SU898072A1 - Method of preventing accidental burst-through of floating earth into mine workings - Google Patents

Description

one

The invention relates to the mining industry and can be used in the development of mineral resources that require them to drain overhead rocks.

There is a method of water lowering in the area of mining operations by conducting drainage mine workings for minerals 1.

There is also known a method of draining watered sediments by artificially lowering the level of groundwater with the help of drainage mine workings with through filters and recovered boreholes 2.

The disadvantage of this method in draining difficult-to-discharge water sediments containing sandy and clay particles is its low efficiency, since the operation of filters decreases as a result of their calming and the drained arrays continue to retain their flow properties.

The purpose of the invention is to increase the efficiency of drainage during the drainage of the flooded: -C deposits deposited above minerals.

The goal is achieved by isolating the drainage excavation in the ore body from the workings of the haul horizon with hermetic bridges and floats from the overhead, their sediments are bypassed into it in the ceiling zone, and after sedimentation of solid particles, the clarified water from the drainage excavation is removed to the otkladny horizon on wells.

FIG. 1 shows a drainage chamber with workings and wells, a vertical section; In FIG. 2 shows section A-A in FIG. one.

In the ore body 1, drainage generation 2 is worked out, it is isolated from the openings of the haul horizon 3 with chemical bridges 4. In the drainage excavation 2 of the mines of the haul horizon 3, borehole 5 is drilled to remove drainage grooves of the haul horizon 3 from it.

Above the roof of the drainage excavation 2, in the ore massif 1, inclined excavations 6 are made, of which the wells not reinforced with filters 8 are drilled into the flooded loose sediments 7. Production 6 are connected to the drainage production 2 by means of rising 9 and connecting 10.

Rising 9 serves to drive the workings 6 and to transfer water and flowing rocks to the drainage work 2.

The quicksands and the water through the wells 8 enter the openings 6, then the rising 9, fill the openings of the haulage level 3 to the hermetic bridges 4 and rising 9 to match the slug 10, and then enter the drainage openings 2. In the latter, solid particles are deposited, and the water is clarified and removed through wells 5 into the drainage grooves of the retraction horizon 3.

Monitoring of the operation of wells 8 and the movement of water and flown is carried out through the rising 11, passed from the workings of the haulage horizon 3 and also serves for excavating the workings 6. The ascending 11 is isolated by a sealed jumper 12 in which it is equipped for people.

The application of the invention allows to increase the efficiency of drainage of the water-deposited deposits during the development of mineral resources.

Claims (2)

1. Reference engineer engineer. T. 2, M., "Nedra, 1972, p. 399 2. Abramov S., K., Skirchelo, O. B. The Impression of Quarry and Career Fields. M., "Nedra., 1968, p. 72-76, fig. 33. R : / .- .- - -: ... .., ..-. .V,. - / - tt .- /. -, -t-- -: T -: .-: -T .-- a -: lL 1. -...-- 1- ---- U