复杂地形及重荷条件下深基坑支护施工技术研究

Research on Construction Technology of Deep Foundation Excavation Support Under Complex Topography and Heavy Load Conditions

针对紧邻发射塔、地形地物条件复杂、变形指标苛刻等条件下,提出了深基坑的支护设计方案,研究了冲击成孔支护桩+混凝土冠梁、喷锚、钢支撑和锚索逐层安装等基坑支护的施工技术,确保导流槽基坑安全,满足紧邻建筑物严格的变形要求,为导流槽的新建提供了安全稳定的环境。

Under conditions of close proximity to the launch tower,complex terrain conditions and hash deformation indexes,the support design scheme of deep foundation excavation is proposed,the impact perforated supporting pile,foundation excavation support of concrete crown beam,shotcrete anchor,steel support and cable installation layer by layer is studied.It ensure that the foundation excavation of the diversion channel is safe and meet the strict deformation requirements of the adjacent building,it provides a safe and stable environment for the new channel.