SU926315A1 - Method for installation of reinforced concrete suspended roof support - Google Patents

Description

I

The invention relates to methods for installing reinforced concrete anchor in mine workings.

There is a method of installing reinforced anchor lining, including drilling holes, filling them with concrete using a pneumatic pressure charger or mortar pump and installing anchors in them 13.

The disadvantage of this method is that during the drilling process dust is generated that pollutes the air, and also is used for concrete as a filler for building materials.

Another method of installing reinforced concrete anchors is also known, including drilling holes, filling them with an inert aggregate concrete mixture and water, which is prepared after each drill hole is finished drilling, and introducing anchors into the concrete-filled holes of boreholes 12}.

The disadvantage of this method is in the calculation of building materials for an inert aggregate, which is more expensive to fix, and also in the dustiness of the air when drilling holes for anchors.

The purpose of the invention is to reduce the cost of fixing and improving working conditions.

The goal is achieved in that the drill bit is drilled into the mixing chamber by means of an auger into the mixing chamber for use in the preparation of the concrete mix as an inert aggregate.

The drawing shows a diagram of the installation of reinforced concrete anchors ..

Reinforced anchor lining set as follows.

To secure the roof of the drill hole

Claims (2)

20 1 when drilling auger rod 2, while the drill fines, via auger rod 2, are directed through the cylinder 3 into the mixing chamber. 9 After drilling, the chamber and water are added to the chamber and mixed with auger rod 2. Then the auger Rod 2 is reversed by moving the solution through cylinder 3 into hole 1, while lowering the screw rod as the concrete mixture is filled, the cylinders 3 are moved apart. An anchor is inserted into the hole filled with concrete in the usual way. Further, the work cycle is repeated. The application of the proposed method makes it possible to improve the working conditions by collecting dust when drilling holes and to reduce the costs of heating by using as a drill breeze as aggregate for the concrete mix. The Invention Method A method for installing reinforced anchor lining, including drilling holes, filling them with a concrete mix from an inert aggregate, water and water, which is prepared after the end of the drill hole, and introducing anchors into concrete-filled holes, characterized in that In order to reduce the cost of fixing and improving working conditions, the drilling fines, when drilling holes, are guided into the mixing chamber by means of an auger for use in the process of preparing the concrete mix as an inert aggregate. Sources of information taken into account in the examination 1. Instructions for installing reinforced concrete rods. Chisinau, 1971, p. 23-25. 2. USSR author's certificate in application number 2 41758/03, cl. E 21 D 21/00, 1976 (prototype).