循环液对能量桩性能的影响

Influence of Circulation Fluid on the Property of Energy Pile

能量桩大大降低了地源热泵的初始投资,节约地表面积,引起了人们的极大关注。目前,能量桩在我国还处于理论研究阶段,绝大部分关注的是能量桩的热效率,关于循环液对能量桩工程性质影响的文献资料还是空白。通过对英国朗伯斯(Lambeth)学院关于能量桩的试验进行分析,探索循环液对能量桩的承载力、荷载分布等性质的影响,优化能量桩的设计,为国内能量桩的设计提供借鉴。

Energy pile has attracted great attention as it can greatly reduce the initial investment of ground source heat pump as well as save its occupied area of the earth＇s surface. At present, the study of energy pile is still in the theoretical phase, with most attention fixed on its thermal efficiency, while there is barely any relevant bibliographic data concerning the influence of circulation fluid on the properties of energy pile. This paper is aimed at analyzing the experiment of energy pile carried out in Lambeth, in order to explore the influence of circu- lation fluid on the properties of energy pile, such as its bearing capacity, load distribution, etc. and to optimize its design.