基于层次分析—模糊综合评价法的徐州市岩溶塌陷易发性评价  

Susceptibility zoning and mapping of karst collapse in Xuzhou using analytic hierarchy process-fuzzy comprehensive evaluation method

作　　者：武鑫[1] 黄敬军[1] 缪世贤[1] 

机构地区：[1]江苏省地质调查研究院/国土资源部地裂缝地质灾害重点实验室,南京210018

出　　处：《中国岩溶》2017年第6期836-841,共6页Carsologica Sinica

基　　金：徐州城市地质调查;中国地质调查局"徐州地区岩溶塌陷调查"(12120114022001);中国地质调查项目(DD20160254)

摘　　要：为定量评价城市岩溶塌陷灾害,在详细分析徐州市地质条件的基础上,选取了岩溶发育程度、覆盖层条件、水动力条件等8个致灾因子,运用层析分析-模糊综合评价法对研究区岩溶塌陷易发程度进行评价,得到徐州市岩溶塌陷易发程度分区图。研究结果表明:徐州市岩溶塌陷易发程度分为高易发、中易发、低易发、不易发共4个等级。高易发区主要位于市区溶剂厂-新生街一带及张集水源地邓楼水厂-梁堂水厂一带。区内岩溶水水位长期在基岩面附近波动是诱发岩溶塌陷的主要因素,因此在岩溶塌陷高易发区内应加强对岩溶地下水的开采控制,建立岩溶塌陷监测预警系统,预防岩溶塌陷的发生。In order to quantitatively evaluate urban karst collapse disaster, based on detailed analysis of the geological conditions, the karst collapse susceptibility in Xuzhou City was evaluated by using eight disaster indicators such as the degree of karst development, covering layer lithology, hydrodynamic condition and etc. By applying the method of analytic hierarchy process-fuzzy comprehensive evaluation,the susceptibility zoning and mapping of karst collapse assessment in the study area was achieved. Results show that the karst collapse grade of Xuzhou can be presented by four categories of susceptibility including high, medium, low and no. The regions which have high karst collapse grade are mainly located in the Solvent factory-Xinsheng street and Denglou water plants-Liangtang water plants in Zhangji water source. The karst water fluctuates near the bedrock surface for a long time, which leading to the karst collapses. So in high collapse prone districts, we should strengthen the exploitation of karst groundwater control, establish karst subsidence monitoring and early warning system and prevent the happening of the karst collapse.

关 键 词：岩溶塌陷 层次分析-模糊综合评价 易发性分区 徐州市 

分 类 号：P642.26[天文地球—工程地质学]