摘要
根据工程岩体质量分级的相关理论,采用模糊数学方法,建立综合评判模型,研究矿山工程岩体所属级别。选取岩体抗压强度、岩石质量指标RQD、节理间距、节理条件、地下水条件、节理裂隙走向影响这6个关键因素作为评判指标,定量因素和定性因素分别采用数值特征分析方法和模糊统计方法来确定其隶属函数,并采用因素比较矩阵分析法来确定6个因素的权重,建立模糊综合评判模型判定围岩等级。对某金矿围岩质量进行评价,研究结果与现场工程实际吻合,说明该评价方法处理围岩分级这种带有主观性和模糊性的问题是合理、科学的。
According to the correlative theories of engineering rock mass classification, and adopting the fuzzy mathematics,a comprehensive evaluation model was established, and the quality classifications of rock mass in mine were researched. Selecting six key factors as the assessment parameters, which are rock compressive strength, rock quality designation （ROD）,joint spacing,joint condition, groundwater conditions and strike joint influence. Numeric feature analysis method and fuzzy statistical method were applied to determine membership function of quantitative factors and qualitative factors, and comparison matrix analysis method was applied to determine the weighting of each factor. The model of fuzzy synthesis assessment to determine the grade of surrounding rock was set up. Evaluating the quality grade of surrounding rock in a gold mine,the results show that the experimental conclusions are consistent with the accrual cases. It is reasona- ble and scientific to apply this evaluation method to solve the grade issues of surrounding rock,which have the characters of subjectivity and fuzziness.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2014年第1期129-134,共6页
Journal of Wuhan University of Technology
基金
国家科技支撑计划(2013BAB02B05
2012BAB08B01)
中南大学教师基金(2013JSJJ029)
关键词
围岩
岩体质量分级
模糊数学
模糊综合评判法
surrounding rock
rock-mass quality classification
fuzzy mathematics
fuzzy synthesis assessment method
