摘要
基坑支护模型往往在计算假定的基础上建立,而依据计算假定建立的模型往往不能得到和实际相符的结果。但有限元软件可以较为真实的模拟基坑开挖的过程中应力和位移的变化情况,是土工数值分析的重要手段。本文运用大型有限元软件ABAQUS建立双排桩-锚杆结构有限元模型,全面的考虑土体的特性、桩土的共同作用及桩间土对支护结构的影响等因素,分析支护结构在土体开挖荷载作用下的内力和变形,为设计和施工提供了参考。
The foundation pit support model is usually modeled on the basis of calculation hypothesis,but sometimes can not tally with practical results.The finite element software can simulate stress and displacement variations during foundation pit excavation process and more authentic,thus an important means in geotechnical numerical analysis.The author has modeled double piles-anchor bolt structure finite element model using large-scale finite element software ABAQUS.The model has roundly considered soil mass characteristics,pile soil combined actions and impacts from soil between adjacent piles on support structure;analyzed support structure internal force and deformation under soil mass excavation unloading,thus provided references in design and construction.
出处
《中国煤炭地质》
2011年第11期49-51,共3页
Coal Geology of China
关键词
双排桩
锚杆
有限元
double piles
anchor bolt
finite element
