不同水温浸泡后粉砂岩破裂过程红外辐射特性研究  

Study on infrared radiation characteristics of siltstone after process of different temperature soaking

作　　者：杨阳[1,2] 梅力[1,2] 刘浩[1,2] 吴贤振[1,2] 周伶杰 

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000 [2]江西省矿业工程重点实验室,江西赣州341000

出　　处：《中国矿业》2017年第6期149-153,共5页China Mining Magazine

基　　金：江西省教育厅科技计划项目资助(编号:GJJ12336);江西省研究生创新专项资金项目资助(编号:YC2016-S303)

摘　　要：为探寻温度条件对粉砂岩破裂过程红外辐射特性,分别对50℃、100℃水中浸泡过的粉砂岩试样进行单轴压缩试验,通过平均红外温度(AIRT)、方差、欧氏距离三项指标对两组试样加载过程的红外辐射温度场特性进行定量分析,得出不同水温浸泡下粉砂岩破裂过程红外辐射特性。结果表明:三项指标对50℃、100℃水浸泡粉砂岩试件红外辐射温度场的刻画整体趋势大体一致,但100℃水浸泡试件在单轴加载破坏过程中裂隙的发育的剧烈程度远远低于50℃水浸泡试件,且发育过程趋向于平缓稳定发育,同时在一定程度上存在裂隙发育滞后的现象。In order to investigate the infrared radiation characteristics of the siltstone during the process of temperature,the uniaxial compression tests were carried out on the siltstone samples soaked in water at 50℃ and 100℃. The average infrared temperature （AIRT）, variance, Euclidean distance The infrared radiation temperature field characteristics of the two groups of samples were analyzed quantitatively,and the infrared radiation characteristics of the siltstone under different water temperature were obtained. The results show that the three indexes have the same general trend in the infrared radiation temperature field of water-soaked siltstone specimen at 50℃, 100℃ ,but the development of 100℃ water immersion specimen is far from violent in uniaxial loading failure process Water immersion specimens below 50℃, and the development process tends to be stable and stable development,at the same time to some extent,there is the phenomenon of fissure development lag.

关 键 词：岩石力学 破裂失稳 红外热图像 水温 

分 类 号：TD315[矿业工程—矿井建设]