| 大倾角煤层开采顶板垮落特征及矿压显现规律 |
| |
| 引用本文： | 赵元放,张向阳,涂敏.大倾角煤层开采顶板垮落特征及矿压显现规律[J].采矿与安全工程学报,2007,24(2):231-234. |
| |
| 作者姓名： | 赵元放 张向阳 涂敏 |
| |
| 作者单位： | 1. 安徽理工大学,资源开发与管理工程系,安徽,淮南,232001;安徽省煤矿安全监察局,安徽,合肥,230000
2. 安徽理工大学,资源开发与管理工程系,安徽,淮南,232001 |
| |
| 基金项目： | 国家自然科学基金项目（50574090） |
| |
| 摘 要： | 为了研究大倾角条件下的综合机械化采煤工作面矿压显现规律，采用FLAC5.02D数值模拟软件建立相应的分析模型，模拟了煤层开采过程中的顶板垮落和围岩应力分布特征，重点分析了工作面上下端头的围岩应力分布规律及变形特点;结合具体生产矿井的综采工作面现场情况，得出了综采工作面推进过程中的周期来压、采动影响范围和煤壁片帮等矿压显现特征，并针对开采中出现的问题提出了相应的安全防范措施.
|
| 关 键 词： | 大倾角煤层 顶板垮落 数值模拟 围岩应力 矿压显现 |
| 文章编号： | 1673-3363（2007）02-0231-04 |
| 收稿时间： | 2007-01-22 |
| 修稿时间： | 2007-01-22 |
Roof Caving Characteristic and Strata Behavior in Exploiting Steep Coal Seams |
| |
| ZHAO Yuan-fang,ZHANG Xiang-yang,TU Min.Roof Caving Characteristic and Strata Behavior in Exploiting Steep Coal Seams[J].Journal of Mining and Safety Engineering,2007,24(2):231-234. |
| |
| Authors: | ZHAO Yuan-fang ZHANG Xiang-yang TU Min |
| |
| Affiliation: | 1. Department of Resources Exploration and Management Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, China; 2. Anhui Colliery Bureau of Safety and Supervision, Hefei, Anhui 230000, China |
| |
| Abstract: | The FLAC5.0^2D software is used in establishing a relevant model to study the strata behavior of fully mechanized working face of steep coal seams. Using this model, we have simulated the roof caving characteristic and the stress distribution of surrounding rocks and analyzed the deformation feature of the surrounding rocks in the working face end. Based on the in-situ observation about the fully mechanized working face, we have obtained the periodic weighting of the working face, the mining induced affecting area, and the strata behavior of coal wall and proposed some countermeasures aiming at these problems. |
| |
| Keywords: | steep coal seam roof caving numerical simulation surrounding rock stress strata behavior |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
