| 摘要 |
<p>The present invention relates to a front end reinforcement rock bolt comprising: a hollow body having a hollow inside to allow fluid to flow in through a front end which is an inlet wherein the fluid flows, whose part is pressed in a concave form in a circumferential direction, and whose pressed part is expanded by the fluid flowing in the hollow; a cap for a front end fixated and combined with the front end of the hollow body to connect a fluid supply pipe to inject the fluid; and a front end reinforcing part equipped on an outer surface of the front end of the hollow body in order to prevent a front end of the hollow body from being damaged as a pressure of the fluid flowing in the hollow of the hollow body through the fluid supply pipe is concentrated on the front end of the hollow body. The present invention has the effects of reducing time and costs to manufacture a rock bolt by reducing a length of a cap for a front end, and prevents the front end of the rock bolt from being damaged by a fluid flowing inside a hollow body of the rock bolt to install the rock bolt from being leaked to the outside of the hollow body.</p> |
