挖孔桩穿越流砂土层的成孔技术

Hole Formation Technology of Hole Digging Pile into Drift Sand Layer

挖孔桩在建设工程中的普遍运用,有时候却因为遇到复杂地质处理不当导致施工困难,该文意在介绍挖孔桩施工过程中,遇到流砂地质情况时,可以采用改变护壁构造、固化土层、护筒沉井等施工措施穿越过软土层,以确保挖孔桩施工的顺利进行。

Hole digging pile has been widely applied in construction engineering, but it sometimes may encounter difficulties because of inappropriate treatment in complex geological conditions. Some construction measures like changing breast wall structure, reinforcing soil layer and implementing protecting tube caisson are introduced, which can be adopted in hole digging pile construction process under drift sand conditions so as to ensure the smooth advancing of hole digging pile construction.