人民长江Issue(14)：1-3,35,4.DOI:10.16232/j.cnki.1001-4179.2015.14.001
乌东德水电站地下厂房主要工程地质问题研究
Study on engineering geological problems of underground powerhouses of Wudongde Hydropower Station
肖云华 1黄孝泉 1刘冲平 1翁金望 1郝喜明1
作者信息
- 1. 长江三峡勘测研究院有限公司 武汉，湖北 武汉430074
- 折叠
摘要
Abstract
Since the powerhouses of Wudongde Hydropower Station are located in hard medium-bedded limestone and dolo-mite with a high dip, the following engineering geological characteristics can be found:long span, high side walls, medium bed with a deep angle, low geostatic stress and a low included angle. During the excavation, eight engineering geological problems are revealed and summarized, including:deformation and instability of the high side walls caused by the low included angle between the strike line of the rock bed and the axis of the powerhouses;instability of the surrounding rock caused by relatively low com-pressive strength and deformation modulus of the Class B breccia;deformation and instability of the carbonaceous membrane zone on the top of the bed caused by the low integrity of the rock;instability of the blocks over the vault of the powerhouses caused by the long and large low-angle fissures;deformation and chipping of some parts of the vault caused by the short and small low an-gle fissure zone;deformation and instability of some parts of the side walls caused by the low included angle as well as the long and large fissures;the karst cave problem. According to these problems, targeted countermeasures can be adopted in the design phase of the project.关键词
地下厂房/中厚层陡倾角灰岩及白云岩/低地应力/小夹角/乌东德水电站Key words
underground powerhouses/medium-bedded limestone and dolomite with a high dip/low geostatic stress/low in-cluded angle/Wudongde Hydropower Station分类
天文与地球科学引用本文复制引用
肖云华,黄孝泉,刘冲平,翁金望,郝喜明..乌东德水电站地下厂房主要工程地质问题研究[J].人民长江,2015,(14):1-3,35,4.
