陕西煤炭2025，Vol.44Issue(5)：1-6,17,7.DOI:10.20120/j.cnki.issn.1671-749x.2025.0501
深部厚煤层采动应力场特征及控制技术研究
Characteristics and control technology of mining stress field in deep thick coal seams
张春雷 1范文昌 2唐莹钰3
作者信息
- 1. 国家能源集团宁夏煤业有限责任公司麦垛山煤矿,宁夏银川 750408
- 2. 山东新巨龙能源有限责任公司,山东荷泽 274918
- 3. 山东科技大学能源与矿业工程学院,山东青岛 266590
- 折叠
摘要
Abstract
With the coal mining entering the deep,the deformation and instability of the surrounding rock of the mining road-way can be effectively controlled by clarifying the spatiotemporal evolution characteristics of the mining stress field in the deep thick coal seam mining process and realizing the accurate control of the damage degree of the surrounding rock of the stope under the influence of mining.Therefore,taking a mine as the engineering background,theoretical analysis,numerical simulation and field measurement are used to analyze the working resistance of the support,and it is concluded that during the mining period of the working face,the central end is affected by mining,and the mining stress is the largest.Combined with the field practice,the multi-dimensional coupling control technology scheme of"roof hydraulic fracturing+large diame-ter drilling pressure relief on solid coal side+grouting reinforcement on coal pillar side"is put forward.According to the field observation results,the peak stress of surrounding rock in stope decreased by 63.80％～84.56％,and the phenomena of strata behavior such as large deformation of mining roadway side were obviously alleviated.The surrounding rock collabo-rative control technology effectively ensures the overall stability of the surrounding rock in the stope,reduces the disaster risk in this area,and ensures the safe mining of the working face.关键词
深部厚煤层/数值模拟/采动应力场Key words
deep thick coal seem/numerical simulation/mining stress field分类
矿山工程引用本文复制引用
张春雷,范文昌,唐莹钰..深部厚煤层采动应力场特征及控制技术研究[J].陕西煤炭,2025,44(5):1-6,17,7.
