基于组合赋权-TOPSIS的地下岩体质量评价  

Quality evaluation of underground rock mass based on combination weighted-TOPSIS

作　　者：徐鹏飞 郑克勋 韩啸 钟国华 王森林 XU Pengfei;ZHENG Kexun;HAN Xiao;ZHONG Guohua;WANG Senlin(Geotechnical Engineering Co.,Ltd.,Guiyang Survey,Design and Research Institute of Sinohydro Consulting Group,Guiyang 550081,China;POWERCHINA Corporation Guiyang Survey,Design and Research Institute Co.,Ltd.,Guiyang 550081,China)

机构地区：[1]中国水电顾问集团贵阳勘测设计研究院岩土工程有限公司,贵州贵阳550081 [2]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550081

出　　处：《水利水电快报》2025年第2期37-45,共9页Express Water Resources & Hydropower Information

基　　金：贵州省科技支撑计划“岩溶洼地建库地下水气作用机理及工程灾变防控关键技术研究”(黔科合支撑[2022]一般212);贵州省科技计划项目“山地型压缩空气储能地下储气库建设关键技术”(黔科合平台人才[2021]5635号)。

摘　　要：岩体质量的优劣直接影响工程的施工,正确合理评价岩体质量,对于地下工程设计至关重要。取岩体的岩石质量指标(RQD)、岩石单轴饱和抗压强度(R_(W))、岩体完整性系数(K_(v))、结构面强度系数(K_(f))和地下水渗水量(ω)等5个指标,再结合AHP主观赋权法(指标的重要性程度大小)和CRITIC客观赋权法(指标间相关性程度和信息量大小)的优点,将两种方法确定的主观和客观权重依据最小熵原理进行组合,得到最优组合权重,以此建立组合赋权-TOPSIS岩体质量综合评价分类模型。将该模型应用于济源市蟒河口水库进行验证,结果表明:与单一法确定的AHP-TOPSIS评价模型、CRITIC-TOPSIS评价模型的评价结果相比,组合赋权-TOPSIS评价模型的可靠度和准确性最佳。研究成果表明将该方法应用于地下工程岩体质量评价是可行的,具有一定的工程实用价值。The quality of the rock mass directly impacts the construction of projects.Assessing the quality of rock mass accurately and reasonably is crucial for underground engineering design.This paper primarily focuses on Rock Quality Index(RQD),Uniaxial Saturated Compressive Strength(R_(w)),Rock Integrity Coefficient(K_(v)),Structural Surface Strength Coefficient(K_(f)),and Groundwater Seepage(ω)five indicators.By combining the advantages of both subjective weighting method AHP(importance degree of indicators)and objective weighting method CRITIC(correlation degree and information amount between indicators),we combined the subjective and objective weights determined by these two methods using the principle of minimum entropy to obtain an optimal combined weight.Subsequently,a combined weighted-TOPSIS comprehensive evaluation classification model for rock mass quality was established.The model was applied to Manghekou Reservoir in Jiyuan City for verification.The results showed by comparing the evaluation results of AHP-TOPSIS evaluation model and CRITIC-TOPSIS evaluation model determined by a single method,the reliability and accuracy of the combined weighted-TOPSIS evaluation model were fully verified to be the best.The method is feasible to evaluate the quality of underground engineering rock mass and has certain engineering practical value.

关 键 词：岩体质量评价 层次分析法 CRITIC法 TOPSIS 组合赋权 

分 类 号：TV221.2[水利工程—水工结构工程]