中文摘要：

目前对用抗滑桩整治边坡段隧道以及对抗滑桩工作性能的研究较多,但对降雨和桩-隧间距差异对隧道-边坡稳定的影响研究较少。为研究降雨及桩-隧间距对抗滑桩受力及隧道变形的影响,分别采用桩-隧间距为80,160 cm的埋入式抗滑桩布置于滑体主滑段,通过模拟不同强度降雨,以研究降雨及桩-隧间距对隧道变形、抗滑桩桩头变形的影响。试验表明：1）小雨阶段,雨水渗入浅层滑体,桩-隧间距差异对抗滑桩受力分布及桩头位移变化影响不大;2）中—大雨阶段,雨水逐渐渗入到深层滑体,动水压增大,下滑力较快增大,桩-隧间距差异对抗滑桩受力影响较大,较小的桩-隧间距,不利于坡体的稳定。3）从隧道变形曲线来看,隧道山侧应变比河侧应变要大,且桩-隧间距为80 cm的隧道应变比160 cm段的应变大。

英文摘要：

At present, there are many researches on the treatment of the slope tunnel with the anti-slide piles and the behavior of anti-slide piles, but the research on influence spacing of the rainfall and the difference spacing between the pile and the tunnel on the stability of the tunnel is less. In order to study the influence of rainfall and pile tunnel spacing on the force on the anti-slide pile and the deformation of tunnel, the arrangement of anti-slide pile was applied with pile-tunnel spacing of 80 cm and 160 cm, arranged on main sliding section of the sliding body. The study showed： 1）At the stage of light rain, the rain infiltrated into shallow slide body, the differences pile-tunnel spacing had less effect on sliding pile stress distribution and change in displacement of pile head; 2） At the stage of moderate rain to heavy rain stage, the rain gradually infiltrated into deep sliding body, the dynamic water pressure increased, the sliding force increased rapidly, and the difference spacing between pile and tunnel had great influence on the force of sliding pile. There was a rapider change in the top displacement for the anti-sliding pile with smaller tunnel pile-tunnel spacing, a small pile-tunnel spacing was unfavorable to the slope stability ; 3 ） The strain of tunnel near the mountain was bigger than that near the river, and the strain of the tunnel with 80 cm space between pile and tunnel was larger than that of tunnel with 160 cm space.