| 摘要 |
PURPOSE: A grout injection device capable of selecting either continuous injection or step injection is provided to quickly and conveniently inject grout and prevent the backflow of grout. CONSTITUTION: A grout injection device(100) comprises main injection pipes(110), a cap(120), spacer rings(130), discharge holes(140), and inlet holes(150). The cap wholly seals the front side of the main injection pipes. The spacer rings are fitted at regular intervals in each main injection pipe to divide the main injection pipe into a plurality of sections. The discharge holes are formed in one of the main injection pipes existing within one of the divided sections so that the position of the discharge holes is diversified according to section. The inlet holes are formed on the rear end of the main injection pipes to put in grout. |
