SKID INJECTION DEVICE UNDER PIPE-JACKING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a skid injection device under a pipe-jacking method capable of extending a skid well over a peripheral surface of a jacking pipe. ;SOLUTION: V-shaped reflective walls 16, air exhaust nozzles 6 and skid exhaust nozzles 5 are sequentially arranged at eight points in the circumferential direction of a main body 21 connected to a shield machine 1, and a void P to open backward is formed by providing a hood 7 on its outside. a plate spring 13 for backflow prevention is provided in a petal shape on a rear edge of the hood 7. An air supply pipe 12 provided with a ball valve 10 is connected to the air exhaust nozzles 6, a two liquid mixing and exhaust nozzle 11 provided with the ball valve 10 is connected to the skid exhaust nozzles 5, and an A liquid supply pipe 8a and a B liquid supply pipe 8b respectively provided with catch valves 9 are connected to the two liquid mixing and exhaust nozzle 11.;COPYRIGHT: (C)2001,JPO