福建宁德鹤峰中路滑坡失稳机制及数值模拟分析  

Instability Mechanism and Numerical Simulation Analysis of the Landslide in Hefeng Middle Road,Ningde City,Fujian Province

作　　者：黄朝阳[1] Huang Chaoyang(No.4 Geological Party of Fujian Province,Ningde,352100)

机构地区：[1]福建省第四地质大队,宁德352100

出　　处：《福建地质》2025年第1期52-60,共9页Geology of Fujian

摘　　要：为解决鹤峰中路滑坡治理失稳问题,通过分析研究区岩土体特征、降雨工况条件以及现场验证,研究认为滑坡目前处于明显蠕滑阶段,破坏形式主要为后缘下错推挤、中部受压挤裂、前缘鼓胀。同时,该滑坡的数值稳定性验算结果表明:在天然条件下,滑坡前缘处于欠稳定状态;在降雨条件下,滑坡后缘位移加剧,整体处于不稳定状态,且模拟滑动面与现场观测结果基本一致,可为类似滑坡治理工程提供参考依据。In order to solve the instability problem of the landslide treatment in Hefeng Middle Road,through the analysis of rock and soil mass characteristics,rainfall conditions and field verification,the research shows that the landslide is in obvious creep stage.The failure mode is mainly the trailing edge push,the middle compression crack and the leading edge bulging.At the same time,the numerical stability calculation results of the landslide show that the front edge of the landslide is in an unstable state under natural conditions.Under the condition of rainfall,the displacement of the trailing edge of the landslide is intensified,and the whole is in an unstable state,and the simulated sliding surface is basically consistent with the field observation results.This study provides engineering reference for similar landslide control projects.

关 键 词：滑坡 失稳机制 数值模拟 治理措施 福建宁德 

分 类 号：P642.22[天文地球—工程地质学]