Presentation on Movement of Project Cargo for Dibang Multipurpose Project (3000MW) Arunachal Pradesh
Salient Features
Location : State : Arunachal Pradesh District : Lower Dibang Valley & Dibang Valley River : Dibang Dam Site : 1.5 km u/s from the confluence of Ashu Pani & Dibang rivers.
Hydrology: Catchment area : 11276 Sq. km Average annual rainfall : 4405 mm Maxm. Temperature : 45 ⁰ C Minm. Temperature : 02 ⁰ C Salient Features cont...
Reservoir :- Maximum Water level (MWL): EL. 548 m Full Reservoir Level (FRL) : EL. 545 m Min. Draw Down Level(MDDL) : EL. 490 m Gross storage : At MWL : 3850.3 mCum At FRL : 3748.21 mCum At MDDL : 1983.89 mCum Area under submergence at FRL : 40.09 Sq.Km Length of Reservoir : 43 Kms. Dam :- Type : Concrete Gravity Dam Height : 288 m Length at Dam Top : 816.3 m Diversion Tunnel:- Number : 5 Size : 12.0 m (finished dia). Shape : Horse Shoe Length : 1175 m to 1325 m Diversion Capacity : 8680 Cum Height of U/S RCC Coffer Dam : 25.0 m (Above RBL) Height of D/S Coffer Dam : 7.0 m (Above RBL) Salient Features cont...
Construction Sluice: Number : 6 Size(W x H) : 4 m x 5 m Crest Level : EL. 300 m Spillway : Design Flood : 19000 Cumecs Type : Orifice No. & Size of Spillway : 7 Nos of (6 m X 8 m) at lower level & 4 Nos of 9 m x 12 m) at upper level Head Race Tunnel Intake : Number : 6 Nos Size : 8 m X 9 m Type : Inclined type Trash Rack Head Race Tunnel : Number : 6 Nos Diameter : 9 M Type : Horse shoe shaped Length : 300 m to 600 m Design discharge : 237.80 Cumecs Salient Features cont...
Pressure Shaft : Number : 6 Nos Diameter : 7.5 M Shape : Circular shaped Height : 184.8 M
MIV Cavern: Size : 15 m(W) x 23.5 m(H) x277.8 m(L) MIV Diameter : 4.75 m
Power House Cavern: Type : Underground Nos of Unit : 12 Nos of 250 MW(Francis turbines) Rated net head : 233 M Size(WxHxL) : 24.5 M x 54.8 M x 356.8 M Salient Features cont...
Draft Tube Gate cum Transformer Cavern: Size (W x H x L) : 17 m x 20.5 m x 295.8 m. Draft Tube Gate Size : 2 Nos each of 4.5 m x 7.1 m with central pier of 2.0 m. Tail Race Tunnel : Number : 6 Shape : Horse Shoe Shaped Diameter : 9.0 M Design Discharge : 237.80 Cumec
Pot Head Yard and GIS : Size : 300 M x 100 M Elevation : EL. 310.0 M.
Access Tunnel and Adits : Size : 9.0 m /6.5 m Dia. Shape : D-Shaped Length : 3200 m Salient Features cont...
Power Generation :
Annual Energy Generation in 90 % Dependable year : With rule Curve : 12270 MU Without rule Curve : 13194 MU
Annual Energy Generation in 50 % Dependable year : With rule Curve : 13904 MU Without rule Curve : 14925 MU
Project Cost ( at 2007 Price Level) :
Total Project Cost excluding External Roads & bridges : Rs. 15886.39 Crs
Cost of Generation at Bus bar per unit ( including 12% State share & 14% return on equity) :
Without cost of External Road & Bridges :Rs. 3.10 per Unit (1st year tariff). Rs. 2.60 per unit (levellised tariff) REQUIREMENT OF CEMENT & STEEL
YEAR CEMENT( MT) NO. OF BAGS STEEL (MT)
1st Year 0.00 00 0.00 2nd Year 24420.00 488400 1465.00 3rd Year 56100.00 1122000 3366.00 4th Year 62119.20 1242384 3727.00 5th Year 465526.00 9310520 27932.00 6th Year 1026839.00 20536780 61610.00 7th Year 950419.80 19008396 57025.00 8th Year 955141.00 19102820 57308.00 9th Year 444936.80 8898736 26696.00 TOTAL 3985502.40 79710036 239129.00 CONSTRUCTION SCHEDULE FOR CONCRETING:
-The average rate of concreting is taken as 1137 cum/hr (DPR) with monthly progress 5.68 lacs cum.
-Peak rate of concrete placement to sustain the average rate referred above, will be around 1700 cum/hr.
-The detail of concrete placement rate (DPR) is given in table below:
Month Effective Concrete Concrete placing rate working quantity
Monthly Daily Hourly
52-61 4.5 2280'000 506'667 20'267 1'013
52-85 19 108000'000 568'421 22'737 1'137
86-95 7.5 17000'000 226'667 9'067 453
96-102 7 1320'000 188'571 7'543 377
Total 38 16'100'000 ODC OF E&M EQUIPMENTS
Sl. Description Max. Dimensions Wight (MT)/ No. Unit
1 MIV-Latice type plug 9500(L) X 7200(D) X 2500(W) 130.50
2 Runner 6022(D) X 3615(H) 110.00
3 GSU Transformer 4039(W2)X5470(H)X4890(W1) 100.0
4 Power Transformer 9300(W1)X5500(W2)X4309(H) 125.00
5 Turbine Shaft 5500(L)X2500(D1)X2500(D2) 64.00
6 Generator Lower Shaft 5500(L)X2500(D1)x2500(D2) 62.30
7 Generator Upper Shaft 2300(L)X2500(D1)X1500(D2) 12.70
8 Stay Ring Part-1/2 7200(L)X2400(H)X3000(W) 70.00 ODC OF E&M EQUIPMENTS cont…
Sl. Description Max. Dimensions Wight (MT)/ No. Unit
9 Stay Ring Part-2/2 6200(L)X2400(H)X3000(W) 51.63
10 Draft Tube Elbow (Liner) Part-! 3958(H)X4845(W1)X8660(D) 10.13
11 Draft Tube Cone (Upper Part) 7240(D)X3620(W)X3380(H) 14.50
12 Draft Tube Cone (Lower Part) 8220(D)X4110(H)X4110(W) 26.00
13 Sartor frame 4254(H)X6885(W1)X6885(W2) 15.75
14 Turbine Head Cover 7700(D)x3850(W)X1422(H) 15.40
15 Turbine Bottom Ring 3850(W)X7700(D)X1500(H) 20.03
16 Turbine Operating Ring 5940(D)X1018(H) 16.40 ROAD COMMUNICATION NETWORK ROAD COMMUNICATION NETWORK
Alternative – I Guwahati-Tinsukia-Dangri-Dholla-Sadiya-Shantipur-Roing-Project Site(637 Kms)
Alternative - II Guwahati-Dangari-Rupai-Parasuram Kund-Tezu-Paya-Koronu-Roing-Project site (800 Kms)
Alternative – III Guwahati-Tezpur-NLP-Gogamukh-Akajan-Jonai-Pasighat-Mebo-Dambuk-Project Site(710 Kms) Guwahati-Tinsukia-Dangari-Dholla-Sadiya-Roing-Bomjir-Dambuk ROAD COMMUNICATION NETWORK
Alternative-IV: Guwahati-Tinsukia-Saikhowa / Dholla Ghat-Paglam-Dambuk
Alternative-V: Guwahati-Dibrugarh-Bogibeel Bridge-Akajan-Pasighat-Mebo-Dambuk
Alternative-VI: Guwahati-Tinsukia-Dangari-Dholla-Sadiya-Roing-Chidu-Nizam Ghat- Project site
Alternative-VII: Guwahati-Tinsukia-Dangari-Dholla-Sadiya-Roing-Bomjir-Dambuk 11 INLAND WATERWAY COMMUNICATION NETWORK INLAND WATERWAY COMMUNICATION NETWORK
Kolkata-Sadiya via Bangladesh (Waterways, 2110 Kms)-Shantipur-Roing Project site Kolkata-Bangladesh-Nemati (NW-2) : 2.0 M water depth is vailable for 330 days a year.
Nemati to Dibrugarh : 2.0 M water depth is available for 220 days a year.
Dibrugarh to Sadiya : Navigation facility would be improved by IWAI , as it is not developed till date.
Sadiya-Shantipur-Roing-Project site : Improvement of existing road bridges and construction of new road up to project site are required. INLAND WATERWAY COMMUNICATION NETWORK INLAND WATERWAY COMMUNICATION NETWORK
Kolkata-Sadiya via Bangladesh INLAND WATERWAY COMMUNICATION NETWORK
DMP Project Site Nation Waterway-2
River Distance B. Border(Dhubri)-Guwahati- 260 km Guwahati-Dibrugarh - 508 km Dibrugarh- Sadiya - 023 km INLAND WATERWAY COMMUNICATION NETWORK
Improvements required :
: Improvements of National Waterway-2 from Kolkata to Sadiya
: Construction of two nos. jetties one each on Dholla and Sadiya Ghat with Loading / Unloading arrangements.
: Deployment of two nos. Hover barge/Hovercraft for transportation of materials from Dholla to Sadiya or Vice-versa. Thanking you