防灾减灾工程学报2017，Vol.37Issue(4)：551-556,6.DOI:10.13409/j.cnki.jdpme.2017.04.007
冷水循环作用对半埋管能源桩承载特性影响试验研究
Study on the Bearing Capacity of Energy Pile with Half Buried Pipes under Cooling Cycling
摘要
Abstract
Energy pile system was developed on the basis of the ground-source heat pump.It is a new pile foundation form that combined the pile and ground-source heat pump system.Field study has been conducted on the bearing capacity of energy pile with half buried pipes under cooling cycles.The changing rules of the soil temperature surrounding the pile,pile body temperature,axial force and pile side friction have been got.The largest influence range around the energy pile is 100 cm,which is decreased gradually with increased depth.The pile body temperature decreases first and then increases from up to down under cooling cycles.The axial force and side friction detection shows that the energy pile with half buried pipe can also shrink from two sides to middle and the central point is located at the half bottom of the pipe buried part.关键词
温度循环/半埋管/能源桩/桩身轴力/桩侧摩阻力Key words
temperature cycle/half buried pipe/energy pile/axial force of pile/pile side friction分类
建筑与水利引用本文复制引用
陈龙,陈永辉,李行,徐洁,史江伟,陈庚..冷水循环作用对半埋管能源桩承载特性影响试验研究[J].防灾减灾工程学报,2017,37(4):551-556,6.基金项目
国家自然科学基金青年基金项目(51708175)、国家自然科学基金面上项目(51778212)、江苏省高校“青蓝工程”项目(2014)资助 （51708175）
