摘要
分析湖南省湘潭县茶恩寺镇地质环境条件,探究该镇地质灾害发育特征.采用易发程度指数法,选取灾害点密度、斜坡坡度、岩土体结构类型、地质构造(断层)、降雨量、植被覆盖率、人类工程活动强度7个主要影响因素作为评价因子,对集镇地质灾害易发性进行评价及分区.评价的结果与实际情况较为吻合.通过易发性评价分区,可以为该地区的危险性评价和风险评价提供依据,为地质灾害的防治和管控提供指导.
Abstract
The geological environment conditions of Chaensi Town,Xiangtan County,Hunan Province is analyzed,and the development characteristics of geological hazards in the town is studied.Adopting the susceptibility index method,seven main influencing factors are selected as the evaluation factors,including disaster site density,slope slope,rock and soil structure type,geological structure(fault),rainfall,vegetation coverage and intensity of human engineering activities the susceptibility and zoning of geological disasters in the market town are evaluated.The evaluation results are consistent with the actual situation.Through the prone assessment zoning,it can better provide a basis for risk assessment and risk assessment in the area,and provide guidance for the prevention and control of geological disasters.
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