| 摘要 |
The present invention relates to a special terminal apparatus for chemical grouting using air. According to the present invention, two or more spray holes are formed as an air injection means is connected to a double pipe grouting rod and extends to a lower end of appearance, and the spray holes can be opened and closed when liquid chemical is rapidly mixed by air injection; the liquid chemical is uniformly sprayed through the spray holes; infiltration grouting is performed into the ground; and chemical grouting is stopped by providing a chemical mixture spraying cap of which a bottom is sealed. |
