长江科学院院报2017，Vol.34Issue(6)：128-131,4.DOI:10.11988/ckyyb.20160184
白鹤滩水电站左岸坝基柱状节理开挖松弛特性试验研究
Characteristics of Excavation-induced Relaxation of Columnar Jointed Basalt in the Left Bank Dam Foundation of Baihetan Hydropower Station
柯传芳 1于胜利1
作者信息
- 1. 中国长江三峡集团公司中国三峡建设管理有限公司,成都610000
- 折叠
摘要
Abstract
Columnar jointed basalt rock masses are exposed and easily relaxed on the left bank dam foundation of Baihetan hydropower station,posing large influence on the safety and stability of slope.In the aim of obtaining the variation rule and development trend,the relaxation depth of columnar jointed basalt in different areas under various support conditions was detected using acoustic detection technology.The area at elevation 650-660m of the dam foundation slope was selected as the test area.According to detection results,the relaxation depth of the columnar jointed basalt is affected by geological condition;pre-stressed anchor could prevent the rock mass from relaxation by compacting it,and the effect is better than that of mortar anchor.关键词
白鹤滩水电站/柱状节理/开挖松弛特性/声波检测/预应力锚杆Key words
Baihetan hydropower station/columnar jointed/excavation-induced relaxation/acoustic wave detection/pre-stressed anchor分类
建筑与水利引用本文复制引用
柯传芳,于胜利..白鹤滩水电站左岸坝基柱状节理开挖松弛特性试验研究[J].长江科学院院报,2017,34(6):128-131,4.
