粉喷桩围堰张拉提升处理塌孔新方法

New Method for Handling Drill Hole Collapse by Aid of Churning Pile Cofferdam and Jacking Equipment

介绍通过粉喷桩围堰,利用桁架以及张拉设备,张拉提升钻头、钻杆和塌孔倾斜的钢护筒,较好地处理塌孔埋钻事故,是一种行之有效的新方法。

This paper describes a method for lifting up drilling bit, drilling rod and inclined steel casing for the purpose of handling drill hole collapse by aid of churning pile cofferdam, steel truss and jacking equipment. The method herewith is new and quite effective.