锚杆抗滑桩桩侧地层抗力分布模式的试验研究

介绍了锚杆抗滑桩系统桩侧地层抗力分布规律的室内模型试验成果，试验共分3组，其中2组在坡体后缘加载，第3组采用千斤顶直接在桩后加载，桩身上各贴有一定数量的土压力盒，用以测定作用于桩身上的地层抗力。从3组试验中得出了锚杆抗滑桩桩身的荷载分布图，分析这些荷载分布图可以看出，对于锚杆抗滑桩来说，其滑面以下桩身的地层抗力主要分布在桩前一侧，与普通悬臂式抗滑桩计算模型中采用的地层抗力主要分布在桩背一侧的模式是不同的。根据试验结果给出了锚杆抗滑桩系统桩侧地层抗力的3种分布模式，并给出了桩前滑面以下部分被动抗力值的大致范围。

Test research on strata resistance of pile side of anchor anti-slide pile

An indoor model test result of distribution regulation of strata resistance beside piles in the system of anchor anti-slide pile is introduced. In three test groups, two groups load on back of slope, the third one directly loads on the pile by jack. There are earth-pressure boxes on each pile to test the strata resistance. The distributing graphs of loading on the piles in the system is obtained from the tests. From the graphs, it is concluded that the strata resistance is focused on back of the piles. That is different from the anti-slide pile, in which the force is focused in front of the pile. Three distribution patterns of strata resistance beside piles in the system of anchor anti-slide pile and approximate scope for partial passive resistance values in front of the piles embedded the slide surface are given.