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基于综合指数法的泰莱盆地岩溶塌陷风险性评价
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引用本文:吴亚楠,王延岭,周绍智,唐丽伟,焦玉国.基于综合指数法的泰莱盆地岩溶塌陷风险性评价[J].中国岩溶,2020,(3):391-399. WU Yanan,WANG Yanling,ZHOU Shaozhi,TANG Liwei,JIAO Yuguo.Risk assessment of karst collapse in the Tailai basin based on the synthetic index method[J].Carsologica Sinica,2020,(3):391-399.
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吴亚楠 山东省第五地质矿产勘查院山东 泰安 271000/山东省地矿局岩溶塌陷防治重点实验室山东 泰安 271000 
王延岭 山东省第五地质矿产勘查院山东 泰安 271000/山东省地矿局岩溶塌陷防治重点实验室山东 泰安 271000 
周绍智 山东省第五地质矿产勘查院山东 泰安 271000/山东省地矿局岩溶塌陷防治重点实验室山东 泰安 271000 
唐丽伟 山东省第五地质矿产勘查院山东 泰安 271000/山东省地矿局岩溶塌陷防治重点实验室山东 泰安 271000 
焦玉国 山东省第五地质矿产勘查院山东 泰安 271000/山东省地矿局岩溶塌陷防治重点实验室山东 泰安 271000 
基金项目:山东省地矿局水工环项目(鲁地字2016[93]号);山东省地矿局科技创新项目(鲁地字2019[34]号)
中文摘要:泰莱盆地岩溶地面塌陷始发于20世纪60年代,至今岩溶塌陷地质灾害仍不断发生,造成了日趋严重的经济损失和社会影响。本文将泰莱盆地作为整体研究对象,在对工作区地质环境条件进行充分分析的基础上,选取了包括岩溶塌陷影响因子及能反应社会影响的易损因子(包括灾损敏感因子和抗损强度因子)在内的共计12项指标作为岩溶塌陷评价要素,建立了研究区风险性评价体系;然后,利用层次分析法(AHP)计算各评价要素的权重,结合已有资料绘制各指标分级图并分别赋值;最后,利用MAPGIS软件叠加计算风险性指标,依据风险性分级标准进行研究区岩溶塌陷风险性评价分级区划。结果表明:高风险区主要分布在泰安市城区火车站、訾家灌庄、东羊娄—旧县一带;莱芜市大王庄镇孤山—后枯河及铁矿区孟公清、泉河一带,这些区域多位于水源地周边或矿山企业排水区,高强度的抽排地下水是岩溶塌陷发生的最主要的致塌因素。
中文关键词:岩溶塌陷  风险性评价  综合指数法  泰莱盆地
 
Risk assessment of karst collapse in the Tailai basin based on the synthetic index method
Abstract:The karst collapse in the Tailai basin began in the 1960s, which has caused increasingly serious economic losses and social impacts. Based on the analysis of the geological conditions, 12 indexes were selected as the assessment factors, including karst collapse influencing factors and social vulnerability factors, thus to establish a risk evaluation system. Then, the weight of each assessment element was calculated using the AHP method, and the classification diagram of each index was drawn and assigned separately. Finally, the risk index was calculated using MAPGIS software, and the risk classification of karst collapse was made according to the criteria. The results show that high-risk areas are mainly distributed in the following areas, (1) Taian City,urban railway station, Zijiaguanzhuang, Dongyang-Jiuxian; (2) Laiwu City, Gushan-Kuhe area of Dawangzhuang Town, and Menggongqing-Quanhe of the iron mining area. These areas are mostly around the water source area or the drainage areas of mining enterprises, where high-intensity pumping groundwater is the most important factor causing karst collapse.
keywords:karst collapse, risk evaluation, synthetic index method, Tailai basin
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