滑坡预报与有限元实例分析对比研究  

Comparative Study of Landslide Forecasting and Finite Element Case Analysis

作　　者：曹伟 陈仲如 CAO Wei;CHEN Zhongru(Southwest Survey and Planning Institute of National Forestry and Grassland Administration,650031,Kunming,PRC)

机构地区：[1]国家林业和草原局西南调查规划院,昆明650031

出　　处：《江西科学》2023年第4期794-799,807,共7页Jiangxi Science

摘　　要：为对滑坡的分析预报工作总结一套行之有效的方法,以三峡库区内滑坡Ⅰ为例展开研究。采用基于有限元原理的ABAQUS软件及摩尔库伦本构模型,建立三维地质模型并进行各工况下数值模拟计算。运用MATLAB自编程序滑坡预测集成系统对滑坡既有监测数据进行分析与预测。最后,将数值模拟计算结果、实际监测数据及预测结果进行对比分析,结果显示该分析预报方法具有较好的可靠性和实用性。对滑坡稳定性及流固耦合分析具有积极作用,对滑坡预测及其他领域的预测预报研究也具有广泛的参考意义。In order to summarize a set of effective methods for the analysis and forecasting of landslides,landslideⅠin the Three Gorges Reservoir area is taken as an example.Based on the finite element theory of ABAQUS software and the Moll Coulomb constitutive model are used.The threedimensional geological model is established,and the numerical simulation is carried out under various working conditions.Then,the landslide prediction integrated system programmed by MATLAB is used to analyze and forecast landslideⅠ.Finally,the numerical simulation results,actual monitoring data and prediction results are compared and analyzed.The analysis and prediction method is proved to be reliable and practical by these conclusions.This paper plays an active role in landslide stability and fluid-structure coupling analysis.At the same time,this paper also has extensive reference significance for landslide prediction and prediction research in other fields.

关 键 词：涉水滑坡 监测预报 有限元模拟 稳定性分析 

分 类 号：P642[天文地球—工程地质学]