Date
02 Jun 1988, 10:30 am - 3:00 pm
Abstract
A large power house cavern (22m x 50m x 250m) is proposed to be excavated for installing a 1000 MW hydroelectric power plant for Tehri Dam Project. The gorge chosen for the dam is very narrow and the topography is rugged and inhospitable. This dampened the process of preconstruction investigations. A number of tunnels were constructed for various project structures in the vicinity of the cavern. This provided an excellent opportunity to study the rock mass behaviour. Tunnel closure and rock loads were monitored with the help of instruments. Deformation moduli were also determined for different rock grades with the help of various techniques. A voluminous data had been obtained. This data had been analyzed thoroughly and values of various parameters had been suggested for the final design of underground cavern and the supporting structures.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
2nd Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1988 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Dube, A. K. and Singh, B., "Rock Mass Behaviour Assessment for Large Cavern in Rock" (1988). International Conference on Case Histories in Geotechnical Engineering. 26.
https://scholarsmine.mst.edu/icchge/2icchge/2icchge-session2/26
Rock Mass Behaviour Assessment for Large Cavern in Rock
A large power house cavern (22m x 50m x 250m) is proposed to be excavated for installing a 1000 MW hydroelectric power plant for Tehri Dam Project. The gorge chosen for the dam is very narrow and the topography is rugged and inhospitable. This dampened the process of preconstruction investigations. A number of tunnels were constructed for various project structures in the vicinity of the cavern. This provided an excellent opportunity to study the rock mass behaviour. Tunnel closure and rock loads were monitored with the help of instruments. Deformation moduli were also determined for different rock grades with the help of various techniques. A voluminous data had been obtained. This data had been analyzed thoroughly and values of various parameters had been suggested for the final design of underground cavern and the supporting structures.
