RU18735U1 - FORMWORK FOR JUMPING THROUGH A WELL - Google Patents

Abstract

1. Formwork for erecting a lintel through a well, mainly for isolating emergency underground workings, including a formwork casing supplied through the well and a mechanism for supplying a working agent to the formwork space, characterized in that the formwork casing is provided with a capsule and is made in the form of a garland of inflatable tori placed one above the other, and the mechanism for supplying the working agent is made in the form of a collector located on the central axis of the tori, connected with the tori by means of sleeves placed radially in the e spokes in respective torus plane at the same angle relative to each druga.2. The formwork according to claim 1, characterized in that the adjacent inflatable tori are interconnected by means of flexible connections.

Description

  ° - - - -E 21 t 5/00

- DECK FORMING JACKS

The belt model relates to mining and can be used for remote erection of a bridge in hard-to-reach places of mine workings through a well in the fight against underground fires.

A known method of erecting insulating: lintels in mine workings, including formwork with an elastic waterproof film, forming a visor around the perimeter of the mine, and filled with a hardening mortar (autosweet.SSSR I221386, class E 21 P 5/00, 1986).

There is also a method of isolating an emergency section during underground mining, in which the device is used in

in the form of a closed folding formwork pivotally mounted on pipe supports, consisting of metal gratings and airtight permeable fabric, into which the aggregate is remotely fed

(ed. certificate. USSR # 1668693, class E 21 P 5/00, I99I).

The disadvantage of the technical devices used in the known methods is that they cannot be mounted in the mine workings, into which, due to the fire, it is impossible to penetrate the flight chamber, 1ShM.

The purpose of the invention is to increase the efficiency of extinguishing underground fires in inaccessible places due to the provision of

tightness of remotely erected jumpers.

This goal is achieved by the fact that the formwork, in order to erect a jumper through the well, contains the feed through the Squash

. : i, g i; G, ..:. , -. ;

the bulb is provided with a capsule and is made in the form of a garland of colored tori placed one above the other, and the mechanism for supplying the working agent is made in the form of a collector placed along the central axis of the tori, connected with the tori by sleeves radially placed in the form of spokes in the plane of the corresponding torus under the same angle relative to each other. Moreover, adjacent inflatable tori are connected by means of flexible connections.

The use of the proposed formwork allows you to build jumpers through the borehole in hard-to-reach places without the presence of ice, which is very important in an underground fire. The elastic formwork, made in the form of a garland of stacked tori, allows to provide the necessary sealing with the erect bridge and, thereby, to prevent the penetration of fire gases into the mine workings or backflows of fresh air in the fire section. In addition, the elastic garland of tori can be easily packed into a capsule. For feeding it through the well with the subsequent reliable unfolding of it with compressed gas.

Figure 1 shows a freely straightened formwork, a longitudinal section; figure 2 - formwork, embedded in the cross section of the mine.

The formwork for erecting a lintel through a well contains fabric tori I located one above the other and fastened by flexible ties 2, for example, in the form of laces or cords. Along the central axis of the tori I, a tubular collector 3 is placed, which, through the sleeves 4, is in communication with the tori I.

Formwork is used as follows.

pipes. The casing made in the form of a garland of tori I is rolled up and put into a special detachable capsule

(not shown), and the collector 3 is attached to the end of the drill pipe 7. Then, the capsule with the formwork packed into it is lowered through the well 5, by means of the drill pipe 7 until it enters the mine 6. Here, the capsule is automatically opened, for example, by hitting soil working 6, after disclosure

capsules into the drill pipe 7 supply compressed gas, by means of which the tori I of the shell formwork are straightened and independently stacked one by one due to the limiting action of the flexible connections 2 and sleeves 4 radially arranged in the form of spokes, which in this case play the role of centering stiffeners of calibrated length, . Then, a pulp-shaped solid ferruginous filler is pumped into the collector 3 through the drill pipe 7, which along the sleeves 4 enters the inner space of the tori I, while the tori I expand and are tightly pressed against the side walls of the mine working.

The proposed formwork allows you to increase labor safety and reduce material costs for the construction of jumpers in hard-to-reach places through wells from the surface.

Patent Author

M.A. Chernova

A.E. Chuprikov

Yu.A. Fedchenko S.A. Chuprikov

Claims (2)

1. Formwork for erecting a lintel through a well, mainly for isolating emergency underground workings, including a formwork casing supplied through the well and a mechanism for supplying a working agent to the formwork space, characterized in that the formwork casing is provided with a capsule and is made in the form of a garland of inflatable tori placed one above the other, and the mechanism for supplying the working agent is made in the form of a collector located on the central axis of the tori, connected with the tori by means of sleeves placed radially in the e spokes in the plane of the torus corresponding to the same angle relative to each other. 2. The formwork according to claim 1, characterized in that the adjacent inflatable tori are interconnected by means of flexible connections.