采动动态地裂缝发育特征监测装置的设计与应用 |
| |
引用本文: | 王新静,胡振琪.采动动态地裂缝发育特征监测装置的设计与应用[J].煤炭工程,2014,46(3):131-133. |
| |
作者姓名: | 王新静 胡振琪 |
| |
作者单位: | 1. 中国矿业大学(北京)土地复垦与生态重建研究所
2. 中国矿业大学(北京) |
| |
基金项目: | 中央高校基本科研业务费专项基金项目(2010YD03);神华集团科技创新项目(SHGF-2011-08) |
| |
摘 要: | 针对西部风沙区高强度开采动态地裂缝发育特征监测难点以及现有技术存在的问题,开发了一套采动地裂缝发育周期的监测装置,文章详细阐述了装置的组成、使用方法以及数据的处理方法。该装置在补连塔12406工作面进行动态地裂缝监测,监测结果表明,高强度开采动态地裂缝扩展的程度和时间相对较小,在垂直方向上无显著落差,在水平方向上的相对位移呈现两个时长近似"开裂—闭合"的发育周期,地裂缝的发育特征与过程进一步验证了高强度快速开采地表移动变形的特点。
|
关 键 词: | 高强度开采 采动动态地裂缝 发育特征 监测装置 系统构件 |
Design and application of monitoring device for development characteristic of dynamic ground fissure caused by coal mining |
| |
Abstract: | Based on the monitoring difficulties of dynamic ground fissure development characteristic and the problems of prior technology in the windy and sandy region with high tension caving mining, a new monitoring device had been invented, and the detail of operating method and processing technique of data had been described. Fixing rod, raster dial, pointer system, leveling base and other components constituted this device, the small variations of fissure form during the mining process can be obtained by projection value changes of pointer on the raster dial. It had obtained National Utility Model Patents and applied to monitor the dynamic ground fissure in 12406 working face. The application result indicates that the degree and time of expansion of dynamic ground fissure due to high tension mining caving is smaller than before. The development characteristic of dynamic ground fissure without obvious heads ,however,the width shows two ‘cracking-closure’ stages, with approximate equal durations. The process and characteristics of development of dynamic ground fissure has further validated ground movement and deformation caused by high tension and rapid caving mining. |
| |
Keywords: | high tension mining dynamic ground fissure development characteristic monitoring device system components |
本文献已被 CNKI 等数据库收录! |
| 点击此处可从《煤炭工程》浏览原始摘要信息 |
|
点击此处可从《煤炭工程》下载全文 |
|