土木工程与管理学报Issue(2)：8-12,5.
高填方涵洞涵顶土压力影响因素敏感性分析
Orthogonal Polar Difference Analysis for Sensitivity of the Factors Influencing the Earth Pressures on High Embankment Culvert
摘要
Abstract
The earth pressure of high embankment culvert is influenced by many internal and external factors. Based on the induction of factors influence the earth pressure on high embankment culvert, the valley width, slope angle, substrate soil modulus, modulus, cohesion and internal friction angle of embankment fill are screened out as the 6 main influencing factors. The variations of coefficient of earth pressure on the crown of culvert are analyzed via numerical simulation, and the range of the factors have effective influence on the earth pressure are determined. According to the principle of orthogonal test, 25 numerical models are installed for the analysis of the sensitivity of influence factors on the earth pressures on high embankment culvert. The results show that, the width and slope angle of the trench are the most important and sensitive factors for the earth pressures on the crown of the high embankment culvert. The modulus and friction angle of the backfill, as well as the subgrade modulus have secondary significant effect on the earth pressure. However the cohesion of the backfill has little effect on the earth pressure.关键词
高填方涵洞/土压力系数/影响因素/敏感性分析/正交试验Key words
high embankment culvert/the coefficient of earth pressure/influencing factor/sensitivity analysis/orthogonal test分类
交通工程引用本文复制引用
马强,朱健,肖衡林..高填方涵洞涵顶土压力影响因素敏感性分析[J].土木工程与管理学报,2015,(2):8-12,5.基金项目
国家自然科学基金(51208187) （51208187）
黄土地区公路建设与养护技术交通行业重点实验室开放课题(KLTLR-Y12-11) （KLTLR-Y12-11）
