摘要
为了深入研究深基坑开挖中不平衡堆载作用下支护结构的内力和变形,运用岩土工程有限元软件PLAXIS模拟了不平衡堆载下深基坑开挖全过程。计算结果表明,在不平衡堆载情况下,基坑两侧围护结构内力、位移都存在较大差异,在设计时需要分别考虑支护结构参数。同时,通过大量工况的计算比较,定性地总结出了一些基本规律,为不平衡堆载作用下基坑支护结构的设计提供有益的参考。
PLAXIS is adopted to simulate the mechanical behavior and deformation of retaining structure for foundation pit in excavating process.In order to reveal the deformation and internal force of surporting structures,the different heaped loads are considered.The analytical results show that there are great differences between the mechanical behavior and deformation of surporting structures on both sides with the same design parameters.So it is necessary to calculate and analyse surporting structures two sides separately while designing the unbalanced foundation pit.Meanwhile,some conclusions are drawn on performance of supporting structures and deformation of foundation pits through the calculation and comparison.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2010年第8期2592-2598,共7页
Rock and Soil Mechanics
关键词
PLAXIS
基坑开挖
不平衡堆载
内力
位移
PLAXIS
excavation
unbalanced heaped load
internal force
displacement
作者简介
林刚，男，1985年生，硕士研究生，主要从事基坑工程方面的研究。
