考虑不同填土参数的高填土涵洞土压力分布研究

Research on Earth Pressure Distribution of High Earth Fill Culvert Under Different Parameter of Earth Filling

为了得出高填土涵洞土压力的分布以及填土土性参数的不同对其分布的影响,采用模型试验和数值模拟相结合的方法,得出附加应力和土拱效应共同作用综合决定高填土涵洞土压力的分布。通过数值模拟得出填土参数对土压力分布的影响,同时与模型试验结果对比验证,两者得出的结果趋同。

In order to get the comditions of earth pressure distribution of high earth fill culvert and the influence of different parameter of earth fill on its distribution, the paper draws the applied stress and the effect of earth arch jointly decide the distribution of earth pressure of high earth fill culvert. It obtains still an influence of earth fill parameter on earth pressure distribution by numerical value simulation, simultaneously verified it by contrast to resuits of model test. Both results are trend to identification.