缓倾顺层岩质滑坡中抗滑桩受力分布规律

Research on force distribution of anti-slide piles in low-angle rock bedding landslides

在总结抗滑桩加固顺层岩质滑坡室内模型试验实测试验资料的基础上,研究得出抗滑桩桩身弯矩的分布关系,锁口桩桩桩身最大弯矩出现在滑面附近,钢管桩桩身弯矩存在反弯点,桩身上半部分弯矩为负,下半部分弯矩为正,抗滑桩桩后压力最大值出现在距桩顶15 cm处,桩顶及滑面处压力接近零.在总结抗滑桩桩身受力分布规律的基础上,提出缓倾顺层岩质滑坡防治技术的一些建议,为此类研究提供参考.

Indoor physical model test studies of slightly dipping rock slides are seldom seen in current literature. Based on a study of test results from anti-slide pile strengthening of the moderately dipping rock slides, the internal force distribution of the anti-slide pile was revealed. The result showed that the maximum bending moment always appeared in the vicini.ty of the sliding surface along the pile, that convert points of bending moment existed, and that the bending moment in the upper part was negative while that of the lower part was positive. Maximum post-pile pressure appeared at a distance of 15 cm to the top of the pile, yet the pressure on the top and and the slide surface was insignificant. Some recommendations were summarized based on the above findings, which could provide certain references for related research.