摘要
根据坝区工程地质条件,分析了影响地区岩体质量的控制因素,即岩石性质、岩体结构及其赋存条件三方面,并具体用岩石单轴饱和抗压强度R、岩体结构系数T、岩体完整性系统Kv和岩体透水性系数Wk表征,提出了反映坝区地质条件的总体质量指数Z(Z—RTKvWk)分级系统,将坝区岩体共分五大级A亚级,据分级结果将坝肩可利用岩体范围进行了研究及判别。
Analysis shows that controlling factors affecting rock-mass engineering geological quality of damsite are rock's property, rock-mass structure, and their existing condition.They are expressed as rock uniaxial compressive strength R, coefficients T, Kv,op of rock-mass structure, integrity and perviousness. We put forward that index Z of rock-mass quality classification (Z=R T Kv ωk) and classify the rockmass into 5 degrees and 8 secondary degrees. According to these cassification results, we determine the range of rock-mass near dam abutment at different levels.
出处
《水力发电学报》
CSCD
北大核心
1996年第2期71-85,共15页
Journal of Hydroelectric Engineering
基金
国家自然科学基金
优秀中青年人才专项基金
关键词
水电站
岩体结构
质量分级
评价
Rock's property Structure Quality classification