复杂地形抗滑桩加固滑坡段高填方路基施工技术研究

Research on Construction Technology of High-Fill Roadbed Reinforced with Anti-Slide Piles in Complex Terrain

针对复杂地形条件下不同施工参数对抗滑桩性能的影响,本文依托实际工程,对滑坡段处治技术进行了研究与改进。首先,在边坡位置施工地表设置临时排水设施,在滑坡体上方打设17m仰斜式排水管,降低施工过程中滑坡体受地表和地下水的影响;其次,采用加强钢筋笼、冲击锤钻孔等成套技术进行抗滑桩施工;最后,路堤填筑完毕后,在滑坡体下方打设23m仰斜式排水管,有效提高了抗滑桩的加固效果。

In view of the infuence of diferent construction parameters on the perfommance of anti-side pile under complex terrin conditions,this paper studies and improves the treatment technology of landslide section based on actual engineering project.Firstly,temporary surface drainage facilities shall be constructed at the slope position,and 17m inclined drainage pipe shall be set above the landslide mass to reduce the impact of the surface and groundwater on the landslide mass during construction.Secondly,a complete set of technologies such as reinforcing seel cage and impact hammer driling are used for the construction of ant-slide piles.Finally,after the embankment is fled,23m inclined drainage pipe is set under the landslide mass,which flectively improves the reinforcement effect of anti-slide pile.