研究结论：监测发现，距打桩施工区的水平距离越近，受挤土效应的影响越大，超孔隙水压力累计增长量越大；深度越深，超孔隙水压力累计增长量越大。通过对超孔隙水压力及深层土体位移的监测，合理调整了桩基施工的速率和施工工序。管桩的挤土效应比较明显，位移主方向是打桩前进的相反方向。采取提前偏移措施投放桩位，可以减少打桩施工对已完成桩位的影响。在需要控制土体位移量的区域，严格控制打桩速度和打桩方向，同时采取跳打工艺，可以有效降低打桩的挤土效应。

Research conclusions: The monitoring result proved that the distance to the pilling area Was shorter and the effect of soil squeezing was bigger，the accumulated growth of super pore water pressure Was bigger．The depth WasS deeper，and the accumulated growth of super pore water pressure was bigger．By the monitoring of the super pore water pressure and the displacement of deep soil body，the construction speed and sequence were adjusted for the pile base construction．The soil squeezing of pipe pile Was obvious because the main direction of displacement was the reverse direction to the pilling．Therefore，before the placing of pile，the measure of deviation was taken to minimize the influence of the piling against to the existed pile．In the area where needs to control the soil body dispacement，the piling speed and the direction weFe strictly controlled，and at the same time，skip—piling technique was used to effectively reduce the soil squeezing by piling．