摘要
桂林地区的混合土以其独特的地区特征、复杂的工程力学性质而引起许多学者的注意,由于没有适合桂林地区混合土力学性质规范,因此对桂林地区混合土承载力的研究是很有必要的。结合工程实例,对桂林市混合土地基进行研究,由于静力载荷试验的承压板和实际的基础尺寸存在一定的差距,因此合理地得出静载试验曲线主要取决于建筑物的允许变形值和当地经验。并通过FLAC3D对静载试验进行模拟,与现场静载试验的结果对比分析,现场试验和数值模拟得到的地基载荷试验变化规律基本一致,曲线基本吻合,得出利用FLAC3D有限差分软件模拟地基荷载试验是合理的。
The red clay and gravel mixed soils in Guilin area have the unique geotechnical properties and these soils attract the attentions from both researchers and practitioners.Currently,there are no code established for the red clay and gravel mixed soils in Guilin,it is necessary to perform bearing capacity studies for these soils form the engineering application point f view.This paper presents a case study of plate loading test results on red clay and gravel mixed soils in Guilin.There are differences in between the dimension of the plate in the static loading tests and the actual footing widths,the bearing capacity of the actual foundation should be empirically adjusted from the static loading test results.A numerical simulation using a commercial finite element software FLAC3Don the plate static loading tests was performed.The numerical analysis results are consistent with the loading test results.
作者
苏阳
杜赐阳
刘之葵
SU Yang;DU Ciyang;LIU Zhikui(Guilin University of Technology,Guilin 541004)
出处
《土工基础》
2019年第4期455-459,共5页
Soil Engineering and Foundation
基金
国家自然科学基金项目(41867039)
广西自然科学基金项目(2017GXNSFAA198238)
广西岩土力学与工程重点实验室基金项目(2015-A-01)
关键词
混合土
地基承载力
静载试验
荷载—沉降曲线
FLAC3D
red clay and gravel mixed soils
bearing capacity of soils
static plate loading tests
load-settlement curves
FLAC3D analysis
