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[1]史俊伟,孟祥瑞,陈章良,等.巨厚砾岩下冲击地压发生机理及加固技术研究[J].中国安全生产科学技术,2017,13(12):118-124.[doi:10.11731/j.issn.1673-193x.2017.12.018]
　SHI Junwei,MENG Xiangrui,CHEN Zhangliang,et al.Study on occurrence mechanism and reinforcement technology of rock burst under super thick conglomerate[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(12):118-124.[doi:10.11731/j.issn.1673-193x.2017.12.018]
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巨厚砾岩下冲击地压发生机理及加固技术研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
13
期数:
2017年12期
页码:
118-124
栏目:
职业安全卫生管理与技术
出版日期:
2017-12-31

文章信息/Info

Title:
Study on occurrence mechanism and reinforcement technology of rock burst under super thick conglomerate
文章编号:
1673-193X(2017)-12-0118-07
作者:
史俊伟1; 2; 孟祥瑞2; 陈章良1; 董羽1
（1.山东工商学院 管理科学与工程学院，山东 烟台 264005; 2.安徽理工大学 能源与安全学院，安徽 淮南 232001)
Author(s):
SHI Junwei1; 2;  MENG Xiangrui2;  CHEN Zhangliang1;  DONG Yu1
(1. School of Management Science and Engineering, Shandong Technology and Business University, Yantai Shandong 264005, China; 2. School of Energy and Safety, Anhui University of Science and Technology, Huainan Anhui 232001, China)
关键词:
巨厚砾岩; 冲击地压; 相似材料模拟; 机理; 囊袋式离层加固技术
Keywords:
super thick conglomerate;  rock burst;  similar material simulation;  mechanism;  bag-type bed separation reinforcement technology
分类号:
X937
DOI:
10.11731/j.issn.1673-193x.2017.12.018
文献标志码:
A
摘要:
针对深部矿井巨厚砾岩下采场冲击地压的易发性和危险性，运用理论分析和室内相似材料模拟试验方法，对华丰煤矿巨厚砾岩下覆岩运动规律及采场冲击地压发生机理进行研究。研究发现：随着工作面的推进，离层自下而上发育，在巨厚砾岩层下部离层空间达到最大。煤层极限平衡区内集中静载荷能量E静和巨厚砾岩破断、垮落释放的集中动载荷能量E动是造成采场冲击地压的根本原因，并且E动诱发冲击地压的强度更高，危险性更大。当E静+E动-Ef min>0时，采场冲击地压启动。在此基础上，提出一种囊袋式离层加固技术，对离层区域进行横向挤压和纵向加固，有效控制巨厚砾岩断裂、垮落，防止冲击地压的发生，减少地表沉陷，实现了煤矿安全绿色开采。
Abstract:
Aiming at the susceptibility and risk of rock burst in the stope under the super thick conglomerate of deep mine, the movement laws of overlying strata and the occurrence mechanism of rock burst in the stope under the super thick conglomerate in Huafeng Coal Mine were studied by using the methods of theoretical analysis and similar material simulation test. The results showed that the bed separation developed from the bottom to the top with the advance of working face, and reached the maximum space in the lower part of the super thick conglomerate layer. The concentrated static load energy (Estatic) in the limit equilibrium zone of the coal seam and the concentrated dynamic load energy (Edynamic) released by the break and collapse of the super thick conglomerate were the root causes of rock burst in the stope, and the intensity of rock burst caused by Edynamic was higher, as well as the risk. When Estatic + Edynamic - Efmin> 0, the rock burst in the stope would occur. On this basis, a technology of bag-type bed separation reinforcement was put forward to carry out the transverse extrusion and longitudinal reinforcement on the bed separation region, and it can effectively control the break and collapse of the super thick conglomerate, prevent the occurrence of rock burst, reduce the surface subsidence, and realize the safe and green mining of coal mine.

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备注/Memo

备注/Memo:
国家自然科学基金项目（41601593）
更新日期/Last Update: 2018-01-29