深部构造应力区煤巷肩角锚杆破断机制及控制

›› 2013, Vol. 34 ›› Issue (8): 2303-2308.

深部构造应力区煤巷肩角锚杆破断机制及控制

肖同强¹，李怀珍¹，徐营^{2, 3}，张治高⁴

1.河南理工大学能源科学与工程学院，河南焦作 454000；2.中国矿业大学煤炭资源与安全开采国家重点实验室，江苏徐州 221008； 3.中国矿业大学矿业工程学院，江苏徐州 221008；4.山东新巨龙能源有限责任公司，山东菏泽 274918

收稿日期:2012-11-09 出版日期:2013-08-12 发布日期:2013-08-13
作者简介:肖同强，男，1981年生，博士，讲师，主要从事巷道围岩控制理论及支护技术研究
基金资助:
国家自然科学基金青年科学基金资助（No. 51204167）；河南理工大学博士基金资助（No. B2012-081）。

Breaking mechanism of shoulder bolt of deep coal roadway in tectonic stress area and its control

XIAO Tong-qiang¹, LI Huai-zhen¹, XU Ying^{2, 3}, ZHANG Zhi-gao⁴

1. School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China; 2. State Key Laboratory of Resources and Mine Safety, China University of Mining & Technology, Xuzhou, Jiangsu 221008, China; 3. School of Mining and Safety Engineering, China University of Mining & Technology, Xuzhou, Jiangsu 221008, China; 4. Shandong Xinjulong Energy Limited Liability Company, Heze, Shandong 274918, China

Received:2012-11-09 Online:2013-08-12 Published:2013-08-13

摘要/Abstract

摘要： 针对深部构造应力作用下煤巷“肩角锚杆破断”问题，建立肩角锚杆力学分析模型，分析煤帮沿顶板滑移对锚杆的作用，得到肩角锚杆的受力、变形特征，揭示深部构造应力区煤巷肩角锚杆破断机制，即在煤帮沿顶板的滑移剪切力作用下，杆体发生弯曲变形，且构造应力越大，弯曲变形越严重；肩角锚杆在煤岩层交界面处受到的剪力最大，而使得锚杆在交界面处易被剪断。针对深部构造应力区煤巷肩角锚杆破断问题，提出“控让耦合支护”围岩控制技术，并成功应用于工程实践。

关键词: 深部煤巷, 肩角锚杆, 剪切破断, 控让耦合支护

Abstract: In deep tectonic stress area, shoulder bolt broken and failure phenomenon is prominent in coal roadway; and it’s easy to induce roof collapse accident. It is an immediate requirement to solve support failure problem. In view of “shoulder bolt breakage” in deep coal roadway under the action of tectonic stress, a mechanical analysis model of shoulder bolt is established to analyze the action of slippage of coal ribs along roof on bolts; and stress and deformation characteristics of shoulder bolt are gotten. Shoulder bolt breaking mechanism is discovered. Under slippage shear force produced by tectonic stress, bending deformation of bolt body happens; and the shear force of shoulder bolt is biggest in interface between coal seam and roof, where the bolt body is cut off easily. Focused on the problem of shoulder bolt breakage, “controlling and yielding coupling support” control technology is put forward. The research results have been successfully applied to engineering practice.

Key words: deep coal roadway, shoulder bolt, shear breakage, controlling and yielding coupling support

中图分类号:

TD 353

肖同强，李怀珍，徐营，张治高 . 深部构造应力区煤巷肩角锚杆破断机制及控制[J]. , 2013, 34(8): 2303-2308.

XIAO Tong-qiang , LI Huai-zhen , XU Ying , ZHANG Zhi-gao . Breaking mechanism of shoulder bolt of deep coal roadway in tectonic stress area and its control[J]. , 2013, 34(8): 2303-2308.

参考文献

相关文章 15

[1]	尤志嘉，付厚利，尤春安，张军，邵辉，毕冬宾，时健，. 土层锚固体应力传递机制[J]. , 2018, 39(1): 85-92.
[2]	张元超，杨圣奇，陈淼，臧传伟，龙景奎，. 深井综放沿空掘巷实体煤帮变形破坏机制及控制技术[J]. , 2017, 38(4): 1103-1113.
[3]	赵明，黄侃，林佳，张鹏，赵健，陈磊，葛勇勇,. 大采高碎裂煤巷软弱围岩控制优化研究[J]. , 2016, 37(S2): 589-596.
[4]	黄庆享，赵萌烨，张强峰，邵水才，马矿生,. 含软弱夹层厚煤层巷帮外错滑移机制与支护研究[J]. , 2016, 37(8): 2353-2358.
[5]	黄庆享，郑超. 巷道支护的自稳平衡圈理论[J]. , 2016, 37(5): 1231-1236.
[6]	贾宏俊，王辉,. 软岩巷道可缓冲渐变式双强壳体支护原理及实践[J]. , 2015, 36(4): 1119-1126.
[7]	王汉鹏，李术才，薛俊华，李建明，张庆贺，马芹永，. 深部岩巷分区破裂围岩稳定性控制方法及应用[J]. , 2014, 35(7): 1957-1964.
[8]	张春会，赵全胜. 饱水度对砂岩模量及强度影响的三轴试验[J]. , 2014, 35(4): 951-958.
[9]	王琦，王洪涛，李术才，王德超，江贝，张红军，李为腾,. 大断面厚顶煤巷道顶板冒落破坏的上限分析[J]. , 2014, 35(3): 795-800.
[10]	王刚，吴学震，蒋宇静，黄娜,. 大变形锚杆-围岩耦合模型及其计算方法[J]. , 2014, 35(3): 887-895.
[11]	李为腾，李术才，王琦，阮国强，左金忠，. 深部厚顶煤巷道围岩变形破坏机制模型试验研究[J]. , 2013, 34(10): 2847-2856.
[12]	张农，李桂臣，阚甲广. 煤巷顶板软弱夹层层位对锚杆支护结构稳定性影响[J]. , 2011, 32(9): 2753-2758.
[13]	蒋斌松，冯强，王涛，刘志强. 封闭式可缩性金属支架解析计算[J]. , 2011, 32(6): 1620-1624.
[14]	庞建勇，闾沛. 软岩巷道聚丙烯混凝土钢筋网壳复合衬砌试验及工程应用研究[J]. , 2010, 31(12): 3829-3834.
[15]	王光勇，顾金才，陈安敏，徐景茂，张向阳. 全长粘结式锚杆加固洞室抗爆性能试验研究[J]. , 2010, 31(1): 107-112.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed