When the geological work of the mining area is carried out to the exploration stage, the well field for mining the mining area can be divided. According to the conditions can be. The mining area is divided into one or several well fields. These wells can be constructed at the same time, and can also be developed according to the quality of the construction conditions and the amount of investment.
The principle of well field division is to conduct comprehensive technical and economic comparisons in accordance with natural conditions and mining technical conditions to seek a reasonable minefield realm.
( 1 ) Divide the mine field according to the degree of exploration. The mining area is very long or the ore body is not continuous but the mining area is very large. It can be explored in sections, and exploration can also be carried out at the same time. The exploration of the sub-area may be based on the scope of the submitted report, combined with the mining technical conditions to divide the well field, and at the same time submit the report, the comprehensive technical and economic analysis may be used to divide the mine field.
( 2 ) Dividing the mine field according to the geological characteristics of the deposit. When the mining area has a long trend and the reserves are large, the wells can be divided according to the faults, anticlines, synclines, and non-mineral belts of the deposit; sometimes, according to the deposit elevation and thickness of the deposit, part of it is classified as open-pit mining, and another part It is classified as underground mining; in the case of complex hydrogeological conditions of the deposit, the well can be divided according to the position of the water layer.
( 3 ) Divide the mine field according to the terrain and features. In the case of valleys, mountains, rivers, railroads, towns, heritage and scenic areas, in order to protect or avoid adverse mining conditions, and so it can be divided Ida.
( 4 ) Divide the mine field according to the processing requirements of ore technology. Such as lean ore section, rich ore section, hematite section, magnetite section; oxidized ore section, sulfide ore section, etc., these sections have different technical processing. If the long-term reserves are large, they can form separate well fields. Gongchangling as iron ore, copper ore Muding.
In addition to the treatment of the division of the minefield, some deposits are divided into sections according to the depth of burial. The exploration is also carried out successively. The reserves of the mine section and the length of the strike are very different. At this time, the minefield can be divided according to different mining depths. The Shizishan Copper Mine Area This is an example. Some mining areas may divide their wells and their deep reserves and strike lengths may become larger and may shrink. When the second stage construction is carried out, the well fields must be re-divided according to the deep conditions.
When dividing the well field, the relationship between adjacent well fields must be handled: including underground and open pit mines; production mines and new mines; shallow mines and deep mines. For the mines to be expanded and expanded, special attention should be paid to giving full play to the production capacity of the existing minefields. Classification of the ongoing Ida metal and nonmetal mines, the main scheme method. Analytical methods are rarely used due to the limitations of topography and deposit conditions.
The division of mine fields in metal and non-metal mines can be summarized into the following categories:
( 1 ) The mining area has a long trend, the reserves are large, and the ore body is continuous, and the mining area can be divided into several well fields. The open male phosphate mining, mining Hu set Gongchangling iron ore.
( 2 ) The mining area has a long trend and the ore body is not continuous, but each section has a large reserve and a long trend, which can be divided into several well fields according to natural conditions. Such as Jinchuan Nickel Mine Area 712 mining area.
( 3 ) The mining area is relatively large, consisting of several or dozens of independent ore bodies or ore sections, and is divided into several pits for independent mining, but its mining system is uniform. These scattered pits are thus concentrated to form a mine field. For example, the Dongchuan Mining Bureau’s Yinmin Mine Field consists of the pits of the Mountain, the Monkey Jumping Cliff, the Zhangkou Cave, the Yingge Frame and the Big Arm Slot. The Falling Snow Mine consists of Longshan, Laoshan, Rare Mine, Xiaoshaokou and Moon Cave. The composition of the pits.
( 4 ) The mining area consists of one or several ore bodies (mine sections) and is divided into one well field. Such as Jinping Phosphate Mine, Fenghuangshan Copper Mine.
In addition, the Kiruna Iron Mine in Sweden has a length of 4000m , an average thickness of 85m , a maximum exploration depth of 2000m and a production scale of 20-30 million tons/ year. It is one of the largest underground mining mines in the world. However, it is not divided into several wells for mining, and the use of silo clusters to develop and concentrate the plant construction plan. This experience is worth studying.
The principle of well field division is to conduct comprehensive technical and economic comparisons in accordance with natural conditions and mining technical conditions to seek a reasonable minefield realm.
( 1 ) Divide the mine field according to the degree of exploration. The mining area is very long or the ore body is not continuous but the mining area is very large. It can be explored in sections, and exploration can also be carried out at the same time. The exploration of the sub-area may be based on the scope of the submitted report, combined with the mining technical conditions to divide the well field, and at the same time submit the report, the comprehensive technical and economic analysis may be used to divide the mine field.
( 2 ) Dividing the mine field according to the geological characteristics of the deposit. When the mining area has a long trend and the reserves are large, the wells can be divided according to the faults, anticlines, synclines, and non-mineral belts of the deposit; sometimes, according to the deposit elevation and thickness of the deposit, part of it is classified as open-pit mining, and another part It is classified as underground mining; in the case of complex hydrogeological conditions of the deposit, the well can be divided according to the position of the water layer.
( 3 ) Divide the mine field according to the terrain and features. In the case of valleys, mountains, rivers, railroads, towns, heritage and scenic areas, in order to protect or avoid adverse mining conditions, and so it can be divided Ida.
( 4 ) Divide the mine field according to the processing requirements of ore technology. Such as lean ore section, rich ore section, hematite section, magnetite section; oxidized ore section, sulfide ore section, etc., these sections have different technical processing. If the long-term reserves are large, they can form separate well fields. Gongchangling as iron ore, copper ore Muding.
In addition to the treatment of the division of the minefield, some deposits are divided into sections according to the depth of burial. The exploration is also carried out successively. The reserves of the mine section and the length of the strike are very different. At this time, the minefield can be divided according to different mining depths. The Shizishan Copper Mine Area This is an example. Some mining areas may divide their wells and their deep reserves and strike lengths may become larger and may shrink. When the second stage construction is carried out, the well fields must be re-divided according to the deep conditions.
When dividing the well field, the relationship between adjacent well fields must be handled: including underground and open pit mines; production mines and new mines; shallow mines and deep mines. For the mines to be expanded and expanded, special attention should be paid to giving full play to the production capacity of the existing minefields. Classification of the ongoing Ida metal and nonmetal mines, the main scheme method. Analytical methods are rarely used due to the limitations of topography and deposit conditions.
The division of mine fields in metal and non-metal mines can be summarized into the following categories:
( 1 ) The mining area has a long trend, the reserves are large, and the ore body is continuous, and the mining area can be divided into several well fields. The open male phosphate mining, mining Hu set Gongchangling iron ore.
( 2 ) The mining area has a long trend and the ore body is not continuous, but each section has a large reserve and a long trend, which can be divided into several well fields according to natural conditions. Such as Jinchuan Nickel Mine Area 712 mining area.
( 3 ) The mining area is relatively large, consisting of several or dozens of independent ore bodies or ore sections, and is divided into several pits for independent mining, but its mining system is uniform. These scattered pits are thus concentrated to form a mine field. For example, the Dongchuan Mining Bureau’s Yinmin Mine Field consists of the pits of the Mountain, the Monkey Jumping Cliff, the Zhangkou Cave, the Yingge Frame and the Big Arm Slot. The Falling Snow Mine consists of Longshan, Laoshan, Rare Mine, Xiaoshaokou and Moon Cave. The composition of the pits.
( 4 ) The mining area consists of one or several ore bodies (mine sections) and is divided into one well field. Such as Jinping Phosphate Mine, Fenghuangshan Copper Mine.
In addition, the Kiruna Iron Mine in Sweden has a length of 4000m , an average thickness of 85m , a maximum exploration depth of 2000m and a production scale of 20-30 million tons/ year. It is one of the largest underground mining mines in the world. However, it is not divided into several wells for mining, and the use of silo clusters to develop and concentrate the plant construction plan. This experience is worth studying.
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