期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：304
期号：5
页码：1-7
DOI：10.1088/1755-1315/304/5/052047
出版社：IOP Publishing
摘要：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%.
