深部岩巷钻孔卸压支护技术研究与应用OA
Research and application of drilling pressure relief support technology in deep rock roadway
东庞矿11采区轨道巷位于2号煤层底板,巷道变形严重,经历多次整修,维护成本高.为控制巷道变形,开展了深部岩巷支护技术的研究.现场调研表明,11采区轨道巷变形大,锚杆索等支护体损坏严重.对巷道砂岩进行力学参数测试,其单轴抗压强度为23.7 MPa.围岩强度低、2号煤工作面的回采以及支护参数不合理等是造成巷道变形大的主要原因.分析表明,在煤岩体中施工钻孔后,可促进应力集中向深部转移,同时为巷道变形提供-定的缓冲,有利于巷道的稳定.由此,确定采用强力锚…查看全部>>
The track roadway of No.11 mining area in Dongpang Mine is located on the floor of No.2 coal seam.There was severe deformation and had undergone multiple renovations,resulting in high maintenance costs.To control tunnel deformation,research on deep rock roadway support technology was carried out.On site investigation showed that the deformation of the track roadway in the 11th mining area was severe,and the support bodies such as anchor rods and cables…查看全部>>
杜龙龙
河北煤炭科学研究院有限公司,河北邢台 054000||河北省矿井微震重点实验室,河北邢台 054000
矿山工程
深部岩巷剧烈变形卸压钻孔矿压观测支护参数
deep rock roadwaysevere deformationpressure relief drillingmine pressure observationsupport parameters
《煤炭与化工》 2024 (2)
25-28,4
冀中能源集团科技创新项目(2023JZ0318)
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