文献类型：期刊文献

英文题名：Estimation on Pile Driving Resistance and Soil Plug Evolution Mechanism of the Small-bore Steel Jacked Pipe Pile in Silt Foundation

作者：Feng, Hong-wei[1]

第一作者：冯红卫

通讯作者：Feng, HW[1]

机构：[1]Xinxiang Univ, Sch Civil Engn & Architecture, Xinxiang 453000, Henan, Peoples R China

第一机构：新乡学院土木工程与建筑学院

通讯机构：[1]corresponding author), Xinxiang Univ, Sch Civil Engn & Architecture, Xinxiang 453000, Henan, Peoples R China.|[1107114]新乡学院土木工程与建筑学院;[11071]新乡学院;

年份：2016

卷号：21

期号：9

起止页码：2949-2961

外文期刊名：ELECTRONIC JOURNAL OF GEOTECHNICAL ENGINEERING

收录：WOS:【ESCI(收录号:WOS:000489063500004)】；

语种：英文

外文关键词：Open-ended pipe pile; In situ test; Pile driving resistance; Soil plugging; Numerical simulation

摘要：The estimation methods about pile driving resistance of the small-bore steel jacked pipe pile in silt foundation are not mature at present. The relation between pile driving and the soil property are studied using a qualitative approach according to the static sounding measurements and single pile bearing characteristics in the jack-up engineering of a historic building. And the soil deformation mechanism and soil plug formation and evolution rule are analyzed macroscopicly. The pile driving process includes two stages: the stage when the soil plug is unplugged, and the stage when the soil plug is plugged. The two-stage estimation formula of pile driving resistance is put forward and the fitting coefficients of pile tip resistance and side resistance are achieved. The estimation formula can reflect the pile driving resistance change in each soil layers.