正交试验下黏土导热系数影响分析  

Influence Analysis of Thermal Conductivity of Clay under Orthogonal Test

作　　者：程佳会 范成伟[1] 徐晓兵 刘婉姝 Cheng Jiahui;Fan Chengwei;Xu Xiaobing;Liu Wanshu(Wuchang Institute of Technology,Wuhan,Hubei 430063)

机构地区：[1]武昌工学院,湖北武汉430063

出　　处：《江西建材》2022年第3期34-36,共3页Jiangxi Building Materials

基　　金：武昌工学院校级科研项目(2020KY08)。

摘　　要：文中为了探究室内试验下黏土传热能力的影响因素,基于正交试验法开展黏土导热试验,分析含水率、干密度和固结压力3个影响因素对黏土传热性能的影响程度,并通过极差分析得出单因素对不同黏土热物理性参数的影响。结果表明,含水率和干密度是影响导热系数的主要因素,其中含水率是最主要因素,而固结压力对导热系数影响较小为次要因素。As the global demand for new resources increases, geothermal energy is being used more and more widely in emerging areas, so the study of soil heat transfer properties is also very important. In order to explore the influencing factors of the clay heat transfer capacity in the laboratory test, this paper carried out the clay heat transfer test based on the orthogonal test method, and analyzed the influence degree of the three influencing factors of water content, dry density and consolidation pressure on the clay heat transfer performance. Through the range analysis, the influence of a single factor on the thermophysical parameters of different clays is obtained. The results show that as the moisture content increases, the growth rate of the thermal conductivity of clay shows a decreasing trend, and gradually stabilizes, showing a linear relationship with the dry density and consolidation pressure;according to the range value, the moisture content and dry density are the influence The main factor of thermal conductivity, of which water content is the most important factor, and the consolidation pressure has little effect on thermal conductivity, which is a secondary factor.

关 键 词：重塑黏土 导热系数 正交试验 

分 类 号：TK124[动力工程及工程热物理—工程热物理] TU443[动力工程及工程热物理—热能工程]