压实填土的热传导系数与密实度相关性研究  

Study on the correlation between heat conductivity and compactness of compacted fill

作　　者：孙冬蒲 黄凤青 龙平 杨旭湟 Sun Dongpu;Huang Fengqing;Long Ping;Yang Xuhuang(School of Civil Engineering,Northwest Minzu University,Lanzhou 730124,China)

机构地区：[1]西北民族大学土木工程学院,甘肃兰州730124

出　　处：《山西建筑》2021年第17期73-75,共3页Shanxi Architecture

摘　　要：探究热传导系数与密实度的相关性,从而探索出一种基于热传导系数的新型回填土密实度检测方法。通过研究压实填土导热系数与密实度的相关性,测试粉土制成的压实填土,在相同击实能、不同含水率,最优含水率、不同击实能条件下的热传导系数,从而找到导热系数与密实度的相关性。实验结果表明,热传导系数与密实度之间呈现二次多项式的函数关系,为回填土的质量检验提供了新的方法。This paper explores the correlation between thermal conductivity and compactness,so as to explore a new detection method of backfill compactness based on thermal conductivity.By studying the correlation between thermal conductivity and compactness of compacted fill,the thermal conductivity of compacted fill made of silt is tested under the conditions of the same compaction energy,different moisture content,optimal moisture content and different compaction energy,so as to find the correlation between thermal conductivity and compactness.The experimental results show that the relationship between thermal conductivity and compactness is quadratic polynomial,which provides a new method for quality inspection of backfill.

关 键 词：压实填土 热传导系数 密实度 针式热传导系数仪 

分 类 号：TU411[建筑科学—岩土工程]