PLANNING AND DESIGN OF MINOR IRRIGATION TANK ACROSS KAMPINEELA VANKA,NEAR KOTHA VEPAKUPPAM VILLAGE,

RAMACHANDRAPURAM MANDAL, CHITTOOR DISTRICT, ANDHRAPRADESH.

BYM.DHANRAJ(106204)

K.GIRISHKUMAR(106206) B.MADHULATHA(106209)

LIST OF CONTENTS

5

INTRODUCTION1

2

3

4

RESERVOIR PLANNING

GEOTECHNICAL INVESTIGATIONS

ESTIMATION AND COSTING

DESIGN OF EARTHEN EMBANKMENT

IRRIGATION

Irrigation is the process of supplying of water to land by artificial means for the purpose of cultivation.

CLASSIFICATION OF PROJECT

Major irrigation project Above 10000ha

Medium irrigation project Between 2000 to 10000ha

Minor irrigation project Below 2000ha

LOCATION

Kampineela vanka,near Kotha Vepakuppam village,Ramachandrapuram mandal, Chittoor district, Andhra Pradesh.

PURPOSE AND SCOPE OF PROJECT

This minor irrigation tank is proposed to meet the demands of farmers and to use the available resources efficiently.

INVESTIGATIONS FOR RESERVOIR PLANNING

ENGINEERINGSURVEY

GEOLOGICAL

CONTOUR

MAPS

HYDROLOGICAL

GEOTECHNICAL

INVESTIGATIONS

INVESTIGATIONS

1

Catchments areaCatchments area

Free catchments Free catchments ==2.098sqkm2.098sqkm

• Intercepted catchments Intercepted catchments = = NilNil

• Nature of catchments Nature of catchments = = GoodGood

2

• Quantity of water available Quantity of water available in the riverin the river• Dependable flows Dependable flows • Storage capacity of River Storage capacity of River and its levels and its levelsCollection of data Collection of data HYDROLOGICHYDROLOGIC CROP DETAILSCROP DETAILSComputation of runoffComputation of runoff

3

Casing soil

Hearting Soil

Foundation soil.

ENGINEERINGSURVEY HYDROLOGICAL GEOTECHNICAL

CATCHMENT AREA MAP

CONTOUR MAP

Yield Of The River

From the computed runoff 75% dependable yield of the basin is From the computed runoff 75% dependable yield of the basin is determined determined From flow duration curveFrom flow duration curve75%dependable yield of the 75%dependable yield of the basin=0.315M.cumbasin=0.315M.cum

Computation Of DemandComputation Of Demand

Crop water requirements in both Kharif and Rabi Crop water requirements in both Kharif and Rabi seasons are seasons are computed by Modified Penman method. computed by Modified Penman method.

Monthly potential evapotranspiration at Arogyavaran metrological Monthly potential evapotranspiration at Arogyavaran metrological station are used forcomputing the irrigation demand.station are used forcomputing the irrigation demand.

FLOW DURATION CURVE

COMPUTATIONAL PROCEDURE

COMPUTATIONAL PROCEDURE

Consumptive Irrigation Requirement (CIR) =ET

Net irrigation Requirement (NIR) =CIR-Re

Field Irrigation Requierment (FIR) = NIR/ηa

Gross Irrigation Requierment (GIR) = FIR/ηc

where , ηa = Application Effciency and ηc = Conveyance Efficiency

Demand in Kharif season = 0.1536M.cum

Demand in Rabi season = 0.0908M.cum

Total demand = 0.2444M.cum/year

RAINFALL CURVE -SEPTEMBER

RAINFALL CURVE -AUGUST

RAINFALL CURVE -OCTOBER

RAINFALLCURVE -DECEMBER

CROP WATER REQUIREMENTS

Crop : Groundnut Field efficiency :80%Period :120days Conveyance efficiency : 85%Ayacut : 80 hectaresSeason : Karif

MODIFIED PENMAN

Crop : Hybrid sajja Field efficiency :80%Period :90days Conveyance efficiency : 85%Ayacut : 80 hectaresSeason : Rabi

FLOW MASS CURVE

STORAGE CAPACITY AT DIFFERENT WATER SURFACE ELEVATION

STORAGE CAPACITY

GEOTECHNICAL INVESTIGATIONS

  Liquid limit and plastic limit Sieve analysis

Proctors compaction

Permeability

Triaxial compression

LIQUID LIMIT TEST

HEARTING SOIL

FOUNDATION SOIL

  SIEVE ANALYSIS

                  

Coefficient of Uniformity Cu = 6.67 Coefficient of Curvature Cc = 1.1 Since Cu > 6 and Cc lies between 1 and 3, SW – Well graded Sand.

SOIL CLASSIFICATION

FOUNDATION SOIL

STANDARD PROCTOR’S COMPACTION TEST

HEARTING SOIL

FOUNDATION SOIL

            TRIAXIAL COMPRESSION TEST

  

HEARTING SOIL

FOUNDATION SOIL

Design of preliminary section

Seepage analysis

  Introduction

  Determination of seepage flow net

  Computation of seepage

Stability analysis

  Introduction

  Computations for stability analysis

SEEPAGE ANALYSIS

STABILITY ANALYSIS

SURPLUS WEIR

TANK SLUICE WITH TOWER HEAD

ESTIMATION

11DETAILED AND ABSTRACT ESTIMATE OF EARTHEN BUND

22DETAILED AND ABSTRACT ESTIMATE OF SURPLUS WEIR

33. DETAILED AND ABSTRACT ESTIMATE OF TANK SLUICE WITH A TOWER HEAD

S.No Quantity Description of work Rate Per Amount (Rs)

1 LSClearing light jungle along the bund, etc

6000

2 11940Earthwork excavationFor stripping soils 33.35 Cum 397005

3 1350Earthwork excavation for toe wall and toe drain 45.13 Cum 60926

4 1690 Earthwork excavation for cutoff 45.13 Cum 76270

5 4260Earthwork excavation for hearting soils

182.20 cum 776172

6 608Rough stone dry packing for revetment300mm thick 501.30 Cum 304791

7 558Gravel backing underRevetment 0.30m thick 289.15 Cum 617046

8 53Spreading gravel on top of bund 150mm thick 199.48 Cum 10573

9 1444Laying horizontal and vertical sand filters

210.20 Cum 303529

10 34300mm thick graded metal 25mm to 50mm size 601.40 Cum 20448

11 259 Rock toe using 225mm tick 390.40 Cum 101114

12 89 225mm thick rough stone for toe drain 478.15 Cum 42556

13 LSProvision for bailing out water in excavation of cut off, etc 10000

14 LSProvision for removal of surface boulders,etc 10000

15 LS Provision for forming ramps 10000

16 LS Provision for rounding off 2603Total 2743033

ABSTRACT ESTIMATE OF EARTHEN BUND

S no QuantityDescription of work

Rate PerAmount

(Rs)

1 268cum

Earthwork excavation in all soils by machine and depositing spoil within 5m radius for foundations

16.70 Cum 4475.60

2 156cum

Laying CC(1:6:10) mix using 40mm size HBG metal for foundations

1414.20

Cum 220615.2

3 7.92cum

Laying wearing coat with CC(1:2:4) mix using using 20mm size HBG metal for body wall

2371.80

Cum 187846.656

4 202cumConstruction of RR masonry in CM(1:5)

1284.50

Cum 259469

5 14.62cum

Laying CC(1:3:6) mix using 50% of 20 mm HBG metal for body wall

2345.00

Cum 34283.9

6 189.1sqm

Plastering the exposed faces of RR masonary in CM(1:4) mix 20mm thick

1040.00

Sqm 196664

7 115cum

Rough stone dry packing for apron using 0.30m thick stone

498.40

Sqm 57316

Total 960671

ABSTRACT ESTIMATE OF SURPLUS WEIR

S no

QuantityDescription of work Rate Per Amount(RS)

1 80.478

Earthwork excavation in all soils by machine and depositing spoil within 5m radius for foundations

16.70 1cum 1344

2 80.478

Laying CC(1:6:10) mix using 40 mm size HBG metal for foundations

1414.20

1cum 113812

3 9.98

Laying CC(1:3:6) mix using 50% of 20mm HBG metal

2345.00

1cum 23403

4 93.57Construction of RR masonry in CM(1:5)

1284.50

1cum 120191

5 170.08

Plastering the exposed faces of RR masonry in CM (1:4) mix 20mm thick

1040.00

1sqm 176884

6 -LS-Provision towards bank connections 25000

7 -LS-

Provision for arranging plug and arrangements

15000

Total 475634

ABSTRACT ESTIMATE OF TANK SLUICE WITH A TOWER HEAD

Estimated cost of the earthen bund = Rs. 2743033

Estimated cost of surplus weir = Rs. 960671

Estimated cost of tank sluice with a tower head = Rs. 475634

Total cost of the project = Rs. 4179338

ESTIMATED COST OF THE PROJECT

CONCLUSIONS

IT IS PROVOKED THAT IRRIGATION PROJECTS ARE ASCERTAINED. THESE ARE HIGHLY VALUED PROJECTS , AND SPECIAL ATTRIBUTE KEEN INTEREST TAKEN BY GOVERNMENT IN CONVEYING WATER TO VILLAGES.

ATTRITUBE TO THIS , IRRIGATION PROJECTS ARE TIME DEPENDENT AND LESS FEASILBLE ECONOMICAL PROJECT , WE HAVE TO WORK UNDER VARIOUS PRESSURES.

REGRADELESS OF THE EFFORTS AND AMBIGUITIES TAKEN IN DOING THIS PROJECT, WE HAD THE PRIVILEGE OF DETAIL LEARNING AND EXPOSURE TO FIELD CONDITION.

ACKNOWLEDGEMENT

WE ARE THANKFUL TO TIRUPATI IRRIGATION DEPARTMENT , WHO HAVE GIVEN EMANCE INFORMATION IN PUT THIS PROJECT FORWARD

WE ARE DELIGHTED TO THANK PROF P.MALLIKARUJAN . WHO SPARED HIS VALUABLE GUIDELINES AND SPARED THIS VALUABLE TIME.

LAST BUT NOT LEAST , WE ARE EXTREMLY HUMBLEMED TO EXPRESS OUR THANKS TO PROF ARUNA JOYTHI , WHO HELPED US IN ALL THE DIFFICULTS WHICH TEASED US WHILE EXCUTING THIS PROJECT