摘要
采用FLAC3D数值模拟的方法探讨土质不同对地基压缩层厚度的影响.分别对均质土地基及双层土地基建立模型,观察荷载作用下地基压缩层厚度的变化规律,得出对于均质土体,在相同荷载作用下,当土的压缩模量越大,土的压缩层厚度越小;对于上软下硬土体,下部硬土层的存在会减小土体的压缩层厚度;对于上硬下软土体,下部软土层的存在会增加土体的压缩层厚度.
This paper explores the influnce on the thickness of compressed layer under different soils by numerical simulation, establishes two models of homogeneous foundation and layered foundation, observes the changing rules of thickness of compressed layer,and draws a conclusion that the larger the compression modulusis, the smaller the compressed layer thickness is when the loading is the same. For the layered foundation in which the upper soil is softer than the lower soil, the existence of the lower part will reduce the thickness of the compression; for the layered foundation in which the upper soil is harder than the lower soil, the existence of the lower part will increase the thickness of the compression.
出处
《河北建筑工程学院学报》
CAS
2009年第1期12-14,21,共4页
Journal of Hebei Institute of Architecture and Civil Engineering
关键词
压缩模量
压缩层厚度
FLAC3D
compression modulus
thickness of compressed layer
FLAC3D
