公开(公告)号：US11761335B1

公开(公告)日：2023-09-19

申请号：US18311525

申请日：2023-05-03

申请人： LIAONING UNIVERSITY

发明人： Yishan Pan ,  Lianpeng Dai ,  Aiwen Wang ,  Jun Liu

IPC分类号： E21F17/18

CPC分类号： E21F17/185

摘要： A model selection method for a hydraulic support includes: determining a surrounding rock-support mutual feedback equilibrium curve under a first equivalent in-situ stress and a surrounding rock-support mutual feedback equilibrium curve under a second equivalent in-situ stress, according to the first equivalent in-situ stress, the second equivalent in-situ stress, a stress of a fracture zone on a softening zone under the first equivalent in-situ stress, and a stress of the fracture zone on the softening zone under the second equivalent in-situ stress; determining a support strength of a to-be-selected hydraulic support on the surrounding rock and a minimum expansion and contraction quantity required by a movable column according to the equilibrium curves; determining the residual burst energy that needs to be absorbed by the hydraulic support; and determining the hydraulic support matched with roadway. The method quantitatively achieves parameterized model selection of the bursting-preventing hydraulic support of roadway.