基于岩体质量分级的地下矿山巷道支护设计  

Roadway Support Design in Underground Mine Based on Rock Mass Quality Classification

作　　者：吴峰 张海云 方前程[3] Wu Feng;ZHANG Haiyun;FANG Qiuncheng(Guangdong Metallurgical Architectural Design and Research Institute Co.,Ltd,Guangzhou»Guangdong 510080,China;Changsha Institute of Mining Research Co.,Ltd,Changsha,Hunan 410012,China;Institute of Architecture and Engineering,Huanghuai University,Zhumadian,Henan 463000,China)

机构地区：[1]广东省冶金建筑设计研究院有限公司,广东广州510080 [2]长沙矿山研究院有限责任公司,湖南长沙4101012 [3]黄淮学院建筑工程学院,河南驻马店市463000

出　　处：《矿业研究与开发》2021年第6期84-88,共5页Mining Research and Development

基　　金：河南省科技攻关项目(172102310742);河南省高等学校重点科研项目(16A120015)。

摘　　要：为提高岩体质量分级精准度,引入可拓理论,构建了基于博弈论-可拓理论的岩体质量综合评价模型,首先,选取RQD等6个指标建立了岩体质量综合评价指标体系,其次,采用G1法和熵权法分别确定指标主观权重和客观权重,并基于博弈论计算指标综合权重,通过计算综合关联度确定分级等级;最后,将所建立的模型应用到某地下矿山巷道岩体质量评估中。结果表明,该模型评估结果合理可靠,具有很强的适用性。基于岩体质量分级结果,进行支护方案设计,并采用FLAC3D对支护方案进行模拟,结果显示重新设计的支护方案能有效控制围岩变形,获得了满意效果。In order to improve the classification accuracy of rock mass quality, a comprehensive evaluation model of rock mass quality was built based on game theory and extension theory. Firstly, six indexes such as RQD were selected to establish a comprehensive evaluation index system of rock mass quality. Secondly, G1 method and entropy weight method were used to determine the subjective weight and objective weight of each index respectively, and the comprehensive weight of each index was calculated based on game theory. Then, the classification levels were determined by calculating comprehensive correlation degree. Finally, the model was applied to the evaluation of the surrounding rock quality of an underground mine roadway. It is found that the evaluation results of the model are reasonable, reliable and applicable. Based on the results of rock mass quality classification, the support scheme is designed, and FLAC3D is used to simulate the support scheme. The results show that the support can effectively control the deformation of surrounding rock, and satisfactory effect has been obtained.

关 键 词：巷道支护 岩体质量分级 G1法 熵权法 博弈论 

分 类 号：TD353+.41[矿业工程—矿井建设] TU457[建筑科学—岩土工程]