摘要
双江口水电站引水系统工程位于左岸,厂区岩体中地应力存在分带现象,在400 m处上升至37.82 MPa,为地应力增高带;引水隧洞局部接近40 MPa;同比白鹤滩水电站、锦屏Ⅰ级水电站、两河口水电站地区地应力,双江口水电站引水发电系统工程为国内所建工程地应力最高。要想使得本工程顺利进行,对岩爆段地下洞室进行安全高效开挖施工技术研究是洞室施工中比较关键的问题,进行此问题研究,可为同类工程提供实践经验。
The water diversion system of Shuangjiangkou Hydropower Station is located on the left bank.There is a zonation phenomenon in the rock mass of the powerhouse area,which rises to 37.82mpa at 400m,and is an increase zone of crustal stress.The local part of the water diversion tunnel is close to 40MPa.Compared with the crustal stress of Baihetan Hydropower Station,Jinping I Hydropower Station and Lianghekou Hydropower Station,the water diversion and power generation system of Shuangjiangkou Hydropower Station is the domestic project of highest crustal stress.In order to construct the project successfully,the relative key problem is to study the safe and efficient excavation technology of underground cavern in rock burst section.The study of this problem can provide practical experience for similar projects.
作者
和江涛
李鹏鑫
杨彬林
HE Jiangtao;LI Pengxin;YANG Binlin(China Gezhouba Group No.1 Engineering Co.,LTD,Yichang,Hubei,443002;Dadu River Co.,LTD,CHN Energy,Chengdu,Sichuan,610041)
出处
《四川水力发电》
2019年第S02期91-94,共4页
Sichuan Hydropower
关键词
地质条件
岩爆段
地下洞室
安全高效
开挖施工技术
geological condition
rock burst section
underground cavern
safe and efficient
excavation technology
