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    • 7. 发明专利
    • Previously receiving material installation method
    • JP5290668B2
    • 2013-09-18
    • JP2008222926
    • 2008-08-29
    • 株式会社熊谷組株式会社ファテック
    • 茂治 岩永光雄 益田昭浩 中北俊文 広瀬定雄 宇野幸雄 垣内守 平林
    • E21D9/04E21D9/06E21D9/08E21D9/12
    • PROBLEM TO BE SOLVED: To provide a method which enables a plurality of forepiling materials to be efficiently installed in natural ground ahead of a cutting face without use of an expensive drilling bit. SOLUTION: In the method for installing the forepiling material, when the forepiling material is installed by being inserted in a direction crossing an internal wall surface toward the natural ground ahead of the cutting face from a boundary section between the cutting face of a tunnel cavity section and the internal wall surface of the tunnel cavity section, the plurality of forepiling materials are installed in such a manner as to be arranged at intervals in a direction along the circumferential direction of the inner wall surface of the tunnel cavity section in the boundary section. A device 1 for installing the forepiling material includes a pipe (outer pipe 2) as the forepiling material, and a push-in device 6 which pushes the pipe into the natural ground by bringing the cutting face into contact with a blade provided at the leading end of the pipe. Leading ends of the plurality of forepiling materials are positioned at intervals in a direction along the boundary section by means of the plurality of devices 1. After that, the plurality of forepiling materials are inserted in the direction crossing the inner wall surface toward the natural ground ahead of the cutting face from the boundary section. Thus, the plurality of forepiling materials are installed in such a manner as to be arranged at intervals in the direction along the circumferential direction of the inner wall surface of the tunnel cavity section. COPYRIGHT: (C)2010,JPO&INPIT
    • 10. 发明专利
    • Ventilation channel opening and closing device of the tunnel soundproof wall
    • JP5306875B2
    • 2013-10-02
    • JP2009080248
    • 2009-03-27
    • 株式会社熊谷組
    • 俊文 広瀬雅直 大脇茂治 岩永光雄 益田誠一 近藤
    • E21F17/12E21F1/14
    • PROBLEM TO BE SOLVED: To provide a ventilation passage opening/closing device for a tunnel sound insulation wall which facilitates mounting work on the tunnel sound insulation wall. SOLUTION: The ventilation passage opening/closing device for the tunnel sound insulation wall includes a hollow casing 6, a through-hole 13 on one side, a through-hole 15 on the other side, an opening/closing body 7, a ventilation passage pipe 17 on one side, and a ventilation passage pipe 18 on the other side. One side of the hollow casing 6 is open, and the through-hole 13 on one side is provided on the face plate 12 on one side of the casing 6 which is opposed to the surface 11 on one side of the tunnel sound insulation wall 3. The through-hole 15 on the other side is provided on the face plate 14 on the other side of the casing 6 which is opposed to the face plate 12 on one side of the casing 6. The opening/closing body 7 is provided so that it can come into and go out of the casing 6 through the medium of the opening 10 of the casing 6, and the opening/closing body 7 opens and closes the ventilation passage 16 between the through-hole 13 on one side and the through-hole 15 on the other side. The ventilation passage pipe 17 on one side and the ventilation passage pipe 18 on the other side are provided so that they are communicated with the through-hole 13 on one side by projecting from the face plate 12 on one side of the casing 6 to the outside of the casing 6. The casing 6 is mounted on the surface 11 on one side of the tunnel sound insulation wall 3 so that the face plate 12 on one side can block a sound insulation wall through-hole 20 in a state where the ventilation passage pipe 17 on one side penetrates the sound insulation wall through-hole 20 which is formed on the tunnel sound insulation wall 3. COPYRIGHT: (C)2011,JPO&INPIT