RU96111528A

RU96111528A - METHOD FOR DEVELOPING MINERAL FOSSIL STREDS

Info

Publication number: RU96111528A
Application number: RU96111528/03A
Authority: RU
Inventors: В.П. Зубов; А.Б. Соколов; А.Е. Кононова; В.В. Карин
Original assignee: Акционерное общество шахта "Воргашорская"
Filing date: 1996-06-05
Publication date: 1998-01-27

Claims

1. A method of developing mineral strata, including conducting split furnaces, main, flank and local preparatory workings, contouring the pillars of minerals, and subsequent pairwise mining of pillars within the excavation sections with lavas equipped with high-performance mechanized complexes, characterized in that the mineral pillars are worked out in mutually opposite directions, at the same time, at the beginning of mining of the first column, the local haulage excavations of the first of the second and second pillars, between which the auxiliary excavation takes place, the first column is worked out in the direct course from the main preparatory excavations to the boundaries of the excavation section with the redemption of the local recoil excavation of the first column behind the lava in the area between the split furnace of the first lava and the auxiliary development, the split furnace of lava working off the second a pillar, run in line with the dismantling chamber of the first lava before the dismantling of equipment in the first lava, the second pillar is worked out backward from the boundaries of the excavation The leg portion to the main preparatory workings, wherein prior to its working out between the main and auxiliary preparatory workings tested precinct ventilation generate second column.

2. The method according to p. 1, characterized in that the distance between the cutting furnace of the first lava and auxiliary production is determined from the expression
S ≥ L - a,
where S is the distance between the cutting furnace of the first lava and auxiliary production;
L is the length of the column of minerals;
and - the maximum permissible length of the local preparatory mine, maintained at the border with the mined-out space, beyond which a stable state of this mine is not provided by the time the second pillar begins to be mined.

3. The method according to PP. 1 and 2, characterized in that when conducting precinct ventilation excavation of the second pillar with the left pillar of the mineral between the mined space and this excavation, a pillar of the mineral is excavated by the lava of the second pillar.

4. The method according to PP. 1, 2 and 3, characterized in that the mineral mined during the operation of the lava of the first column in the area between the auxiliary production and the dismantling furnace is transported through a split furnace of the second lava.