华南地震2023，Vol.43Issue(4)：80-86,7.DOI:10.13512/j.hndz.2023.04.11
集镇地质灾害易发性分区研究——以梅州市大埔县银江镇为例
Study on Susceptibility Zoning of Geological Hazards in Town Area—Taking Yinjiang Town,Dapu County,Meizhou City as an Example
摘要
Abstract
Based on the geological hazard exploration data of Yinjiang Town,Dabu County,Meizhou City,combined with the geological environment conditions of typical mountainous and hilly areas in Guangdong Province,eight factors,such as point density,area density,volume density,slope,rock and soil type,fracture density,annual rainfall and human engineering activity intensity of geological hazard points are selected to establish the index system of geological hazard susceptibility zoning in towns.The comprehensive susceptibility index of geological hazards of 833 basic evaluation units(0.5 km×0.5 km)is calculated by using the comprehensive index method on the GIS platform,and the geological hazard susceptibility zoning of Yinjiang Town is carried out accordingly.The research results show that the geological hazard zoning in Yinjiang Town are mainly medium and high susceptibility areas,accounting for 36.63%and 36.67%of the total area respectively,and the number of disaster points in high susceptibility areas accounts for 74.08%of the total.The research results can provide a basic geological basis for reasonably reducing the harmfulness and risk of geological hazards in Yinjiang Town.关键词
地质灾害/易发性/综合指数法/集镇/粤东地区Key words
Geological hazard/Susceptibility/Comprehensive index method/Town/Eastern Guangdong分类
天文与地球科学引用本文复制引用
邱锦安,邓志德,刘燕辉,金炯球,张杰,童纪伟,谢润培,梅伟标,黄宗万..集镇地质灾害易发性分区研究——以梅州市大埔县银江镇为例[J].华南地震,2023,43(4):80-86,7.基金项目
广东省大埔县银江镇地质灾害勘查(1:10000)项目(0835-200Z22802231) （1:10000）
全省地质灾害风险普查(1:25万)项目(0835-220Z52802171) （1:25万）
广东省地质灾害应急抢险技术能力提升研究项目(0809-2140GDC35071) （0809-2140GDC35071）
广东省重大突发地质灾害应急监测预警与处置技术研究项目(2022025)联合资助. （2022025）
