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通过对铁路路堤式及路肩式加筋土挡墙的墙面板水平土压力、墙后土中垂直土压力及加筋材料变形的现场原位试验,得到了两种加筋土挡墙面板水平土压力、墙后土中垂直土压力、拉筋材料变形的变化规律,并对两种挡墙的破裂面进行了探讨。两种加筋土挡墙的面板水平土压力沿墙高均呈曲线型分布;墙后土中实测垂直土压力与理论值的差别随距墙面板距离的增加而线性增大;同一层拉筋变形的平均值随墙高增大而线性增大;列车运行荷载对面板水平土压力及墙后土体的垂直土压力和拉筋的变形影响均较小。
Through the in situ tests on the horizontal pressure of the wall panels, the vertical earth pressure in the soil behind the wall and the deformation of the reinforced material of the railway embankment and the shoulder reinforced earth retaining wall, two kinds of reinforced earth retaining wall panels Pressure, the vertical earth pressure in the soil behind the wall, the deformation of the brace material, and the rupture planes of the two retaining walls were discussed. The horizontal soil pressure of the two kinds of reinforced earth retaining walls shows a curvilinear distribution along the height of the wall. The difference between the measured vertical earth pressure and the theoretical value in the soil behind the wall increases linearly with the increase of the distance from the wall panel. The mean value of deformation increases linearly with the increase of wall height. The train load does not affect the horizontal pressure of the panel and the vertical earth pressure of the soil behind the wall and the deformation of the brace.