SU1686170A1 - Method of open mining of sheet deposits - Google Patents

Abstract

The invention relates to mining promet and m. used in the open development of stratum deposits of horizontal and flat bedding of rocks prone to opopmous CHELCH IRM The purpose of the invention is to reduce the loss of ni g & fossil (PI) for r jeryr.pj F displacement of dump rubber and Mpc; : face on a weak base Pass-in overburden 1 in otm 2 ocyu. ls the basement of the slope mining area 3. this separates the mining approach KV 4 l oi from - overburden rocks entirely 5 PI. Then place the indicated rear sight prod to jo-. LF possible collapse OTKJCA otz / ia. The displacement is caused by the impact of the hinge of the entire pillar 5 of the octopacial F, in case of violation of the stability of the vibrant by means of the PI in the advanced mining duct 1. The recoverable PI is placed on the MS roof of 5, the development of the entire pillar 5 of the PI is carried out silt

Description

The invention relates to the mining industry and can be used in open pit mining of horizontal and shallow bedded deposits in rocks prone to landslide 5 phenomena.

The purpose of the invention is the reduction of mineral losses during sleep controlled movement of dump rocks and the massif of the circlip on a weak basis. 10

The drawing shows a diagram of the implementation of the method of open development of reservoir deposits in weak rocks.

The method is as follows.

Transshipment of overburden rocks 1 e dump 15 2 is carried out, for example, with an E'Sh-20/90 excavator, with the basement of the slope of the production ledge 3, separation of the mining entry 4 from the overburden dump of the whole mineral 5 and its subsequent relocation 6 for limits of the zone of possible collapse of the dump slope.

Separation of the mining sunset from the overburden dump is carried out by excavating a mineral, for example, 25 with an excavator with top loading in vehicles, for example, wagons. In the process of performing the above operations as a whole mineral, the deformation zone of the soil of the formation 7 is loaded with after-. 30 by blowing the pillar by the action of 3 creeping rocks 8 on its slope, if the blade is not stable by excavating the mineral in an advanced mining setting 4. 35

The development of the mineral pillar is carried out after the stabilization of the landslide.

In the process of excavation of a mineral in a worked-out space after 40 after the movement of the face, create a drainage system, for example, a ditch, which allows you to drain the entire mineral and the rock of the dump, thereby increasing its stability, 45

Additionally, in order to increase the acceptability of the blade, the extraction of minerals is carried out in an advanced mining approach outside the zone of possible collapse of the slope of the dump and deformation of the soil of the formation 9 with its laying on the roof 10 of the adjacent mineral pillar 5.

Subsequently, mining operations are repeated.

The proposed method of open development of reservoir deposits in weak rocks has the following advantages: excludes loss of minerals in the whole under the dump and when it explodes; simplified technology for the development of reservoir deposits in weak rocks; the receiving capacity of the blade increases due to the drainage of its constituent rocks and the strengthening of the emphasis and loading of underlying rocks from the pillar of a mineral due to the placement of a mineral on its roof from an advancing mining sunset; disruption of transport communications by landslide phenomena due to the extraction of minerals by servicemen * from the working side to the dump and ensuring its preliminary drainage is excluded.

Claims (2)

Claim 1. A method for open-pit mining of stratified mineral deposits, including transshipment of overburden with a basement of the production ledge and separation of the leading production approach from the overburden dump of the entire mineral, moving the pillar of the mineral outside the zone of possible collapse of the slope of the dump and excavating the mineral pillar, different I mean that, in order to reduce mineral losses due to the controlled movement of dump rocks and the pillar array on a weak base, I’ve moved e pillar perform exposure at its sag slope overburden in violation of stability blade recess of minerals in mining stope advanced beyond the possible deformation zone soil pillar, 2. The method according to claim 1, with the fact that the recoverable mineral in the advanced mining approach is laid on the roof of the pillar of the mineral.