HORIZONTAL MULTI-AXIS UNDERGROUND CONTINUOUS WALL EXCAVATOR FOR LOW OVERHEAD CLEARANCE

摘要

PROBLEM TO BE SOLVED: To enable installation even in a construction site with a low overhead clearance without excavating an installation ground of a horizontal multi-axis underground continuous wall excavator.SOLUTION: A turntable 2 where internal and external rings 2c, 2b are relatively rotated is incorporated in the upper part of a horizontal multi-axis underground continuous wall excavator body 1, and the inner ring 2c is built in the excavator body 1 and fixed. Movable pulleys (running block) 3 are disposed at intervals in a central space of this turntable 2, and the movable pulleys 3 and the turntable 2 are received in the inside of the horizontal multi-axis underground continuous wall excavator 1 to lower an overall height. Accordingly, even if it is a construction site of a small overhead clearance, it can be installed and constructed without excavating the installation ground and lowering installation surface.SELECTED DRAWING: Figure 1