| 孤岛工作面沿空掘巷矿压特征研究及工程应用 |
| |
| 引用本文： | 华心祝,刘淑,刘增辉,查文华,李迎富.孤岛工作面沿空掘巷矿压特征研究及工程应用[J].岩石力学与工程学报,2011,30(8):1646-1651. |
| |
| 作者姓名： | 华心祝 刘淑 刘增辉 查文华 李迎富 |
| |
| 作者单位： | (1. 安徽理工大学 煤矿安全高效开采省部共建教育部重点实验室，安徽 淮南 232001；2. 国投新集能源股份有限公司新集二矿，安徽 淮南 232181) |
| |
| 基金项目： | 国家自然科学基金资助项目(50774001); 安徽理工大学优秀创新学术团队资助项目 |
| |
| 摘 要： | 孤岛工作面沿空掘巷矿压显现剧烈，支护难度大。若支护参数设计不当，巷道支护失败，必将极大影响工作面安全回采。以淮南潘三矿1251(3)孤岛工作面回风巷为工程背景，采用FLAC3D软件研究孤岛工作面沿空掘巷超前支承压力分布特征。通过建立孤岛工作面沿空掘巷基本顶的力学模型，推导出受动压影响时巷道顶板下沉量的计算公式。研究结果表明，孤岛工作面超前支承压力增加明显，孤岛工作面沿空掘巷围岩变形量剧增，其支护难度大大增加。在获得以上研究结果的基础上，分别对试验巷道掘进期间支护参数和回采期间加固参数进行设计。工程实践表明，锚网索和注浆加固联合支护可有效地控制孤岛工作面沿空掘巷围岩的变形，研究结果可在类似条件下推广应用。
|
| 关 键 词： | 采矿工程孤岛工作面沿空掘巷矿压特征围岩变形 |
| 收稿时间： | 2010-12-29; |
RESEARCH ON STRATA PRESSURE CHARACTERISTIC OF GOB-SIDE ENTRY DRIVING IN ISLAND MINING FACE AND ITS ENGINEERING APPLICATION |
| |
| HUA Xinzhu,LIU Shu,LIU Zenghui,ZHA Wenhua,LI Ying fu.RESEARCH ON STRATA PRESSURE CHARACTERISTIC OF GOB-SIDE ENTRY DRIVING IN ISLAND MINING FACE AND ITS ENGINEERING APPLICATION[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(8):1646-1651. |
| |
| Authors: | HUA Xinzhu LIU Shu LIU Zenghui ZHA Wenhua LI Ying fu |
| |
| Affiliation: | (1. Key Laboratory of Mine Safety and High Efficient Mining Jointly Built by Anhui Province and Ministry of Education，Anhui University of Science and Technology，Huainan，Anhui 232001，China；2. Xinji II mine，State Development and Investment Xinji Energy Co.，Ltd.，Huainan，Anhui 232181，China) |
| |
| Abstract: | Due to the severe strata pressure characteristic of the gob-side entry driving in the island mining face and the difficulty in supporting roadway,if supporting parameters of the gob-side entry driving are improperly designed,and roadway support fails,the mining safety will be greatly affected.Taking the return airway of No.1251(3) island mining face as project background,3-dimensional fast Lagrange analysis of continua(FLAC3D) is adopted to study the distribution characteristics of advance abutment pressure... |
| |
| Keywords: | mining engineering island mining face gob-side entry driving strata pressure characteristic surrounding rock deformation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《岩石力学与工程学报》浏览原始摘要信息 |
|
点击此处可从《岩石力学与工程学报》下载全文 |
