SU1254159A1 - Method of mining thick gently-sloping ore deposits - Google Patents

Description

The invention relates to mining and can be used in the underground mining of powerful minerals. The prizes are substantial. In the development of powerful flat ore deposits with the laying of the developed space a hardening bookmark with the use of self-propelled cargo handling equipment.

The purpose of the invention is to reduce the amount of preparatory-rifled work and the staging of mining stocks.

FIG. 1 shows the stage of testing the primary chamber; on league. 2 - the stage of working the secondary chamber.

The method is carried out as follows.

The thick flat ore deposit 1 is divided into primary 2 and secondary 3 chambers. In order to work out the primary chamber 2, the reserves of the side-slopes of the secondary chamber 3 are worked out and the transport and haul road 4 is formed along the soil of the ore deposit 1 along the chambers across the chambers-races 5 into the primary camera 2. At the same time, the transport haul 4 the secondary chamber 3 passes on the opposite side from the primary chamber 2 at the place where the entire ridge is formed for the secondary chamber 3 to be processed. From the transport drift 4, races 5 are dispersed, leaving the ore ones; pillars 6, across and along the primary chamber 2. Transport and haul road 4, races 5 and 6 pillars formed by races 5 in the primary chamber 2, when being driven, are shaped in the form-slopes. The passage t vents

one

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the production of 7, make the ore mass of the primary chamber 2 explosive wells 8 and proceed to the mass breaking of chamber reserves 5 with 2.

Obscuration and massive ore blasting in the primary chamber 2 lead to the formation of ore pillars-slopes on the soil of the ore deposit 1. Ore pillars-slopes in the primary chamber 2 are formed from ore pillars 6 formed on the soil of the ore deposit when passing races 5 to the primary chamber 2. The delivery of broken ore from the primary chamber 2 is carried out through the races 5 and the transport and delivery drift 4, passed at the places of formation of the slopes in the secondary chamber 3.

After working out the primary camera

2, the developed space of the primary chamber 2 is laid together with the races 5 and the transport and transport drift 4 and this forms artificial pillars-slopes 9 in the secondary chamber 3. After solidification, the tabs in the ore slopes formed by the primary chamber

2, work off stocks of full-3Q primary camera chambers and form a transport and haul 10 and arrivals 1 1 for mining the secondary chamber

3 sizes equal to the dimensions: chambers of slopes 12. The secondary chamber 3 is being worked out and laid out

with transport delivery route 10 and races 11, corresponding to it,

When the following chambers are removed, the operations are repeated.

20

25

35

.Yes -

VNSHPI Order 4698/36

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Random polygons pr-tie, Uzhgorod, st. Project, 4

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Claims (1)

METHOD FOR DEVELOPING POWERFUL FLATING OIL DEPOSITS, including extraction of reserves by primary and secondary chambers, driving transport drifts along the chambers through the soil of the deposit, driving rails across the chambers through the soil of the transport and delivery drifts, forming pillars and slopes in the bottom of the chambers and tunneling the development of stocks of chambers of mass ore breaking, the extraction of stocks of pillars — slopes and the filling of the worked-out space with a hardening tab, which distinguishes me in that, in order to reduce the volume of preparation ovitelno-threaded work staging and development of reserves, first work out the stocks of pillar-slope form secondary chambers and thus generate podgotovitelnonareznye primary chambers which after working off the primary. the chambers are filled together with the bookmark and form artificial pillars — slopes of the secondary chambers, after which they develop the reserves of the pillars — slopes of the primary chambers and at the same time form preparatory-cut workings of the secondary chambers, which are filled with the bookmark together with these chambers.