摘要
小溶江水利枢纽坝址区的岩体局部裂隙发育或破碎,形成漏水通道,致使部分钻孔段无法进行物探声波测井,测孔率低,从而影响地质判断;通过改进工作方法,利用泥浆堵塞岩体裂隙或破碎带,使灌水时孔内水位能上升,测试孔段加长,提高了测孔率。
There exist local developed fissure and crushing in the rock mass at the dam site area of Xiaorongjiang hydro complex. The leakage channel lead to failure of geophysical prospecting by sound wave logging at some boring sections. Low drill hole ratio renders a negative influence on geological assessment. By improving working method, blocking rock mass fissure or fractured belt by mud, enabling water level in drill hole to rise when filling water, the actual length of test hole can extend and drill hole ratio is improved.
出处
《广西水利水电》
2004年第4期13-14,共2页
Guangxi Water Resources & Hydropower Engineering
