解析法与数值法在水电站防渗墙效果评价中的运用

陈晓恋; 文章; 胡金山; 闵勇章; 梁杏; 孙蓉琳; 李润超

doi:10.3799/dqkx.2016.059

Volume 41 Issue 4

Apr. 2016

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Article Navigation > Earth Science > 2016 > 41(4): 701-710

Chen Xiaolian, Wen Zhang, Hu Jinshan, Min Yongzhang, Liang Xing, Sun Ronglin, Li Runchao, 2016. Application of Numerical Simulation and Analytical Methods to Estimate Hydraulic Parameters of Foundation Pit in Hydropower Stations. Earth Science, 41(4): 701-710. doi: 10.3799/dqkx.2016.059

Citation:

Chen Xiaolian, Wen Zhang, Hu Jinshan, Min Yongzhang, Liang Xing, Sun Ronglin, Li Runchao, 2016. Application of Numerical Simulation and Analytical Methods to Estimate Hydraulic Parameters of Foundation Pit in Hydropower Stations. Earth Science, 41(4): 701-710. doi: 10.3799/dqkx.2016.059

Citation:

Chen Xiaolian, Wen Zhang, Hu Jinshan, Min Yongzhang, Liang Xing, Sun Ronglin, Li Runchao, 2016. Application of Numerical Simulation and Analytical Methods to Estimate Hydraulic Parameters of Foundation Pit in Hydropower Stations. Earth Science, 41(4): 701-710. doi: 10.3799/dqkx.2016.059

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Application of Numerical Simulation and Analytical Methods to Estimate Hydraulic Parameters of Foundation Pit in Hydropower Stations

doi: 10.3799/dqkx.2016.059

1.
School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
2.
Chengdu Surveying and Designing Institute of China Hydropower Engineering Consulting Group, Chengdu 610000, China

Received Date: 2015-05-09
Publish Date: 2016-04-15

Abstract

Abstract

A hydropower station located on Dadu River of Sichuan Province is under construction now. The construction of its impervious walls have been completed basically, however, the discharge of water is still large in the foundation pit of hydropower station. In order to evaluate the performance of impervious walls, two pumping tests was conducted between the two impervious walls. According to the boundary conditions of this area, the comprehensive well function was used to obtain the hydrogeological parameters. On the basis, numerical model is established by using GMS (groundwater modeling system) software to obtain the aquifer parameters after identifying and verifying the model. The results indicate that the hydraulic conductivity of aquifer is between 19.13-32.24 m/d by analytical method, and 26.00 m/d by numerical simulation. In addition, the hydraulic conductivity of impervious walls is very small (0.01-0.02 m/d), it is found that the performance of impervious walls is good.
- foundation pit of hydropower station,
- impervious wall,
- analytical method,
- numerical simulation,
- groundwater,
- hydrogeology

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References(33)

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Application of Numerical Simulation and Analytical Methods to Estimate Hydraulic Parameters of Foundation Pit in Hydropower Stations

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