摘要
某水电站上部压力竖井在反井溜渣开挖支护过程中,受F25断层带影响围岩破碎并遇季节性地下水量增加,导致大范围塌方,通过一系列模拟计算,确定支护措施,确保了上部压力竖井顺利贯通,支护后对塌方段进行收敛监测,结果显示支护后变形微小稳定,此开挖过程中采取一系列有效安全措施进行总结,对类似工程有一定的参考价值。
In the process of dregs excavation and support in the upper pressure shaft of a hydropower station,the surrounding rock is broken under the influence of F25 fault zone and the seasonal underground water volume increases,resulting in a large scale collapse.Through a series of simulation calculations,supporting measures are determined to ensure the smooth completion of the upper pressure shaft.The convergence monitoring of the collapse section after supporting shows that the deformation after supporting is slightly stable.In the process of excavation,a series of effective safety measures are taken to summarize,which has certain reference value for similar projects.
作者
赵建利
郝雪航
余洋
李鹏程
高华民
Zhao Jianli;Hao Xuehang;Yu Yang;Li Pengcheng;Gao Huamin(Zhongshui North Survey Design Research Co.,LTD,Tianjin 300222,China;Water Conservancy and Hydropower College Hehai University,Nanjing 210013,China;Cangzhou Municipal Remote Sensing and Intelligent Water Conservancy Technology Innovation Center,Hebei University of Water Resources and Electric Power,Cangzhou 061001,China;Shandong Xinhui Construction Group Co.,LTD,Dongying 257000,China)
出处
《黑龙江水利科技》
2024年第9期78-83,共6页
Heilongjiang Hydraulic Science and Technology
基金
河北省高等学校科学技术研究项目资助(BJ2021256)
教育部第二期供需对接就业育人项目(20230113517,20230113516)。
关键词
断层
上部压力竖井
塌方
支护
fault
upper pressure shaft
landslide
support
