... Abstract This paper describes the formation of a large cavity in an underground complex at a hydropower plant in the Himalayas. The geometry of the cavity is controlled by the rock joints and foliation that intersected a major steeply dipping shear zone. For stabilization of the cavity, three...

... Abstract Monitoring plays major role in every stage of the project from exploration, construction and operation of the underground cavern. Large cavern in Bhutan Himalayas is being monitored with geotechnical instruments since the construction period. The behavior of the cavern is being...

... thrust, which is one of the major thrust zones in this part of the Himalayas. The tunnel runs from Panjal Volcanics, a competent basaltic rock in which the power station is located, through a thrust zone, ending in red shale at the outlet side. At the Upstream end of the tailrace tunnel, after about 30 m...

... and construction problems in Hydroelectric projects. The design of the powerhouse cavities is highly empirical and cannot be based solely on geological and petrographic description of rocks and on the past experiences particularly in rocks as prevailing in the Himalayas. The theoritical analysis of rock mechanics...

... Upstream Oil & Gas diameter steel liner rcc lining tunnel reservoir geomechanics borehole lining Himalaya principal stress displacement pressure tunnel rock mass in-situ stress internal pressure Reservoir Characterization criteria concrete lining stress measurement...

... SYNOPSIS: The paper presents the results of sub-surface investigations carried out for a hydroelectric power project in the Himalayas. The field studies comprised a seismic refraction survey, in-situ rock testing and bore hole drilling at critical locations to understand the state...

... dem Gebiet der Entwicklungsprojekte fuer Wasserhaushalt und Bergbauindustrie angewandt. Der Ausbruch grosser Stollen und unterirdischer Kraftwerke, besonders im Gebiet des Himalaya, stellte viele komplexe geotechnische Probleme. Das Gebiet war durch zahlreiche aktive Ueberschiebungs- und Scherzonen...

... Summary The Siwalik System of rocks, which make up the foothills of the Himalayas, have been elevated and folged against the older rocks of the mountains. The Siwaliks consist of a series of relatively weak sandstone and clay-shale beds, and, in the folding process of during valley formation...