CN106703876A - Ore drawing simulation method using non-pillar sublevel caving method - Google Patents
Ore drawing simulation method using non-pillar sublevel caving method Download PDFInfo
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- CN106703876A CN106703876A CN201510766874.2A CN201510766874A CN106703876A CN 106703876 A CN106703876 A CN 106703876A CN 201510766874 A CN201510766874 A CN 201510766874A CN 106703876 A CN106703876 A CN 106703876A
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- ore drawing
- ore
- simulation
- sublevel caving
- laboratory analog
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000004088 simulation Methods 0.000 title claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000011160 research Methods 0.000 claims abstract description 12
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 238000010790 dilution Methods 0.000 claims abstract description 5
- 239000012895 dilution Substances 0.000 claims abstract description 5
- 239000000178 monomer Substances 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 4
- 238000002474 experimental method Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 5
- 239000010878 waste rock Substances 0.000 abstract 1
- 230000011218 segmentation Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses an ore drawing simulation method using a non-pillar sublevel caving method. The simulation method includes the following steps that firstly, a laboratory analog simulation monomer ore drawing test is conducted; secondly, a Dahongshan iron ore numerical ore drawing model is built through PFC3d numerical simulation, flowing of ore and flowing of waste rock are simulated respectively by means of different particles, dynamic reoccurrence of the whole ore drawing process is achieved, and loss and dilution indexes under different structural parameter combinations of ore drawing achieved through the non-pillar sublevel caving method are obtained; thirdly, the laboratory analog simulation test and PFC3d software numerical simulation are used for research, and the optimal ore drawing pace and tunnel size parameter combination, a tunnel distance value and the like are obtained. According to the ore drawing simulation method using the non-pillar sublevel caving method, preferable research on the ore drawing pace and tunnel size parameter combination and preferable research on the tunnel distance are conducted respectively in the aspects of the laboratory analog simulation ore drawing test and PFC3d software numerical simulation, and the method plays an important role in guiding ore drawing.
Description
Technical field
The present invention relates to one kind simulation ore drawing method, and in particular to a kind of sublevel caving method without sill pillar simulates ore drawing method, belong to simulation ore drawing method and technology field.
Background technology
Broken ore is under the covering of avalanche country rock, released in approximate " V " shape groove by gravity by stope drift active workings one end, this ore drawing is called Side ore drawing, the ore drawing of sublevel caving method without sill pillar belongs to Side ore drawing, due to the obstruction of end wall, Ore Flows ateliosis, is that an asymmetric, lateral symmetry spheroid in longitudinal direction lacks；Including height of lift, route spacing and ore caving interval etc., the various combination of these three parameters will directly affect final time poor index to sublevel caving method without sill pillar stope main structure parameters；From the point of view of the multiple Loose medium arranging situation of segmentation up and down of ore drawing test simulation in the last few years, route spacing is equal with height of lift, when the row of route explosion up and down is mutually aligned, this stope structure parameter may not be optimal, it is segmented into from the point of view of the ore drawing control permutation and combination of crossing according to upper and lower multiple, when adjacent spheroid is tangent two-by-two up and down, recovering effect is best, dilution is minimum；This high sublevel and big spacing stope structure parameter are not to obtain size with height of lift and route distance values to determine, but divided according to Loose medium planar alignment form；Elder brother's steel Dahongshan iron ore is located at Yunnan Province's Yuxi, it is one of underground metallurgical mine of current largest domestic scale, the phase of underground mining one design annual capacity is 4,000,000 t/a, design uses high sublevel, big-interval bottom-column-free sectional caving stoping method and advanced trackless digging and carrier loader, the a height of 20m of segmentation that one phase was using, route spacing 20m, to ensure a phase, the need for the normal linking and bigger parameter back production of second phase production, second phase planning intends that height of lift is brought up into 30m in 400m following two levels, structural parameters are preferably studied under change segmentation parameter high is carried out for this, launch ore drawing control development parameter study using laboratory analog simulation ore drawing experiment, optimal drawing pace and the preferred research of route dimensional parameters combination；But existing laboratory analog simulation ore drawing test operation process is complex.
The content of the invention
（One）The technical problem to be solved
To solve the above problems, the present invention proposes a kind of sublevel caving method without sill pillar simulation ore drawing method, from the experiment of laboratory analog simulation ore drawing, PFC3dThe aspect of Software Numerical Simulation two launches drawing pace and preferred, the preferred research of route spacing of route dimensional parameters combination etc. respectively, reasonable drawing pace index is 6.72 ~ 7.56m under the conditions of having obtained change segmentation ore drawing high, and reasonable route spacing index is the conclusion sublevel caving method without sill pillar Ore drawing structure parameter optimization researchs such as 25m significant to instructing ore drawing to work.
（Two）Technical scheme
Sublevel caving method without sill pillar of the invention simulates ore drawing method, comprises the following steps：
The first step：Tested by laboratory analog simulation monomer ore drawing；
Second step：Using PFC3dNumerical simulation, set up Dahongshan iron ore numerical value Ore drawing model, simulate the flowing of ore and barren rock respectively with different particles, realize the dynamic reproduction of ore drawing overall process, and the loss and dilution index under the combination of sublevel caving method without sill pillar ore drawing Different structural parameters is obtained, so as to it is preferred that go out reasonable route spacing index for 25m；
3rd step：Using the experiment of laboratory analog simulation, PFC3dSoftware Numerical Simulation launches research, obtains optimal drawing pace and the combination of route dimensional parameters, route distance values etc., significant to instructing ore drawing to work.
（Three）Beneficial effect
Compared with prior art, sublevel caving method without sill pillar of the invention simulation ore drawing method, from the experiment of laboratory analog simulation ore drawing, PFC3dThe aspect of Software Numerical Simulation two launches drawing pace and preferred, the preferred research of route spacing of route dimensional parameters combination etc. respectively, reasonable drawing pace index is 6.72 ~ 7.56m under the conditions of having obtained change segmentation ore drawing high, and reasonable route spacing index is the conclusion sublevel caving method without sill pillar Ore drawing structure parameter optimization researchs such as 25m significant to instructing ore drawing to work.
Specific embodiment
A kind of sublevel caving method without sill pillar simulates ore drawing method, comprises the following steps：
The first step：Tested by laboratory analog simulation monomer ore drawing；
Second step：Using PFC3dNumerical simulation, set up Dahongshan iron ore numerical value Ore drawing model, simulate the flowing of ore and barren rock respectively with different particles, realize the dynamic reproduction of ore drawing overall process, and the loss and dilution index under the combination of sublevel caving method without sill pillar ore drawing Different structural parameters is obtained, so as to it is preferred that go out reasonable route spacing index for 25m；
3rd step：Using the experiment of laboratory analog simulation, PFC3dSoftware Numerical Simulation launches research, obtains optimal drawing pace and the combination of route dimensional parameters, route distance values etc., significant to instructing ore drawing to work.
Tested by laboratory analog simulation monomer ore drawing；Research show that the development parameters that spheroid lacks under different releasing height are transferred out in the change segmentation high of Dahongshan iron ore, including semiaxis value and eccentricity etc., discloses the scarce law of development of spheroid；It is 6.72 ~ 7.56m that reasonable drawing pace index under having obtained the change segmentation high of Dahongshan iron ore is tested by laboratory analog simulation solid ore drawing, and reasonable route dimensional parameters are combined as 4.2mX4m.
Embodiment described above is only that the preferred embodiment of the present invention is described, and not the spirit and scope of the present invention are defined.On the premise of design concept of the present invention is not departed from; the all variations and modifications that this area ordinary person makes to technical scheme; protection scope of the present invention all should be dropped into, claimed technology contents of the invention have all been recorded in detail in the claims.
Claims (1)
1. a kind of sublevel caving method without sill pillar simulates ore drawing method, it is characterised in that：Comprise the following steps：
The first step：Tested by laboratory analog simulation monomer ore drawing；
Second step：Using PFC3dNumerical simulation, it is established that Dahongshan iron ore numerical value Ore drawing model, the flowing of ore and barren rock is simulated with different particles respectively, realizes the dynamic reproduction of ore drawing overall process, and obtains the loss and dilution index under the combination of sublevel caving method without sill pillar ore drawing Different structural parameters；
3rd step：Using the experiment of laboratory analog simulation, PFC3dSoftware Numerical Simulation launches research, obtains optimal drawing pace and the combination of route dimensional parameters, route distance values etc..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766874.2A CN106703876A (en) | 2015-11-12 | 2015-11-12 | Ore drawing simulation method using non-pillar sublevel caving method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766874.2A CN106703876A (en) | 2015-11-12 | 2015-11-12 | Ore drawing simulation method using non-pillar sublevel caving method |
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| Publication Number | Publication Date |
|---|---|
| CN106703876A true CN106703876A (en) | 2017-05-24 |
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| CN201510766874.2A Pending CN106703876A (en) | 2015-11-12 | 2015-11-12 | Ore drawing simulation method using non-pillar sublevel caving method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107128618A (en) * | 2017-06-26 | 2017-09-05 | 辽宁科技大学 | The lab simulation ore drawing device and method of a kind of automatic height adjustment |
| CN110410077A (en) * | 2019-07-05 | 2019-11-05 | 东北大学 | A kind of Caving Method with Large Space Side ore drawing model considering wall effect |
| CN111749696A (en) * | 2020-06-29 | 2020-10-09 | 内蒙古科技大学 | Method capable of completely acquiring ore residues after caving method ore drawing simulation test |
-
2015
- 2015-11-12 CN CN201510766874.2A patent/CN106703876A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107128618A (en) * | 2017-06-26 | 2017-09-05 | 辽宁科技大学 | The lab simulation ore drawing device and method of a kind of automatic height adjustment |
| CN107128618B (en) * | 2017-06-26 | 2020-07-28 | 辽宁科技大学 | Indoor simulated ore drawing device and method capable of automatically adjusting height |
| CN110410077A (en) * | 2019-07-05 | 2019-11-05 | 东北大学 | A kind of Caving Method with Large Space Side ore drawing model considering wall effect |
| CN111749696A (en) * | 2020-06-29 | 2020-10-09 | 内蒙古科技大学 | Method capable of completely acquiring ore residues after caving method ore drawing simulation test |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |
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| WD01 | Invention patent application deemed withdrawn after publication |