断续节理作用的Interface模型及工程应用  

Interface model of intermittent joints and its application to engineering

作　　者：张强勇[1] 孙爱花[2] 朱维申[1] 

机构地区：[1]山东大学岩土与结构工程研究中心,济南250061 [2]山东建筑大学土木工程学院,济南250101

出　　处：《岩土力学》2006年第S1期17-21,共5页Rock and Soil Mechanics

摘　　要：断续节理是影响地下洞室围岩稳定的重要因素,要有效反映其影响提出 Interface 界面模型模拟断续节理的力学效应。以二滩水电工程大型地下洞室群为背景,对主厂房开挖考虑与不考虑断续节理作用进行了多种地应力工况的数值计算与分析,获得了主厂房洞周在断续节理影响下的位移场和塑性区分布规律,为大型地下工程围岩稳定分析提供了有益的参考。Intermittent joints are important factors affecting stability of surrounding rockmass.In order to reflect their influence, based on large-sized underground chambers of Ertan Hydropower Project,an interface model is established to simulate mechanical effect of intermittent joints.Taking into account intermittent joint action or not,we have carded out numerical computation analysis for the main opening under various geostress and got some changing laws of displacement field and plastic zone around opening, which provide some useful reference for stability analysis of large sized underground engineering.

关 键 词：断续节理 Interface模型 围岩稳定 数值计算与分析 

分 类 号：TV221.2[水利工程—水工结构工程]