摘要
岩土体的物理力学参数及地下水位差异是地下连续墙力学性能的主要影响因素。采用FLAC3D流-固耦合分析模块,模拟分析边坡土体弹性模量、内聚力及地下水位等因素对地下连续墙受力弯矩和位移等变形特征的影响。研究结果表明:相比边坡土体内聚力,弹性模量与排水疏干程度是墙体受力弯矩与内力的主要影响因素。在保持边坡稳定前提下,边坡含水能够有效减少墙体的弯矩及位移。设置地下连续墙后,边坡止水效果明显,并且能够保持稳定。
The mechanical parameters of rock and soil as well as the differences in underground water levels are two major factors for the mechanical properties of diaphragm wall.The FLAC3Dfluid-solid coupling module was applied to simulate and analyze the bending moment and deformation characteristics of diaphragm wall under different conditions of elastic modulus of soil bulk,cohesion and underground water levels.The research showed that the elastic modulus of the soil and the drainage dewatering of the slope were the major factors impacted on the bending moment and displacement of diaphragm wall compared to the cohesion.Under stable slope,the underground water of slope was benefit to the diaphragm wall.After building the diaphragm wall,the effect was obvious on shutting off underground water and remaining the slope stable.
出处
《矿业研究与开发》
CAS
北大核心
2015年第6期49-53,共5页
Mining Research and Development
关键词
地下连续墙
边坡稳定性分析
变形特性
流-固耦合
Diaphragm wall,Analysis of slope stability,Deformation properties,Fluid-solid coupling characteristics
