Application of rotary drilling occlusive pile in excavation engineering

Combined with the traditional drilling occlusive pile and casing drilling technology of rotary drilling rig, a new enclosure structure construction method—rotary drilling occlusive pile has formed. The rotary drilling occlusive pile has all the advantages of the traditional drilling occlusive pile, that is, fast construction speed, low cost, small occupied space. Based on the engineering example, the principle, construction technology, construction techniques and measures to deal with the accident of rotary drilling occlusive pile are introduced. The practice shows that the rotary drilling occlusive pile as a new enclosure structure construction method is reasonable and feasible.