| 摘要 |
<p>Shotcrete gun consisting of a concrete container (1) and a spraying device, such as a worm screw (2), and a nozzle (3) for pressurized air. The whole shotcrete gun assembly is mounted on a traversing mechanism allowing the shotcrete gun to be shifted in the horizontal, vertical and depthwise directions beside the element to be shotcreted.</p> |
