大直径工法桩在深基坑中的应用

Application of Large Diameter Construction Method Pile in Deep Foundation Pit

结合某大型深基坑,针对远期有下穿轨道的特殊情况,应用了直径1000 mm SMW工法桩技术,分析了大直径SMW工法桩的受力及变形,并通过实际监测的检验,对其在经济性和技术性上的优缺点进行了论证,对工法受限区域的深基坑支护形式推广有重要意义。

In combination with a large deep foundation pit,the 1000 mm SMW construction method pile technology is applied to the special situation of long-term track underpassing.The stress and deformation of the large-diameter SMW construction method pile are analyzed.The economic and technical advantages and disadvantages are demonstrated,which is of great significance to promotion of deep foundation pit support in areas with restricted construction methods.