王巍，王文，张广杰. 神东矿区浅埋大采高工作面支架-围岩耦合关系及支架适用性研究［J］.河南理工大学学报（自然科学版），doi:10.16186/j.cnki.1673-9787.2024030007

WANG W, WANG W, ZHANG G J. Study on the coupling relationship between support and surrounding rock structure and the applicability of support in shallow buried coal seam high mining face of Shendong Mining Area［J］.Journal of Henan Polytechnic University（Natural Science），doi: 10.16186/j.cnki.1673-9787.2024030007

神东矿区浅埋大采高工作面支架-围岩耦合关系及支架适用性研究(网络首发)

王巍¹，王文²，张广杰³

（1.国家能源集团 神东煤炭公司，陕西 榆林 719315；2.河南理工大学 能源科学与工程学院，河南 焦作 454000;3.河南理工大学 河南理工产业技术研究院有限公司，河南 焦作 454000）

摘要: [目的] 为有效解决神东矿区浅埋深大采高工作面存在开采强度大导致采场围岩控制困难的问题， [方法] 通过理论分析和现场实测的方法，结合采场覆岩“砌体梁”力学模型，阐释了大采高工作面开采支架-围岩耦合关系，并对该矿区特殊条件下采场矿压规律、支架合理工作阻力及其适用性进行了研究。[结果] 结果表明：断裂的老顶岩体及其随动岩体自重、旋转空间对顶板动载荷产生了较大的影响，“直接顶、支架及底板”整体刚度能够对老顶的破断位置产生影响，使其老顶来压对支架的作用力、作用时间变小；支架-围岩间存在刚度、强度、稳定性等耦合关系。[结论] 提出基于支架实用效果的“支、护、采3因素法”对其适用性进行评价，采用岩石自重估算、实测支架循环末工作阻力加1倍均方差及传递岩梁理论等方法对支架工作阻力进行验算，并得到了合理的支架工作阻力。为相似条件下支架选型及其适用性评价工作提供科学指导。

关键词:大采高工作面；支架-围岩耦合；矿压规律；工作阻力；适用性分析

中图分类号：TD353

doi: 10.16186/j.cnki.1673-9787.2024030007

基金项目: 国家自然科学基金资助项目（51604093）；河南省科技攻关项目（212102310603）

收稿日期：2024-03-04

修回日期：2024-07-17

网络首发日期：2024-11-01

Study on the coupling relationship between support and surrounding rock structure and the applicability of support in shallow buried coal seam high mining face of Shendong Mining Area

WANG Wei¹, WANG Wen², ZHANG Guangjie³

（1.National Energy Group Shendong Coal Company, Yulin 719315, Henan, China; 2.School of Energy science and Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China; 3.Henan Institute of Technology Research Institute Co., Ltd., Henan Polytechnic University, Jiaozuo 454000, Henan, China）

Abstract: [Objective] In order to effectively solve the problem of difficult control of surrounding rock in the shallow buried deep and high mining face of Shendong mining area due to high mining intensity, [Methods] the coupling relationship between mining support and surrounding rock in the high mining face was explained through theoretical analysis and on-site measurement, combined with the mechanical model of the overlying rock "masonry beam" in the mining area.  [Results] The mining pressure law, reasonable working resistance of the support and its applicability under special conditions in the mining area were studied. The results show that the self weight and rotational space of the fractured old roof rock mass and its accompanying rock mass have a significant impact on the dynamic load of the roof. The overall stiffness of the "direct roof, support, and bottom plate" can affect the location of the broken old roof, reducing the force and working time of the support under the pressure of the old roof; There is a coupling relationship between the support and surrounding rock, including stiffness, strength, and stability; [Conclusion] A three factor method based on the practical effect of the support is proposed to evaluate its applicability. Methods such as estimating the rock self weight, measuring the end of cycle working resistance of the support plus one time the mean square deviation, and transmitting rock beam theory are used to verify the working resistance of the support, and a reasonable working resistance of the support is obtained. Provide scientific guidance for the selection and applicability evaluation of brackets under similar conditions.

Key words: large mining height working face; support surrounding rock coupling; mine pressure pattern; work resistance; applicability analysis

CLC: