中南大学学报（自然科学版）2018，Vol.49Issue(5)：1189-1196,8.DOI:10.11817/j.issn.1672-7207.2018.05.021
单轴载荷下不同含水率砂岩力学和红外辐射特征
Mechanical and infrared radiation properties of sandstone with different water contents under uniaxial compression
摘要
Abstract
In order to investigate the effect of water on mechanical and infrared radiation properties of rock, a series of uniaxial compressive tests were conducted on sandstone specimens with different water contents, and the infrared radiation characteristics were monitored. The results show that with the increase of water content, both of uniaxial compressive strength and elastic modulus of specimens decrease, which indicates that the sandstone becomes "soft" when the water content increases. Water contents have great influence on the infrared radiation characteristics of rocks. For specimen with higher water content, the amplitude of temperature rising is greater, and the variation of average infrared radiation temperature(AIRT) with time has smaller fluctuation. The temperature shows a more obvious increasing trend with the increase of external load. For wet specimens, the AIRT changes mildly with the increase of loading, and there is no temperature anomaly on the surface. However, AIRT of dry specimens increases abruptly and high-temperature anomaly strips can be monitored.关键词
岩石力学/红外辐射/含水率/平均红外辐射温度(AIRT)/高温异常条带Key words
rock mechanics/infrared radiation/water content/average infrared radiation temperature(AIRT)/high-temperature anomaly strip分类
建筑与水利引用本文复制引用
周子龙,熊成,蔡鑫,赵源,李夕兵,杜坤..单轴载荷下不同含水率砂岩力学和红外辐射特征[J].中南大学学报（自然科学版）,2018,49(5):1189-1196,8.基金项目
国家重点基础研究发展计划(973计划)项目(2015CB060200) （973计划）
国家自然科学基金资助项目(41772313)(Project(2015CB060200)supported by the National Basic Research Development Program(973 Program)of China （41772313）
Project(41772313)supported by the National Natural Science Foundation of China) （41772313）
