Optimization and Selection of Foundation Surface of Sanhekou Reservoir Arch Dam

doi:10.11988/ckyyb.20191000

Journal of Changjiang River Scientific Research Institute ›› 2020, Vol. 37 ›› Issue (3): 114-117.DOI: 10.11988/ckyyb.20191000

• ROCKSOIL ENGINEERING • Previous Articles Next Articles

Optimization and Selection of Foundation Surface of Sanhekou Reservoir Arch Dam

ZHANG Xing-an¹, ZENG Guo-hong², DANG Jian-tao³, GUO Xi-feng⁴

1.Shaanxi Provincial Institute of Water Resources and Electric Power Investigation and Design, Xi’an 710054, China;
2.Baoding Yixian Pumped Storage Co., Ltd., Baoding 074200, China;
3.Hanjiang-to-Weihe River Valley Water Diversion Project Construction Co., Ltd., Xi’an 710100, China;
4.Chongqing Branch, Yangtze River Scientific Research Institute, Chongqing 400026, China

Received:2019-08-15 Published:2020-03-01 Online:2020-03-01

Abstract

Abstract: The foundation rock mass of Sanhekou Reservoir’s arch dam was investigated according to borehole deformation tests and sonic wave tests in the geological drilling at prospecting stage. These tests revealed the deformation characteristics of foundation rock mass and obtained the correlation between borehole deformation modulus and sonic velocity. The standard for selecting the foundation excavation surface according to the drilling quick test was obtained. The elevation of foundation’s excavation surface was optimized from 501 m to 504.5 m. The rationality of this optimization scheme was verified by dam foundation excavation and deformation monitoring.

Key words: foundation surface, deformation modulus, wave velocity, rock mass, Sanhekou reservoir

CLC Number:

TV641

ZHANG Xing-an, ZENG Guo-hong, DANG Jian-tao, GUO Xi-feng. Optimization and Selection of Foundation Surface of Sanhekou Reservoir Arch Dam[J]. Journal of Changjiang River Scientific Research Institute, 2020, 37(3): 114-117.

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Optimization and Selection of Foundation Surface of Sanhekou Reservoir Arch Dam

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