采矿与岩层控制工程学报2024，Vol.6Issue(1)：5-17,13.
浅埋综采工作面运输巷主动式超前支护研究
Active forepoling of transportation roadway in shallow buried fully-mechanized mining face
摘要
Abstract
There are many problems of using the single hydraulic prop to strengthen support in transportation roadway of shallow fully-mechanized mining face,such as inconsistency between mining and supporting opera-tions,high labor intensity and hazard risks for workers,and difficulty in reducing the number of workers in ad-vance areas of mining face.Taking the 52305 working face of Yujialiang Coal Mine as the engineering back-ground,and using a combination of field measurement,numerical simulation and theoretical methods,the mining pressure in the transportation roadway with the reinforcement support of the single hydraulic prop in advance area was measured,and the stability of roadway in advance area under the reinforcement support conditions of single hydraulic prop and active reinforcement support with bolts(cables)are compared.Finally,theoretical calculations were conducted on the supporting parameters for the transportation roadway,and the adaptability and safety of on-site support were verified.The results show that the surrounding rock of the transportation roadway of the 52305 working face is categorized to be relatively stable and stable type.The bearing capacity of the anchor bolts(cables)is within 85％of the rated load,and the stress distribution on both sides is basically symmetrical under the reinforcement support condition of the single hydraulic prop.The convergence displacement and loosening zone of the surrounding rock are very small.The stability of the surrounding rock is good.In the section affected by the front abutment pressure,the single hydraulic prop mainly has a strengthening support effect on local rock layers within 0.6 m thick of the roof,which is much smaller than the strengthening zone of anchor and cable sup-port.Cancelling the single hydraulic props,the surrounding rock along the transportation roadway can still main-tain safety and stability.Field trial at the 52305 working face of Yujialiang Coal Mine verified the reliability of the research results.关键词
浅埋综采工作面/运输巷/支护参数/主动式超前支护/现场实测Key words
shallow buried fully mechanized mining face/transportation roadway/support parameters/active forepoling/field measurement分类
矿业与冶金引用本文复制引用
罗文,黄庆享,范东林,陈苏社,杜君武,王生彪,王庆雄,王巍,郭强..浅埋综采工作面运输巷主动式超前支护研究[J].采矿与岩层控制工程学报,2024,6(1):5-17,13.基金项目
国家自然科学基金资助项目(52074211,52204154) （52074211,52204154）
陕西省自然科学基础研究计划资助项目(2019JLP-08) （2019JLP-08）
