| 摘要 |
The invention relates to a bolt which, if required, has an axial through-hole for injections into drill holes or crack grouting in overground and underground construction work or acts as a plug on which is arranged, for the purpose of anchorage in the wall, a deformable body 3 which is held at one end against axial displacement by means of a shim 10 and a clamping washer 4, the spring tongues 5 of which are supported against the surface of the bolt 1. The mounting of the outer ring 4' and, if required, also final tightening is carried out with the aid of a suitable tool, the body 3 being compressed and, in the process, expanding in outside diameter. The bolt 1 can be removed from the wall or the structural element by removing the outer clamping washer 4' or by breaking off that end of the bolt 1 which projects from the wall. <IMAGE>
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