基于降雨阈值建立TRIGRS模型对斜坡失稳区分级  

Classification of Slope Instability Zone by TRIGRS Model Based on Rainfall Threshold

作　　者：倪晓辉 NI Xiao-hui(Zhejiang ProvinceGeological&Mineral Engineering lnvestigation Institute Co.Ltd.,Hangzhou 310013,China)

机构地区：[1]浙江省地矿勘察院有限公司,杭州310013

出　　处：《工程建设与设计》2022年第16期11-13,共3页Construction & Design for Engineering

摘　　要：为了对斜坡的稳定性进行可视化分析和预测,论文以玲珑街道斜坡为例,结合数字高程模型TRIGRS,以及地形地貌、降雨等因素,运用降雨阈值模型对斜坡单元变形失稳所需的临界降雨量进行计算,并开展了斜坡失稳影响区及自然村庄适宜性分区评价;结合地质灾害防治规划,对自然村庄活宜性分区防治提出了建议。In order to carry out visual analysis and prediction of slope stability, this paper took Linglong street slope as an example,combined with digital elevation model TRIGRS, integrated landform, rainfall and other factors, used rainfall threshold model to calculate the critical rainfall required for slope unit deformation and instability, and carried out the suitability zoning evaluation of slope instability affected areas and natural villages. Combined with the planning of geological disaster prevention and control, some suggestions are put forward for the district prevention and control of natural villages.

关 键 词：降雨阈值 滑坡预测 斜坡失稳 

分 类 号：P642.22[天文地球—工程地质学]