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PROBABLE RISK ESTIMATION AT JAMRANI DAM PROJECT

May 6, 2010

Source:

http://www.springerlink.com/content/453605011871q42h/fulltext.pdf?page=1

PROBABLE RISK ESTIMATION DUE TO RESERVOIR INDUCED SEISMICITY AT JAMRANI DAM
PROJECT, KUMAON HIMALAYA, INDIA

ESTIMATION DU RISQUE DE SI~[SMICITI~ INDUITE PAR LE RI~SERVOIR SUR LE SITE DU
BARRAGE DE JAMRANI, KUMAON HIMALAYA, INDE

V. K. SHARMA*

Abstract
A lake of about 4.5 sq. km. spread having 208 millions cubic meter storage
capacity is proposed to be created in outer Himalaya for meeting
irrigation, industrial and domestic supplies, downstream of 130 m high Jamrani
dam.

The bedrock around the lake consists of alternate bands of sandstone, clayshale
and siltstone of Siwalik Formations (Middle Miocene to Pliocene)
and thrust mass of Amritpur granite. The tectonic plane (Main Boundary fault)
lies about 3.5 km upstream of the dam.

The problem of Reservoir Induced Seismicity (RIS) though complex and
unpredictable has been studied the world over at several major dam
projects which provide some information on the factors responsible for RIS such
as (i) geo-tectonic setting (ii) pore-water pressure (iii) background
seismicity and (iv) reservoir water load. Any one or the combination of these
factors play an important role in inducing earthquakes. The subject
of RIS has been discussed in the light of the analysis of the seismic risk
related to Jamrani reservoir in its geo-tectonic setting.

Résumé
On se propose de créer un lac d'environ 4,5 kin2, d'une capacité de 208 millions
de m 3 en bordure de UHimalaya, pour l'irrigation et les besoins
domestiques et industriels. Cette retenue serait liée au barrage de Jamrani,
d'une hauteur de 130 m.

Le substratum autour du lac est constitué de banes de grès, de schistes argileux
et de pélites en alternance appartenant /1 la formation de Siwalik
(Milieu Eocene--~ Plioc~ne) et de granite appartenant au massif intrusif
d'Amritpur. Un plan de faible majeur se situe 3,5 km en amont du
barrage.

Le problème de la seismicité induite par Ies réservoirs, a été étudié dans le
monde entier 5. I'occasion de plusieurs projets de barrages importants,
et l'on connait les facteurs responsables de la séismicité induite, les
principaux étant (1) le contexte géostructural (2) la préssion de I'eau
interstitielle. (3) la seismicité ambiante, (4) le volume d'eau contenu dans le
réservoir n'importe lequel de ces facteurs ou la combinaison de
plusieurs d'entre eux peuvent induire des tremblements de terre. L'article
traite de ces problèmes appliqués au réservoir de Jamrani dans son
contexte géostructural.

Introduction
Several dam projects, the world over, subsequent to their impoundment tend to
have shown an enhancement in
seismicity and at few sites destructive earthquakes on this account claimed many
lives and rendered thousands
homeless.

The seismic phenomenon associated with the impoundment of water in artificial
reservoirs known as
'Reservoir Induced Seismicity' (RIS), has drawn attention during last few
decades and is still not fully understood.
Studies on the reservoir induced seismicity at various dam sites have been
accomplished by Carder(1945),
Hubbert and Rubey (1959), Gough (1970), Gupta and Rastogi (1976), Naian (1982),
Guha (1982), Gupta(1989) etc.
to arrive at a scientific explanation on this complex phenomenon.

The studies are of prime concern for the safety of dam and people living in the
environs of the dam. In the present
paper an attempt is made to evaluate and prognosticating the possibilities of
the seismic risk of Jamrani dam after
filling the reservoir.

The Jamrani dam project envisages the construction of a 130 m high roller
compacted concrete dam on river
Gola about 10 km upstream of Kathgodam Barrage in district Nainital of Uttar
Pradesh.

On completion, the dam would impound a reservoir of 208 x 106m 3 capacity. The
impounded reservoir would extend
for about 9 km along the valley of river Gola and about [.3 km along the Logar
valley,
spreading over an area of about 4.5 sq.km.

Geological set up of reservoir area
The Jamrani reservoir is located partly on Lower and Middle Siwalik sedimentary
sequence and partly on
Amritpur Granite (Fig. 1). The Siwalik sedirrfentary...

Source: http://www.tribuneindia.com/2010/20100315/dplus.htm#10

Central nod for Jamrani Dam construction  Tribune News Service

Dehradun, March 14  2010

Chief Minister Ramesh Pokhriyal Nishank has expressed happiness over the Union
Environment and Forests Ministry’s nod for the construction of the Jamrani Dam.
He said the works for Jamrani Dam that had been lying incomplete for the past 35
years would now get into construction mode.
Dr Nishank said the state government had been repeatedly taking up the issue
with the Centre and today went ahead for the construction of the dam. He said
the state officials had met Union Water Resources Minister Pawan Bansal and
pleaded the Jamrani Dam case before him.
The Chief Minister said with coming up the Jamrani Dam Project, the potable
water problem of the Haldwani region would be solved to a big extent. He also
held that with the permission of the minister, the Centre must now also promptly
allot finances for its construction.
The project that was conceptualised by the Planning Commission during 1975 was
also given a go-ahead by the Central Water Commission way back in 1989. But due
to unavoidable reasons, the project could not see the light of the day.
Governments at Uttarakhand had repeatedly been taking up the cause of Jamrani
Dam with the Centre.
The Chief Minister said the dam would also cater to the irrigation needs of
Nainital and Udham Singh Nagar districts, apart from ensuring 30 MW of power
generation.
Dr Nishank also reiterated that his government was committed to all-round
development of the state.

Source: http://www.tribuneindia.com/2009/20090908/dun.htm#4
Nishank seeks central aid for power projects   Rs 500 crore for Song Dam n
Rs 900 crore for Jamrani  Tribune News Service
Dehradun, September 7 Chief Minister Ramesh Pokhriyal Nishank today called
upon Union Water Resources Minister Pawan Bansal in the national capital and
demanded Central assistance for Song dam project near Dehradun and Jamrani
project near Haldwani.
Nishank told Bansal that the Rs 500 crore Song Dam project was cleared by the
Union Environment Ministry in 2007, but the state government could not start it
due to lack of financial resources.
The project, besides fulfilling the drinking water needs of Dehradun city, would
also lead to increase in the irrigated land.
Nishank demanded immediate Central assistance for this important project,
besides help for the Jamrani project near Haldwani town. The Planning Commission
envisaged the Jamrani dam project in 1975 and the Central Water Commission also
granted permission in 1989, but the project could not take off.
According to state government officials, Bansal has agreed to provide finances
for the Rs 900 crore Jamrani project.
The project, when completed, would augment the drinking water supply of
Haldwani, besides increasing irrigation supply on 60,000 hectares land in
Nainital district. The project would also generate 30 MW of power.
Nishank also asked the Union government to liberalise its rule regarding the
upkeep of irrigation channels in remote and inaccessible hilly areas. Bansal
agreed to look into all demands of the state.

Source: http://www.hindu.com/2009/09/08/stories/2009090859720500.htm
Uttarakhand seeks 1,500 crore
Tuesday, Sep 08, 2009,

Sandeep Joshi

NEW DELHI: Uttarakhand Chief Minister Ramesh Pokhriyal Nishank met Union Water
Resources Minister Pawan Kumar Bansal here on Monday and urged him to give
necessary clearances and provide financial help for two vital water projects –
the Saung Dam project in Dehra Dun and the Jamrani Dam project in Haldwani
(Nainital).
Mr. Nishank told the Union Minister that clearances for the two projects had
been obtained from the Forests and Environment Ministry but it was due to lack
of a go-ahead from the Water Resources Ministry and paucity of funds that the
State Government was unable to implement the projects.
The Chief Ministersought around Rs.1,500 crore from the Centre for the two
projects that would meet the drinking water needs of lakhs of residents of the
hill State’s two major cities – Dehra Dun and Haldwani. he told the Union
Minister that while the Saung Dam project was crucial for the State capital, the
Jamrani Dam project was vital for Haldwani city and expansion of the 60,000
hectare irrigation facility for Nainital district.
“The Jamrani project was recommended by the Planning Commission in 1975 and
approved by the Central Water Commission in 1989, but since then little progress
has been made on it,” he informed.