大同市地质灾害的分区

文章分析了大同市地质灾害的形成条件、地质灾害的类型与发育特征,以及地质灾害的分布及发育规律。分析表明,大同市地质灾害的分布和发育主要与地形地貌、地层岩性、地质构造、灾害点密度、大气降水和人类不合理的工程活动共同作用有关。就此用模糊数学综合评判的方法进行分区,划分出地质灾害高易发区、中易发区、低易发区,并依据分区结果提出地质灾害的防治对策。

Zoning of the Geological hazards in Datong City, Shanxi Province

This article analyzed the forming conditions, the types and the development characteristics, and the distribution and developmental mechanism of the geological disasters in Datong City. The analysis indicated that, the distribution and development of geological disasters in Datong City are mainly related to the terrain landform, the stratum rock, the geological structure, the disaster spot density, the atmospheric precipitation and the unreasonable human engineering activities. Then, a comprehensive criteria of fuzzy mathematics was used for the geological disasters zoning, dividing it into three zones: extremely easy happening area to happening area, and hardly happening area. Finally, prevention countermeasures were put forward according to the zoning results.