IMMERSED TUNNELING METHOD FOR IMMERSED TUBE AND ITS APPARATUS

摘要

PPROBLEM TO BE SOLVED: To provide an immersed tunneling method for an immersed tube and its apparatus capable of combining the immersed tube with floats in the case of immersing the immersed tube, at the same time, mounting a tube operating winch on the floats to improve stability in the case of the operation of the tube, positioning the immersion of the immersed tube with high accuracy and carrying out installation work even in the case of high ocean waves. PSOLUTION: The immersed tube A fixing the floats 10 having the upper surfaces of them located on the surface of the water to four corners in the case of the immersion of the immersed tube is towed to a plate to be immersed, tube operating wires 19 of the tube operating winch 11 on the floats 10 are connected to a plurality of sinkers 37 installed in the water, and the immersed tube A is immersed in a predetermined installation position by pouring water inside to the immersed tube A while adjustably operating the tube operating winch 11 for a positional relation in every direction of the immersed tube A. PCOPYRIGHT: (C)2004,JPO&NCIPI