边坡变形FLAC3D模型的预测研究与应用——以贵州省道坪镇火闹山边坡为例

Research and application of slope deformation FLAC3D model:a case study on the Huonaoshan slope in Daoping Town,Guizhou Province

边坡岩土体受到持续强降雨的影响,原有的平衡状态被打破,进而产生变形。因此,根据边坡的变形规律,预测其发生发展的趋势,有重要的实际意义。本文以贵州省道坪镇火闹山边坡工程项目为研究对象,对边坡岩体的物理、力学参数等指标进行分析,采用FLAC3D软件建立三维模型,对不同状态下的边坡变形情况进行数字模拟。研究结果表明,在边坡初始变形到边坡失稳阶段,建立的模型与实际监测结果反映的变化规律是相符合的,达到对边坡变形的预测要求。

The slope rock and soil bodies are affected by continuous heavy rainfall,which will break the original balance state,resulting in deformation.Therefore,it is of great practical significance to predict the development trend of the deformation of the slope.This paper takes the Huonaoshan slope project in Daoping Town,Guizhou Province as the research object,analyzes the physical and mechanical parameters of the slope rock mass,establishes the 3D model with FLAC3D software,and simulates the slope deformation under different conditions.The research results show that from the initial deformation state to the instable state,the established model is in accord with the change rules obtained by actual monitoring,and meets the requirements for the prediction of slope deformation.