|
|
 |
|
|
|
|
| Details of the Project: |
| |
| Location: |
Kullu Dist, Himachal Pradesh |
| River: |
Malana Nallah |
| Project Type: |
R&R, Peak Load Plant |
| Dam: |
Concrete Gravity Dam with 158.5 m long and about 53 m high with 2 No.s breast wall type Spillway of size 4m X 5m |
| Head Race Tunnel: |
2.9 m D-shaped, 4.95 km long |
| Surge Shaft: |
6 m dia and 87 m high |
| Power House: |
67.5 m long, 18 m wide and 31 m height, Underground |
| Transformer cavern: |
28 m long, 12 m wide |
| E&M Equipment: |
Two number, 4 jet, Vertical Shaft Pelton Turbines |
|
|
Status of the Project:
Project access Roads and Bridges has been completed and the ropeways have been completed for transportation of equipments & construction materials to various work fronts. 5 ton carrying capacity ropeway has been converted to 30 T/Hr Mono – Cable for transportation of materials like Aggregate, Sand, Cement & fly ash. Two 6 ton carrying capacity ropeways were constructed for transportation of steel ferrules & construction materials to Pressure shaft, surge shaft & HRT face – 6.
Project main civil works and Power House civil works has been completed and Electro-Mechanical equipments erection also completed. Dam Excavation and concreting completed and miscellaneous works like parapet walls etc is in final stage. Head Race Tunnel, Pressure Shaft and Surge shaft including steel liner erection completed in all respects. Adits plugging and Tunnel cleaning is in progress.
Detailed Progress of the Project components as follows:
|
|
Concrete Gravity Dam:
Dam body excavation completed and more than 88756 cum of concreting completed out of 89380 cum. An innovative method is adopted to anchor the dam body in to rock surface by constructing the 62 m long drift and Key wall in the overburden material.
|
 |
|
.jpg)
|
Drift & Key Wall:
62 m long drift in the overburden left back area of dam exacavation works started in two stages,vertical pits excavation and horizontal sequence of drifts excavation from top to bottom completed and rock clearing also completed. Concreting of about 3000 cim pouring from bottom most drift to top completed in three streches. Concreting completed upto required EL 2542.0
|
|
Head Race Tunnel (HRT) :
Head Race Tunnel excavation 4.987m has been taken up from 5 faces. Excavation of HRT face-3 & 4 took some more time due to bad rock strata, two times face-3 was detoured due to shear zones encountered. Excavation and concreting of entire HRT in all faces-2, 3, 4, 5, 6 & 7 completed.
|
 |
 |
Surge Shaft
87 m high and 6 m diameter Surge Shaft has been constructed at the end of Head Race Tunnel, with bottom elevation as 2483 m and top elevation as 2570 m. Surge shaft concrete, shotcrete lining and grouting completed.
|
Pressure shaft:
A single pressure shaft of 190 m horizontal (top + Bottom) and 564 m high vertical portion construction works including steel lining works has been completed in all respects.
|
 |
Power House:
Excavation in the entire Power House complex as well aw concreting in Control Block and both Units including Tailrace pits and Tail Race cum Cables Tunnel have been completed. Electro-Mechanical Plant & equipment: Both Units (Unit#1 & 2) erection completed along with Balance of Plant (BoP). Dry Test completed for both units. Wet test and commossioning activities scheduled to be completed by May/jun 2011.
|
|
Switch Yard:
Outdoor switch Yard works completed in all respects.
|
 |
 |
Transmission LinePower House:
The Construction of 18 KM long 132 KV D/C transmission line completed in all respects
|
|
132/220 Kv Substation:
132-220 KV step up substation at Chhaur as well as loop in loop out of one circuit of the ADHPL 220 KV, D/C line erection completed in all respects. Testing and commissioning works are in progress.
|
 |
|
|
