中国地质调查2016,Vol.3Issue(3):55-61,7.
北京市门头沟区某公路岩质边坡稳定性分级研究
Stability classification of rock slopes along a highway in Mentougou,Beijing
摘要
Abstract
The rock slopes,along a highway in Mentougou,Beijing,have characteristics as follows:huge a-mounts of 1 1 3 ,complicated influencing factors,large difficulty to gain mechanical parameters of all slopes,so it is hard to investigate the mechanical properties for large member of slopes.Analytic multilayer process and fuzzy comprehensive evaluation are used to classify the slope stability in this paper.Two-layer and four primary influen-cing factors including nine secondary influencing factors are chosen to evaluate the slope stability according to the influencing factors of slope stability.Firstly,the stability classification is divided into 4 grades:stable,basically stable,less unstable,and unstable.Secondly,membership matrix and weight matrix are constructed.Lastly,sta-bility of every slope is classified by the fuzzy comprehensive evaluation.The results indicate that the number of unstable slopes is 3 ,3% of all slopes;the number of less unstable slopes is 27 ,24% of all slopes;the number of basically stable slopes is 52,46% of all slopes;the number of stable slopes is 31 ,27% of all slopes.If the number of slopes is huge,boundary conditions are not clear and influencing factors are complicated,fuzzy comprehensive evaluation is an eligible method.It should be noted that the validity of the maximum subordination principle should be evaluated based on the effect of every factors on slope stability in case the evaluation fails.关键词
公路岩质边坡/层次分析/模糊综合评价/稳定性分级/北京门头沟Key words
highway rock slope/analytic multilayer evaluation/fuzzy comprehensive evaluation/stability classification/Mentougou,Beijing分类
天文与地球科学引用本文复制引用
郭松峰,祁生文,李星星,邹宇,廖海军,张世殊..北京市门头沟区某公路岩质边坡稳定性分级研究[J].中国地质调查,2016,3(3):55-61,7.基金项目
国家自然科学基金项目(编号41322020,41172272)和中国博士后基金项目(编号2015M581167)联合资助。 ()