OGS软件在地质灾害监测预警系统中的应用  

The Application of OpenGeoSys Software in the Geological Disaster Monitoring and Forecast System

作　　者：丁靖洋[1] 

机构地区：[1]北京市地质工程勘察院,北京100048

出　　处：《城市地质》2017年第3期81-86,共6页Urban Geology

基　　金：北京市优秀人才资助项目(2016400617931G171)

摘　　要：地质灾害对交通网络线性工程的安全性构成重大威胁。本文依托于"京张铁路(居庸关隧道进口段)地质安全监测示范工程"项目,以一处堆渣体为研究对象,基于有效应力原理、Mohr-Coulomb屈服准则、Richard-flow非饱和渗流方程,采用OGS软件对降雨入渗条件下的流固耦合过程进行数值模拟。研究结果表明,随着降雨强度的不断增加,堆渣体上部土体的有效饱和度逐渐增大,地灾发生区域开始出现并相互贯通,这将为地质安全预警提供依据。Geological disaster is of great treat for the linear project of transportation network. Based on the demonstration project of “Geological Safety Monitoring of Beijing-Zhangjiakou Railway （entrance of Juyong Pass tunnel ）”, the fuid-solid coupling process of a slag heap under the condition of rainfall infltration is researched with the help of OpenGeoSys software, also the theories of effective stress, yield criterion of Mohr-Coulomb and Richard-fow equations. The results show that, for the slag heap, the effective saturation of the upper soil increases with the increase of rainfall intensity, also the area of geological disaster is appeared and joined. It provides a basis for the geological safety forecast.

关 键 词：地质灾害预警 降雨入渗 流固耦合 OGS数值模拟 

分 类 号：P694[天文地球—地质学]