variable Load 300 T


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2.04 DESIGN LOADINGS AND JACKING SYSTEM

Design Loads

Variable Load 670 T (Concrete Piling)

535 T (Steel Piling)

300 T (43 m Water Depth)

Variable load is the load of all the cranes & other material carried on the

barge for various operations.

The breakup for the variable load is as follows:

Concrete Piling

Piling Cranes 200 T

Load on Piling Cranes 30 T

Utility Crane 150 T

Load on Utility Crane 40 T

Piling Guide 20 TBentonite + Water 100 T

Construction Materials 100 T

Consumables + Fuel 30 T

Total variable load 670 T

The arrangement of cranes and other loads shall be as shown in the

sketchSteel Piling

Utility Crane 300 T

Load on Utility Crane 75 T

Piling Guide 20 T

Hammer + Leader 60 T

Construction Materials 50 T

Consumables + Fuel 30 T

Total variable load 535 T


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The arrangement of cranes and other loads shall be as shown in the

sketch

Elevated Load 1370 T (Concrete Piling)1235 T (Steel Piling)1000 T (43 m Water Depth)

Elevated load is the total load of the hull and the variable load.

Jacking System

The Jacking System comprising of 12 Hydraulic cylinders of 150 T capacity

each, arranged as 3 cylinders per leg with a central power pack powered by

electric motors.

The load transfer between the legs, cylinders and the Hull shall be by means

of a positive locking system comprising being of pins mounted on the Hull

and the Cylinders, the Legs being provided with Holes at a pitch of 750 MM.

No of Hydraulic Cylinders 12

No of Jacking Systems 4Jacking Capacity 1800.00 T

Stroke 1600 MM

MOORING SYSTEM

Design Environment

The Mooring System shall be designed for the following environment.

Current 4.00 KnotsWind 10.00 Knots

A Four Point Mooring System shall be provided to station the barge withreasonable accuracy before jacking up for construction.

The Mooring System consists of the following components

Anchors 4.00 NosType of anchor Stockless Bower anchor Anchor Weight 4.50 T

Or Anchors 4.00 NosType of anchor HHP – AC 14 anchor Anchor Weight 3.00 T


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Winches 4.00 NosWinch Capacity (Static Pull) 12.5 TWire Rope Size 32 mmWire Rope Length 300 m per Anchor

Anchors & Ropes

4 no. Anchors of Weight 4.50T each shall be provided on the Barge. The Anchors may be Stockless Bower Anchors or High Holding Power AC 14 Anchors. IWRC Ropes of 32mm dia and 300 mm length per anchor shall beprovided.

STABILITY CRITERIA

In the afloat condition the vessel shall satisfy the following stability

criteria.

Intact Stability

The Metacentric Height shall be to be at least 0.5 M.

The area under the righting moment curve to the second intercept, or a

lesser angle, shall be not to be less than 40% in excess of the area under the

wind heeling moment curve to the same limiting angle, the wind velocity of

50 Knots.The second intercept of the righting moment and the heeling moment curves

shall be to occur at an angle of heel of at least 30 deg associated with a wind

velocity of 70 Knots.

The curves for the wind heeling moments are to be calculated according to

Chapter 3, Section 2 of the IMO code for the Construction and Equipment of

Mobile offshore Drilling Units.

Minimum Standard of closing of openings leading to spaces which are

assumed buoyant, for the purpose of achieving the necessary area under the

GZ curve shall be to be as follows:

- When immersed before equilibrium position (I intercept) taking into

account the effect of wind: Watertight Closed.

- When immersed beyond equilibrium position up to the Dynamic angle :

Weather-tight closed.


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SECTION 3: STRUCTURE

3.01 GENERAL

The hull has a double chine form with a transom stern and a taperedbow as per G.A. plan. Construction of the vessel to be withShipbuilding quality steel plates & sections of IRS/ABS Grades as perthe respective drawings.

The structural work to be executed in accordance with standardshipbuilding practice meeting the requirements of ClassificationSociety.

The vessel is to be of all welded construction. The welding shall be

carried out as per welding scheme approved by the ClassificationSociety. Electrodes to be used must be of approved quality. X-rayphotographs of welds of hull and deck seams, machinery seating, etc.will be taken at locations indicated by Class.

Hull & Scantling shall be in accordance with the requirements ofClassification Society for Coastal Service vessel. Scantlings as perrule requirements to be mentioned on the drawings.

3.02 BOTTOM CONSTRUCTION

All spaces to have single bottom construction. Floors in way ofmachinery room to be strengthened for foundations and fulfillment ofClassification requirements.

Height and construction of floors are to be in accordance withClassification Society requirements.

Drainage holes on the bottom of floors and side girders to be properlydistributed and to be large enough to ensure proper bilging.

The transom stern to be well attached to the keel plating and transomfloor plate.

3.03 SHELL PLATING WITH FRAMINGShell plating, girders, framing etc., to be designed as necessary tomeet Class requirements.

Thicker plates or doublers to be arranged in way of openings such as,sea chests, mooring fittings and elsewhere as necessary


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3.04 LEGS

The jack up barge is to be designed with four circular legs of 55 mlength. The legs are to be fabricated with Shipbuilding quality steel

plates of ABS/IRS Grade as per the drawing.These are to be operated with the help of jacking system.

LEG DETAILS

Leg size 1,750 MM DIALeg Length 55.00 M

LEG INSTALLATION

All four legs of length 55 m each shall be erected in the shipyard.

3.05 BULKHEADSWatertight transverse bulkheads stiffened on one side to be arrangedas shown in the G.A. Plan.

Bulkheads in machinery room and above are to be constructed in lineas far as possible.

3.06 JACK HOUSE

A jack house constructed above deck with steel encircles the jack upleg with suitable stiffening to house/mount the jacking system. Thematerial grade for jack house has to be ABS/IRS Grades as per thedrawings.

3.07 DECKS

All decks are to be constructed of steel and to be of all weldedconstruction.

Plating at corners of large deck openings to be well rounded asrequired by rules. The deck plating shall be strengthened in way offoundations, mooring fittings, and any other load transfer points to thehull.

3.08 TANKS

Ballast water tank to be provided in order to adjust the trim of thevessel and also to function as preload tanks. Fresh water tank, bunkertanks, and daily service tanks for fuel oil to be arranged in machinerycompartment as shown in the G.A. Plan.

Tanks to hold fresh water for making bentonite solution to be providedalong with other tank of similar capacity to store the bentonite solution.These tanks will be located in such a manner that the combined COGof the vessel during operation will be at the center of the barge.


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3.09 FOUNDATIONS

All welded foundation seats of substantial construction to be fitted forthe auxiliary machinery arranged in the machinery room and/or on

deck. Engine/Machinery manufacturer’s recommendation to beconsidered.Suitable reinforcement by appropriate means shall be provided wherenecessary.

3.10 DECK HOUSE

Three tier deck house is to be arranged aft as shown in G.A. plan. Thedeck house is made of steel and has welded construction. The formand layout is according to the G.A. plan. Scantlings of deck house to

be as per Class requirements.

All outside walls and engine casing including the inner wall of galley,WCs & lavatories to be of mild steel bulkheads with necessarystiffeners.

SEA CHEST

Two sea inlet wells shall be provided in the engine room. These shallbe of dimensions as given in the drawings and the openings in the

shell shall be fitted with galvanized mild steel grids held in position bybolts and nuts. The area of flow through the grid shall be a minimum of2.1/2 times the area of flow through the respective pipelines.

Aluminum anode shall be fitted in each well.

The sea valves attached to the wells shall be class approved. For eachsea chest, one strainer and isolating valve shall be fitted on the suctionline immediately after skin opening.

The sea chests shall be inter connected with a pipe line of adequatediameter.

3.11 RAILING

Railing of 1000 mm height shall be arranged on the main deck andaround the control cabin as shown in the G.A. plan.


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3.12 FUNNEL

A self stayed funnel of adequate size and aesthetic looks as shown inthe G.A. plan to be fitted.

The funnel to be suitably stiffened. The funnel shall be provided withlouvers of adequate size for mechanical ventilation of the machineryRoom.

The Owner’s insignia shall be marked and painted on either side of thefunnel.

3.13 ENGINE CASING & SKYLIGHTS

Engine casing of suitable dimensions shall be positioned as shown inG.A. Plan and shall be trunked through the deck house.

Engine Room skylights to be arranged with hinged openable flapshaving port holes fitted on. Flaps to be complete with toggles etc., forwater tightness.

The engine casing, skylight and funnel to be bolted on suitable steelcoaming, so that in case of any major maintenance, the machineryparts can be removed through this space.

3.14 MASTS

A mast shall be provided on the Control cabin top as shown in the G.A.Plan.The masts, made of steel pipes shall be fixed type and shall besupported by means of wire rope stays with rung ladders for mounting.

3.15 LADDERS AND STAIRWAYS

Ladders and stairs are made of steel and as per Class and Statutoryrequirements as applicable. Stairs from main deck to control cabinshall be of 600 mm width. The machinery Room stairs shall be madeof steel. All stairways shall have handrails of galvanised pipe.

Steel Rungs to be fitted for access to ballast /F W Tanks, vertical rungladders to be fitted generally in all tanks, store spaces, to control cabintop, machinery room for emergency and elsewhere as required.Ladders and stairs shall be fitted with railings of galvanised pipes onone / both sides as required.


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3.16 SKEG

The skeg shall be double plated and sufficiently stiffened. Twonumbers as shown are to be provided.

3.17 FENDER

All half round steel pipes should be of 200 mm. dia. and 8 mm.thickness, stiffened by semi circular steel brackets are to be used asfender. Lugs to be welded on the deck for providing tyre fenders alllong the sides.

3.18 PAINTING

Steel plates to be blasted to bare steel, SA 2.5 standard by either shot

blasting or sand blasting and coated with shop primer before use. TheDFT of the shop primer to be of required standards. After fabrication,steel hull to be prepared for painting. Any dust, rust or corrosion is tobe removed prior to the application of paints. Prior to application ofpaints, the surfaces are to be cleaned by spraying fresh water.

All paints shall be of reputed brand. Painting works shall be executedin accordance with the paint manufacturer’s recommendations formarine use. Color scheme followed to be according to Owner’schoice. Epoxy based painting scheme to be followed. Anti slip epoxy

coating for all external floors shall be applied.

PAINTING SCHEME

Plates will be sand blasted to SA 2.5 std. Epoxy based painting scheme is asfollows:

1. Keel to light waterline (including bottom)

- 1 x Epoxy Primer ( 30 Mic)- 2 x Anticorrosive paint ( 125 Mic each)- 1 x Tropical antifouling paint ( 75 Mic)

2. Boot Topping

- 1 x Epoxy Primer (30 Mic)- 2 x Anticorrosive paint (125 Mic each)- 1 x Boot topping paint (50 Mic)

3. Top side (Hull above LWL) including bulwark

- 1 x Epoxy Primer (30 Mic)- 2 x Vinguard (75 Mic each)- 1 x Pioneer top coat (50 Mic)


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4. Exposed Decks

- 1 x Epoxy Primer (30 Mic)- 2 x Anticorrosive paint (150 Mic each)- 1 x Hard Anti-skid deck paint (50 Mic)

5. Tanks /Void spaces/Jackhouse

- 1 x Epoxy Primer (30 Mic)- 2 x Jotaguard 85 black/brown (125 Mic each)

6. Interior of Engine room

a) Bilge and floors- 1 x Epoxy Primer (30 Mic)

- 2 x Bituminous black or coal tar epoxy paint(125 Mic each)

b) Side and Deck heads- 1 x Epoxy Primer (30 Mic)- 2 x Epoxy top coat above floor plate level (40 Mic each)

7. Interior of Deck house behind lagging

- 1 x Epoxy Primer (30 Mic)- 2 x Epoxy top coat (40 Mic each)

8. Fresh water tanks

- 2 x Epoxy Primer (30 Mic each)- 2 x Epoxy (non-toxic) top coat (40 Mic each)

9. Legs

- 1 x Epoxy Primer ( 30 Mic)- 2 x Anticorrosive paint ( 125 Mic each)- 1 x Tropical antifouling paint ( 75 Mic)

3.19 CATHODIC PROTECTION

Adequate numbers of aluminium alloy sacrificial anodes to be fitted onto the under water hull to prevent hull corrosion.


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SECTION 4: MACHINERY,EQUIPMENTS AND

MISCELLANEOUS ITEMS

4 OUTFIT & DECK MACHINERY

4.01 ANCHORS & ROPES

A four point mooring system shall be provided to station the barge withreasonable accuracy before jacking up for construction.

4nos. Stockless Bower anchors of 4500 Kg. each, secured to 4 nos.steel wire rope capacity of 300 m of steel wire rope size 32 mm.

4.02 ANCHORING/MOORING WINCHES

4 nos. Hydraulic winches to be fitted as shown on the deck.. Deckunder winch foundation to be adequately stiffened. Capacity of suchwinch shall be at least 15 Ton static pull and speed shall be 9 Mtrs. perminute minimum. The winches to serve dual purpose of anchoring andmooring.

The System is to be complete with power pack, controls, relief & pilot

valves. The whole system is to be designed, manufactured andsupplied with Class certification.

4.03 MOORING FITTINGS

4 sets of Roller fairleads shall be arranged. Doubler plates shall beprovided in way of fairleads.

4.04 ACCESS HATCHES AND MANHOLES

Access hatches with size prescribed by Rules with water tight steelcovers for access, wherever required, to be arranged as shown in GAPlan. Covers of access hatches are to be provided with stainless steelswing bolts and butterfly nuts.

Sufficient number of water-tight manholes to be provided for goodaccess to all tanks. Manholes flush with the main deck to be provided.Studs and nuts of manholes not to project above the deck.


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4.05 PORT HOLES & WINDOWS

All cabins shall be provided with windows fixed or openable to be ofaluminium anodized/MS outer frame fitted with toughened clear glass.

All toilets shall be provided with port holes to be fixed type of MSFrame fitted with frosted glass. If windows are permitted instead of portholes by rules, those are to be fitted.

Windows to be of rectangular type and except windows on the frontbhd. of control cabin which are fixed, all other windows shall beopenable, complete with hinge and stopper. Numbers and position ofport-holes and windows as per GA Plan.

Wipers on all windows for control cabin.

4.06 DOORS

Doors to be arranged as shown in the GA Plan. All inside doors foraccommodation shall be made of wooden panel boards. MachineryRoom steel door shall be gas-tight. All exposed doors, i.e. Accommodation and Bridge shall be of steel and of water tight design. All doors shall be fitted with lock releasable from both sides of door,

handles and door-stoppers.

4.07 DECK COVERING

All exposed steel decks and accommodation decks to be of bare steeland coated with marine type deck paints.

Deck sheathing /sleepers to be provided in way of crane operatingareas on the Main Deck.

.


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SECTION 5: SAFETY & NAVIGATIONAL EQUIPMENT

5.01 LIFE SAVING APPLIANCES

All life saving equipment provided shall be approved / type approved byMMD. Life saving appliances to be provided to meet Statutory Rules andOwners requirements.

- 2 nos. life rafts of 20 persons capacity each- 6 nos. Life Buoys SOLAS type : - 2 nos. without fitting(with vessel’s name in Hindi & English) - 2 nos. with 30m life line

- 2 nos. with SI lights & 30mlife line

- 33 nos. Life Jacket SOLAS type, with light, whistle and retro-reflective tapes

5.02 FIRE FIGHTING APPLIANCES

Fire Fighting appliances to be fitted as per requirement of regulatoryauthority and following Owner’s requirement:

- 1 No. Fire Pump of BE make, capacity 65 cu.m./hr.- 4 Nos. Fire Hydrants- 4Nos. Canvas Fire Hoses with jet cum Spray Nozzles in cabinet

- 4 No. 9 Ltrs. Soda Acid type- 4 Nos. 9 Ltrs. Foam type- 1 No. 45 Ltrs. Wheeled type foam extiguisher- 5 Nos. 10 Ltrs. Fire buckets with lanyard- 1 Nos. 6 cu.ft. Sand box with scoop- 1 No. Fireman’s Axe

5.03 LIGHT & SOUND SIGNALS AND SHAPES

Light and sound signals to be provided and fitted in accordance with the

rules for Prevention of Collisions at Sea. The following minimum double tierlights, operating on 220 V AC. and shapes to be provided.

- 1 Nos. Mast head light (electric & oil)- 1 No. Port side light (electric & oil)- 1 No. Starboard side light (electric & oil)- 1 No. Stern light (electric & oil)- 2 Nos. Anchor light (electric & oil)- 2 Nos. Not Under Command light, oil type- 1 No. 1000 W Search light

- 3 Nos. 600mm Black balls- 2 Nos. 600mm Black Diamonds shape- 1 No. 300mm Brass bell (with vessel’s name in Hindi & English)- 1 No. Mechanical Fog Horn


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5.04 NAVIGATIONAL & COMMUNICATION AIDS

1) Window Wipers for all windows

2) 1 No. Hand held, battery-operated Loud Hailer3) 2 No. VHF set ICOM 25 Watt M-454) 1 No. Search light – 1000 W.5) I No. Magnetic compass of minimum 200 mm diameter binnacle.

The compass shall have provision for correction and sparemagnets shall be supplied.

6) 1 No. Hand held Line7) 1 No. Marine Clock8) 1 No. Navigation light panel9) I loud Hailer

10) A public address system11) Intercom connecting all spaces.


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SECTION 6 : MACHINERY SPECIFICATIONS

6.01 GENERAL

All machinery and equipment are to be manufactured, inspected and fitted inaccordance with Classification Society’s rules and requirements and relevantcertificates to be provided. Owner has the right to witness the testing andshould be informed of testing date 10 days in advance.

6.02 HYDRAULIC JACKING SYSTEM

General

The jacking system is intended for use on a Jack-up Barge of the following

dimensions:The jacking system is used for elevating the hull to the desired height andalso to lower it into the water

The jacking system is further used to hoist/lower the legs.

Jacking System

No of Jacks/Leg : 3 & total 12 jacks – each jack of 150 tcapacity in pull mode

Capacity/Leg : 450.0 T in pulling modeStroke : 1600 mmSpeed : 1.6 M in 5 Mts when all jacks areoperating

The System is to be complete with power pack, controls, relief & pilot valves.The whole system is to be designed, manufactured and supplied with Classcertification.

The system shall comprise of Hydraulic cylinders, Power pack, Controlsystem Piping


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6.03 GENERATORS

General

The Gensets shall be Marine Gensets to serve as source of power on avessel.

Quantity and Specification

Power: 250 KVA @ 440 V, 50 Hz with 0.8 pfQty 2 nosPrime mover Diesel Engine

The above genset shall be suitable for marine applications.

Power: 60 KVA @ 440 V, 50 Hz with 0.8 pfQty 1 noPrime mover Diesel EngineThe above gensets shall be suitable for marine applications.

The gensets shall be suitably installed in the machinery compartment and allnecessary fuel supply, cooling arrangements etc shall be made.


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SECTION 7 : PIPING, VALVES AND PUMP SYSTEM

7.01 GENERAL

All the piping systems shall be installed in accordance with best marinepractice and to be to the satisfaction of classification. The piping system ingeneral shall be laid out neatly and shall be accessible for maintenance andrepairs. Securing arrangement with proper clamps shall be arranged.

Gun metal non return valves shall be fitted on all overboard discharges. Allsea cocks shall be gun metal screw down valves and readily accessible. Allother valves shall be generally of cast iron body with gunmetal internals.

Suitable bulkhead pieces shall be fitted in each place where pipes pass

through bulkheads, decks, etc. Quick closing valves shall be provided on fueloil tanks. Slip on flanges and stud flanges shall be used for pipe joints.

Piping layout drawings for each major system shall be approved byClassification Society.

7.02 PUMPS

Bilge/Ballast/Fire system

Two no. Bilge cum Ballast pump and One no. General Service cum FireFighting pump to be provided with inter connection between the pumps.

Bilge/Ballast pump shall be electric driven. The General Service cum Firepump to be electric motor driven. Both pumps shall be of BE make, theengine of KIRLOSKAR make and motor of Crompton make. Capacities tobe suitable for the respective services, (about 65 Cu. M. per Hr. at 30MWC).

An additional electric driven fire pump to be provided of 50 m3/Hr of 25 MWC

on main deck with a suction line capable of pumping water during jackedup(highest) condition.This pump can be used to supply SW to overhead tanksupplying SW to water closets.

Fresh Water

2 nos FW pump of capacity 25 m3 /Hr to be located in the machinery room topump water from FW tanks for the purpose of making bentonite solution andto serve overhead tank for FW.


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The following piping systems shall be provided:

Bilge/ballast/fire fighting system Air & sounding systemFuel Oil system

Cooling system for machineryHydraulic piping for Jackng system and mooring winchesDiesel engine exhaust system

Air & SoundingPipes to be provided for the escape of vapour and gases from tanks.Thesepiping has to be of sizes as per class requirement.Sounding pipes to be provided for all tanks.

7.03 PIPING MATERIAL

The material for various piping system shall be in accordance with thefollowing table:

Piping system - Material

Main & Auxiliary raw water }Bilge & Ballast lines } - MS Galvd. ERW C ClassDomestic SW line }Domestic FW line } - MS Galvd. B Class

Sanitary line } - MS Galvd. C ClassFire Fighting line } - MS Galvd. C ClassScupper & Discharge line } - MS Galvd. C ClassFW & SW Cooling line } - MS Galvd. C Class

Exhaust system - MS Seamless Sch 20

Fuel/Lub. Oil piping - MS Seamless Sch. 40

7.03 Sanitation And Water Supply

A sewage-holding tank of 5t capacity has to be provided in the bottom forholding sewage water from closets, bathroom, galley etc. A suitable motordriven pump of 10 m3/Hr of min 5 m head is to be provided for the dischargeof sewage from the holding tank.

The water supply for, bathroom, galley shall be made available throughoverhead FW tanks of total 2T capacity. These tanks shall be serviced byFW pump to supply water from under deck Fresh water tank.

Water supply to Water closets shall be serviced by an overhead tank of 2tcapacity and these tank will be supplied with sea water.

Potable water for drinking purpose shall be stored in portable tanks kept atsuitable height.


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SECTION 8 : VENTILATION

The machinery room shall be provided with forced mechanical ventilation,consisting of one supply and one supply / exhaust system. Each system shall

be capable of at least 20 changes per hour. Or as per rule requirementswhichever is higher.The system should be suitable for the machinery roomhousing 2 gensets of 250 kva and 1 gen set of 60 kva.

Ventilation system for the machinery compartment shall consist of forcedsupply system and distribution system. The air supply shall cater forgenerator engine combustion air requirement and cooling requirement of thecompartment.

Living spaces shall be naturally ventilated and shall be provided with wall-

mounted fans.

The ventilation layout and calculation shall be approved by the designconsultant

All enclosed spaces to be provided with air pipes / goose neck ventilators.


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SECTION 9 : ELECTRICAL SYSTEM

GENERAL

Electrical apparatus and wiring systems shall comply with classification’srequirement. All electrical fittings used, shall be of good quality and suitablefor tropical and marine environment. All electrical fittings shall comply withthe relevant IEC requirement. Electric cables to be as per IEC 92-3. Theinsulation class of electrical equipment shall be as per rule requirement.

SYSTEM OF SUPPLY

24 V DC for control panels and electronic equipments, Navigation Lights.220 V, 1 PH, 50 Hz AC for general lighting.

220 V AC for navigational lights.415 V, 3PH, 50 Hz for machinery.

MAIN SWITCHBOARD

The switchboard shall be of dead front marine type in accordance withclassification requirements. The apparatus mounted thereon shall consist ofall necessary double / triple pole switches, HRC fuse instrument for thecontrol of gen. Set, earth testing and illuminating lamps and fittings insulatedhand-rails.

DECK & CABIN LIGHTING

All lightings shall be incandescent. All deck lighting to suit 24 hr operations.

NAVIGATION LIGHTS

AC supply navigational lights shall be fitted and controlled by a switchboardpanel in the control cabin.

SEARCH LIGHT

One no. Searchlight 1000 W shall be provided with about 1 meter stand andremote handle in control cabin for movement. To be operational for 24 hrs.

BATTERY BANK

Four nos. lead acid batteries each of 12 V, 180 AH capacity to be provided.One set of batteries shall be used for engine starting. The batteries shall becharged by the battery charging alternators provided with the auxiliaryengines for gensets through selector switch

Jack Up Barge Specs1

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