西南交通大学学报2018，Vol.53Issue(3)：565-573,9.DOI:10.3969/j.issn.0258-2724.2018.03.018
地下岩溶发育程度评价体系的初步探讨
Preliminary Study of Assessment System for Subsurface Karst Development Degree
摘要
Abstract
An attempt was made to establish an assessment system for subsurface karst development by combining quantitative and qualitative methods. The assessment results can assist the preliminary determination of the extent of underground karst development and guide the planning and construction of underground engineering projects. Firstly,the major factors influencing the karst development were selected as the assessment indices in the system,and the varying degrees of subsurface karst development are defined. Then,the weights of these assessment indices were determined using a synthetic weighting method,in which the fuzzy hierarchy analytic process determines the qualitative weights,while the quantitative weights were determined by a sensitivity analysis of the Bayesian belief network. The Fuzzy Analytic Hierarchy Process was used to determine the ratings of the karst development states in the assessment indices. Moreover,based on the statistical data,the quantitative assessment results belonging to each degree of karst development were determined by comparing the calculated assessment results with the real karst development status. The proposed assessment system was applied to a railway tunnelling project in China to evaluate the degree of surface karst development before tunnel construction. A comparative analysis of the assessment results with the recorded results shows that the assessment of the tunnel zone,accounting for 97.1% of the total tunnel length,is consistent with the recorded results. Assessment errors only occur in 2.9% of the tunnel zone,where the degree of karst development was assigned as"developed",while the records indicated it was"extremely developed". However,the quantitative assessment result of the karst development degree is 0.69,which is close to the value range of"extremely developed",0.70-1.00. As this minor error is acceptable in the preliminary assessment of the degree of karst development,the proposed assessment system is verifiably reliable.关键词
地下岩溶发育程度/综合赋权法/模糊层次分析法/贝叶斯网络Key words
subsurface karst development degree/synthetic weighting method/Fuzzy Analytic Hierarchy Process/Bayesian Belief Network分类
建筑与水利引用本文复制引用
张凯,霍晓龙,陈寿根,涂鹏,谭信荣..地下岩溶发育程度评价体系的初步探讨[J].西南交通大学学报,2018,53(3):565-573,9.基金项目
中央高校基本科研业务费专项资金资助项目(SWJTU11ZT33) （SWJTU11ZT33）
教育部创新团队发展计划资助项目(IRT0955) （IRT0955）
