The method of construction (KY-5 Pipejacking and propulsion method) and apparatus for propulsion based on soft and weak layer soil

摘要

The present invention is connected to the rear of the propulsion leading pipe (F) and said propulsion leading pipe (F) consisting of a device for installing a foundation of concrete (14) layer of the bottom, and apparatus for the propulsion lead tube forward and corrections a built-in secondary steel pipe (D) and, with the spiral steel pipe (G) is installed on a rear surface of the auxiliary steel pipe (D), gravel concrete 14, the outer lower portion of the auxiliary steel pipe (E) and the spiral steel pipe (G) is installed, is the space part (J) for forming the base layer, is formed on the rear of the spiral steel pipe (G) the soft ground press-driving method of construction using the advancement device (E) for forward movement by the step-down of the tube forward ( KY-5 promotion process) and the device.