相邻建筑深基坑双层单排桩组合支护技术应用

Application of Combined Support Technology of Double Single Row Piles in Adjacent Deep Foundation Pit

为了确保相邻建筑物间深基坑施工的安全,以某紧邻已实施基坑的基坑工程为例,对以支护桩工艺解决相邻建筑物间深基坑施工安全问题进行探讨,采用砂卵石地层内大倾角预应力锚索、双单排桩对穿锚索等施工工艺,提升双层单排桩组合支护的稳定性,通过监测确认支护体系的安全可靠。

In order to ensure the safety of deep foundation pit construction between adjacent buildings with the support pile technology,taking a fundation pit project close to the implemented foundation pit as an example,discusses how to solve the safety problems of deep fundation pit construction between adjacent buildings by supporting pile technology,the stability of the combined support of double single row piles is improved by using the construction techniques such as large angle prestressed anchor cables in the sandy gravel stratum,double single row piles crossing anchor cables,etc,and the safety and reliability of the support system is confirmed through observing.