SU693017A1 - Method of mining mineral deposits - Google Patents

Description

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METHOD OF DEVELOPMENT OF MINERAL DEPOSITS

The invention relates to mining and can be used in the development of mineral deposits by a chamber system with the laying of a goaf.

Known. Method of development of ore bodies, including excavation of mineral fossil chambers, bookmark them tvertotoptsey mixture and the subsequent excavation between the chamber pillars with the tab of their developed space 1.

The disadvantage of this method is the dilution of the ore bookmark.

There is a method of mining mineral deposits, which includes sinking preparatory workings in the contours of the chambers, excavating the mineral chambers, setting the mined-out space with a hardening mixture, draining water from the filling mass and subsequent excavation of the last 2 pillars.

The disadvantages of this method are the higher costs of carrying out preparatory workings in the inter-chamber pillars, the low security of the excavation and the relatively large dilution of the ore with a filling material.

The purpose of the invention is to eliminate these drawbacks.

The goal is achieved by the fact that the preparatory workings in between

0 chamber pillars pass along the contact with the chamber space developed: by ejecting the blasted mass from the excavation of the mine workings into the generated pro-. the space of the chambers, and then the above measurements are sewn away from the cleaning space of the chambers, I will equip the joining with filtering elements, after which the chambers are laid ..

FIG. 1 shows a diagram of working off between the chamber pillar, cross section; in fig. 2 is a diagram of the development of the inner-chamber pillar, section A-A of FIG. I. Primary chambers 1 are worked out with a standard stabber, natfimer, with self-propelled equipment tugging, between-chamber chain-chain 2 seals are carried out by filling the chambers with a hardening tab. For this, the preparatory workings 3, 4 in the inter-chamber pillars 2 pass through the contact of these pillars with the chambers 1 by blasting wells drilled for the entire length of the workout with the ejection of the blasted mass into the cleaning space of the camera 1. The resulting production sews away the cleaning space of the chambers 1 with filtering, insulating ceiling 5, which consists of supporting elements, metal mesh and filter fabric. For example, for removing the rising rebel 3, wooden or metal beams are used as load-bearing elements, for which O, 3-O, 5 m are larger than the width of the rebel, or ropes taut on anchors installed along the entire length of the recessing rising 3 a distance of 0.3–0.5 m from the line of its interfacing with chamber 1. For fixing the drill bit, wooden racks are used as carriers for the filtering insulating overlap, which are mounted on the contact of bolt 4 with the chamber. The distance between the supporting elements (crossbeams, racks, ropes) is chosen taking into account the specific conditions and is assumed to be 0.5-O, 7 m. The metal mesh is supported on the supporting elements, on which the filter fabric is fixed, for example, meshchkovins. The width of the metal mesh is 0 , 5-1.0 m is greater than the width of the isolated workings, and the width of the filter cloth tape exceeds the width of the metal grid Ha0.5. -LjO m. After isolating preparatory workings 3 and 4, the developed space of chambers 1 is filled with a hardening tab. At the same time, the water draining from the backfill array continuously discharges from its surface through the filtering insulating overlap of 5 production workings 3, 4 over the entire area of the coaxial contact of these workings with the cleaning space of chamber 1. After the backfill array of primary chambers has gathered a standard the strength of the resulting preparatory workings of -3 e 4 is used in the development of kaer 2 with an ordinary habitat. Filter zoliruyuschy overlap 5 dismantle. If the intercameral chambers are not sufficiently stable and their weakening by horizontal workings is undesirable, they are limited by penetration of the cutting rebellion 3, which practically does not reduce the carrying capacity of the interchamber tube 2, allowing quality drainage of water from the filling mass of chamber 1. the efficiency of excavation of the mineral by reducing the cost of carrying out preparatory workings in the inter-chamber pillars, increase safety Spine of excavation of mineral deposits and reduce ore dilution of backfill material, as high-quality drainage of water from the backfill massif increases the strength of the claim, solid pods Formula of the invention hardening mixture, drainage of water from the backfill array and the subsequent excavation between the chamber pillars with the laying of of the latter, about the fact that, with the chain of increasing the efficiency of mining, by reducing the cost of preparatory workings in the inter-chamber pillars, increasing the safety of the excavation and reducing the ore dilution of the backfill material, preparatory works in between the chamber pillars t on contact with the developed chamber space by ejection of the blasted mass from the penetration of the workings into the chamber open space, and then these outlets are thawed from stnogo space chambers is equipped otshivku filter elements. after which the camera is laid. Sources of information taken into account in the examination 1, Smoldyrev A. E. Technologists and mechanization of backfilling, M., Nedra, 1974, p. 98-1O4. 2. Kravchenko, V.P., et al. Application of hardening bookmarks in the development of ore deposits. M., Nedra, 1974, p. 175-176 (prototype).

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