水利水电技术2011，Vol.42Issue(3)：61-65,5.
锦屏二级水电站引水隧洞工程强岩爆综合防治措施研究
Study on comprehensive measures for control of heavy rockburst during construction of diversion tunnel for Jinping Hydropower Station II
张鹏 1曾新华 1李现臣 1李元1
作者信息
- 1. 二滩水电开发有限责任公司,四川成都,610021
- 折叠
摘要
Abstract
The buried depths of the diversion tunnels for Jinping Hydropower Station Ⅱ are usually 1 500 ～ 2 000 m with the maximum depth of 2 525 m, therefore, the tunnels have to be excavated under the conditions of possible heavy rockbursts and a number of rockbursts have been actually happened therein since the start of the excavations. In order to lower the impact from rockburst on safety and progress of construction maximally, the control measures such as micro-seismic monitoring, blasting stress relieving, pre-stressed hollow pouring anchor rod, water swelling anchor rod, steel-wire-like nano-fiber concrete, etc. are adopted during the construction of the tunnels in accordance with the experiences from the construction of the auxiliary tunnel and discharge tunnel. All the measures are not only comprehensively applied to the areas of hydropower and traffic development projects for the first time, but certain achievements from them are also obtained.关键词
锦屏二级水电站/引水隧洞/岩爆/防治措施分类
建筑与水利引用本文复制引用
张鹏,曾新华,李现臣,李元..锦屏二级水电站引水隧洞工程强岩爆综合防治措施研究[J].水利水电技术,2011,42(3):61-65,5.
