谈桩承式路堤中土拱效应的研究现状

Discussion on the present situation of soil arch effect in pile plane

桩承式路堤具有稳定性好、经济效益高等特点,在国内外的实际工程中得到越来越广泛的应用。当桩承式路堤中的桩及桩帽作用于软土层时,桩间会形成土拱,因此桩承式路堤的设计必须考虑到土拱效应的作用。从理论研究、试验研究、数值模拟角度出发,对前人基于桩承式路堤中土拱效应的研究成果进行总结,提出研究展望,为今后土拱效应的研究提供参考。

Pile bearing embankment has the characteristics of good stability and high economic efficiency, and has been widely used in practical projects at home and abroad. When the pile and the pile cap in the pile embankment act on the soft soil layer, earth arches will form between the piles. Therefore, the design of the pile embankment must take into account the effect of soil arch effect. Based on theoretical research, experimental research and numerical simulation, this paper summarizes the results of previous researches on soil arch effect based on pile-bearing embankment, and puts forward research prospects for future research on soil arch effect.