原位直剪试验在抽水蓄能电站重力坝设计中的应用研究  

Application of In-Situ Direct Shear Test in Gravity Dam Design of Pumped Storage Power Station

作　　者：宋传星 移根旺 姚高峰 宋德旻 刘洪全 SONG Chuanxing;YI Genwang;YAO Gaofeng;SONG Demin;LIU Hongquan(China Energy Engineering Group Guangxi Electric Power Design Institute Co.Ltd.,Nanning 530023,China;Shijiazhuang Tiedao University Shijiazhuang,050043 China)

机构地区：[1]中国能源建设集团广西电力设计研究院有限公司,广西南宁530023 [2]石家庄铁道大学,河北石家庄050043

出　　处：《红水河》2023年第3期129-133,147,共6页Hongshui River

摘　　要：岩体抗剪强度是大坝设计最基本的参数。笔者结合某抽水蓄能电站下水库碾压混凝土重力坝设计中采用的抗剪强度获取,详细介绍坝基混凝土与岩体接触面抗剪(断)试验方法和流程,总结出试验中的注意事项。结果表明,只要试验操作规范,尽量减少人为因素造成的数据不可靠情况,就可获得更加准确可靠的岩体抗剪强度,为抽水蓄能电站大坝设计稳定分析提供合理的岩体抗剪强度参数,既提高大坝的安全性,也合理控制工程造价。The shear strength of rock mass is the most basic parameter in dam design.Based on the shear strength acquisition used in the design of RCC gravity dam in the lower reservoir of a pumped storage power station,the authors introduce in detail the shear(fracture)test method and process of the contact surface between dam foundation concrete and rock mass,and summarize the precautions in the test.The results show that as long as the test operation is standardized and the data caused by human factors is minimized,more accurate and reliable shear strength of rock mass can be obtained,which provides reasonable shear strength parameters for the design stability analysis of pumped storage power station dam.It not only improves the safety of the dam,but also reasonably controls the project cost.

关 键 词：原位直剪试验 抽水蓄能电站 抗剪强度 黏聚力 摩擦系数 

分 类 号：TV743[水利工程—水利水电工程] TU413[建筑科学—岩土工程]