SU1442666A1 - Device for securing mine workings - Google Patents

Abstract

The invention relates to the mining industry. The goal is to improve the quality of work in the construction of cement coatings on the walls of the mine by preventing the deflection of the shell formwork. Flooring inflatable formwork-shell 3 devices have internal 4 and external 5 walls. A spacer 10 in the form of cross-shaped hollow rods 13 made of an elastic-elastic material with shoes 12 is installed in the internal cavity of the shell formwork 3. After the shell 3 is filled with compressed air and the fixed hole 2 is taken in shape, fixture 10 is folded in the last form and it is filled with compressed air. The device 10 is flattened, and the shoes 12 are pressed against the inner wall 4, ensuring its fixation and preventing it from bending into the well 2. 2 Il.

Description

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it wall 4 of the lengthy shell 3, thereby ensuring its fixation. Then, a quick-hardening mixture is pumped into the cavity of the shell 3 through the pipeline 9. As a result of these actions, in the shell 3 filled with a hardening mixture, the pressure of compressed air rises due to a decrease in free volume. The check valve 6 is triggered and releases part of the air into the atmosphere, keeping the sheath 3

The invention relates to the mining industry and can be used in the fastening of workings carried out with help of drilling units.

The purpose of the invention is to improve the quality of work in the construction of cement coatings on the walls of the excavation by preventing the deflection of the casing.

FIG. 1 shows the flow chart of the mounting of the well proposed

device longitudinal section; in fig. 2-10 set pressure. The check valve 8, the same, is a transverse section of the ground, the output of compressed air into the pipe. The device includes a high-speed mixing box, which is mixed into the supply pipe 9, and is mixed with it from the mine working. The spacing device 10 in section 2 is an elastic-elastic long-length shell 3, filled with a mixture, pre-shell 3, having an inner 4 and external deflection of the inner wall 4, exposed wall 5, connected between the membranes 3 inside the well 2. Then, at opposite ends and forming a full filling of the cylindrical cavity, there is a closed cylindrical cavity. On the shell 3 with a high-speed mixture, its upper end of the shell 3 is placed back-setting and hardening to the standard valve 6 for supplying compressed air of durability from the spacer device of the air line 7 and the return valve 20 releasing compressed air and removing 8 for supplying high-speed it from the well 2 and the ventilation-mixture from the injection pipe 9 detachment 1 for further use in its preparation (not showing. The inner wall 4 of the sheath 3 on). The device also contains a spacer after disconnection from the outer wall 5 of the device 10, consisting of a central-removed from a fixed well to a remote duct (collector) 11, an outboard drift 14. At the same time, it is fixed in the form of a tube and the connected well is considered complete. In bonded bashmaks 12, by means of the hollow qualities of an elastic-elastic material, elastic-elastic crosses can be used 13. rubber cord fabric

The device works as follows: or metal-chrome fabric, which is under

If it is necessary to fix the well, 0. The pressure of the air of 0.6 MPa becomes elastic, as a fast 2, drilled onto the haulage roadway-4 from the mine workings 1 of the upper horizon, the elastic-elastic long shell 3 is folded into it and unfolded over the entire length of the well 2. Then connect the casing 3 through the return valve 6 to the air line 7 and begin to pump with compressed air. In this case, the shell 3 is expanded and tightly attached to the outer wall 5 to the walls of the well 2. After filling the shell 3 with compressed air and taking the shape of the well 2 into the latter, the spacer 10 is folded in the folded form and filled with compressed air through the central air duct And, previously

40

The mixture can be used any known mixture that meets the specified properties.

Claims (1)

Invention Formula A device for securing mine workings, consisting of hollow inflatable formwork-shell with internal and external walls, characterized in that, in order to increase the quality of work in the construction of cementing coatings on the production walls by preventing deflection of the shell-formwork, it is equipped with a spacer, made in the form of a cross-switch on it the air line of shaped hollow rods from elastic-non-shown (not shown). At the same time, the adaptation of the elastic material with basmays, which 10 is straightened, as a result of which the tower is installed into the internal cavity of the inflatable bag 12, is filled with 13 compressed air through the crosses with the possibility of intercom compressed air, against the internal wall of the shoe. it wall 4 of the lengthy shell 3, thereby ensuring its fixation. Then, a quick-hardening mixture is pumped into the cavity of the shell 3 through the pipeline 9. As a result of these actions, in the shell 3 filled with a hardening mixture, the pressure of compressed air rises due to a decrease in free volume. The check valve 6 is triggered and releases part of the air into the atmosphere, keeping the sheath 3 set pressure The check valve 8 by compressing air pressure of 0.6 MPa becomes elastic, as a fast-acting The mixture can be used any known mixture that meets the specified properties. Invention Formula A device for securing mine workings, consisting of hollow inflatable formwork-shell with internal and external walls, characterized in that, in order to increase the quality of work in the construction of cementing coatings on the production walls by preventing deflection of the shell-formwork, it is equipped with a spacer, made in the form of cruciform hollow rods of elastically elastic material with bashmyky, which is installed in the internal cavity of the inflatable formwork with the possibility of interaction of the shoes with the inner her wall.