温州世贸中心大厦超深大直径钻孔灌注桩施工技术

Quality Control for Extra-deep Large-diameter Borehole Cast-in-place Pile Construction in Wenzhou Trade Mansion

摘要:

介绍了温州世贸中心大厦120m超深大直径钻孔灌注桩的施工技术，针对超深大直径钻孔灌注桩施工中极易引起的钻进孔斜、卡钻、垮孔、堵管等问题，提出了相应的处理措施。

Abstract:

Borebole east-in-place pile technology is widely used in the treatment of soft soil and rock foundations. This article is intended to illustrate the construction technology applied in the 120m extra-deep large-diameter borebole east-in-place pile of Wenzbou World Trade Center Mansion, and to present relative measures taken for the problems easily encountered during the construction, such as skewing boring, sticking, breakdown, blocking, etc.