| 截齿截割煤体变形破坏过程的红外热像研究 |
| |
| 引用本文： | 王春华,丁仁政,李贵轩,郑连宏.截齿截割煤体变形破坏过程的红外热像研究[J].岩土力学,2007,28(3):449-454. |
| |
| 作者姓名： | 王春华 丁仁政 李贵轩 郑连宏 |
| |
| 作者单位： | 辽宁工程技术大学,机械工程学院,辽宁,阜新,123000 |
| |
| 摘 要： | 对截齿截割煤体变形破坏过程的红外热像进行测量和分析，从而研究截齿截割作用下煤体变形破坏规律。改变截齿类型、截割速度、截深、测量方位等测量煤体红外热像，发现扁齿截割时在垂直截割方向与扁齿凸脊相应处出现条状高温区；锥齿截割时在齿尖附近出现点状高温区；截割速度越快，热效应越明显。截齿截割煤体过程中，温度场中最高温度值与截深及煤体力学性质有关。截深越深，温度场中最高温度越高；煤体的抗拉强度、抗压强度、黏结力、内摩擦角越大，高温区的最高温度越高。
|
| 关 键 词： | 截齿截割 红外热像 点状高温区 条状高温区 |
| 文章编号： | 1000-7598-（2007）03-0449-06 |
| 收稿时间： | 2006-07-24 |
| 修稿时间： | 2006-07-24 |
Research on infrared hot image in deformation and destruction course under pick cutting |
| |
| WANG Chun-hua,DING Ren-zheng,LI Gui-xuan,ZHENG Lian-hong.Research on infrared hot image in deformation and destruction course under pick cutting[J].Rock and Soil Mechanics,2007,28(3):449-454. |
| |
| Authors: | WANG Chun-hua DING Ren-zheng LI Gui-xuan ZHENG Lian-hong |
| |
| Institution: | College of Mechanical Engineering, Liaoning Technical University, Fuxin 123000, China |
| |
| Abstract: | To make measure and research on the infrared hot image in the deformation and destruction course under pick cutting is carried out in order to analyze the deformation and destruction law. To change the pick type, cutting speed, cutting depth, tooth style and measuring position is carried out, so as to measure its infrared picture. It is found that there appears a bar of high-temperature district in the direction vertical to cutting direction while knife teeth are cutting the coal. While there is a point of high-temperature district when point-attack pick cuts the coal. The faster the cutting speed is, the more obvious the heat effect will be. In the course of pick cutting, the highest temperature value in temperature field is relative to cutting depth and mechanical characters. The deeper the cutting depth is, the highest temperature is in the temperature field. The bigger the tensile strength, compression strength, adhesion stress and inner friction angle are, the highest temperature is in high temperature district. |
| |
| Keywords: | pick cutting infrared hot image a point of high-temperature district a bar of high-temperature district |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
|
