CN105041313A - Long and narrow ore body accurate mining engineering ore-controlling method - Google Patents
Long and narrow ore body accurate mining engineering ore-controlling method Download PDFInfo
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- CN105041313A CN105041313A CN201510314702.1A CN201510314702A CN105041313A CN 105041313 A CN105041313 A CN 105041313A CN 201510314702 A CN201510314702 A CN 201510314702A CN 105041313 A CN105041313 A CN 105041313A
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Abstract
The invention provides a long and narrow ore body accurate mining engineering ore-controlling method. The long and narrow ore body accurate mining engineering ore-controlling method comprises the following steps of arranging an accurate mining tunnel in advance; designing the accurate mining tunnel according to exploration engineering; arranging an exploration access road penetrating ore body in a direction perpendicular to the trend of an ore body; determining a tendency ore rock boundary of the ore body and the thickness of the ore body; and arranging an extracting drift in the middle along the trend after the thickness of the ore body is determined. A prospection tunnel is required to be arranged in a perpendicular trend when the extracting drift along the trend of the ore body advances for a certain distance so as to ensure accuracy of the direction. The long and narrow ore body accurate mining engineering ore-controlling method has the advantages that the engineering amount of the accurate mining tunnel is greatly reduced under the condition that requirements on production exploration engineering and requirements on engineering geological conditions, equipment level and a mining technology are met. The tunneling ratio is reduced, and the integrated mining cost is also reduced. Unnecessary loss on ends of a heading side is avoided, and the mining cost, the dilution ratio and the loss ratio are reduced.
Description
Technical field
The invention belongs to mining technique field, relate to long and narrow narrow ore body and adopt accurate engineering control ore deposit method.
Background technology
Long and narrow narrow ore body is less due to its ore body scale form, lacks the exploitation method of scientific system, and industrialization exploitation difficulty is large, cost is high.Ore body is in production mine locating process, and development heading engineering will both farthest in conjunction with prospecting drift engineering, to reduce costs; Take into full account the maximization of block stoping rate again, to avoid the loss of resource.Therefore, adopting accurate Control Engineering should reach claimed accuracy, has the requirement of its technique rate of extraction again.Wear arteries and veins then can cause as extracting drift with traditional in narrow ore body: 1. Dai Yan is many, and rock mixing in rock intersection ore deposit, ore deposit causes unnecessary dilution, loss; 2. roadway engineering amount is bigger than normal, cost high (cutting lane, 2-boundary line of ore bed and rock, 3-lane, 4-ore removal gallery, 5-drop shaft along the pulse see Fig. 1,1-).
Summary of the invention
The present invention solves the problem that long and narrow narrow orebody mining difficulty is large, cost is high, proposes long and narrow narrow ore body and adopts accurate engineering control ore deposit method.
Technical scheme: long and narrow narrow ore body adopts accurate engineering control ore deposit method, pre-arranged development heading, in conjunction with the design development heading of mineral exploration engineering tunnel, vertical orebody trend arranges that a mine locating route penetrates ore body, determine rock border, orebody strike ore deposit and orebody thickness, after orebody thickness is determined, extracting drift is arranged in middle, across pitch direction, extracting drift along orebody trend advances certain distance must do mine locating lane on capwise, to guarantee the accuracy in direction, when orebody thickness be greater than 20m be less than 40m time, the increase parallel lane parallel with extracting drift is arranged in ore body, within the scope of 150m, digging wear arteries and veins and an arteries and veins perpendicular to trend, lane is through along the pulse outward, as ore removal gallery, horizontal vertical direction is done every 15m spacing the development heading of next segmentation.
Beneficial effect: 1, for the long and narrow narrow ore body in down-hole and thick large high-dipping ore block irregularity boundary part, extracting drift is arranged in the middle of the ore body of orebody trend, the demand of production mineral exploration engineering can taken into account, under the condition of engineering geological conditions, equipment equipment, mining technology demand can be taken into account again, significantly reducing the engineering quantity of development heading.Compare with conventional method, vertical wear wearing in arteries and veins part engineering quantity and ore body of rock mass with ore body and partly wear arteries and veins engineering quantity and have and significantly reduce, thus reduce digging ratio, reduce mining integrated cost.
2, extracting drift is arranged at the middle across pitch of long and narrow narrow ore body and thick large high-dipping ore block irregularity boundary part, greatly can improve the rate of extraction, avoid unnecessary lower wall blade-end loss (fill blade-end loss see Fig. 5,8-shovel, 9-lower wall falls ore deposit recovery permanent loss, 10-lower wall end Industry Control permanent loss).Thus reach the object improving the rate of extraction, reduce loss late.
3, according to engineering geological conditions, narrow orebody thickness is this technical scheme all available when being less than 40m.The art of this patent is then for the long and narrow narrow ore body in down-hole and thick large high-dipping ore block irregularity boundary part, controlling ore body with adopting accurate stage maximum capacity, optimum condition is created, to reach the object reducing mining cost, the rate of dilution, loss late for recovery phase improves the rate of extraction in maximum efficiency.
Accompanying drawing explanation
Fig. 1 is that narrow ore body capwise is arranged to wear arteries and veins for main extracting drift mode figure;
Fig. 2 is that narrow ore body across pitch arranges to be main extracting drift mode figure in ore body along the pulse;
Fig. 3 is that narrow ore body across pitch arranges that increasing parallel is main extracting drift mode figure along the pulse;
Fig. 4 is narrow ore body development heading Discrete control height map;
Fig. 5 is the blade-end loss schematic diagram that the development heading of narrow ore body capwise causes;
Fig. 6 is that thick large high-dipping ore block irregularity boundary part across pitch arranges extracting drift.
Detailed description of the invention
For the long and narrow narrow ore body in down-hole and thick large high-dipping ore block irregularity boundary part then in the middle of ore body, arrange crosscut along orebody trend, do main back production lane; When ore body from right flank move back adopt to most left wing time, then crosscut becomes back production lane (see Fig. 2,6-stope drift active workings).
2, the layout of development heading must be combined closely process for stoping and equipment equipment situation, and when using sublevel caving method without sill pillar and LH409E electric LHD and ore deposit rock Polodyakonov coefficient f=12-14, it is main extracting drift mode that tradition wears arteries and veins, and wearing arteries and veins route is 18m; To change between ore body along the pulse at extracting drift, only need the maximum and best transportation range of electric LHD, reality is about 150m.
3, when orebody thickness is less than 20, in conjunction with mining codes, extracting drift 6 can arrange that one in the middle of ore body; Orebody thickness is greater than 20m when being less than 40m, and will consider in follow-up development heading to arrange in ore body that an increase parallel lane 7(parallel with prospect tunnel (namely Hou Gai lane of prospecting changes extracting drift 6 into) is shown in Fig. 3,7-increases parallel lane again).
4, be that 15m(is shown in Fig. 4 in conjunction with sublevel caving method without sill pillar narrow ore body development heading Discrete control height).Extracting drift in upper and lower level is spatially in parallel relation.
As shown in Figure 6, certain mining area I-II ore body 2655m level is the main intake horizon of whole ore body, and thing two along the pulse lane is main air intake footrill.Owing to considering that construction works amount is minimum and taking into account the problem of mining skill, inserted by vent level in ore body, make two south, the ore deposits wings have part to leave over, forming big thick ore body irregularity boundary feature, is also independent long and narrow narrow ore body characteristic feature.Cause Engineering Control in local defect to some extent.After the long and narrow narrow ore body of employing adopts accurate engineering control ore deposit technology, compensate for engineering defect, compared with arranging extracting drift mode with vertical orebody trend, roadway engineering amount saves 1/3rd, and unnecessary country rock will be avoided in exploitation process to be mixed into, also will improve the rate of extraction further.
Claims (1)
1. a long and narrow narrow ore body adopts accurate engineering control ore deposit method, it is characterized in that, pre-arranged development heading, in conjunction with the design development heading of mineral exploration engineering tunnel, vertical orebody trend arranges that a mine locating route penetrates ore body, determine rock border, orebody strike ore deposit and orebody thickness, after orebody thickness is determined, extracting drift (6) is arranged in middle, across pitch direction, extracting drift (6) along orebody trend advances certain distance must do mine locating lane (11) on capwise, to guarantee the accuracy in direction, when orebody thickness be greater than 20m be less than 40m time, the increase parallel lane (7) parallel with extracting drift (6) is arranged in ore body, within the scope of 150m, digging wear arteries and veins and an arteries and veins perpendicular to trend, lane is through along the pulse outward, as ore removal gallery (4), horizontal vertical direction is done every 15m spacing the development heading of next segmentation.
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| CN201510314702.1A CN105041313A (en) | 2015-08-26 | 2015-08-26 | Long and narrow ore body accurate mining engineering ore-controlling method |
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| CN201510314702.1A CN105041313A (en) | 2015-08-26 | 2015-08-26 | Long and narrow ore body accurate mining engineering ore-controlling method |
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| CN105041313A true CN105041313A (en) | 2015-11-11 |
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Citations (5)
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| CN1114712A (en) * | 1994-06-04 | 1996-01-10 | 崔正洙 | Mining and ore dressing process new modle for mine |
| RU2312219C2 (en) * | 2005-07-26 | 2007-12-10 | Институт горного дела Севера им. Н.В. Черского Сибирского отделения Российской академии наук | Method for difficult-to-cave roof preparation for initial caving |
| CN101424186A (en) * | 2007-11-01 | 2009-05-06 | 宝钢集团上海梅山有限公司 | Method for recovering disc ore on incline ore block |
| CN101598031A (en) * | 2009-06-17 | 2009-12-09 | 山东黄金矿业(莱州)有限公司焦家金矿 | Barren rock backfill and can improve the mining methods of ore recovery ratio on the spot |
| CN103147759A (en) * | 2013-03-02 | 2013-06-12 | 玉溪大红山矿业有限公司 | Prospecting and short-hole shrinkage mining method of small inclined ore body |
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2015
- 2015-08-26 CN CN201510314702.1A patent/CN105041313A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114712A (en) * | 1994-06-04 | 1996-01-10 | 崔正洙 | Mining and ore dressing process new modle for mine |
| RU2312219C2 (en) * | 2005-07-26 | 2007-12-10 | Институт горного дела Севера им. Н.В. Черского Сибирского отделения Российской академии наук | Method for difficult-to-cave roof preparation for initial caving |
| CN101424186A (en) * | 2007-11-01 | 2009-05-06 | 宝钢集团上海梅山有限公司 | Method for recovering disc ore on incline ore block |
| CN101598031A (en) * | 2009-06-17 | 2009-12-09 | 山东黄金矿业(莱州)有限公司焦家金矿 | Barren rock backfill and can improve the mining methods of ore recovery ratio on the spot |
| CN103147759A (en) * | 2013-03-02 | 2013-06-12 | 玉溪大红山矿业有限公司 | Prospecting and short-hole shrinkage mining method of small inclined ore body |
Non-Patent Citations (2)
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| 李建云: "无底柱分段崩落法在云南昆钢大红山铁矿中的应用", 《四川建材》 * |
| 胡家峪铜矿技术科: "在矿区开发中实行探采结合", 《地质与勘探》 * |
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Application publication date: 20151111 |