岩土单轴压缩过程的电磁辐射特性实验研究  

Experiment study on electro-magnetic emission character of rock and soil in process of uniaxial compression loading

作　　者：王恩元[1] 赵恩来[1] 

机构地区：[1]中国矿业大学能源与安全工程学院,江苏徐州221008

出　　处：《辽宁工程技术大学学报（自然科学版）》2007年第1期56-58,共3页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学专项基金资助项目(50427401);国家973计划基金资助项目(2005CB221505);江苏省自然科学基金资助项目(BK2001075)

摘　　要：采用重庆黄泥包滑坡处采集的岩土试样,在TYE-300微机控制水泥压力实验机上进行单轴压缩实验,测试了岩土破坏过程的电磁辐射与声发射信号,得出了岩土单轴压缩过程电磁辐射的基本特征:岩土受压会产生电磁辐射信号,电磁辐射信号随着压力的增加呈现连续增加的趋势,在主破裂时刻有较强电磁辐射信号产生;岩土的强度越大,电磁辐射强度值越大;加载速率越大,电磁辐射强度值越大。研究成果对于地质滑坡等灾害预报有着较大的理论意义和应用前景。In this paper, we adopt rock and soil sample which is collected in the location of landslide in Huangnibao Chongqing and make uniaxial compression loading experiments by using cement pressure machine of TYE-300 controlled by computer.In the process of fracture of rock and soil, we test electro-magnetic and acoustic emission signals and receive principal character of electro-magnetic emission of rock and soil in the process of uniaxial compression loading. Electro-magnetic emission signals can be generated in the fracture process of rock and soil. Increasing with the addition of pressure and in main fracture, electro-magnetic emission signals become stronger. The larger the intensity of the rock and soil is, the stronger the electromagnetic radiation intensity is. The higher the loading rate, the stronger the electromagnetic radiation intensity is. The research has certain significance in the abstract and foreground in the application for the disaster prediction of geological landslip.

关 键 词：岩土 电磁辐射 单轴压缩 加载速率 

分 类 号：TU411.5[建筑科学—岩土工程]