Erection method of filling connection strap

FIELD: mining.

SUBSTANCE: invention refers to mining engineering and can be used during underground development of mineral deposits. Erection method of filling connection strap involves making of rock dike by laying as to width and height of the filling working of large rock pieces 1, on which there put is layer of finer rock or sand 2 with drain pipe 3 passed through rock dike. On rock dike there installed are pneumocylinders 4, which are forced outwards, between rock dike and roof of working by supplying to pneumocylinders 4 of compressed air with outward pressure which is more than limit value, at decrease of which pneumocylinders 4 are forced with backfill material 5 to the side of non-filled part of the working. Distance between rock dike and roof of working is determined by the ratio: amin<h<0.75amax, where: amin - minimum height of pneumocylinder 4 when in folded position till compressed air is supplied to it; h - distance between rock dike and roof of working; amax - size of pneumocylinder 4 after compressed air has been supplied to it.

EFFECT: increasing efficiency of filling operations.

1 cl, 1 dwg

 

The invention relates to the mining industry and can be used in underground mining.

There is a method of construction of bridges, including the installation of a wooden shield, support, and uasin for shooting (see Reference backfilling works. Edited Dambrosia and Minchenkov. - M.: Nedra, 1989, s).

However, the disadvantage of this method is unreliable design with significant loads on the bridge.

There is a method of construction of bridges, including installation in the mine workings of the casing and filling mesopleuron space with concrete mix, and miopliocene space within the height of the rectangular code generation filled with the concrete mixture with the addition of non-explosive destructive means (NRS-1) in the following ratio, wt.%: sand and gravel 72; cement 18; LDC-12; water 8, and at the interface of the concrete to be laid waterproofing material, and concrete mixture with the addition of LDC-1 fill the selection part of the production (see patent 2069766, CL 21F 15/00).

However, this method requires considerable effort and a large flow of concrete mix to the same jumper works after complete solidification of the concrete mixture.

There is a method of construction of bridges, including the creation of the rock shaft by calculations for Chi is the Yin and the height of the backfill production of large rocks, which is poured a layer of smaller rocks or sand, skipping the drainage pipe through the rock shaft (see Shaft jumpers. Gosgortechnadzor, 1962, s).

However, the disadvantage of this method is unreliable design with significant loads on the bridge.

The technical result achieved when using the proposed method, is to increase the efficiency of filling operations.

The technical result is achieved in that in the method of construction backfill jumpers, including the creation of the rock shaft by relating to the width and height of backfill generation of large rocks, which is poured a layer of smaller rocks or sand, skipping the drainage pipe through the rock shaft, according to the invention on a rock shaft install the air bellows, which hold apart between the rock shaft and roof framing by filing in the air bellows compressed air thrust more limit values, while reducing which is squeezing the air bellows backfill material in the direction nesgladimoe developing, the distance between the rock shaft and the roof framing is determined from the ratio

amin<h<0,75Amax,

where amin- minimum height pneumobilia folded before filing it with compressed air;

h - distance is between the rock wall and roof framing;

andmax- size pneumobilia after submission to it of compressed air.

The invention is illustrated in the drawing, which shows a schematic construction of filling the bridge.

The method is as follows. After extraction of the mineral from the entire width of the backfill production lay out large pieces of rock 1 (see drawing), and by filling mass is put a layer of smaller rocks or sand 2. Through the layer of rock is skipped drainage pipe 3. On large pieces of rock are air bellows 4, which serves compressed air and pumps between the rock shaft and roof framing by filing in the air bellows compressed air thrust more limit values, while reducing which is squeezing the air bellows backfill material in the direction nesgladimoe developing, the distance between the rock shaft and the roof framing is determined from the ratio

amin<h<0,75Amax,

where amin- minimum height pneumobilia folded before filing it with compressed air;

h is the distance between the rock wall and roof framing;

andmax- size pneumobilia after submission to it of compressed air.

Then for the rock shaft, which is set to air bellows, served on a pipe (not shown) filling the Mat is Rial 5 the entire height H of generation, and after hardening filling material, the air bellows unloaded, removed from the rock shaft and transferred to a new location setup tab jumper.

After surgery for placement of large rocks across the width of the output, and then the fine crushed rock or sand from filling material, pass drainage pipes, installation of air bellows on rock support, compressed air in the air bellows, expansion of the air bellows between the rocks and roof framing by filing in the air bellows compressed air thrust more limit values, while reducing which is squeezing the air bellows backfill material in the direction nesgladimoe developing repeat.

This method of construction backfill jumpers will improve the efficiency of filling operations.

The method of construction backfill jumpers, including the creation of the rock shaft by relating to the width and height of backfill generation of large rocks, which is poured a layer of smaller rocks or sand, skipping the drainage pipe through the rock shaft, characterized in that on a rock shaft install the air bellows, which hold apart between the rock shaft and roof framing by filing in the air bellows compressed air thrust, more limit values, reduce the attachment which is the squeezing of the air bellows backfill material in the direction nesgladimoe developing, the distance between the rock shaft and the roof framing is determined from the ratio
amin<h<0,75amax,
where amin- minimum height pneumobilia folded before filing it with compressed air;
h is the distance between the rock wall and roof framing;
amax- size pneumobilia after submission to it of compressed air.



 

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