受载岩石红外辐射的影响因素及机理分析  

Analysis of Affecting Factors and Mechanics of Infrared Radiation Coming from Loaded Rocks

作　　者：刘善军[1,2] 吴立新[1] 吴育华[1] 李永强[1] 

机构地区：[1]中国矿业大学(北京校区)3S与沉陷工程研究所,北京100083 [2]河北理工学院资源系,河北唐山063009

出　　处：《矿山测量》2003年第3期67-68,46,共3页Mine Surveying

基　　金：全国优秀博士学位论文专项基金(200046);北京市自然科学基金重点项目(8001003)联合资助

摘　　要：在总结过去实验的基础上，对岩石在加载过程中产生红外辐射的影响因素（加载速率、加载方式及岩性）及机理进行了分析和讨论。认为：1）随着加载速率的上升，温度上升加快。但在加载速率2.75×10-5/s到1.65×10-4/s的变化范围，单位应变内岩石红外辐射无明显规律性的变化；2）岩石压缩加载辐射温度上升，而拉伸加载辐射温度下降；3）不同岩性的岩石，因其矿物成分、结构及构造的差异，使得加载过程中的红外辐射规律不同；4）加载岩石红外辐射变化规律受两种热效应——热弹效应和摩擦热效应控制，两种热效应在不同的加载阶段所起的作用不同。In the paper, based on summery of past experiments, analysis and discussion are made on affecting factors (i. e. Loading speed, loading mode and rock character) and mechanics of infrared radiation happened during rocks are compressed, the conclusion reached is that:(1) AIRT(average infrared radiation temperature) rises quickly with increase of loading speed,but when the loading speed reaches between 2.75×10-5/s and 1.65×10-4/s, the infrared radiation of rocks within unit strain has not obvious regular variation; (2) the IRT rises when rocks are compressed and decreases when stretched; (3) due to differences of mineral composition, structure and constitution in rocks with different characters, infrared radiation in the loading process presents different variation laws; (4) the variation laws of infrared radiation are controlled by two kinds of heating effects, i.e. thermoelastic effect and friction heating effect, which play different roles in different loading stages.

关 键 词：受载岩石 红外辐射 遥感-岩石力学 热-力耦合效应 热红外辐射 

分 类 号：P237[天文地球—摄影测量与遥感]