Presentation Khan Khwar Project Besham by Geologist Abdul Wahab Orakzai
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Transcript of Presentation Khan Khwar Project Besham by Geologist Abdul Wahab Orakzai
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GEOLOGIST
• ABDUL WAHAB ORAKZAI• UNIVERSITY OF AZAD JAMMU AND KASHMIR
MUZAFFARABADSESSION 2008-2012
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WELCOMETO
INDUS TRIBUTARIES HIGH-HEAD
COMPLEX PROJECTS
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INDUS TRIBUTARIES HIGH HEAD HYDROPOWER COMPLEX
PROJECTS BESHAM
1. KHAN KHWAR HYDROPOWER PROJECT
2. DUBER KHWAR HYDROPOWER PROJECT
3. ALLAI KHWAR HYDROPOWER PROJECT
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EMPLOYER
WATER AND POWER DEVELOPMENT AUTHOURITY
(WAPDA)
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CONSULTANTS
HIGH-HEAD CONSULTANTS
(HHC)
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1. NATIONAL DEVELOPMENT CONSULTANTS.
2. LAHMEYER INTERNATIONAL GmbH, GERMANY.
3. BAK CONSULTING ENGINEERS.
4. PAKISTAN ENGINEERING SERVICES.
5. ENGINEERING GENERAL CONSULTANTS.
6. INFRA-D CONSULTANTS.
7. BARQAAB CONSTLTING SERVICES.
8. DEVELOPMENT MANAGEMENT CONSULTANT.
9. REVIEW CONSULTANTS.
HIGH-HEAD CONSULTANTS (HHC)A JOINT VENTURE OF
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KHAN KHWAR
HYDROPOWER PROJECT
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KHAN KHWAR HYDROPOWER PROJECT
CONTRACTORS
1. CIVIL CONTRACTOR SINOHYDRO
2. E&M CONTRACTOR DONG FANG
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INTRODUCTIONThe Khan Khwar HPP is located on the river Khan Khwar, a right bank tributary of the River Indus in the Shangla District (KPK). The intake structure is located on the right bank of Khan Khwar. The diverted water crosses the ridge between Khan Khwar valley and Indus valley via an underground water way conduit of some 5.14km length. The Powerhouse is located at the right bank of Indus River. The maximum power output of this plant will be 72 MW, corresponding to a turbine design discharge of 35 m3/s at a max. gross-head of 257 m. The Khan Khwar HPP will produce an annual energy of some 306 GWh, out of which approximately 105 GWh/a will be available during a 04 hour/day period of peaking operation.
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PROJECT IMPLEMENTATION DATAPC-1 Cost Approved……………………………..……………………….…Rs. 8301.479 Million
1) KC-01 (LOT C&HS) i. Contract Price ……………………………………………….……….....Rs.1816.259 mil. (original) Rs. 3542.047 mil. (revised) ii. Date of Issuance of Construction Order (Contract)…….June 16, 2003 iii. Date of Issuance of Construction Order (Actual)………..Jan 12, 2005 iv. Schedule Date of Completion/Period …………………........Oct 11, 2008 (46 months) after Approval of EOT of 362 days. v. Date of Completion as per MOU # 2……..…………………….Feb 15, 2011 vi. As Per Contractor’s Revised Work Schedule……………… .Mid February, 2012
2) KE-04 (E&M) i. Contract price …………………………………………………………..Rs 732.445 mil. (original)
Rs. 848.880 mil. (revised) ii. Schedule Completion Date/Period ………………………….Oct 11, 2008 (46 Months) after Approval of EOT of 362 days
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1. ReservoirTotal Storage Capacity
Live Storage Capacity
Length
1.05 Million m30.40 Million m3
1.60 km
2. Weir Structure Type
Height Above River Bed
Crest Length
Crest Elevation
Concrete Gravity
29 m
116 m829 masl
3. Stilling Basin Length
Width
60 m
54 m
MAIN FEATURESWeir Site
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4. Headrace TunnelType
Length
Size
Discharge Capacity
Circular
4535 m
3.85 m (int. dia)
35 m3/sec.
5. PowerhouseType
Size
Machine Hall
Machine Hall Floor Ele.
External
50.7 x 33.6 x 39.0m
50.7 x 19.6 x 16m
586.00 masl
6. Pressure Shaft Length of Shaft
Shaft Size (dia)
183m
3.25 m
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7.
a.
b.
Pressure Tunnel
Concrete Lined Section
Length
Size (Int. dia.)
Steel Line Section
Length
Size (Int. dia)
125 m
3.25 m
290m
3.00 m
8. Tailrace TunnelCovered Tunnel Length
Open Channel Length
41 m
17 m
9. HeadMax. Operation Level
Min. Operation Level
Max. Gross Head
Min. Gross Head
825 masl
818 masl
257 m
247 m
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1.
a
Hydro Mechanical Equipment
Francis Turbines
Speed
Discharge
2 No
500 rpm
16.5 m3 / s (each)
b Vertical Pelton Turbine
Speed
Discharge
01 No
428 rpm
02 m3/s
2.
a
Electrical Equipment
Main Units
Speed
Output
2 No. Generators
500 rpm
34 MW (each)
MAIN FEATURESElectro Mechanical
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b Auxiliary Unit
Speed
Output
428 rpm
04 MW
3. Energy Output 72 MW
4. Mean Annual Energy 306 GWH
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CONSTRUCTION ACTIVITIES AT Weir Site
Weir Structure , Power Intake, Headrace Tunnel, Powerhouse, Switchyard, Pressure System and Surge System are 100 % completed.
Remaining Work:Under MOU # 2 approved by the authority Pak Rs. 1,100.0 Million (i.e. including payment against Contractor’s claim for construction Power Supply, as already determined by the Engineer’s) shall become payable to the Contractor as final claim / dispute settlement.The Contractor was to be ensure completion of following mile stone:1.Mile-Stone No. 25 (water re-system ready for commissioning by September 30, 2010).2.Mile-Stone No. 24 (filling of reservoir by October 01, 2010 ).
The Contractor could not achieve the desired targets. Remaining works are now scheduled to be completed by end March 2012.
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OVERALL FINANCIAL AND PHYSICAL PROGRESSContract no. Planned Progress
(%age)Actual Progress
(%age)
Physical Progress
KC-01 100 99.75KE-04 (E&M) 100 99.7 Cost Per Unit = 2.28 US Cents.Total Generation Since November, 2010Unit # 1 = 92.711 GW-HrsUnit # 2 = 108.464 GW-HrsAuxiliary = 0.045 GW-HrsTotal Generation upto December 25, 2011 = 201.220 GW-Hrs
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THANK YOU