This paper shows that it is important to construction and safety of deep foundation pit to simulate the property of seepage and piping and get the law of watertable and ground settlement by numerical method.

• 本文的工作表明,利用数值方法分析深基坑渗流及管涌特性,获得降水渗流和管涌对坑外水位和地表沉降的影响规律,对于深基坑工程的安全性评价和工程施工都具有重要的指导意义。