Date
02 Jun 1988, 10:30 am - 3:00 pm
Abstract
During the initial stage of construction of a 23 m high composite dam across the Guhai river, the downstream dipping sedimentary rock sequence of conglomerate, sandstone and shale resting unconformably over quartzite and schist was encountered as a surprise during the excavation of the foundation. Besides, an 8 to 8.5 m wide major fault zone along with three minor faults running across the dam axis were also noticed. Extensive subsurface investigations to study the nature and characteristics of sedimentary rocks, fault zones, etc. met with in the foundations were undertaken concurrently with the construction activity. As a result, the construction schedule was greatly affected. The paper discusses the detailed evaluation of the geological flaws by thorough investigation and foundation treatment evolved to safeguard the structure.
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
Pancholi, D. M.; Modhwadia, K. E.; and Vaidya, P. H., "Geo-Engineering Problems in the Spillway Foundations and Their Treatment at Guhai Reservoir Project in Gujurat, India" (1988). International Conference on Case Histories in Geotechnical Engineering. 16.
https://scholarsmine.mst.edu/icchge/2icchge/2icchge-session2/16
Geo-Engineering Problems in the Spillway Foundations and Their Treatment at Guhai Reservoir Project in Gujurat, India
During the initial stage of construction of a 23 m high composite dam across the Guhai river, the downstream dipping sedimentary rock sequence of conglomerate, sandstone and shale resting unconformably over quartzite and schist was encountered as a surprise during the excavation of the foundation. Besides, an 8 to 8.5 m wide major fault zone along with three minor faults running across the dam axis were also noticed. Extensive subsurface investigations to study the nature and characteristics of sedimentary rocks, fault zones, etc. met with in the foundations were undertaken concurrently with the construction activity. As a result, the construction schedule was greatly affected. The paper discusses the detailed evaluation of the geological flaws by thorough investigation and foundation treatment evolved to safeguard the structure.
