摘要
在综合分析岩溶塌陷特点及其影响因素的基础上,参考大量实例及专家意见,结合模糊贴近度理论,建立了岩溶塌陷易发性评价模型。在模型的建立过程中,讨论了岩溶塌陷评价指标隶属度的计算,使用层次分析法确定了各评价指标的权重。以武山铜矿区上屋周地段岩溶塌陷评价为实例,利用模型分别对该地段目前和1994年的岩溶塌陷易发性进行了评价,并进行了对比,评价结果与实际情况基本一致。利用武山铜矿区多个已发生岩溶塌陷的地段对方法进行了验证,并对整个碳酸岩覆盖区域进行评价,均表明该评价模型效果良好。所提基于模糊贴近度的岩溶塌陷易发性评价模型原理直观,计算方法简单、快速、实用,为岩溶塌陷易发性评价提供了新的思路和方法。
Based on analyzing major afecting factors of karst collapse and collecting a great deal of instances and expertises, we established a model to make an assessment of the occurrence of karst collapse by using fuzzy approach degree theory. The weighing of every assessment index will be defined by AHP. The occurrence of karst collapse in a section of Wushan copper mineral area was evaluated by using this model. The model was validated by many instances. These application instances explain that the evaluation result is credible, and the characteristics of the evaluation model are simple, fast and practical. This evaluation model based on fuzzy aporoach degree theory has favorable application value, so this paper offers a new method to evaluate the occurrence of karst collapse.
出处
《自然灾害学报》
CSCD
北大核心
2009年第1期8-13,共6页
Journal of Natural Disasters
基金
国家自然科学基金资助项目(40572157)
高等学校博士点专项科研基金资助项目(20050697013)
