TELESCOPIC ARCH CENTER TYPE SECONDARY LINING METHOD OF TUNNEL

• Main Authors: HONDA HIDEO, KOMURO MASAHIRO, AOKI TADASHI, ISHIZAKA HITOSHI, OKUBO TSUNEHIDE, ASANUMA YASUKI, INOUE MASAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 14.03.2019
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

To provide a secondary lining method of a tunnel using a telescopic arch center which enables a worker to smoothly move in front/rear and right/left directions on a tunnel floor and to enhance an efficiency of a secondary lining work.SOLUTION: A conveyor covering portion 40 which is suspended from a gantry carriage 10 and covers a continuous belt conveyor 14 and on which a worker can move in front/rear and right/left directions of a tunnel is provided. Since the conveyor covering portion 40 is suspended from the gantry carriage 10 and moves integrally with the gantry carriage 10, the worker can freely move on a tunnel floor surface 16 in the front/rear and right/left directions in a section where a secondary lining work is performed, so that it is more advantageous in enhancing a work efficiency of the secondary lining work of the tunnel using a telescopic arch center.SELECTED DRAWING: Figure 1 【課題】トンネル床面上で作業員がトンネルの前後左右方向に円滑に行き来でき、２次覆工作業の効率を高める上で有利なテレスコピックセントル使用でのトンネルの２次覆工工法を提供すること。【解決手段】ガントリー台車１０より吊り下げられ連続ベルトコンベア１４を覆いその上を作業員がトンネル前後左右方向に移動できるコンベア被覆部４０を設けた。コンベア被覆部４０はガントリー台車１０より吊り下げられ、ガントリー台車１０と一体に移動するので、２次覆工作業を行なう区間で、トンネル床面１６を前後左右方向に自由に移動でき、テレスコピックセントル使用でのトンネルの２次覆工作業の作業効率を高める上でより有利となる。【選択図】図１