SU901525A1

SU901525A1 - Method for combined working of steeply sloping mineral deposits

Info

Publication number: SU901525A1
Application number: SU802918336A
Authority: SU
Inventors: Николай Иванович Охрименко; Иван Радионович Поляков; Александр Николаевич Охрименко
Original assignee: Среднеазиатский Научно-Исследовательский И Проектный Институт Цветной Металлургии
Priority date: 1980-04-25
Filing date: 1980-04-25
Publication date: 1982-01-30

Description

Изобретение относится к горной промышленности и может быть использовано при разработке крутопадающих залежей полезных ископаемых.The invention relates to the mining industry and can be used in the development of steeply dipping mineral deposits.

Известен способ комбинированной , разработки крутопадающих залежей 5 полезных ископаемых, включающий совместное в вертикальной плоскости ведение открытых и подземных горных работ [1].There is a method of combined development of steeply dipping deposits of 5 minerals, including joint vertical and open mining underground mining [1].

Известен также способ комбинированной разработки крутопадающих залежей полезных ископаемых, включающий ведение открытых горных работ в карьере совместно с ведением подземных горных работ, образующих зо- ¹⁵ну обрушения в пределах карьера [21.It is also known a combination of steep development of mineral deposits, including the conduct of open pit mining in the quarry, together with the conduct of underground mining, forming zo- ¹⁵ well collapse within Career [21.

Однако оба указанных способа характеризуются недостаточной эффектив- _ ностью.However, both of these methods are characterized by insufficient efficiency.

Цель изобретения - повышение эффективности комбинированной разработки .The purpose of the invention is to increase the efficiency of combined development.

Поставленная цель достигается тем, что фронт горных работ в карьере развивают вокруг зоны обрушения от подземных работ с оставлением временных целиков вокруг последней, при этом выпуск горной массы из зоны обрушения производят из подземных выработок со скоростью понижения уровня зоны обрушения равной скорости понижения горных работ в карьере.This goal is achieved by the fact that the front of mining operations in the quarry is developed around the collapse zone from underground operations, leaving temporary pillars around the latter, while the release of the rock mass from the collapse zone is made from underground workings with a rate of decrease in the level of the collapse zone equal to the speed of lowering mining operations in the quarry .

Временные целики погашают путем их разбуривания горизонтальными скважинами .из карьера и взрывания зарядов взрывчатого вещества в указанных скважинах.Temporary pillars are repaid by drilling them with horizontal wells. From a quarry and detonating explosive charges in these wells.

Способ заключается в следующем.The method is as follows.

При разработке крутопадающих рудных залежей одновременно ведут открытые горные работы в карьере и подземные горные работы. В результате подземных горных работ в пределах карьера образуется зона обрушения. Фронт открытых горных работ развивают вокруг указанной зоны обрушения ?0 с оставлением временных целиков вокруг этой зоны. Горную массу из зоны обрушения выпускают на подземном горизонте в выработки, при этом выпуск производят таким образом, чтобы скорость понижения уровня зоны обрушения была равна скорости понижения горных работ в карьере. По мере понижения горных работ временные целики у зоны обрушения погашают путем разбуривания их горизонтальными скважинами из карьера и взрывания в указанных скважинах зарядов взрывчатого вещества.When developing steeply falling ore deposits, open pit mining and underground mining are simultaneously conducted. As a result of underground mining, a collapse zone forms within the quarry. The front of open-pit mining is developing around the indicated zone of collapse? 0, leaving temporary pillars around this zone. The rock mass from the collapse zone is released on the underground horizon into the mine workings, while the release is made so that the rate of decrease in the level of the collapse zone is equal to the rate of decrease in mining operations in the quarry. As mining operations decrease, temporary pillars near the collapse zone are extinguished by drilling them with horizontal wells from the quarry and blasting explosive charges in these wells.

Предлагаемый способ позволит повысить эффективность комбинированной разработки.The proposed method will improve the efficiency of combined development.

Claims

The invention relates to the mining industry and can be used in the development of steeply dipping deposits of minerals. There is a method of combining the development of steeply dipping deposits of minerals, which includes the vertical and vertical exploration of open-pit and underground mining L11. There is also known a method for the combined development of steeply dipping deposits of minerals, which includes open pit mining in a quarry, together with underground mining, forming a zone of collapse within the open pit 121 However, both of these methods are characterized by insufficient efficiency. The purpose of the invention is to increase the efficiency of the combined development. The goal is achieved by the fact that the mining front in the quarry is developed around the zone of collapse from underground works, leaving temporary aggregates around the latter, while the output of the rock mass from the zone of collapse is produced from underground mines with a rate of decrease of the zone of collapse career Temporary pillars are repaid by drilling them into horizontal wells from the pit and explosive charges of explosives in the said wells. The method is as follows. In the development of steep deposits, ore deposits simultaneously conduct open pit mining and underground mining. As a result of underground mining within the pit, a collapse zone is formed. The front of open pit mining is developed around the specified zone of collapse, leaving temporary pillars around this zone. The rock mass from the zone of collapse is released on the underground horizon into the mine workings, while the output of PR1X is produced in such a way that the rate of decrease of the level of the zone of collapse is not equal to the rate of decrease of mining in the quarry. As the mining operations decrease, the temporary pillars near the collapse zone are repaid by drilling them with horizontal HaKfi wells from the quarry and blasting explosive charges in these wells. The proposed method will improve the efficiency of the combined development. Claim 1. Method for the combined development of steeply dipping deposits of minerals, including open pit mining at the quarry, together with exploration of underground mining, forming a 3orty cave-in within 9 5 ra, in order to improve the efficiency of the combined development, the mining front in the quarry is developed around the zone of collapse from underground works, leaving temporary pillars around the latter, while the production of rock mass from the zone of collapse is produced from underground workings with a rate of decrease in the level of zrn of a collapse equal to the rate of decrease of mining in a quarry 2. The method according to claim 1, wherein the temporary pillars are repaid by drilling them out of the open pit with horizontal wells and blasting explosive charges in said wells. Sources of ifnotations, taken into account during the examination 1, Yumatov V.P. and others. Construction and reconstruction of ore quarries. M., Nedra, 1978, pp.52-53.

2.Chelkanov V.A. Combined development of ore deposits. M., Nedra, 197, C; 8-18.