Sleeve launching device and shield launching construction method

• Main Authors: PENG LEI, GONG HONGXIANG, XU JIAN, LIU JIAN, YANG CAI, CUI YONGCHAO, WANG TING, SHEN YAWEI, ZHOU BENJUN
• Format: Patent
• Language: Chinese; English
• Published: 14.07.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention discloses a sleeve launching device and a shield launching construction method.The sleeve launching device comprises an embedded steel ring, a first sleeve, a second sleeve, an elastic plate and at least two sets of steel wire brushes, the embedded steel ring, the first sleeve and the second sleeve are detachably and fixedly connected in sequence, and one end of the embedded steel ring is arranged on a side wall tunnel portal wall in a protruding mode and is coaxial with a side wall tunnel portal; the first sleeve, the second sleeve and the elastic plate are all coaxially arranged with the embedded steel ring, the second sleeve and the first sleeve are equal in inner diameter and outer diameter, the elastic plate is annular, the peripheral edge of the elastic plate is fixedly connected with the inner wall of the second sleeve, and the inner diameter of the elastic plate is smaller than the diameter of a shield tunneling machine shell; the steel wire brushes are arranged at intervals, each steel