公开(公告)号：US11078791B2

公开(公告)日：2021-08-03

申请号：US17110412

申请日：2020-12-03

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Xuesheng Liu ,  Deyuan Fan ,  Yunliang Tan ,  Kang Yang ,  Shilin Song ,  Yunhao Wu ,  Xuebin Li ,  Xin Wang

IPC: E21D21/00 ,  E21D20/02

Abstract: It discloses a grouting bolt-cable composite beam and supporting method for advanced support of fractured surrounding rock in deep coal mines. The quadrate plates are fixed at both ends of the steel beam, the anchor cable holes are arranged in the center of the steel beam and the quadrate plates, and the diameter of anchor bolt holes should be larger than that of the grouting cables. There are four anchor bolt holes on each quadrate plate, and each anchor bolt hole corresponds to a anchor plate, the horizontal surface of the anchor plate is close to the quadrate plate, and the arc parts of the four anchor plates are all facing the center of the quadrate plate.

公开(公告)号：US20210087931A1

公开(公告)日：2021-03-25

申请号：US17110412

申请日：2020-12-03

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Xuesheng Liu ,  Deyuan Fan ,  Yunliang Tan ,  Kang Yang ,  Shilin Song ,  Yunhao Wu ,  Xuebin Li ,  Xin Wang

IPC: E21D21/00 ,  E21D20/02

Abstract: It discloses a grouting bolt-cable composite beam and supporting method for advanced support of fractured surrounding rock in deep coal mines. The quadrate plates are fixed at both ends of the steel beam, the anchor cable holes are arranged in the center of the steel beam and the quadrate plates, and the diameter of anchor bolt holes should be larger than that of the grouting cables. There are four anchor bolt holes on each quadrate plate, and each anchor bolt hole corresponds to a anchor plate, the horizontal surface of the anchor plate is close to the quadrate plate, and the arc parts of the four anchor plates are all facing the center of the quadrate plate.