| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device for vertically discharging soil in a jacking construction method capable of providing a large soil discharging capacity, providing no pulsation, capable of discharging the soil at a stable soil discharge pressure, using a simple mechanism, providing improved maintainability, and stably discharging the soil without damaging devices even if sharp gravels (crushed stones) are mixed therein. SOLUTION: In this soil discharge method in the jacking construction method for feeding a discharged slurry from an underground construction site to a vacuum device installed on the ground through a shaft, a viscosity pump 7 discharging soil by utilizing a viscosity resistance produced between a rotor 8 and a carrying fluid by rotating the rotor 8 therein is installed in a vertical pipe inside the shaft. By the discharging force of the viscosity pump 7, the discharged slurry from the underground construction site is fed onto the ground through the shaft. COPYRIGHT: (C)2006,JPO&NCIPI |
