人民黄河2015，Vol.37Issue(12)：103-105,3.DOI:10.3969/j.issn.1000-1379.2015.12.027
沙土填埋下拱涵顶部土压力系数数值计算
Research of Soil Pressure Coefficient in Sandy Soil at the Top of Arch Culvert
摘要
Abstract
The experiment was designed with orthogonal analysis method which is researched for the soil pressure coefficient at the top of the arch culvert filled by the common sand in northern China and it was researched through the finite element analysis software.Research result shows that in filling factors, internal friction angle of the influence to the soil pressure coefficient is the largest, elastic modulus of the influence is the second, Poisson′s ratio of the influence is the smallest; with the increase of angle, the coefficient increase also, but the growth rate is slower and slower;with the increase of elastic modulus, the coefficient shows the tendency of growth first and decrease later;the coefficients appear the trend of increase with the increase of the Poisson's ratio, and when Poisson's ratio is between 0.30 and 0.32, the rising trend is most obvious.关键词
有限元分析/泊松比/半圆拱涵/沙土指标/土压力系数Key words
finite element analysis/Poisson′s ratio/arch culvert/sand index/soil pressure coefficient分类
建筑与水利引用本文复制引用
程奇云,李永刚..沙土填埋下拱涵顶部土压力系数数值计算[J].人民黄河,2015,37(12):103-105,3.基金项目
山西省自然科学基金重点项目(2012011025-2). （2012011025-2）
