流砂、软土地质层钻孔灌注桩的施工控制

Bored Pile Construction Control at Quicksand and Soft Soil Layer

钻孔桩施工不仅工艺繁复,而且不便监视。正确选定成孔工艺和合理安排施工进度及工艺流程是钻孔桩施工成败的关键。针对流砂或软土层地质情况,采取相应的预防和控制措施,保证成孔质量,减少工程事故的发生,从而确保施工的顺利进行。

Bored pile construction technique is complex, it is inconvenient in supervision. The key factors in Pored pile construction are selecting technique exactly, arranging construction schedule and technique program rightly. The effective controlling measures must be adopted in bored pile construction at quicksand and soft soil layer, which can reducef engineering accidents and assure engi- neering quality.