铁道标准设计2017，Vol.61Issue(5)：105-108,4.DOI:10.13238/j.issn.1004-2954.2017.05.023
地下水热效应桩基试验装置的研究和应用
Development of Pile Foundation Test System Simulating Thermal Effect of Groundwater and its Application
摘要
Abstract
In order to study the influence of groundwater on the pile foundation in permafrost area, a new type of indoor pile foundation test system is developed on the basis of the exiting equipment with improved loading system and displacement collection system to simulate the thermal effect of groundwater by using adjustable resistance as heat source.The parameters of the system are determined through calibration test.With the test system, the bearing capacity test of pile foundation at different groundwater level, with or without groundwater condition, is carried out to analyze the influence of thermal effect of groundwater on single pile ultimate bearing capacity.The test result is in good agreement with the theoretical model calculation, showing that the device can well simulate thermal effect of groundwater.关键词
冻土地区/桩基础/试验装置/地下水/热效应/极限承载力Key words
Permafrost area/Pile foundation/Test apparatus/Groundwater/Thermal effect/Ultimate bearing capacity分类
建筑与水利引用本文复制引用
蒋硕,吴亚平,潘高峰,刘亚尊..地下水热效应桩基试验装置的研究和应用[J].铁道标准设计,2017,61(5):105-108,4.基金项目
国家自然科学基金(215172) （215172）
中国铁路总公司科技研究开发计划课题(2015G005-C) （2015G005-C）
