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在码头附近打桩,由于桩对土的挤压作用引起较高的孔隙水压力和土体的侧向移动,常常导致码头桩的断裂,甚至边坡的失稳。这种现象值得注意。由于目前尚无法通过理论计算,所以只能采用施工监测来控制。本文实录了在上海一码头附近打桩时,于码头防汛墙产生的水平位移。并根据该工程的具体情况,对打桩的距离、打桩的流水、打桩的速率等因素对水平位移的影响进行讨论。
Piling near the pier, due to the piles of soil compression caused by the high pore water pressure and lateral movement of the soil, often leads to the pier pier cracks, and even the slope instability. This phenomenon is noteworthy. Due to the current can not be calculated by theory, it can only be used to control the construction monitoring. This paper records the horizontal displacement of the flood wall in the wharf when piling around a quay in Shanghai. And according to the specific circumstances of the project, the influence of horizontal displacement such as the distance of piling, the flow of piling and the rate of piling is discussed.