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清远抽水蓄能电站地应力测试分析与高压隧洞设计验证
引用本文:尹健民,郭喜峰,艾凯,李永松.清远抽水蓄能电站地应力测试分析与高压隧洞设计验证[J].长江科学院院报,2008,25(5).
作者姓名:尹健民  郭喜峰  艾凯  李永松
作者单位:长江科学院,水利部岩土力学与工程重点实验室,武汉,430010
基金项目:国家自然科学基金委员会、二滩水电开发有限责任公司雅砻江水电开发联合研究基金
摘    要:为了论证清远抽水蓄能电站高压引水隧洞设计方案的合理性,需要确定地下厂房和高压隧洞的地应力状态.介绍了根据上抬理论给出的隧洞设计方案.利用应力解除法和水压致裂法进行了现场地应力测试,并结合有限元回归分析,预测了包括重要工程部位在内的整个工程区岩体应力分布.最后运用最小主应力准则,验证表明高压引水隧洞围岩满足抗水力劈裂要求,并讨论了衬砌设计方案.

关 键 词:抽水蓄能电站  地应力  测试  回归分析  设计验证

Analysis of In-situ Stress Measurement and High Pressure Tunnel's Design Verification for Qingyuan Pumped Storage Plant
YIN Jian-min,GUO Xi-feng,AI Kai,LI Yong-song.Analysis of In-situ Stress Measurement and High Pressure Tunnel''s Design Verification for Qingyuan Pumped Storage Plant[J].Journal of Yangtze River Scientific Research Institute,2008,25(5).
Authors:YIN Jian-min  GUO Xi-feng  AI Kai  LI Yong-song
Affiliation:YIN Jian-min,GUO Xi-feng,AI Kai,LI Yong-song(Key Laboratory of Geotechnical Mechanics , Engineering of the Ministry of Water Resources,Yangtze River Scientific Research Institute,Wuhan 430010,China)
Abstract:In order to evaluate the design scheme of the pressure tunnel of Qingyuan Pumped Storage Power Plant,the in-situ stress state at underground power house and pressure tunnel should be determined.Thus,a design scheme was obtained based on the vertical criterion.And then in-situ stress measurements by hydro-fracturing method and overcoring method were carried out.Also,the stress distribution in the whole rock mass including the major project locations was obtained through FEM regression analysis.Finally,on the...
Keywords:pumped storage power plant  in-situ stress  measurement  regression analysis  design verification  
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