加筋水泥土锚桩(LXK)技术在基坑支护中的应用

在基坑开挖过程中极易因过大的侧向土压力而发生基坑支护变形，从而导致支护体系失稳，因此选择合理的方式降低侧向土压力是提高基坑支护稳定的有效途径。针对珠海横琴地区固结度低、含水率高的土体，采用LXK工法桩对基坑进行支护，土体的固结度明显提高，土体的侧向土压力降低，同时基坑侧壁与后方土体形成稳定的整体，不易受外界变化而扰动，有效解决了软弱土质中基坑支护难的问题。

Application of LXK method pile technology in foundation pit support

During excavation of the foundation pit,due to the excessive lateral soil pressure,foundation pit deformation easily occurs,which leads to the instability of the support system.Therefore,selecting a reasonable way to reduce the lateral earth pressure is effective for improving the stability of the foundation pit support.For the soil with high consolidation and low water content in Hengqin area of Zhuhai,LXK method pile is used to support the foundation pit.After the soil outside the foundation pit is treated by the LXK method pile,the consolidation degree of the soil body improves obviously,and the lateral earth pressure decreases.Meanwhile,the sidewall of the foundation pit and the rear soil form a stable whole,which is not easily disturbed by external changes,so the difficulty of foundation pit support in soft soil is solved effectively.