Analysis on the Variation Rule of Aperture of the Normal Circulation Bored Pile. Issue 5 (September 2019)

• Record Type: Journal Article
• Authors: Wu, Yan; Wang, Yibo; Liu, Lan; Gao, Wenlong
• Is Part Of: IOP conference series. Volume 304:Issue 5(2019)
• Publication Date: 2019-09
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/304/5/052047
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: The hole formation is the most important link in the construction of bored piles. The quality of the hole formation plays a decisive role in the bearing capacity of cast-in-place piles. Combined with the field measurement data of hole formation in Changzhou Science And Technology Financial Center, combined with the time factor and the buried depth factor, the pore diameter change was analyzed. At the same time, the monitoring data was compared and analyzed by means of numerical simulation. The results show that the stress releases and the pore diameter decreases with the change of depth. With the increase of time, the pore size decreases. Due to the influence of soil structure, the pore diameter shrinkage of silty sand layer is up to 12.5%, while the silty clay layer is generally relatively small, with the maximum value not exceeding 6.25%.