挤土类桩的挤土效应及其防治方法

Prevention and Treatment of Squeezing Effects in Earth Squeezing Piles

挤土效应是所有挤土类桩面临的共同问题，它可能造成临近建筑物破坏，地下管线断裂，道路隆起以及工程质量事故。依据挤土类桩挤土效应的形成机理，结合工程实例，提出了减少挤土效应的措施，如预钻排水孔、开挖防挤沟、设置观测点、控制压桩速度等措施，并根据施工地区不同的环境条件提出了合理的压桩顺序。

Squeezing effects are all earth squeezing piling faced common problem, it can destroy neighboring structures, underground pipeline breaking, road upheaving and engineering quality accident. Based on forming mechanics of squeezing effects, combined with project examples, thus reducing measures were put forward. Such as water drain hole drilling, squeezing prevention ditch digging, observation point setting, squeezing rate controlling, according to different area different environment put forward rational pile squeezing sequences.