高压引水隧洞灌浆技术研究  

Study on Grouting Technology of High Pressure Water Diversion Tunnel

作　　者：魏彦军[1] 杨柳[1] 

机构地区：[1]吉林省水利水电勘测设计研究院,吉林长春130021

出　　处：《吉林水利》2017年第3期8-11,共4页Jilin Water Resources

摘　　要：云南万家口子水电站工程高压引水隧洞最大静水头154.55m,洞身走线中间处有一断层出露。隧洞开挖过程中,在外水压力作用下,洞室围岩存在涌水和渗透破坏,部分洞段小断层及岩溶发育。针对不同围岩段和衬砌方式,合理选择灌浆工艺、灌浆参数,有效提高围岩抗劈裂强度和防渗性能,解决地质缺陷问题。High pressure headrace tunnel of Wanjiakouzi Hydropower Station in Yunnan,which maximum stat- ic head is 154.55m,and at the center of the hole body go line where is a fault exposed.In the process of tunnel excavation which in the external water pressure,presence of water gushing and surrounding rock permeability damage,in some areas, small faults and karsts development.According to different surrounding rock and lining, choose the grouting process and grouting parameters, so as to improve the splitting strength and anti-seepage performance of the surrounding rock effectively, and solve the problem of geological defects.

关 键 词：高压隧洞 回填灌浆 固结灌浆 接触灌浆 

分 类 号：TV732.3[水利工程—水利水电工程]