| 摘要 |
<p>A packer for sealing a boring hole, installed on an entrance of a boring hole for inserting a subterranean anchor, according to the present invention, includes: an anchor attaching cover unit attached and compressed to the outer surface of the subterranean anchor; a boring hole attaching cover unit integrally formed with the anchor attaching cover unit to be attached and compressed to the inner surface of the boring hole; a fluid injection chamber formed between the anchor attaching cover unit and boring hole attaching cover unit; a packer main body having a hollow portion penetrated back-and-forth on the center of the anchor attaching cover unit, to be inserted to the subterranean anchor; and a fluid injection member connected to the packer main body to inject and discharge a fluid into and out of the fluid injection chamber.</p> |
