CN101956555A - Mining method with different stope structure parameter transition and application thereof - Google Patents

Mining method with different stope structure parameter transition and application thereof Download PDF

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Publication number
CN101956555A
CN101956555A CN2009100546927A CN200910054692A CN101956555A CN 101956555 A CN101956555 A CN 101956555A CN 2009100546927 A CN2009100546927 A CN 2009100546927A CN 200910054692 A CN200910054692 A CN 200910054692A CN 101956555 A CN101956555 A CN 101956555A
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segmentation
ore
mining
sublevel
mine
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CN101956555B (en
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范庆霞
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SHANGHAI MEISHAN CO Ltd BAOGANG GROUP
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SHANGHAI MEISHAN CO Ltd BAOGANG GROUP
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Abstract

The invention relates to a mining method with different stope structure parameter transition. The mining method comprises that a transition subsection and an adjacent subsection are combined together for mining by adopting a subsection combined mining method. The invention also provides application of the mining method in a mine adopting bottomless pillar sublevel caving. The mining method has the advantages that: after the stope structure parameters of the mine are changed, an upper subsection and the transition subsection (or the transition subsection and a lower subsection) are combined together for back stoping, so the contacting opportunity between ores and rocks is reduced and the loss and poorness indexes in the mining process can be improved compared with the traditional method. During two different stope structure parameter transition periods, the upper subsection and the transition subsection (or the transition subsection and the lower subsection) are combined together for back stoping so as to greatly increase the ore quantity in a range controlled by a back stoping access and facilitate improving the efficiency of ore discharge equipment.

Description

A kind of mining methods of different stope structure parameter transition and application thereof
[technical field]
The present invention relates to a kind of underground mining technology, particularly a kind of mining methods of different stope structure parameter transition and application thereof.
[background technology]
Sublevel caving method without sill pillar is a kind of mining methods of simple in structure, safe and efficient, convenient management, has a wide range of applications in industry underground mines such as China's metallurgy, coloured, chemical industry.The major parameter of sublevel caving method without sill pillar exploitation has level interval, nugget size, height of lift, drift interval, ore caving interval etc.
Adopt the characteristics of sublevel caving method without sill pillar exploitation as follows: according to the occurrence condition of ore body, on level interval, become several segmentations as the level of production according to certain numerical division, and measure as the segmentation ore deposit with the ore deposit between adjacent two level of production route base plates amount, each segmentation is divided into several produces nugget, the arrangement architecture that assumes diamond in shape of the extracting drift in upper and lower each segmentation.In the sectional plan, arrange a series of tunnels such as extracting drift, ore removal connection roadway, cutting tunnel, airway, in the cutting tunnel construction cutting big gun hole, in extracting drift in the construction to fan-shaped mining medium-length hole, and in cutting tunnel, extracting drift, carry out work such as explosion and ore removal according to the requirement of schedule of extraction and development.Ore removal in extracting drift is emitted the areal model ovalize attitude of body, and spine can the residual fraction ore in route ore drawing process as can be known by draw theory, and this part ore will change next segmentation over to and emit the top of body and emit.In order to ensure the safety of actual mining and mining order rationally; requiring to go up segmentation when two segmentation back production simultaneously up and down descends segmentation in advance more than 20m; it is concordant to avoid stress to concentrate, make troubles to organism of production that the stope of the adjacent route of same segmentation should keep as far as possible; carry out stoping operation in proper order according to the retrusive mining after going to certainly in route, the main production link of stoping operation has long and medium hole drilling, charge explosion, ore removal etc. in each route.
Along with the continuous progress of mining technique, extractive equipment, sublevel caving method without sill pillar just develops towards the direction of macrostructure parameter, large-scale extractive equipment, has occurred the stope structure parameter of high sublevel, big spacing in the mine produces in succession.Generally, no foundation mine all takes to open up by stages, the form of mining by stages is built and produced, in order to improve mining efficiency, to reduce mining cost, in different construction and production phase, a lot of mines all can be optimized (promptly adopting different stope structure parameters) to stope structure parameter, therefore have the problem of different parameters transition in the mining manufacturing process, it is bigger to mine ordinary production, main economic and technical indices influence to address this problem method.In order to say something conveniently, last that claims to adopt raw parameter mining is segmented into " going up segmentation ", claims stope structure parameter to work be segmented into " transient sublevel " of the effect of forming a connecting link in changing, and first that claims to adopt new argument mining is segmented into " following segmentation ".
Traditional way has following two kinds: the one, and, the ore drawing of limiting the quantity of.The 2nd,, the not direct transition of shrink.
The ore drawing of limiting the quantity of.In the manufacturing process of mine, according to the situation of change of stope structure parameter and the corresponding relation of segmentation up and down, find out the main route that influence mining is produced, take to limit the means control yield of ore drawing in last segmentation, optimize the volume morphing of emitting of each route of transient sublevel by reducing the yield that goes up the part charge route, make transient sublevel can normally carry out ore removal management, so that stablize ore quality, improve mine loss and dilution index.
The not direct transition of shrink.In the manufacturing process of mine, according to the situation of change of stope structure parameter and the corresponding relation of segmentation up and down, characteristics according to sublevel caving method without sill pillar " above lose, below pick up ", ignore the influence degree of stope structure parameter variation to loss and dilution index in the mining production, all take the mode of cut off grade ore drawing in last segmentation, transient sublevel, following segmentation, cause overstocking of vixible ore reserve with the ore drawing of avoiding limiting the quantity of, influence the financial difficulty and the economic benefit of mine short-term.
[summary of the invention]
The objective of the invention is provides a kind of mining methods of different stope structure parameter transition at deficiency of the prior art.
One purpose more of the present invention is that a kind of purposes of mining methods of different stope structure parameter transition is provided.
For achieving the above object, the technical scheme taked of the present invention is:
A kind of mining methods of different stope structure parameter transition, after the mining activity in mine proceeds to certain segmentation, the diamond array structure of substoping route wrecked about stope structure parameter changed and causes, it is characterized in that, adopt and the method for section exploitation, transient sublevel and an adjacent with it segmentation are lumped together dig up mine.
Described, under the situation that does not change operation operations such as the back production operation was tunneled in the past, rock drilling, to go up segmentation and transient sublevel combines and carries out back production, carry out explosion and loosening ore removal in last segmentation, the requirement (being about 15%~30%) that yield satisfies tight-face blasting gets final product, and carries out a large amount of ore removals to reclaim the ore deposit amount of these two segment blasts at transient sublevel.
Described, under the situation that does not change operation operations such as the back production operation was tunneled in the past, rock drilling, transient sublevel and following segmentation combined carry out back production, carry out explosion and loosening ore removal at transient sublevel, the requirement (being about 15%~30%) that yield satisfies tight-face blasting gets final product, and carries out a large amount of ore removals to reclaim the ore deposit amount of these two segment blasts in following segmentation.
Described, in the cancellation segmentation adopt accurate engineering, in the extracting drift of transient sublevel, arrange the big gun hole cover former on the scope controlled of substoping route, carry out normal explosion, ore removal work in each segmentation.
Described, the cancellation transient sublevel adopt accurate engineering, arrange that in the extracting drift of segmentation down the big gun hole covers the scope that former transient sublevel extracting drift is controlled, and carries out normal explosion, ore removal work in each segmentation.
Described, as to produce in order to dig up mine safety, 3~5 of leading transient sublevels of the blasting work of last segmentation are more than the ore caving interval.
Described, as to produce in order to dig up mine safety, the blasting work of transient sublevel descend 3~5 of segmentations more than the ore caving interval in advance.
For realizing above-mentioned second purpose, the technical scheme that the present invention takes is: a kind of mining methods of different stope structure parameter transition are used in the mine of adopting sublevel caving method without sill pillar.
The invention has the advantages that:
(1) after the mine changes stope structure parameter, adopting the present invention will go up segmentation, transient sublevel (or transient sublevel, segmentation down) combines and carries out back production, compare with traditional way and to have reduced the chance that ore contacts with rock, can improve the loss and dilution index in the mining process.
(2) at two kinds of different stope structure parameter transition periods, will go up segmentation, transient sublevel (or transient sublevel, segmentation down) and combine and carry out back production, increased considerably the ore deposit amount in the extracting drift institute control range, help improving the ore removal device efficiency.
(3) be in the stage during haulage level when the transition segmentation, because the back height of stage haulage level ore chute position, the condition of carrying out rock drilling, explosion, ore removal work in the tunnel of long segment distance is poor, influence job safety, with transient sublevel, down segmentation combines and carries out back production and can avoid personnel, equipment to be busy comings and goings under tunnel, drop shaft position for a long time, improves the safety of ore removal work.
(4) the present invention combines two segmentations and carries out back production, and process management is simple, field control is convenient, uses in similar mines and can obtain effect preferably.
(5) the present invention is when strengthening drift interval (or strengthening drift interval and height of lift), according to the space Rankine-Hugoniot relations of emitting body, two segmentations are lumped together a mining of cancellation segmentation, not only can save significantly and adopt accurate engineering quantity, also help and improve mining production efficiency.
[description of drawings]
Figure 1A strengthens drift interval and height of lift top and section exploitation schematic diagram for the present invention;
Figure 1B strengthens drift interval for the present invention and segmentation exploitation schematic diagram is gone up in the height of lift cancellation;
Fig. 2 A is increasing drift interval of the present invention top and section exploitation schematic diagram;
Fig. 2 B is that segmentation exploitation schematic diagram is gone up in increasing drift interval cancellation of the present invention;
Fig. 3 A strengthens drift interval and height of lift bottom and section exploitation schematic diagram for the present invention;
Fig. 3 B strengthens drift interval and height of lift cancellation transient sublevel exploitation schematic diagram for the present invention;
Fig. 4 A is increasing drift interval of the present invention bottom and section exploitation schematic diagram;
Fig. 4 B is an increasing drift interval cancellation transient sublevel exploitation schematic diagram of the present invention.
---upward segmentation, 2---transient sublevel among the figure: 1,3---following segmentation, 4---former spacing L1,5---present spacing L2,6---former height H 1,7---are height H 2 now.
[specific embodiment]
Below in conjunction with accompanying drawing the specific embodiment provided by the invention is elaborated.
With reference to Figure 1A, 1B, 2A, 2B, 3A, 3B, 4A, 4B, mining activity when carrying out different stope structure parameter transition, its implementation method is as follows: the mine of adopting sublevel caving method without sill pillar, in order to improve mining efficiency, to reduce mining cost, strengthen stope structure parameter in process of production, therefore will bring the transition problem of different stope structure parameters inevitably.Tunneled in the past not changing the back production operation, under the situation of operation operations such as rock drilling, to go up segmentation, transient sublevel (or transient sublevel, following segmentation) combines and carry out back production, carry out explosion and loosening ore removal in last segmentation (or transient sublevel), the requirement (being about 15%~30%) that yield satisfies tight-face blasting gets final product, carry out a large amount of ore removals to reclaim the ore deposit amount of these two segment blasts at transient sublevel (or segmentation down), the safety of producing in order to dig up mine, the blasting work of last segmentation (or transient sublevel) be 3~5 of transient sublevels (or time segmentation) more than the ore caving interval in advance.Taking and during the method for section exploitation, the mining engineering of a segmentation of cancellation not only can be saved significantly and be adopted accurate engineering quantity, mining activity becomes more simple in the time of can also making different stope structure parameter transition, can also improve mining production efficiency simultaneously.Wherein, strengthen drift interval and height of lift top and section exploitation please referring to Figure 1A; Strengthen the cancellation of drift interval and height of lift and go up the segmentation exploitation please referring to Figure 1B; Strengthen drift interval top and section exploitation please referring to Fig. 2 A; Strengthen the drift interval cancellation and go up the segmentation exploitation please referring to Fig. 2 B; Strengthen drift interval and height of lift bottom and section exploitation please referring to Fig. 3 A; Strengthen the exploitation of drift interval and height of lift cancellation transient sublevel please referring to Fig. 3 B; Strengthen drift interval bottom and section exploitation please referring to Fig. 4 A; Strengthen the exploitation of drift interval cancellation transient sublevel please referring to Fig. 4 B.
Embodiment 1
Certain large-scale underground mine, ore body thickness is big, concentrate, compose existences-36m~-524m between, the scheme of employing built by separate periods, mining by stages, the orebody development mode is shaft development, mining methods are sublevel caving method without sill pillar.Mine first phase mining engineering level interval is 120m, and-198m is a stage haulage level, and the above stope structure parameter of-186m level is 12m * 10m (that is: height of lift 12m, drift interval 10m), nugget planar dimension 60m * 50m.In order to keep the sustainable development in mine, the second stage of the project building-up work has been carried out in the mine, in the second stage of the project, the level interval that adopts is 132m, stage haulage level is arranged on-330m, stope structure parameter is 15m * 15m (that is: height of lift 15m, drift interval 15m), nugget planar dimension 120m * 75m.-186m~-198m is the transient sublevel of two kinds of different stope structure parameters, and stope structure parameter is 12m * 15m, and height of lift is identical with first stage of the project, and drift interval is identical with the second stage of the project, plays a part to form a connecting link in the mine produces.Because the variation of stope structure parameter, variation has taken place in the diamond array structure of segmentation route about causing, and has influenced the ordinary production in mine.In order to address this problem, traditional way has two kinds.The one,, the method for the ore drawing of taking to limit the quantity of.According to the situation of change of stope structure parameter and the corresponding relation of segmentation up and down; for guarantee-186m~-the normal back production of 198m and following segmentation; find out right-186m~-198m mining produces the bigger route of influence;-162m~-the 174m segmentation takes to limit the means control yield of ore drawing; by-162m~-the 174m segmentation reduces yield is optimized the volume morphing of emitting of each route of transient sublevel; thereby assurance-186m~-198m and following segmentation normally carry out the ore removal management, and stable ore quality, improve mine loss and dilution index.The 2nd,, the method for the direct transition of shrink not.According to the situation of change of stope structure parameter and the corresponding relation of segmentation up and down, characteristics according to sublevel caving method without sill pillar " above lose, below pick up ", ignore the influence degree of stope structure parameter variation to loss and dilution index in the mining production,-174m~-the 186m segmentation ,-186m~-the 198m segmentation ,-198m~-the 213m segmentation all takes the mode of cut off grade ore drawing, cause overstocking of vixible ore reserve with the ore drawing of avoiding limiting the quantity of, influence the financial difficulty and the economic benefit of mine short-term.According to the present invention, adopt the mine of sublevel caving method without sill pillar, in the mining manufacturing process, change the back mine loss and dilution is brought influence for fear of stope structure parameter,-174m~-the 186m segmentation adopts normal ore removal mode, general-186m~-the 198m segmentation,-198m~-the 213m segmentation lumps together and carries out back production,-186m~-explosion and loosening ore removal are carried out in the 198m segmentation, and (requirement that yield satisfies tight-face blasting gets final product, be about 15%~30%),-198m~-the 213m segmentation carries out a large amount of ore removals to reclaim the ore deposit amount of these two segment blasts, the safety of producing in order to dig up mine ,-186m~-blasting work of 198m segmentation should leading-198m~-3~5 of 213m segmentations are more than the ore caving interval.
Embodiment 2
Certain production mine, ore deposit reserve is big, adopts ramp and vertical shaft combined development mode, sublevel caving method without sill pillar mining.According to the mining engineering design, it is 15m * 15m (that is: height of lift 15m, drift interval 15m) that the mine produces the stope structure parameter that adopts, nugget planar dimension 120m * 75m.In order to improve constantly mining efficiency, to reduce mining cost, the mine is keeping having strengthened drift interval under the constant situation of height of lift, in producing, mining adopted big spacing stope structure parameter (that is: height of lift 15m, drift interval 20m), and-implement in full below the 258m.-243m ,-258m is according to different drift interval layout mining routes, and variation has taken place in the diamond array structure of segmentation route about causing, and what therefore influence was dug up mine and produced normally carries out.In order to address this problem, traditional way has two kinds.The one,, the method for the ore drawing of taking to limit the quantity of.According to the situation of change of stope structure parameter and the corresponding relation of segmentation up and down; for guarantee-243m~-the normal back production of 258m and following segmentation; find out right-228m~-243m mining produces the bigger route of influence;-228m~-the 243m segmentation takes to limit the means control yield of ore drawing; by-228m~-the 243m segmentation reduces yield is optimized the volume morphing of emitting of each route of transient sublevel; thereby assurance-243m~-258m and following segmentation normally carry out the ore removal management, and stable ore quality, improve mine loss and dilution index.The 2nd,, the method for the direct transition of shrink not.According to the situation of change of stope structure parameter and the corresponding relation of segmentation up and down, characteristics according to sublevel caving method without sill pillar " above lose, below pick up ", ignore the influence degree of stope structure parameter variation to loss and dilution index in the mining production,-228m~-the 243m segmentation ,-243m~-the 258m segmentation ,-258m~-the 273m segmentation all takes the mode of cut off grade ore drawing, cause overstocking of vixible ore reserve with the ore drawing of avoiding limiting the quantity of, influence the financial difficulty and the economic benefit of mine short-term.According to the present invention, adopt the mine of sublevel caving method without sill pillar, in the mining manufacturing process, change the back mine loss and dilution is brought influence for fear of stope structure parameter,-228m~-the 243m segmentation adopts normal ore removal mode, general-243m~-the 258m segmentation,-258m~-the 273m segmentation lumps together and carries out back production,-243m~-explosion and loosening ore removal are carried out in the 258m segmentation, and (requirement that yield satisfies tight-face blasting gets final product, be about 15%~30%),-258m~-the 273m segmentation carries out a large amount of ore removals to reclaim the ore deposit amount of these two segment blasts, the safety of producing in order to dig up mine ,-243m~-blasting work of 258m segmentation should leading-258m~-3~5 of 273m segmentations are more than the ore caving interval.
Embodiment 3
Certain small-sized production mine, ore body be imbedded in+45m~-360m between, shaft development mode, sublevel caving method without sill pillar mining are adopted in 75 °~85 ° at the long 1200m of orebody trend, average thickness 35m, inclination angle.According to the mining engineering design, it is 10m * 10m (that is: height of lift 10m, drift interval 10m) that the mine produces the stope structure parameter that adopts, and arranges a bite drop shaft every 6 routes in stope.In order to improve constantly mining efficiency, to reduce mining cost, the mine is keeping having strengthened drift interval under the constant situation of height of lift, in producing, mining adopted big spacing stope structure parameter (that is: height of lift 10m, drift interval 12.5m), and-implement in full below the 60m.-50m ,-60m is according to different drift interval layout mining routes, and variation has taken place in the diamond array structure of segmentation route about causing, and what therefore influence was dug up mine and produced normally carries out.In order to address this problem, traditional way has two kinds.The one,, the method for the ore drawing of taking to limit the quantity of.According to the situation of change of stope structure parameter and the corresponding relation of segmentation up and down; for guarantee-50m~-the normal back production of 60m and following segmentation; find out right-50m~-60m mining produces the bigger route of influence;-40m~-the 50m segmentation takes to limit the means control yield of ore drawing; by-40m~-the 50m segmentation reduces yield is optimized the volume morphing of emitting of each route of transient sublevel; thereby assurance-50m~-60m and following segmentation normally carry out the ore removal management, and stable ore quality, improve mine loss and dilution index.The 2nd,, the method for the direct transition of shrink not.According to the situation of change of stope structure parameter and the corresponding relation of segmentation up and down, characteristics according to sublevel caving method without sill pillar " above lose, below pick up ", ignore the influence degree of stope structure parameter variation to loss and dilution index in the mining production,-40m~-the 50m segmentation ,-50m~-the 60m segmentation ,-60m~-the 70m segmentation all takes the mode of cut off grade ore drawing, cause overstocking of vixible ore reserve with the ore drawing of avoiding limiting the quantity of, influence the financial difficulty and the economic benefit of mine short-term.According to the present invention, adopt the mine of sublevel caving method without sill pillar, in the mining manufacturing process, change the back mine loss and dilution is brought influence for fear of stope structure parameter,-40m~-the 50m segmentation adopts normal ore removal mode, general-50m~-the 60m segmentation,-60m~-the 70m segmentation lumps together and carries out back production,-50m~-explosion and loosening ore removal are carried out in the 60m segmentation, and (requirement that yield satisfies tight-face blasting gets final product, be about 15%~30%),-60m~-the 70m segmentation carries out a large amount of ore removals to reclaim the ore deposit amount of these two segment blasts, the safety of producing in order to dig up mine ,-50m~-blasting work of 60m segmentation should leading-60m~-3~5 of 70m segmentations are more than the ore caving interval.
Embodiment 4
Certain large-scale underground mine, ore body thickness is big, concentrate, compose existences-36m~-524m between, the scheme of employing built by separate periods, mining by stages, the orebody development mode is shaft development, mining methods are sublevel caving method without sill pillar.Mine first phase mining engineering level interval is 120m, and-198m is a stage haulage level, and the above stope structure parameter of-186m level is 12m * 10m (that is: height of lift 12m, drift interval 10m), nugget planar dimension 60m * 50m.In order to keep the sustainable development in mine, the second stage of the project building-up work has been carried out in the mine, in the second stage of the project, the level interval that adopts is 132m, stage haulage level is arranged on-330m, stope structure parameter is 15m * 15m (that is: height of lift 15m, drift interval 15m), nugget planar dimension 120m * 75m.-186m~-198m is the transient sublevel of two kinds of different stope structure parameters, and stope structure parameter is 12m * 15m, and height of lift is identical with first stage of the project, and drift interval is identical with the second stage of the project, plays a part to form a connecting link in the mine produces.Because the variation of stope structure parameter, variation has taken place in the diamond array structure of segmentation route about causing, and has influenced the ordinary production in mine.In order to address this problem, traditional way has two kinds.The one,, the method for the ore drawing of taking to limit the quantity of.According to the situation of change of stope structure parameter and the corresponding relation of segmentation up and down; for guarantee-186m~-the normal back production of 198m and following segmentation; find out right-186m~-198m mining produces the bigger route of influence;-174m~-the 186m segmentation takes to limit the means control yield of ore drawing; by-174m~-the 186m segmentation reduces yield is optimized the volume morphing of emitting of each route of transient sublevel; thereby assurance-186m~-198m and following segmentation normally carry out the ore removal management, and stable ore quality, improve mine loss and dilution index.The 2nd,, the method for the direct transition of shrink not.According to the situation of change of stope structure parameter and the corresponding relation of segmentation up and down, characteristics according to sublevel caving method without sill pillar " above lose, below pick up ", ignore the influence degree of stope structure parameter variation to loss and dilution index in the mining production,-174m~-the 186m segmentation ,-186m~-the 198m segmentation ,-198m~-the 213m segmentation all takes the mode of cut off grade ore drawing, cause overstocking of vixible ore reserve with the ore drawing of avoiding limiting the quantity of, influence the financial difficulty and the economic benefit of mine short-term.According to the present invention, adopt the mine of sublevel caving method without sill pillar, in the mining manufacturing process, change the back mine loss and dilution is brought influence for fear of stope structure parameter, general-174m~-186m ,-186m~-the 198m segmentation be merged into a segmentation formation-174m~-198m segmentation and arrange correlation engineering, this moment, the degree of depth in big gun hole can be more greatly ,-174m~-the 198m segmentation ,-198m~-the 213m segmentation carries out normal explosion, ore removal work.
Embodiment 5
Certain production mine, ore deposit reserve is big, adopts ramp and vertical shaft combined development mode, sublevel caving method without sill pillar mining.According to the mining engineering design, it is 15m * 15m (that is: height of lift 15m, drift interval 15m) that the mine produces the stope structure parameter that adopts, nugget planar dimension 120m * 75m.In order to improve constantly mining efficiency, to reduce mining cost, the mine is keeping having strengthened drift interval under the constant situation of height of lift, in producing, mining adopted big spacing stope structure parameter (that is: height of lift 15m, drift interval 15m), and-implement in full below the 258m.-243m ,-258m is according to different drift interval layout mining routes, and variation has taken place in the diamond array structure of segmentation route about causing, and what therefore influence was dug up mine and produced normally carries out.In order to address this problem, traditional way has two kinds.The one,, the method for the ore drawing of taking to limit the quantity of.According to the situation of change of stope structure parameter and the corresponding relation of segmentation up and down; for guarantee-243m~-the normal back production of 258m and following segmentation; find out right-228m~-243m mining produces the bigger route of influence;-228m~-the 243m segmentation takes to limit the means control yield of ore drawing; by-228m~-the 243m segmentation reduces yield is optimized the volume morphing of emitting of each route of transient sublevel; thereby assurance-243m~-258m and following segmentation normally carry out the ore removal management, and stable ore quality, improve mine loss and dilution index.The 2nd,, the method for the direct transition of shrink not.According to the situation of change of stope structure parameter and the corresponding relation of segmentation up and down, characteristics according to sublevel caving method without sill pillar " above lose, below pick up ", ignore the influence degree of stope structure parameter variation to loss and dilution index in the mining production,-228m~-the 243m segmentation ,-243m~-the 258m segmentation ,-258m~-the 273m segmentation all takes the mode of cut off grade ore drawing, cause overstocking of vixible ore reserve with the ore drawing of avoiding limiting the quantity of, influence the financial difficulty and the economic benefit of mine short-term.According to the present invention, adopt the mine of sublevel caving method without sill pillar, in the mining manufacturing process, change the back mine loss and dilution is brought influence for fear of stope structure parameter,-228m~-the 243m segmentation adopts normal ore removal mode, general-243m~-the 258m segmentation ,-258m~-the 273m segmentation be merged into a segmentation formation-243m~-273m segmentation and arrange correlation engineering, this moment, the degree of depth in big gun hole can be more greatly ,-243m~-the 273m segmentation ,-273m~-the 288m segmentation carries out normal explosion, ore removal work.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the inventive method; can also make some improvement and replenish, these improvement and replenish and also should be considered as protection scope of the present invention.

Claims (8)

1. the mining methods of different stope structure parameter transition is characterized in that, adopt and the method for section exploitation, transient sublevel and an adjacent with it segmentation are lumped together dig up mine.
2. mining methods according to claim 1, it is characterized in that, to go up segmentation and transient sublevel combines and carries out back production, carry out explosion and loosening ore removal in last segmentation, yield satisfies the requirement of tight-face blasting, carries out a large amount of ore removals to reclaim the ore deposit amount of these two segment blasts at transient sublevel.
3. mining methods according to claim 1, it is characterized in that, transient sublevel and following segmentation combined carry out back production, carry out explosion and loosening ore removal at transient sublevel, yield satisfies the requirement of tight-face blasting, carries out a large amount of ore removals to reclaim the ore deposit amount of these two segment blasts in following segmentation.
4. mining methods according to claim 1 is characterized in that, in the cancellation segmentation adopt accurate engineering, in the extracting drift of transient sublevel, arrange the big gun hole cover former on the scope controlled of substoping route, carry out normal explosion, ore removal work in each segmentation.
5. mining methods according to claim 1, it is characterized in that, cancel the accurate engineering of adopting of transient sublevel, arrange that in the extracting drift of segmentation down the big gun hole covers the scope that former transient sublevel extracting drift is controlled, and carries out normal explosion, ore removal work in each segmentation.
6. mining methods according to claim 1 and 2 is characterized in that, 3~5 of leading transient sublevels of the blasting work of last segmentation are more than the ore caving interval.
7. mining methods according to claim 1 and 2 is characterized in that, the blasting work of transient sublevel descends 3~5 of segmentations more than the ore caving interval in advance.
8. mining methods according to claim 1 and 2 are used in the mine of adopting sublevel caving method without sill pillar.
CN200910054692.7A 2009-07-13 2009-07-13 Mining method with different stope structure parameter transition and application thereof Expired - Fee Related CN101956555B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103643955A (en) * 2013-12-18 2014-03-19 中国华冶科工集团有限公司 Stable middle section conversion method of sill pillar-free sublevel caving mining
CN104153780A (en) * 2014-07-28 2014-11-19 鞍钢集团矿业公司 Sublevel caving shrinkage continuous recovery process for thin ore body
CN108131142A (en) * 2017-12-08 2018-06-08 南京钢铁股份有限公司 A kind of big-interval bottom-column-free mining methods
CN108625854A (en) * 2017-03-18 2018-10-09 南京梅山冶金发展有限公司 A kind of cut off grade ore drawing front ore structure measurement method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1470740A (en) * 2002-07-25 2004-01-28 宝钢集团上海梅山有限公司 Big-interval bottom-column-free sectional caving stoping method
CN1635265A (en) * 2003-12-26 2005-07-06 宝钢集团上海梅山有限公司 Ore drawing process during structural parameter transition of sublevel caving method without sill pillar
CN1693662A (en) * 2005-05-23 2005-11-09 东北大学 Improved sublevel caving method without bottom column
CN101042051A (en) * 2007-01-18 2007-09-26 宝钢集团上海梅山有限公司 Arrangement method for initial mining sublevel stoping drift with sublevel caving method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1470740A (en) * 2002-07-25 2004-01-28 宝钢集团上海梅山有限公司 Big-interval bottom-column-free sectional caving stoping method
CN1635265A (en) * 2003-12-26 2005-07-06 宝钢集团上海梅山有限公司 Ore drawing process during structural parameter transition of sublevel caving method without sill pillar
CN1693662A (en) * 2005-05-23 2005-11-09 东北大学 Improved sublevel caving method without bottom column
CN101042051A (en) * 2007-01-18 2007-09-26 宝钢集团上海梅山有限公司 Arrangement method for initial mining sublevel stoping drift with sublevel caving method

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
杨运林: "无底柱分段崩落法放矿方法研究", 《采矿技术》 *
柳小波等: "大参数多分段并行无贫化放矿的无底柱分段崩落法", 《中国矿业》 *
范庆霞: "梅山铁矿采场崩矿步距的探讨", 《金属矿山》 *
范庆霞: "过渡分段采场不同结构参数的研究", 《IM&P化工矿物与加工》 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103643955A (en) * 2013-12-18 2014-03-19 中国华冶科工集团有限公司 Stable middle section conversion method of sill pillar-free sublevel caving mining
CN103643955B (en) * 2013-12-18 2016-06-01 中国华冶科工集团有限公司 Sublevel caving method without sill pillar mining stage casing smooth conversion method
CN104153780A (en) * 2014-07-28 2014-11-19 鞍钢集团矿业公司 Sublevel caving shrinkage continuous recovery process for thin ore body
CN104153780B (en) * 2014-07-28 2016-06-01 鞍钢集团矿业公司 Lean ore body sublevel caving stays ore deposit continuous stoping technique
CN108625854A (en) * 2017-03-18 2018-10-09 南京梅山冶金发展有限公司 A kind of cut off grade ore drawing front ore structure measurement method
CN108625854B (en) * 2017-03-18 2019-09-20 南京梅山冶金发展有限公司 A kind of cut off grade ore drawing front ore structure measurement method
CN108131142A (en) * 2017-12-08 2018-06-08 南京钢铁股份有限公司 A kind of big-interval bottom-column-free mining methods

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