The Tehri Dam is a 260.5 meter high rock and earth fill dam located on the Bhagirathi River in Uttarakhand, India. Construction began in 1978 but was delayed by protests and other issues. It provides 1000 MW of power and irrigation to over 2.7 lakh hectares of land. Completion in 2006 after overcoming problems like earthquakes, landslides, and escalated costs. Benefits include power, irrigation, drinking water, and regional development.
The Tehri Dam is the highest dam in India and one of the highest in the world.
Location : On the Bhagirathi River. 200 miles north east of Delhi.
Height : 855 feet (261 m) 5th tallest dam in the world.
Capacity : power generation capacity of 2400 MW provision of irrigation to an area of 270,000 hectares.
The Tehri Dam withholds a reservoir for irrigation, municipal water supply and the generation of 1,000 megawatts of hydroelectricity.
Tehri Development Project approved in 1972
Construction started 1978
Cofferdam completed 1996
Closure of last two tunnels December 2002
Projected completion August 2003
Benefits to Nation / Region
2400MW of environment friendly Peaking power.
Irrigation of 2.7 lakh hactors Of new area.
162 million gallons per day of water supply to Delhi.
All round development of the region through better infrastructure and easy avalaibility of electricity.
Development of pisciculture.
Presentation is about the Uttrakhand Disaster 2013, whether it was man made disaster or natural calamity. We have through vast number of reports, magazines, blogs, journals so please give your feedback on this report to me and encourage me do upload more slides and presentation which will be helpful to you all. Thanks in advance for your valuable feedback.
The Tehri Dam is the highest dam in India and one of the highest in the world.
Location : On the Bhagirathi River. 200 miles north east of Delhi.
Height : 855 feet (261 m) 5th tallest dam in the world.
Capacity : power generation capacity of 2400 MW provision of irrigation to an area of 270,000 hectares.
The Tehri Dam withholds a reservoir for irrigation, municipal water supply and the generation of 1,000 megawatts of hydroelectricity.
Tehri Development Project approved in 1972
Construction started 1978
Cofferdam completed 1996
Closure of last two tunnels December 2002
Projected completion August 2003
Benefits to Nation / Region
2400MW of environment friendly Peaking power.
Irrigation of 2.7 lakh hactors Of new area.
162 million gallons per day of water supply to Delhi.
All round development of the region through better infrastructure and easy avalaibility of electricity.
Development of pisciculture.
Presentation is about the Uttrakhand Disaster 2013, whether it was man made disaster or natural calamity. We have through vast number of reports, magazines, blogs, journals so please give your feedback on this report to me and encourage me do upload more slides and presentation which will be helpful to you all. Thanks in advance for your valuable feedback.
The disaster management and the details about the floods that occurred in Chennai City in the month of November-December 2015 were clearly discussed in the presentation.
Uttarakhand Flood 2021
NTPC project
rishi ganga, dhauli ganga hydro power project
Date – 7th February 2021
Affected Rivers – Rishi Ganga and Dhauli Ganga
At least 65 people are believed to have been washed away in the debris, with 141 people still reported missing (official estimate).
Rishiganga Hydro power project of 13.2 MW was damaged and the under-construction 520 MW Tapovan Vishnugad project downstream was washed away.
The main cause of the incident is yet to be determined but it is clear that there was an avalanche causing the flash flood in Rishi and Dhauli Ganga rivers.
The Tapovan power project
Of the four power plants that were damaged in the floods, the privately owned Rishi Ganga project was the smallest, with a generation capacity of 13.3 MW.
The debris from this plant damaged other units downstream and endangered the lives of the people working there. This includes the state-run Tapovan (520 MW) and Pipal Koti (4×111 MW) projects and the private Vishnuprayag (400 MW) project.
Building of large dams on rivers alters ecosystems by fragmenting rivers. Unsustainable developmental activities will hinder India’s commitments to achieve Sustainable Development Goals (SDGs) by 2030.
Besides, the construction and widening of roads leads to the clearing of forests that harbour various microbial, faunal, and floral communities impacting the ecosystems more adversely.
Brief Description of Kerala Flood of 2018
and In starting some flood infomation is also discussed
and also given information about donation by diffferent peoples and commpanys and states.
It is a PowerPoint Presentation made by Vatsal Y. Pokar for a school competition. It provides a detailed explanation on Bhakra-Nangal Dam built on Indian River-Satluj.
SSP would generate electricity. On completion, annual additional agricultural production would be Rs. 1600 crores, power generation and water supply Rs. 175 crores, aggregating about Rs. 2175 crores every year equivalent to about Rs. 6.0 crores a day.
Gujarat-india-engineering-mega structure.
Rapid Damage and Needs Assessment Report (RDNA), post-Cyclone Phailin in Odisha, was prepared in response to a request from the Department of Economic Affairs (DEA), Government of India (GoI). It was undertaken jointly by the Government of Odisha (GoO), the Asian Development Bank and the World Bank.
The RDNA team visited Bhubaneswar (Odisha) and the three most severely affected districts of Ganjam, Puri and Khordha, from November 26 to December 3 2013, and collaborated with the GoO to assess the damage and develop a recovery and restoration framework.
The disaster management and the details about the floods that occurred in Chennai City in the month of November-December 2015 were clearly discussed in the presentation.
Uttarakhand Flood 2021
NTPC project
rishi ganga, dhauli ganga hydro power project
Date – 7th February 2021
Affected Rivers – Rishi Ganga and Dhauli Ganga
At least 65 people are believed to have been washed away in the debris, with 141 people still reported missing (official estimate).
Rishiganga Hydro power project of 13.2 MW was damaged and the under-construction 520 MW Tapovan Vishnugad project downstream was washed away.
The main cause of the incident is yet to be determined but it is clear that there was an avalanche causing the flash flood in Rishi and Dhauli Ganga rivers.
The Tapovan power project
Of the four power plants that were damaged in the floods, the privately owned Rishi Ganga project was the smallest, with a generation capacity of 13.3 MW.
The debris from this plant damaged other units downstream and endangered the lives of the people working there. This includes the state-run Tapovan (520 MW) and Pipal Koti (4×111 MW) projects and the private Vishnuprayag (400 MW) project.
Building of large dams on rivers alters ecosystems by fragmenting rivers. Unsustainable developmental activities will hinder India’s commitments to achieve Sustainable Development Goals (SDGs) by 2030.
Besides, the construction and widening of roads leads to the clearing of forests that harbour various microbial, faunal, and floral communities impacting the ecosystems more adversely.
Brief Description of Kerala Flood of 2018
and In starting some flood infomation is also discussed
and also given information about donation by diffferent peoples and commpanys and states.
It is a PowerPoint Presentation made by Vatsal Y. Pokar for a school competition. It provides a detailed explanation on Bhakra-Nangal Dam built on Indian River-Satluj.
SSP would generate electricity. On completion, annual additional agricultural production would be Rs. 1600 crores, power generation and water supply Rs. 175 crores, aggregating about Rs. 2175 crores every year equivalent to about Rs. 6.0 crores a day.
Gujarat-india-engineering-mega structure.
Rapid Damage and Needs Assessment Report (RDNA), post-Cyclone Phailin in Odisha, was prepared in response to a request from the Department of Economic Affairs (DEA), Government of India (GoI). It was undertaken jointly by the Government of Odisha (GoO), the Asian Development Bank and the World Bank.
The RDNA team visited Bhubaneswar (Odisha) and the three most severely affected districts of Ganjam, Puri and Khordha, from November 26 to December 3 2013, and collaborated with the GoO to assess the damage and develop a recovery and restoration framework.
This is a case study and analysis on the Dulhasti Dam Power Plant Project in India. It highlights those areas which experienced the big hits in the cost estimation procedures and what steps did the Indian Govt. take in order to sustain the budgetary perspective and complete the project.
Project Management is a discipline of planning, organizing, motivating, controlling resources to achieve specific goals. The presentation tell you about "Konkan Railway Project" undertaken by Indian government. It in details tells you about the challenges faced, problems occurred, Risk involved, new technology used and many other details.
Summer training report on NTPC Badarpur ,DELHI
This Report includes the following department
1. Turbine Maintenance Department
2. Boiler Maintenance Department
3. Plant Auxiliary Maintenance
4. Coal Handling Department
a summer training report on ntpc
1.turbine maintenance department
2.Boiler maintenance department
3. Plant Auxiliary maintenance Department
4. Coal handling department
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
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Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Forklift Classes Overview by Intella PartsIntella Parts
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Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
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Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
1. Jaypee University of Engineering and Technology
Guna (M.P.)
A Project Report On
Tehri Dam
Submitted To: Submitted By:
Mr. Krishna Murari Rachit Khandelwal
Senior Lecturer Er No.-091558
Department Of Civil Engineering Civil (D2)
2. Tehri Dam
Introduction
The Tehri Dam is a multi-purpose rock and earth-fill embankment dam on the Bhagirathi River
near Tehri in Uttarakhand, India. It is the primary dam of the Tehri Hydro Development
Corporation Ltd. and the Tehri hydroelectric complex.
Tehri Dam Project is one of the important storage cum hydro energy generation complex is in the
Himalayan region of the country. After Bhakara it is the biggest water storage dam and may
provide benefits to the water starved areas of Western U.P., Uttaranchal and Delhi. The hydro-energy
may add to the peaking capacity of the Northern Grid and may help in stabilizing it.
History
A preliminary investigation for the Tehri Dam Project was completed in 1961 and its design was
completed in 1972 with a 600 MW capacity power plant based on the study. Construction began
in 1978 after feasibility studies but was delayed due to financial, environmental and social
impacts. In 1986, technical and financial assistance was provided by the USSR but this was
interrupted years later with political instability. India was forced to take control of the project
and at first it was placed under the direction of the Irrigation Department of Uttar Pradesh.
However, in 1988 the Tehri Hydro Development Corporation was formed to manage the dam
and 75% of the funding would be provide by the federal government, 25% by the state. Uttar
Pradesh would finance the entire irrigation portion of the project. In 1990, the project was
reconsidered and the design changed to its current multi-purpose. Construction of the Tehri Dam
was complete in 2006.
Location
Tehri Dam is the primary dam of the Tehri Development Project, a major hydroelectric project
centered near Tehri Town in the state of Uttarakhand in India.It is located on the Bhagirathi
River, the principal tributary of the sacred River Ganga
3. Technical description
1. Earth & Rock Fill Dam :
Type : Rock and Earth Fill Height : 260.5 m
Base : 1128 m Width at top : 25.5 m
Length at the top : 592 m
2. Tehri Reservoir:
Water Spread : 42 SQ KM Gross Storage : 3540 Miliion Cum
Live Storage : 2615 Million Cum
3. Power House:
Power House : Under ground Cavern
Size : 197mx24mx63m
Type of Turbines : Francis
Rated Head : 188 M Speed : 214.3 RPM
Installed Capacity : 4x250MW
Annual Energy : 3568 MUs
4. Time Line for Tehri Dam
1949 Tehri dam conceived
1961 Tehri chosen as a tentative site for the dam
1972 Planning Commission gives its nod to the dam
1978 Actual construction of the dam begins under police protection; Protests gather momentum
1980 Environmental Appraisal Committee appointed by the government, refuses environmental
clearance
1986 Diversion tunnels start operating; Protestors storm the site and stall construction work
1990 Environmental Appraisal Committee, the D R Bhumbla committee, rejects the dam again
1991 Earthquake measuring 6.6 on Richter scale rocks Uttarkashi. Renewed concerns about the
seismic safety of the dam.
1992 Sunderlal Bahuguna goes on a fast unto death. Work on the dam temporarily stopped. Gain
in 1995
1996 Government sets up the V K Gaur committee to look into seismic safety
1997 Hanumantha Rao committee on rehabilitation submits its report. Recommends major
changes in rehabilitation policy
1998 Gaur committee submits its report. Asks for detailed analysis
1999 Chamoli earthquake, measuring 6.8, brings large scale destruction. Anti-dam activists up in
arms about safety
1999 Committee of secretaries of the Union government clears dam
January 2001 Bhuj Earthquake Again Raises Concerns
April 2001 Government Forms another Committee under the S&T Minister Murli Manohar
Joshi
November 2002 M M Joshi Committee Submits Its Report. Says The Dam Is Safe To Withstand
An Earthquake Of High Magnitude
September 2003 In A Divided Verdict, The Supreme Court Clears The Legal Hurdles For Dam
Construction
March 2004 Tunnel T2 Closed. Water Level Rises To 648 Metres Submerging Many Parts Of
Old Tehri Town
July 29, 2004 Water Level Rises To 655 Metres Submerging The Remaining Parts Of The Tehri
Town. Residents Flee For Their Lives
August 2004 Internal Landslide at The Dam Site. 29 Workers Dead
2006 Tehri Town Fully Submerges. First Stage Of Project Completes. (Total Production 1000
Mw)
5. Components of Tehri Hydro Power Complex
Tehri Hydro Power Complex (2400 MW), comprises the following components:
1. Tehri Dam & Hydro Power Plant (1000 MW)
2. Koteshwar Hydro Electric Project (400 MW)
3. Tehri Pumped Storage Plant (PSP) (1000 MW)
The Govt. in March, 1994 approved the implementation of Tehri Dam & HPP (1000 MW) along
with committed works of Koteshwar HEP and essential works of Tehri PSP, as Stage-I of Tehri
Power Complex. With the synchronization 4th unit of 250 MW in March-07, Tehri Power
Station has become fully operation with installed capacity of 1000 MW.
The 400 MW Koteshwar HEP, was approved by Govt. in April,2000 and the work has
progressed in right earnest and after completion of major excavation work in Dam & Spillway,
Stiling Basin and Power Intake area, the concreting was started and is progressing in full swing.
Investment approval for Tehri PSP (1000 MW) has been accorded by the Govt. in July’06 at an
estimated project cost of Rs. 1657.60 Cr. (at Dec’05 Price Level) with Debt Equity ratio of
70:30. The essential works of Tehri PSP have already been completed with Tehri Dam & HPP
Stage-I.
Estimated Project Cost
Item Cost in Crores Rupees
Major Civil works including Hydro
1325.76
Mechanical works
Electro Mechanical Equipment 543.03
Infrastructure 152.02
Rehabilitation & resettlement 412.22
Environment 66.00
Establishment 249.53
Others 180.24
Sub total 2963.66
Interest During Construction(IDC) and
427.74
Financing Charges
Total Rs. 3357.04
6. Actual Project Cost
Due to some agitations lot of valuable construction time was lost and there was delay in the
startup work. The project revised cost estimates as per March 2002-03 is as follows.
Item Cost in Crores Rupees
Major Civil works including Hydro
3034.59
Mechanical works
Electro Mechanical Equipment 1107.85
Infrastructure 159.67
Rehabilitation & resettlement 983.14
Environment 141.74
Establishment 346.93
Others 287.40
Sub total 6061.32
Interest During Construction(IDC) and
560.00
Financing Charges
Total 6621.32
Project Cost Escalation and Completion Time through the Year
S.
No.
Description Amount in Rs. Crores
1 Total Cost of Project March 93 Price
level to be completed in 1999
2963.66
2 March 2003 Price level To be
commissioned by 2005 (March)
6621.32 crores
3 Feb. 2005, (Expenditure to date) To be
completed by March 2006
6896.84 crores
Type of Contract
The contract bidding was as per the International Contract Bidding procedures (ICB) and bids
were undertaken for various packages constituting the total work. It is a normal item rate
contract. These procedures are prevalent in the construction industry in India and were
acceptable to the THDC and Govt. of India.
7. Contractors
1. Dam:
The tenders for dam were invited in 1993. The bidders gave wide ranging cost estimates and
programmes. This necessitated rebidding. The important details of rebid are given below.
1
2 Date of tender floated – 8th May 1996
3 Date of bid opening – 9th Aug. 1996
4 Date of Letter of intent – 10th Jan. 1997
5 Date of agreement – 27th Jan. 1997
6 Date start of work – 1st Feb. 1997
7 Value of contract – Rs. 898.45 crores
The following were the bidders for the Dam.
1 M/S Jaiprakash Industries
2 Hindustan Construction Company
3 Continental Construction Company
The contract was awarded to Jaiprakash Industries
2. Spill way:
The bids for spillway were invited as per the following details.
1) Date of tender initiated – 18th Sept. 1998
2) Date of opening of bids – 11th Nov. 1998
3) Date of issue of Letter of Intent – 15th Dec. 1998
4) Date of agreement – 28th 1998
5) Date of start of work – 1st Feb. 1998
6) Value of contract – Rs. 474.81
The bidders were as follows
1) Jaiprakash Industries
2) Karamchand Thapar
3) Hindustan Construction Company
4) Lanco
5) Gammons
6) Bhagirathi
The contract was awarded to Jaiprakash Industries
8. 3. Power House:
The tenders for Power House (Package I, II, III) were floated in 1995. The following are the
important acts.
(1) Tenders floated on 10.05.93
(2) Tenders opened on 15.12.93
(3) Amendments issued on 19.08.93
(4) Price bid opened on 03.01.95
(5) Contract awarded on 09.11.95
(6) Value of contract for the packages Rs. 210.84 crores
Following were the bidders
(1) M/S Thapars
(2) Hindustan Construction Ltd.
The contract was awarded to M/S Thapars
4. Tehri Pumped Storage Plant:
Major works of the Project have been planned to be executed through a single EPC contract.
Agreement for EPC/Turnkey execution of the Project has been signed with the consortium of
M/S Alstom Hydro France and Hindustan Construction Company on 23rd June-2011. Work
on the project has commenced w.e.f. 27th Jul-11.
Problems of the project
Major projects done in far flung and inhospitable terrain with seismic risk, executed in younger
Himalayan rocks may have many problems. Any project is normally executed with activities in
the following chronology.
(1) Site identification, pre feasibility
(2) Detailed investigation
(3) Planning of the project and preparation of detailed feasibility report with realistic cost
estimates.
(4) Designing of different components
(5) Arranging finances
(6) Rehabilitation and resettlement and land acquisition
(7) Infrastructure development
(8) Setting up base facilities for construction
(9) Construction
(10) Testing the system and operation
9. Dam safety
Safety of Tehri Dam had always been an issue with the local people and the knowledgeable
persons in the scientific field. In Feb. 1967, Mr. N.N.Yakovlov, UN Expert, recommended
rockfill Dam to be the best solution. Mr. J.B. Cook, of USA in1972 also concluded that a high
Dam at Tehri was feasible. In the year 1990 a high level committee was also constituted to look
into it further. This committee also considered the Dam safe. After Utterakashi earthquake in
October, 1991 the matter was once again looked into in depth. The Russians also studied the
earthquake safety and declared it to be the gentle Dam to with stand severe earthquake shocks up
to 8.5 magnitude.
Benefits
The main benefits from the Project when completed would be:
Addition to the installed capacity in Northern Region: 1000 MW (2400 MW on completion
of entire Complex)
Annual energy availability peaking: 3568 Million Units (6200 MU on completion of entire
Complex)
Additional irrigation in 2.7 lakh hectares area besides stabilization in existing 6.04 lakh
hectares area.
162 Million Gallons of water per day (300 Cusecs) for drinking water supply to Delhi to
cater to a population of 40 lac.
108 Million Gallons of water per day (200 Cusecs) for drinking water supply to the towns
and villages of Uttar Pradesh.
Integrated development of Garhwal Region, including construction of a new hill stations viz.
New Tehri Town (NTT) with provision of all possible facility, improved communication,
education, health, tourist traffic, setting up of non- polluting industries, development of
horticulture, fisheries, afforestation of the region etc. much to the advantage of the people of
the region.