公开(公告)号：US11959383B2

公开(公告)日：2024-04-16

申请号：US17752842

申请日：2022-05-24

申请人： Taiyuan University of Technology

发明人： Guorui Feng ,  Yijiang Fan ,  Pengfei Wang ,  Chenliang Hao ,  Xiaoze Wen ,  Jun Guo ,  Jinwen Bai ,  Tingye Qi ,  Jianan Liu ,  Linjun Zhu ,  Changquan Wu

IPC分类号： E21C41/18 ,  E21D20/02

CPC分类号： E21C41/18 ,  E21D20/028

摘要： A method for carrying out grouting between adjacent gateroads in internal-staggered split-level coal mining. A return air gateroad of a stoping face and an inlet air gateroad of a heading face are not on the same level. The return air gateroad of the stoping face is arranged along a roof of a coal seam. The inlet air gateroad of the heading face is arranged along a floor of the coal seam. There is a height difference between the return air gateroad and the inlet air gateroad in a vertical direction. During the construction process, the inlet air gateroad is excavated at a delay distance of 180-200 meters from the return air gateroad. The drilling and grouting are performed while excavating the roadway, where grouting holes are arranged in a single row. A device for implementing the method is also provided.