SU872778A1 - Filling-in partition - Google Patents

Description

(54) BOOKMAN

one

I The invention relates to mining industry and can be used to isolate mine workings from a hydro-blocking array.

Known inflatable backfill permirps, including air bellows, elements of their attachment and device for sequential blowing of air bellows in the form of spring-loaded valves 1.

The disadvantages of such a jumper are low carrying capacity and the impossibility of repeated use in fencing the flip-flop array.

A known backfill liner includes hollowing blocks laid over the entire cross section and filled with a working agent (air), made of elastic material, a system of communication between the blocks and a supplying system with a working agent, executed in the form of tubes with non-return valves 2.

However, this formwork is characterized by insufficient stability from dynamic

impact on the jumper cast molded 91 of the array.

The purpose of the invention is to increase the stability of the jumper from the dynamic effect on it of the cast i, backfill array.

This goal is achieved in that water is additionally used as a working agent, and the jumper has perpendicular upper, side and lower blocks filled with air and water, and at least one central unit filled with air, whose cross-sectional shape is similar to that of a transverse section. section of production, with this, the central unit is made with a protruding part, and the peripheral, lower units

15 with vystupayuschimi oblique parts, installed in the direction of the filling array with respect to the remaining peripheral blocks, the system of communication of the blocks between themselves and the system of supplying the blocks, working

Claims (2)

20 are provided with a dividing box and a distributor connected to the tubes mounted on the support tripod, with the central unit communicating with the upper parts of the upper and side peripheral blocks through the tubes, dividing box and distributor. ; In addition, the protruding part of the central block is filled with a mushroom shape, the volume of which is 0.1-0.35 of the volume of the rest of the block. FIG. 1 shows a jumper, a general view; in fig. 2 is a view A of FIG. 1. A lintel 1 has lower 1, lateral 2 and upper 3 peripheral blocks, filled with air and water, and at least one air-filled center unit 4, the cross-sectional shape of which is similar to the shape of the cross-section of the excavation. The central unit is complete with a protruding part 5, and peripheral lower units 1 with protruding bevelled parts 6, installed in the direction of the filling array 7. The communication system between the blocks and the system of supplying the blocks with a working agent are in the form of tubes 8 with check valves and are equipped with a separator box 9 and a distributor 10 connected to the tubes 8 and mounted on the supporting tripod 11. The central unit 4 communicates with the upper parts of the upper 3 and side 2 peripheral blocks via tubes 12, separating 9. The lower box portion 2 and the blocks 3 are interconnected by tubes 13. The projecting portion 5 of the central unit is formed of mushroom shape, the volume of which is equal to the remaining volume of 0.1-0.35 chasga block. The installation, the preparation of the jumper for operation and its reaction to the increase in pressure of the PT bookmark 3 jolts and strokes P are given on a specific example; I. . The installation and preparation of the lintel for its use begins with the stacking of hollow blocks (shells) 1-4, then through the distributor 10 and the tubes 8 fill the shells 1-3, and from the shell 1 air 14 from its upper points is released into the atmosphere, and from shells 2 and 3, through system 9 and 12, is transferred to sheath 4, creating an overpressure in it, since shells 2, 3 and 4 are filled with air from an atmosphere with an overpressure in the order of 0.1-0.3 kg / cm. In shells 2 and 3, in their upper part, an air volume of 14 between 0.5 and 1.0 m is left so that water 15 does not enter system 9 and shell 4. After this, the jumper is ready. to work. Irie filling the chamber hardening. with the mixture, the bookmark level rises and begins to fill the output. 5B; the gross weight of the mixture is 2-2.3 t / m, it creates a pressure PT; 3 to the projecting skewed part 6 of shells 1, the higher the column of the tab above the protrusion 6, the greater the pressure P, which is directly dependent on the height of the mixture level and its specific weight. Typically, the filling of the bookmark is stopped at a height of 2-5 m above generation before its setting. With the height of the mixture level W m and its specific gravity of 2000 kg / m te kg / cm, therefore the pressure in the lower shell increases to 2.1-2.5 kg / cm, which creates an additional seal of the shells in the stack between themselves and the walls. The higher the column of liquid bookmark and its pressure on the jumper, the more the shells seal together and the stability of the jumper increases. In the event of a blow to the mushroom part 5 of the shell 4 or to other shells 2, the maximum impact force due to the damping perception of the mushroom part 5 will be significantly reduced. During dynamic load on the formwork from the shell 4, part of the air through the air system 9 and 12 passes into the shell 2 and 3, the pressure in them and the nov tubes 13 (water system) rises through the safety valves and the water from these shells is discharged. The compensation of the discharged water begins immediately after the pressure in the shells 2 and 3 is lower than the normal - set pressure. This automatically completes the following system. Due to the impulse from the sensors installed on the pressure gauge, the command is sent from the control unit to the junction box 9 of the main hydro-communication to the shells pond water. After the chamber is filled and the mixture is solidified, water and air are released from the shells, their communications are disconnected, and they are removed for reuse. This jumper reduces the cost of installing the shells into a pile and preparing them in working condition, provides shock damping from bunches-hardening bookmarks without interrupting the performance of the lintel. The jumper can be used in a wide range of cross-sections of workings with an area of 4-8 m with the same type of ycTaHOBkH shell method in various situations. Claim 1. Insertion bridge, which includes stacked throughout the cross-section of the working and filled with a working agent, which is used as air, hollow blocks made of elastic material, the base block between each other and the system of supplying them with a working agent, vyloplennuyu In the form of tubes with inverse coherence, in order to increase the stability of the jumper from the dynamic impact on it of the cast filling mass, as a working the agent is additionally used water, and the jumper has peripheral upper, side, and lower blocks filled with air and water, and at least one central block filled with air, the cross section of which is similar to the shape of the cross section of the mine, with the central block 1st block collapsing with the protruding part, and the periphery lower blocks — with prominent sloping parts, set in the ciopot of the backfill array with respect to the remaining peripheral blocks, and the message of the blocks between them block wages the agent is equipped with a dividing box in a distributor connected to the tubes installed on the supporting tripod, with the central unit communicating with the upper parts of the upper and lateral peripheral blocks by means of the tubes, the dividing box and the distributor. 2. The jumper according to claim 1, which is the protruding part. The central unit comprises a mushroom shape, the volume of which is 0.1-0.35% of the rest of the unit. Sources of information taken into account during expert review 1. USSR Author's Certificate No. 459604. Cl. E 21 F 11/00, 1971. 2. USSR author's certificate number 613125, cl. E 21 F 1/14, 1976. phage. 7 / 3 P 15 fpue.Z