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Polavaram Irrigation Project

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Presentation on theme: "Polavaram Irrigation Project"— Presentation transcript:

1 Polavaram Irrigation Project
Progress during the period 12th Mar – 18th Mar 2018 Water Resources Department #54 Virtual Review of Polavaram Project by Hon’ble Chief Minister Dt.19 March 2018 Polavaram Irrigation Project

2 Main Components Of Dam Works
Project status Description Completed Overall 54.4% Right main canal 91.0% Left main canal 59.6% Head works 41.2% Head works – Main dam Excavation for spillway & spill channel : lakh cum completed out of total lakh Cum (70%) Concreting for spillway & St. Basin: 4.14 lakh cum (excluding 1.65 L Cum of crevices filling) completed out of lakh Cum (25.30%) D’wall concreting done for Rm out of 1427 Rm (73.6%) Fabrication of Radial Gates completed for 10,450MT out of MT (58%) Jet Grouting for d/s Coffer dam completed for 1098m out of 1417m (78%) Jet Grouting for U/s Coffer dam completed for 525 m out of 2050 m (25.6%) PIP– Main Canals RMC : Excavation completed for total length of Km (100%), Lining completed for KM out of Km (82%). Structures 182 completed. LMC : Excavation completed for Km out of Km (78%), Lining completed for KM out of M (59%). Structures 137 Completed. Main Components Of Dam Works Completed Spillway & Spill channel excavation & PH excavation(total Earthwork) 70% Spillway & Spill channel (total concrete) 11.80% Diaphragm wall construction. 73.6% Radial Gates fabrication 58%

3 CONSTRUCTION PROGRAMME OF DAM PACKAGE
As on Dt. 19 March 2018

4 This week’s Progress in Nutshell (12th March. to 18th March)
S.NO DESCRIPTION Total Qty Completed As on 18th Mar This Month progress ( March,18) Previous Week THIS WEEK BALANCE 1 Earthwork Excavation L cum 782.81 5.37 1.26 4.01 332.78 2 Concrete Spillway & Stilling Basin 16.39 4.14 0.45 0.17 0.21 12.25 3 Trunion Casting Nos 96 74 22 4 Arm Girders Fabrication 384 - Nil 5 Horizontal Girders 192 6 Thrust Blocks 7 Trunion Pins 52 44 8 Trunion Brackets 15 42 9 Diaphragm wall m 1427 1049.6 42.8 18.8 19.2 377.4 10 Jet Grouting (D/s) 1417 1098 319 11 Jet Grouting (U/s) 2050 525 409.5 156 171 1525

5 PERCENTAGE COMPLETION
Excavation Status PERCENTAGE COMPLETION Left flank Target Date Jun’ 2018 Balance Qty L Cum Total Qty 131 L Cum Total Qty 161 L Cum Balance Qty Nil Total Qty 448 L Cum Balance Qty 63 L Cum 902 Hill Godavari River U/S Coffer dam D/S Coffer dam ECRF dam Total Qty 50 L Cum Balance Qty 31 L Cum Approach Channel Spill Channel Pilot Channel Spillway Total Qty 124 L Cum Balance Qty 29 L Cum River diversion 26% Target Date Jun’ 2018 Total Qty 163 L Cum Balance Qty 70 L Cum Target Date Jun’ 2018 Total Qty 163 L Cum Balance Qty 70 L Cum Qtty for CC Blocks &Embkt: L cum Component Target completion date 902 Hill Bal Spill ch. App. Ch. Pilot Ch. Total Qty Completed Balance L cum L Cum L Cum Legend Completed Critical Non critical

6 Earthwork - Progress Achieved (Period 12th – 18th Mar’18)
Item Total Involved Qtty. Executed Qtty. Balance Quantity as on 12th Mar - 18th Mar'18 Target from 12th Mar – 18th Mar '18 Progress achieved from 12th Mar - 18th Mar'18 Short fall Balance Qty as on 19th Mar 2018 Spill Channel 902 Hill 163 92.86 70.14 0.44 2.36 69.70 Balance 448 381.51 66.49 3.57 -- 62.92 CC Blocks 30.8 30.80 - Embankment 7.79 Total 649.59 474.37 175.22 4.01 171.21 Pilot Channel 50 19.24 30.76 Spillway 161 Left Flank 124 94.67 29.33 1.40 Total ( Navayuga) 984.59 749.28 235.31 3.76 231.30 Approach Ch. (TTY) 131 29.52 101.48 2.38 Grand total 778.80 336.79 6.14 332.78 *Total Quantity involved including excavation for CC Blocks, Filters, Qtty for Embkt., etc

7 Revised Programme of Earthwork Excavation
Item Bal Qty. ( L cum) Apr-17 May-17 Jun-17 Jul-17 Aug-17 Sep-17 Oct-17 Nov-17 Dec-17 Jan-18 Feb-18 Mar-18 Apr-18 May-18 Jun-18 Jul-18 Aug-18 Sep-18 Oct-18 Nov-18 Dec-18 Spill Channel 902 Hill 69.70 Qty. Executed so far L Cum   0.42 L cum/day Balance 62.92 Qty. Executed so far L Cum   0.38 L cum/day CC Blocks 30.80 0.11 L cum/day Embankment 7.79 0.05 L cum/day Pilot Channel 30.76 Qty. Executed so far L Cum   0.12 L cum/day Left Flank 29.33 Qty. Executed so far L Cum   0.22 L cum/day TOTAL 231.30 1.02 1.25 1.08 0.28 Approach Channel 101.48 Qty. Executed so far L Cum   0.35 L cum/day 332.78 1.37 1.60 1.43 0.63

8 Details of Concrete Works
Revised Dt. 19 March 2018 Name of the Component Total Quantity involved (L.Cum) Executed by M/s Transstroy (L.Cum) Executed by M/s Navayuga Total Executed Balance Quantity Remarks Spill Way (Body wall) 11.95 2.43 0.53 2.96 8.99 41 Blocks tackled out of 53 Stilling Basin (including Divide wall, Training wall, Fish ladder & Apron) 4.44 0.91 0.27 1.18 3.26 Total blocks (21.5 x 21.5m): 245 nos. 101 nos completed Sub-total 16.39 3.34 0.80 4.14 12.25 Spill channel ( CC Blocks) 18.75 Design of CC Blocks to be approved. Grand Total 35.14 31.00 Undulations/ Crevices filled up 1.65 -

9 Stilling Basin Physical Status of Spill Way & Stilling Basin Concrete
Component Total Qty. Executed Balance Spillway 11.95L cum (*1.37) L cum 8.99 L cum Stilling Basin 4.44 L cum * L cum 3.26 L cum Total 16.39 L cum L cum 12.25 L cum Stilling Basin Completed(101) Planned/progress (19) * Crevices/undulations

10 Progress for the period : 21383 cum
This Month(Mar,2018)Cumulative : cum Cumulative in Feb‘18 : 40,077 cum Cumulative in Jan‘18 : 25,500 cum Cumulative in Dec ‘17 : 55,685 cum Cumulative in Nov : 44,651 cum Cumulative in Oct : 57,156 cum Cumulative in Sep : 60,950 cum Cumulative in Aug : 64,559 cum Cumulative in July : 78,860 cum Cumulative in June : 33,529 cum Cumulative in May : 30,063 cum Cumulative in Apr : 19,754 cum Cumulative in Mar : 17,832 cum Cumulative in Feb : 3,118 cum Cumulative in Jan‘17 : 2,076 cum Cumulative in Dec’ : cum Total spillway qtty. : L Cum Total Executed : *1.65 L Cum Balance : L Cum * Crevices/undulations

11 SPILLWAY CONCRETE PROGRAMME/PROGRESS BY NAVYUGA
REVISED PROPOSALS AS PER M/S NEC SPILLWAY CONCRETE PROGRAMME/PROGRESS BY NAVYUGA

12 SPILLCHANNEL CONCRETE PROGRAMME

13 Qtty. Achieved during the period Total Executed Qtty. So far
Progress of Diaphragm Wall during the period 12th Mar – 18th Mar 2018 ch.58m to m S.No Item Total Quantity Executed Balance as on 12th Mar’ 18 Target for the period Qtty. Achieved during the period Short fall Total Executed Qtty. So far Qty. 12th Mar – 18th Mar’18 ( as on 18th Mar’18) 1 Trenching in soils (Sqm) 65,130 43,553 21,577 1300 1360 -- 44,913 2 Trenching in Rock Cut (Sqm) 2,982 2,038 944 40 44 2,082 3 Completed D’wall length (m) 1427 1,030.4 396.6 20 19.2 0.8 1,049.6 Total no. of Panels : 400 , Completed : 275 Nos.

14 CONSTRUCTION SCHEDULING FOR THE WORK OF ECRF DAM AND COFFER DAMS
S.NO Task Name Duration Start Finish 2018 2019 Mar Apr May Jun July Aug Sep Oct Nov Dec Jan Feb SCHEDULE FOR ECRF Dam & COFFER DAMS 670 days Mar-18 Dec-19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 U/s & D/s Cofferdam 365 days Mar-19 i Submission of Design and drawings 0 days Feb-18 ii Approval of Design & drawings by CWC 91 days May-18 3 Months iii Formation of D/s Cutoff ( in river portion) 60 days Jun-18 2 Months  iv Formation of U/s Cutoff 121 days 4 months  v Formation of U/s Cofferdam 181 days Oct-18 6 months  vi Formation of D/s Cofferdam 122 days Jan-19 Gap-II ( ECRF Dam) Apr-18 2 months  Jul-18 a. Diaphgram wall ( Balance work) 3 months  b. Vibro Compaction 274 days Dec-18 2 months c. Vibro stone column d. Formation of hearting & rock fill embankment 456 days 15 months VII e. Finishing works Sep-19 4 months

15 Schematic Diagram of Hydraulic Gates

16 Programme & Progress - Gate Leaf
Elevation: M S.No Description of Item Total quantity required Executed quantity as on 11thMar Programme for this week Achieved for this week Shortfall Balance as on 19th Mar’18 Remarks 1 Skin plate assemblies 48 sets - Completed 2 Side guide assemblies After Embedded parts fixed in concrete 3 Seal assembly with SS bolts 4 Horizontal girders 192 Nos 5 Arms girders 384 Nos 6 Horizontal girder bracings Steel awaited 7 Trunnion (48 L + 48 R) 96 Nos 73 Nos 22 8 Trunnion Pins 51 Nos 44 9 Self lubricating Bushes 16 Nos 80 To be imported from Japan Brackets (48 L + 48 R) 48 Nos 42 10 Sub Assemblies : 48L + 48R Arm assembly with trunnion 57 Nos 38 Bush fitting with trunnion Trunnion with bush pin & bracket assembly 2 Nos 93

17 Hydraulic Hoist River Sluice Gates
Elevation: M S.No. Description of Item Total quantity required Executed/ Received quantity Programme for this week Achieved for this week Balance Remarks 1 Receipt of hydraulic cylinders from Germany 96 No - Drawings under finalization at CWC Spillway Stop log Gates Elevation: M S.No Description of Item Total quantity required Executed/ Received quantity Programme for this week Achieved for this week Balance Remarks 1 Embedded parts 48 vents - Design pending at CWC 2 Stoplog elements 5 sets River Sluice Gates Elevation: M S.No Description of Item Total quantity required Executed/ Received quantity Programme for this week Achieved for this week Balance Remarks 1 Embedded parts 10 sets - Steel to be obtained for Liners by Agency. 2 Gate leaf 10 sets Drawings to be approved by CWC. 3 Hydraulic hoist Drawings to be approved by CWC

18 Progress of Jet Grouting during the period (12th Mar – 18th Mar’18)
S.No Item Total Quantity Executed Qty. Balance as on 12th Mar 2018 Target for the period Qtty. Achieved during the period Short fall Total Executed Qtty. So far ( as on 18th Mar 2018) Jet Grouting for Down stream Coffer Dam 1. Jet Grouting Columns ( No) 945 733 212 -- 2. Length of Jet Grouting (Rmt) 1417m 1098 **319 Jet Grouting for Upstream Coffer Dam 1367 236 1131 120 114 6 350 2050 m 354 *1696 180 171 9 525 * 400m of River lean flow width is involved ** will be taken up after River diversion during March 2018.

19 Status of Designs Item Total involved Approved by CWC
Designs Pending At Yet to be submitted by Agency Agency WRD CWC Total SpillWay 18 7 4 3 ECRF Dam 17 2 11 Hydraulic Gates 5 1 total 42 14 8 19 9

20 DETAILS OF DESIGNS – PENDING STAGE
SL NO DESCRIPTION PENDING AT 1 DIVIDE WALL CWC 2 NOF AGENCY 3 FISH PASS 4 TRAINING WALL 5 DEEPER STILLING BASIN 6 TRUNNION BEAM ANCHORAGE SYSTEM 7 GENERAL ARRANGEMENT ECRF DAM AND SPILL CHANNEL PENDING DRAWINGS SLOPE STABILITY OF ABUTMENT HILLOCKS DESIGN OF GAP 1 EARTHEN DAM DESIGN OF GAP 3 DAM ALIGNMENT OF SPILL CHANNEL HYDRAULIC DESIGN OF SPILL CHANNEL HYDRAULIC DESIGN OF APPROACH CHANNEL HYDRAULIC DESIGN OF PILOT CHANNEL 8 DESIGN OF U/S COFFER DAM 9 DESIGN OF D/S COFFER DAM 10 DESIGN OF STONE COLUMN 11 DESIGN OF SPILL CHANNEL BRIDGE IIT- DELHI GATES PENDING DRAWINGS HYDRAULIC HOIST

21 DRAWING TO BE SUBMITTED BY AGENCY
Contd.. DETAILS OF DESIGNS – PENDING STAGE DRAWING TO BE SUBMITTED BY AGENCY SPILLWAY DRAWING TO BE SUBMITTED 1 SLOPED BODY WALL AGENCY 2 KEY BLOCK 3 ABUTMENT BLOCK 4 SPILLWAY BRIDGE ECRF DAM AND SPILL CHANNEL DRAWING TO BE SUBMITTED DESIGN OF ECRF DAM DESIGN OF CC BLOCK SPILL CHANNEL DESIGN OF PROTECTION WORKS DESIGN OF SPILL CHANNEL EMBANKMENT GATES DRAWING TO BE SUBMITTED GANTRY CRANE

22 Works to be completed for Flood Diversion through Spillway
Reservoir Storage level Main items to be Completed Total Amount Expenditure Incurred Amount Required for completion +41.15m Spillway 988.79 298.20 690.59 Radial Gates 456.37 69.03 387.34 Spill Channel 805.94 Approach Channel 240.51 83.96 156.55 Pilot Channel 45.59 10.11 35.48 U/s and D/s Coffer Dams 211.62 --- Protection works 28.04 Gap III 1.57 Gap I 47.42 Spill channel bridge 46.07 Diaphragm wall 462.20 264.29 197.91 LA&RR Total

23 Polavaram Irrigation Project – Reimbursement Details
Rs. in Crores Total Expenditure incurred up to February,2018 Expenditure incurred after declaration as National Project up to February,2018 Amount Reimbursed to the GOAP till date Amount to be Reimbursed

24 LA and R&R Status (L.A, Submergence, Land to Land and Housing)
For EL m (FRL) COMPONENT TOTAL INVOLVED COMPLETED BALANCE Physical Financial (Rs. In Crs) LA R&R 98818 3348 212.55 95470 TOTAL

25 LA and R&R Status (L.A, Submergence, Land to Land and Housing)
For EL m COMPONENT TOTAL INVOLVED COMPLETED BALANCE Physical Financial (Rs. In Crs) W.G District L.A (In Acres) R&R (No. of PDFs) 12449 2584 160.00 9865 TOTAL E.G District 413.00 267.00 190.00 145.00 8104 764 52.55 7340 319.55 Grand Total

26 Quality Control tests Conducted during 12th Mar – 18th Mar’18
Sno Component Name of the Test No. of Tests to be Conducted as per BIS Code No. of Tests Conducted during the period Remarks A SPILLWAY 1 Tests on Cement Fineness 3 All the tests conducted during this week satisfied the standards. Consistency tests IST and FST Compressive Strength 4 2 Tests on Fine Aggregate Fineness Modulus 7 Silt Content Tests on Coarse Aggregate Gradation 21 Crushing value Flakiness & Elongation Los Angles Abrasion Value 14 Aggregate Impact Value

27 Quality Control tests Conducted during 12th Mar – 18th Mar’18
Sno Component Name of the Test No. of Tests to be Conducted as per BIS Code No. of Tests actually Conducted Remarks 4 Tests on Steel Tensile strength - Tests completed as per standards Yield Sterength Elongation 5 Concrete Cubes Compressive Strength 286 All the tests conducted during this week satisfied the standards. B Jet Grouting 1 Bentonite Density 7 8 Viscosity 2 Neat Grout 200 230 Bleed 28 30

28 Quality Control tests Conducted during 12th Mar – 18th Mar’18
Sno Component Name of the Test No. of Tests to be Conducted as per BIS Code No. of Tests actually Conducted Remarks 3 Spoil Return Density 48 60 All the tests conducted during this week satisfied the standards. Bleed 4 UCS Stress 5 Permeability Flow  30 C Diaphragm wall 1 Aggregate Grain Size 16 26 143 146 CCS 14 18

29 THANK YOU


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