围岩质量分级的模糊综合评判研究  

Research on Fuzzy Synthetic Evaluation of Surrounding Rock Quality Classification

作　　者：徐波[1] 任光明[1] 刘应龙[1] 熊靖辉[1] 

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都610059

出　　处：《中国煤炭地质》2009年第1期43-44,58,共3页Coal Geology of China

摘　　要：岩体本身具有许多不确定性和随机性,围岩质量分级取决于许多因素。选择岩石单轴饱和抗压强度Rc、岩体完整程度(RQD)、平均节理裂隙间距d、不连续面状态系数f、结构面方位Ф以及地下水状态ω六个指标,采用模糊数学方法,引入模糊数学隶属函数的概念,建立边坡岩体质量综合评判模型,并将其应用于黄河上游某电站引水隧洞围岩岩体质量评价。评判结果显示,该模型使用模糊综合评价的评价结果与现场定性判断及报告中RMR分类结果基本一致。Rock mass quality classification is an important link in the hydropower engineering project foundation works,and is the basis of underground cavern stability evaluation, design and supporting construction. Considering randomness and uncertainty of influence factor of surrounding rock mass quality classification ,this article introduces the concept of subordinate function, establishes fuzzy synthetic evaluation model. Then the authors use the model in surrounding rock mass classification of water diversion tunnel in a hydropower station on the upper Yellow River. The results show that it is more accurate and scientific in the surrounding rock quality classification with the fuzzy synthetic evaluation method, and give a more convincing reference about the underground cavern stability evaluation and project processing.

关 键 词：地下洞室 岩体质量 模糊评判模型 隶属度原则 

分 类 号：P642.3[天文地球—工程地质学]