岩土工程学报2016，Vol.38Issue(12)：2302-2308,7.DOI:10.11779/CJGE201612020
塑料套管混凝土桩承载试验及沉降计算方法研究
Bearing capacitytests and settlement calculation method of plastic tube cast-in-place concrete pile
摘要
Abstract
The plastic tube cast-in-place concrete pile (TC pile),which is suitable for soft ground treatment, is comprised of pre-driven plastic tube filled with concrete, which has the advantages of high bearing capacity, fast construction speed and reliable pile quality etc. According to the model and in-situ testsonbearing capacity of TCpiles, the working behaviors of TC pilesare investigated. Taking into account the pile-soil settlement difference of rigid pile composite foundation under embankment load, the additional stresses generated by pile groups and foundation soils are separately computed byusing the Mindlin stress solution andtheBoussinesq solution. The two kinds of stresses are added together, and the settlement of composite foundation is calculated by using the layer-wise summation method. The results show thatthebearing capacityofTC piles exhibitsobvious, time-dependent behaviors, however, there are significantly different bearing behaviors in different intermissions, and the calculated results of settlements of TC piles agree well with the measured data.关键词
塑料套管混凝土桩/桩基承载力/试验研究/应力解/沉降计算方法Key words
plastic tube cast-in-place concrete pile/bearing capacity of pile foundation/experimental study/stress solution/settlement calculation method分类
建筑与水利引用本文复制引用
齐昌广,刘汉龙,陈永辉,刘干斌,左殿军..塑料套管混凝土桩承载试验及沉降计算方法研究[J].岩土工程学报,2016,38(12):2302-2308,7.基金项目
浙江省自然科学基金青年基金项目（LQ15E080002）；国家自然科学基金青年科学基金项目 （）
