SU1536010A2 - Method of setting a tubular bolt - Google Patents

Abstract

The invention relates to mining and is intended to fasten mine workings. The goal is to reduce the cost of drilling a hole under the anchor and prevent jamming when it is inserted into the hole. For this, a spiral groove is provided on the outer surface of the anchor tube. The depth of the gutter is not less than the thickness of the elastic band placed when winding on the pipe inside the gutter. During the explosion, the outer surface of the tape is pressed tightly against the walls of the hole, firmly securing the anchor in the array, ensuring its elastic sealing over the entire length of the hole. Due to the possibility of reducing the diameter of the hole and the smooth insertion of an anchor into it, the material costs and the laboriousness of installing an anchor are reduced.

Description

1 (61) 1352070

(21) 4402271/22-03

(22) 04/04/88

(46) 01/15/90. Bul P 2

(71) East Research Institute of Mining

(72) E.M. Kozhevnikov, P.I.Sentsov, V.V.Lloko and V.V.Arapov

(53) 622.281.74 (088.8)

(56) USSR Copyright Certificate No. 1352070, cl. E 21 D 20/00, 19 “6.

(54) METHOD OF INSTALLING A TUBULAR ANCHOR

(57) The invention relates to mining and is intended to fasten mine workings. The goal is to reduce the cost of drilling a hole under the anchor and prevent jamming when it is inserted into the hole. For this, a spiral groove is provided on the outer surface of the anchor tube. The depth of the gutter is not less than the thickness of the elastic band placed when winding on the pipe inside the gutter During the explosion, the outer surface of the tape is pressed tightly against the walls of the hole, firmly securing the anchor in the array, ensuring its elastic sealing over the entire length of the hole. Due to the possibility of reducing the diameter of the hole and the smooth insertion of an anchor into it, the material costs and the laboriousness of installing an anchor are reduced.

"

(L

WITH.

The invention relates to the fastening of mine workings, and in particular to methods of installing explosive anchors.

The aim of the invention is to reduce the cost of drilling a hole under the anchor and to prevent jamming when inserting it into the hole.

The process for installing the tubular anchor is as follows.

A spiral groove is provided on the outer surface of the anchor tube. The depth of the groove is not less than the thickness of the elastic tape that is wound onto the pipe, and when wrapped, the ribbon is inserted into the groove. At the ends of the anchor, the tape is fixed with spring rings, after which the explosive charge (detonating cord) is distributed over the length of the pipe into the tube cavity and filled

the remaining gap is water, and the ends of the pipe are sealed with plugs. The prepared anchor is installed in the hole. When the detonating cord detonates, the anchor tube flares up in the hole with the formation of a spiral blow up between the turns of the elastic band. The outer surface of the tape tightly presses against the walls of the hole, firmly securing the anchor p of the array, providing an elastic embedment of the anchor-4 for the entire length of the hole. Due to the possibility of reducing the diameter of the hole and the smooth introduction of the anchor into the hole, the material costs and the laboriousness of installing the anchor are reduced.

Claims (1)

The invention The method of installation of a tubular anchor according to ed.St. V 1352070, about tl and Cn WITH about go 315360104 due to the fact that, in order to carry out the spiral chute, the depth reducing the cost of drilling a borehole which is not less than the thickness of the elastic anchor and preventing jamming tape, while winding a levan when inserting it into the borehole, the nats on the pipe put it in the groove, the outer surface of the anchor pipe