| 摘要 |
PURPOSE:To fill densely cement milk into the voids of the ground by resonantly vibrating the resonance pipe provided to a cement milk injection pipe by means of the pressure of the cement milk passing through the resonance pipe. CONSTITUTION:Cement milk in a tank 1 is sent under pressure through a hose 3 into the injection pipe 4 of an injector 7 by means of a pump 2 and injected into the voids of the ground 6 through a resonance pipe 5. By the resonant vibration of the pipe 5, pressure pulse is applied to the cement milk and a higher instantaneous pressure than the discharge pressure of the pump 2 is obtained intermittently. The cement milk can thus be densely filled into the voids of the ground 6. |
