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Ore mining structure and method under extremely broken ore body condition

An ore mining and extremely crushing technology, which is applied in ground mining, mining equipment, underground mining, etc., can solve the problems of poor applicability of extremely crushed ore bodies, low recovery efficiency of crushed ore bodies, and cumbersome construction, so as to improve ore mining. rate, strengthen the support strength, and ensure the effect of support strength

Pending Publication Date: 2022-06-07
CHINA MINMETALS CHANGSHA MINING RES INST
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this technology can recover broken ore body resources, it is only suitable for broken ore bodies in the state of medium-thickness and steep inclination, and is not very applicable to extremely broken ore bodies, and this method is cumbersome and expensive. , the recovery efficiency of the broken ore body is low

Method used

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  • Ore mining structure and method under extremely broken ore body condition
  • Ore mining structure and method under extremely broken ore body condition
  • Ore mining structure and method under extremely broken ore body condition

Examples

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Embodiment

[0036] like figure 1 As shown, an ore mining structure 100 under extremely broken ore body conditions is used in a mining area that intersects with the extremely broken ore body 60 in trend. The extremely broken ore body 60 is a ore belt with a length of 200m, an average width of 15m and a height of 40m in the extremely broken area of ​​a mine. The mine belt is in a vertical state with the mine stope of which the existing stope planning is not yet known. The mine stope is 50m in length, 15m in width and 20m in height. On this basis, the tunnel section of the underground mechanical equipment construction is set to 4m*4m.

[0037] The ore mining structure under the condition of extremely broken ore body includes a false jacking road 10 located above the extremely broken ore body 60 and arranged in the horizontal direction, and an upper ore body and a lower ore body respectively arranged on the upper and lower sides of the false jacking road 10 . The construction of the false t...

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Abstract

The invention discloses an ore mining structure and method under the condition of an extremely broken ore body, which are used for a mining area crossed with the trend of the extremely broken ore body, and comprise a false roof drift which is positioned above the extremely broken ore body and is arranged along the horizontal direction, and an upper ore body and a lower ore body which are respectively arranged on the upper side and the lower side of the false roof drift, an artificial false roadway is arranged in the area, located over the extremely broken ore body, of the false roof drift, an artificial false roof is arranged in the artificial false roadway, and the artificial false roof comprises a supporting structure arranged at the top end and the inner circumferential wall of the artificial false roadway, a reinforcing mesh arranged at the bottom end of the artificial false roadway and a filling body filled in the artificial false roadway. By means of the mode, the artificial roof is arranged above the extremely-broken ore body, the two supporting systems of the supporting structure and the reinforcing mesh are arranged at the artificial roof, the good supporting effect on ore rocks on the upper layer of the artificial roof can be achieved, and smooth mining of the extremely-broken ore body below the artificial roof is guaranteed.

Description

technical field [0001] The invention relates to the technical field of ore mining under the condition of extremely broken ore body, in particular to an ore mining structure and method thereof under the condition of extremely broken ore body. Background technique [0002] In underground mine engineering, the recovery of ore resources under the condition of extremely broken ore bodies has always been an industry problem in the mining field. Under the condition of this extremely broken ore body, the ore resources will collapse naturally once exposed, and the collapsed ore is in the form of broken particles. In addition, it is difficult to drill holes and charge in this extremely broken ore area, and it is impossible to recover this part of ore resources by conventional blasting methods, which can easily lead to waste of resources, which is not conducive to the long-term production planning and sustainable development of the mining industry. cause huge economic losses. [0003...

Claims

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Application Information

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IPC IPC(8): E21C41/22E21D9/14E21F15/00E21D11/00E21D11/18E21D11/15
CPCE21C41/22E21D9/14E21F15/00E21D11/00E21D11/18E21D11/152
Inventor 王亚军李晓辉李向东李伟明盛佳李强朱青凌张海云喻威张宝刘东锐李士超王玉丁张为星
Owner CHINA MINMETALS CHANGSHA MINING RES INST
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