Post on 06-Mar-2018
Department of Civil Engineering
A Report on
Industrial Visit at
Sardar Sarovar Dam Site & Dhanki Pumping
Station
(Dt.13-10-2015 & 14-10-2015)
Prepared by:
Jignesh Shah
Details of Visit: Date: 13/10/2015 &14/10/2015
Place: Sardar Sarovar Dam, Kevadiya Colony and Dhanki Pumping Station.
Faculty Coordinators:Asst. Prof. Jignesh Shah, Asst. Prof. Kinjal Rank, Asst. Prof. Maulik Panseriya ,Lab
Assistant Manedra Vyas and kalpana Shukla, Total Staff 5nos
Students:Total Student 98nos , Students of 7th
Sem & 5th
Sem Civil Engineering.
Total Strength: 103nos (Student 98nos & Staff 5nos)
Sardar Sarovar Project Profile: The Sardar Sarovar Project is one of the largest water resources projects of India covering four major states -
Maharashtra, Madhya Pradesh, Gujarat and Rajasthan.
Dam's spillway discharging capacity (30.7 lakhs cusecs) would be third highest in the world.
With 1133 cumecs (40000 cusecs) capacity at the head regulator, and 532 km. length, the Narmada Main
Canal would be the largest irrigation canal in the world.
The dam will be the third highest concrete dam (163 meters) in India, the first two being Bhakra (226 metres)
in Himachal Pradesh and Lakhwar (192 meters) in Uttar Pradesh.
In terms of the volume of concrete involved for gravity dams, this dam will be ranking as the second largest in
the world with an aggregate volume of 6.82 million cu.m. The first is Grand Coule Dam in USA with a total
volume of 8.0 million cu.m.
This dam with its spillway discharging capacity of 85,000 cumecs (30 lakh cusec), will be the third in the
world, Gazenba (1.13 lac cumecs) in China and Tucurri (1.0 lac cumecs) in Brazil being the first two.
The reservoir would occupy an area of 37,000 ha. & would have a linear stretch of 214 kilometres of water and
an average widthof1.77kilometres. The Full Reservoir Level (FRL) of the Sardar Sarovar Dam is fixed at RL
138.68 metres (455 feet). The Maximum Water Level is 140.21 metres (460 feet.) while minimum draw down
level is 110.64 metres (363 feet.). The normal tail water level is 25.91 metres (85 feet.).
Features of Narmada Project:
Dam:
1) Length of main concrete gravity dam: 1210.00 m
2) Maximum height above deepest foundation level: 163.00 m
3) Top R.L. of dam: 146.50 m
4) Catchments area of river above dam site: 88,000 Sq. km
5) Live storage capacity 0.5860M.Ha.m: (4.75 MAF)
6) Length of reservoir: 214.00 km, Maximum width: 16.10 km, Average Width: 1.77 km
7) Spillway gates
Chute Spillway: 7 Nos. 60' x 60', Service Spillway:23 Nos. 60' x 55'
8) Spillway Capacity: 85000 cumecs (30 lakh cusecs)
Power Houses:
1 River Bed Power House: 1200MW
2 Canal Head Power House: 250 MW
Canal System: Main Canal
1 Full supply level (F.S.L.) at H.R. 91.44 m (300ft)
2 Length upto Gujarat - Rajasthan border 458.318 km,
3 Base width in head reach 73.01 m
4 Full supply depth (F.S.D.) in head reach 7.60 m
5 Design discharge capacity
(1) In head reach 1133 cumecs(40,000 cusecs)
(2) At Gujarat Rajasthan border 74.55 cumecs(2,600 cusecs)
Distribution System:
1 Numbers of Branches 38
2 Length of distribution system network 74626.00 km
3 Culturable Command Area 18.45 lakh hectares
Dhanki Pumping Station- Project Profile:
This Pumping scheme is the only source of water supply to Saurashtra region. Approximately
132 towns and talukas covering large number of villages shall be benefitted by this scheme.
Area of approx five lakh hectares of land will be irrigated thus bringing green revolution in
Saurashtra region.
Pumping
Station No.
Chainage
in km
Name of
Village
No. of CV
Pumps (20Cumecs)
No. of VT
Pumps (5Cumecs)
Lifting
Hight
PS-1 68.485 Dhanki 10 6 10.6m
VTP: Vertical Turbine Pumps, CVP: Concrete Volute Pumps 10nos of Concrete Volute Pumps and 5nos of Vertical Turbine Pumps are mounted. It lifts the water 10.6m from
Narmada main canal to Saurashtra region canal.
Detailed Schedule of visit: Transportation facility was provided by the college.
Students of 7th
& 5th
sem Civil Engineering along with faculty coordinators left for visit at 5:00 AM from
Rajkot.
We reached at dhanki pumping station at10:30 A.M. the permission for the visit was taken priorly.
Executive Engineer Shri Thakkar sir and his technical team guided us during the visit. First we were taken to
pump house were 11nos of Concrete Volute Pumps and 5nos of Vertical Turbine Pumps are mounted. It lifts
the water 10.6m from Narmada main canal to Saurashtra region canal.
After that we visited control station. It is fully automated and computerized.
Then after we started journey towards sardar sarovar. We reached kevadia colony at 8:00PM and take night
stay at vishram gruh.
Next morning we started our visit at 8:00 AM the permission for the visit was taken from main office at
Kevadiya Colony.
The guides 2nos were provided by the main office.
First we were taken to The Sadhu Tekri by our college bus, where The Statue of Unity is going to built. The
Statue of Unity is a planned 182 metres (597 ft) monument of Sardar Vallabhbhai Patel that will be created
directly facing the Narmada Dam, 3.2 km away on the river island called Sadhu Bet.
After that we reached the RBPH (River Bed Power House). The RBPH is an underground power house
stationed on the right bank of the river located about 165 meters downstream of the dam. The college bus was
not allowed so a mini bus was provided by them to reach the RBPH. RBPH has six number of Francis type
reversible turbine generators each of 200 MW installed capacity. The generation of energy depends upon
inflow of water from upstream projects and need of water for irrigation in Gujarat. The State Power Sharing is
,Maharashtra 27% ,Gujarat 16% ,Madhya Pradesh 57%
After that we reached the Sardar Sarovar Dam by our college bus. It is a concrete gravity dam, 1210 meters
(3970 feet) in length and with a maximum height of 163 meters above the deepest foundation level, which is
under construction across river Narmada. It is a 10.5 earthquake-resistant dam. The dam will be the third
highest concrete dam (163 meters) in India, the first two being Bhakra (226 metres) in Himachal Pradesh and
Lakhwar (192 meters) in Uttar Pradesh. In terms of the volume of concrete involved for gravity dams, this dam
will be ranking as the second largest in the world with an aggregate volume of 6.82 million cu.m. The first is
Grand Coule Dam in USA with a total volume of 8.0 million cu.m. This dam with its spillway discharging
capacity of 85,000 cumecs (30.00 lac), will be the third in the world, Gazenba (1.13 lac cumecs) in China and
Tucurri (1.0 lac cumecs) in Brazil being the first two.
After that we walked near about 1.5 kilometres and reached the CHPH (Canal Head Power House). There we
met Mr. G. M. Panchal who gave us permission to visit the control room of CHPH. The CHPH is a surface
power station in a saddle dam on right bank of the reservoir having total installed capacity of 250 MW. It
contains five turbines each of 50 MW installed capacity.
Then we reached the Godbole Gate. Godbole Gate essentially is a device to discharge surplus water back to the
River and not to the Head Regulator of the canal. It maintains the level of the water.
Then we reached the Narmada Main Canal by our college bus. The Canal is 532 km long. It is the biggest lined
irrigation canal in the world. The canal extends in the state of Rajasthan to irrigate areas in Barmer and Jhalore
districts of Rajasthan.
Then we visited Lake No. 1, 2, 3 & 4 by bus.
At last we reached to our starting point, the Main Office by bus.
We took lunch at a restaurant at 01:00 PM. Then we left for Rajkot at 02:00 PM.
We reached Rajkot at 10:30 PM.
Abstract of overall knowledge that the students gained from the visit: Students got knowledge about Statue of Unity & its importance. Two power houses of Sardar Sarovar Project
where shown; RBPH & CHPH.
They were introduced about RBPH & CHPH, technologies used for building them, their constructional
features, their working, and their role in power generation.
They also got knowledge about control room and internal structure of turbine generators in CHPH.
They came to know about the constructional features of the Sardar Sarovar Dam, its importance, its total
completed construction work and its working methodology.
They got knowledge about the Main Canal & its usefulness to the villages of Gujarat & Rajasthan as well as its
benefits & importance for the people of different states.
Photo Gallery: Dhanki Pumping Station: