锦屏二级水电站1#引水隧洞绿泥石片岩洞段处理技术与应用 / Technology for treatment of chlorite schist section in No.1 diversion tunnel of Jinping Ⅱ Hydropower Station and its application
- Resource Type
- Academic Journal
- Authors
- 杨进忠; 杨培洲; 曾雄辉; 王继敏; YANG Jinzhong; YANG Peizhou; ZENG Xionghui; WANG Jimin
- Source
- 水利水电技术 / Water Resources and Hydropower Engineering. 46(4):87-92
- Subject
- 引水隧洞
绿泥石片岩
开挖支护
细水泥灌浆
锦屏二级水电站
diversion tunnel
chlorite schist
excavation and support
fine cement grouting
Jinping Ⅱ Hydropower Station
- Language
- Chinese
- ISSN
- 1000-0860
针对锦屏二级水电站1 #引水隧洞绿泥石片岩洞段施工期间出现塌方、围岩变形松弛、初期支护围岩变形收敛缓慢、普通水泥固结灌浆无法达到设计要求等技术难题,及时调整优化设计参数和施工方案,采取了二次扩挖、超前支护、加强系统支护、钢拱架支护、锚索支护、细水泥灌浆等综合工程措施,成功地解决了绿泥石片岩软岩洞段围岩抗变形稳定问题.