现场岩土热物性参数的影响因素分析  

Analysis of infiuence factors for in-situ thermophysical parameters of rock and soil

作　　者：石凯波 王景刚[1] 鲍玲玲[1] 侯松宝 曹辉[1] 

机构地区：[1]河北工程大学能源与环境工程学院,河北邯郸056038

出　　处：《河北工程大学学报（自然科学版）》2017年第2期66-69,79,共5页Journal of Hebei University of Engineering:Natural Science Edition

基　　金：河北省自然科学基金资助项目(E2015402139);河北省教育厅科学技术处资助项目(QN2014064)

摘　　要：对邢台市一试验井分别进行3d和2d的热响应试验,研究加热功率、测试时长、土壤初始温度对岩土热物性参数的影响。结果表明,同一测试孔在不同的加热功率下的岩土热物性参数存在差异;测试时长为48~64 h时测得的岩土热物性参数比较稳定;土壤初始温度越高,岩土热扩散系数越小。Based on the thermal response tests of 3-day and 2-day in a test well in Xingtai, the effects of heating power, testing time and initial soil temperature on the thermophysical parameters of rock and soil were studied. The results show that under the same test area, different heating powers have different results. The measured thermophysical parameters of rock and soil are relatively stable when test time vary from 48 to 64 hours. The higher the initial soil temperature is, the smaller thermal diffusion coefficient of rock and soil is.

关 键 词：热响应试验 加热功率 测试时长 土壤初始温度 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]