钻孔抗滑桩技术在徐家山滑坡治理中的应用

Application of Drilling Anti-slide Pile in Landslide Control in Xujiashan

为探讨钻孔抗滑桩技术在公路边坡滑坡治理中的应用,结合徐家山滑坡实际案例,立足滑坡治理设计,分析了钻孔抗滑桩技术的应用要点。结果表明,常规抗滑桩施工时多采用插打方式,此种施工方式虽然方便、快捷,但对边坡稳定性会造成较大影响,不利于维护边坡稳定。在徐家山公路边坡滑坡治理中,采用钻孔抗滑桩施工技术,在保证施工质量以及边坡稳定性的基础上,完成边坡钻孔、钢筋笼下放、混凝土灌注等施工的重点、难点。通过严格测量放线,选择合适的钻孔设备和施工工艺,解决了钻孔抗滑桩施工中存在的问题,并顺利完成了抗滑桩施工任务,边坡监测数据达到设计及规范的要求,公路边坡治理稳定可靠。

In order to discuss the application of drilled anti-slide pile technology in highway slope landslide treatment,combined with the actual case of Xujiashan landslide,based on the landslide treatment design,the application points of drilled anti-slide pile technology are analyzed.The results show that conventional anti-slide pile construction mainly uses inserting method,which is convenient and fast in constructing,but is not conducive to the maintenance of slope stability due to its great impact on slope stability.In the slope landslide treatment of Xujiashan Highway,the drilling anti-slide pile construction technology is used and the constructing difficulties as slope drilling,steel-cage placement and concrete pouring are completed on the basis of ensuring construction quality and slope stability.Through strict measurement and setting-off,the selection of appropriate drilling equipment and construction technology,the problems existing in the construction of drilling anti-slide pile are solved,and the task of anti-slide pile construction is successfully completed.The slope monitoring data meet the requirements of the design and specification,and the highway slope governance is stable and reliable.