SU969904A1 - Anchor bolt for supporting inter-chamber pillar composition for securing anchor bolts - Google Patents

Description

(54) ANCHOR BO.PT FOR FIXING THE MEASURING CHAMBER

one

Inventive 1 relates to the construction of underground structures, namely, anchor bolts for fastening the inter-chamber pillar.

A known anchor includes a hollow rod with an injectable lock, an elastic cuff, a support plate and a tension nut}.

However, such an anchor provides compression of the rock on one side only, therefore its use for fastening between the chamber pillar is not effective enough.

The closest in technical essence and the achieved result to the proposed is an anchor bolt for fastening between the chamber pillar, including an anchor bar installed in the well with a head at one end and a threaded shank on the other, elastic cuff, support plates, tension nut and monolithic anchor bolt 2

However, the known anchor bolt does not provide uniform compression of the pillar, which reduces the efficiency of attachment.

The purpose of the invention is to increase the efficiency of fastening of the rear sight due to its even compression.

Whole

This goal is achieved by the fact that the anchor rod is provided with an outer tube with transverse protrusions on the outer surface, the tube being shorter than the rod, and the elastic cuff is installed outside the tube at the end, adjacent to the rod end, and the monolithic solution is placed in the gap

10 Between the pipe and the walls of the well, as well as in the gap between the tube and the rod.

The drawing shows an anchor bolt mounted in between the chambers

15 pillars.

The anchor bolt consists of a rod 1 and an outer pipe 2, the latter being shorter than the rod 1. On one side of the pipe there is a support

20 tile 3, on the other - elastic cuff 4. On the outer surface of the pipe 2, transverse projections 5 (for example, from welded steel wire) are viewed. Rod 1 has 25 head b, throat 7 with thread, support plate 8 and nut 9. The gap between the outer pipe 2 and the borehole wall 10 in the rear sight 11 is filled with a monolithic, for example, cement mortar 12. The gap 13 between the outer

30 pipe 2 and bar 1 can also

Claims (2)

Claim 1. Anchor bolt for attaching the “inter-chamber” whole, including an anchor rod installed in the well with a head on one end and a threaded shank on the other, an elastic sleeve, support plates, a tension nut and a monolithic anchor bolt solution, characterized in that, with In order to increase the efficiency of fixing the rear sight due to its uniform compression, the anchor rod is equipped with an external pipe with transverse protrusions on the outer surface, while the pipe is made shorter than the rod, and the elastic cuff is installed outside the pipe s at the end adjacent to the shank rod, and concreted razmoschen solution in the gap between the pipe and the borehole wall. 2. Anchor bolt according to claim 1, characterized in that the monolithic solution is placed in the gap between the pipe and the rod.