【摘要】 在分析前人研究的基础上,汇总分析了实体工程的监测数据,全面地对高填方涵洞路堤受力、变形机理进行了研究。通过绘制土压力随填土厚度变化曲线、同一层位压力盒压力对比曲线、应力集中系数K值随填土厚度变化曲线以及沉降变形图,判断出高填方路堤涵洞受力状况。结合试验路段的运营情况,分析得出了如何产生"土拱效应"以便于减小土体的沉降变形,从而保护涵洞结构的结论。更多还原

【Abstract】 On the basis of the theoretical analysis of previous researches,the monitoring data of one real project was collected and analyzed in this paper.And the stress and deformation principle of highly filled culvert embankment was studied comprehensively.The curves of earth pressure and stress concentration factor "K" with the filling thickness were plotted separately.The comparison curves of earth pressure in the same layer and the map of settlement with time were also presented.It can be drawn out that the highly filled culvert has better stress conditions with a large settlement in the middle and a small settlement on each side.How to form the "soil arching effect" was proposed by combining the operation of the tested road.This effect can reduce the soil settlement and protect the culvert structure.更多还原