摘要
通过对Monte-Carlo随机有限元和系统可靠度计算的β分支法的研究分析,考虑把二者联合起来分析洞室施工过程安全性,提出了一种大型地下洞室开挖过程中可靠度评价的方法。以海南工程为例,对地下洞室开挖过程中的每一步进行可靠性评价,分析比较了多层耦合法与分层逆作法之间洞室施工过程中的稳定性,比较了二者的优缺点。从而对多层耦合法施工有一个全面的了解和比较,为今后的大型洞室快速施工提供科学依据。
Through analyzing the Monte Carlo random finite element and the system reliability method of β embranchment method, we consider to combine the two theories, and then a reliability analysis method is proposed to use in the process of underground caverns excavation. The method for evaluating the big cavern reliability in construction has researched. Taking the Hainan project for example, we analyze the every excavation step, and compare the two methods＇ shortcomings and merits. So we can get a full knowledge about the several layers excavating method so as to provide reference for the fast excavating.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2007年第11期2415-2420,共6页
Rock and Soil Mechanics
关键词
多层耦合
分层逆做
Monte—Carlo随机有限元
β分支法
可靠度
地下大型洞室
several layers excavating
layer by layer excavating
Monte Carlo random finite element
β embranchment method
reliability
sensitivity
large underground cavern
