CN102701696A - Ore rock similar material for model test for transferring open pit mining into underground mining - Google Patents
Ore rock similar material for model test for transferring open pit mining into underground mining Download PDFInfo
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Abstract
The invention provides an ore rock similar material for a model test for transferring open pit mining into underground mining. The ore rock similar material at least comprises an ore body and upper and lower bottom wall surrounding rock body similar material and a fault simulation material, wherein the ore body and upper and lower bottom wall surrounding rock body similar material is formed by mixing and curing main aggregate, a cementing agent and additive; the main aggregate comprises barite powder and quartz sand and one of iron ore powder and reduced iron powder; the cementing agent is unsaturation resin and gypsum; the additive at least comprises glycerol and water; and the fault simulation material is a polypropylene film and is adhered to the ore body and upper and lower bottom wall surrounding rock body similar material. According to the similar material, the defects in the prior art are overcome; the ore rock similar material is low in preparation cost, stable in performance, easy to prepare, and short in curing period; the raw materials are wide in source and low in price and does not have any toxic or side effect; and scientific basis is provided for research on the relative scientific technology for realizing safe working of a mode of transferring open pit mining into underground mining.
Description
Technical field
The ore deposit petrofacies that the present invention relates to use in a kind of model trial of transition from open-pit underground mining are like material, particularly a kind of experimental model of taking into account ore body and upper lower burrs country rock body analog material and tomography simulation material.
Background technology
The transition from open-pit underground mining is the inexorable trend of domestic and international surface mine development.In the recovery process, high steep open slope and underground mining influence each other and restrict, and the existence of high steep open slope affects the safety of underground mining, and underground mining can influence the stable of slope project equally.Its mechanism that influences each other is basis and the theoretical foundation that guarantees Mine Safety in Production, and physical experiments is the important means of its research.The physical simulation experiment technology is the effective means of the special engineering geological problem being carried out reduced scale research according to similarity principle, can be more all sidedly, Simulation of Complex underground engineering structure, complex geological structure, complicated subterranean strata syntagmatic truly.Choosing of cast material is most important basic link in the model trial; The rock analog material should satisfy the requirement that severe is big, intensity is low with modulus of deformation, elastoplasticity is similar with rock mass; Find very difficulty of on all four cast material; Usually the problem character of studying is as required tested and is analyzed through a large amount of, and the similar material of significant parameter is satisfied in searching.
At present less, and existing cast material more or less possesses following shortcoming to the physical Model Study of transition from open-pit underground mining: as cast material intensity excessively can't satisfy small scale engineering entity ratio of similitude, the simulation rock body types is comparatively single, manufacture craft is comparatively complicated, material cost is high and source inconvenience etc.In mould simulation, must consider the simulation of natural fault in addition, and mainly consider from frictional coefficient and cohesive force two aspects to the transition from open-pit underground mining.The method that external many investigators adopt varnish to mix railway grease and talcum powder bonding aspect is simulated; This class methods mimic structural plane has high friction coefficient and cohesive force; But because temperature variation and spraying coating process be to the influence of its adhesive property, the achievement plastisied dispersion is big, poor stability.Units such as institute of long section, Tsing-Hua University wait with the paper of different slicknesss and simulate the tomography structural plane, and simulate effect is better, but paper is prone to the moisture absorption, only is applicable to that therefore the tomography under the drying conditions is simulated.
Summary of the invention
The invention provides a kind of transition from open-pit underground mining model trial ore deposit petrofacies like material, solved the deficiency in the above-mentioned background technology, its preparation cost is cheap, technology is simple.
Realize that the technical scheme that above-mentioned purpose of the present invention adopted is:
A kind of transition from open-pit underground mining model trial ore deposit petrofacies are like material; At least comprise ore body and upper lower burrs country rock body analog material and tomography simulation material; Wherein ore body and upper lower burrs country rock body analog material are formed by main aggregate, jointing compound and additive mixing after fixing; Main aggregate comprises ground barium sulfate and silica sand, and a kind of among both of powdered iron ore, reduced iron powder, and jointing compound is unsaturated polyester and gypsum; Additive comprises G & W at least, and the mass percent of each component is in described ore body and the upper lower burrs country rock body analog material:
Described tomography simulation material is a PP SHEET FOR OPP TAPE, and the tomography simulation material is bonded on ore body and the upper lower burrs country rock body analog material.
When ore body and upper lower burrs country rock body equivalent material simulating marble, the mass percent of described ore body and upper lower burrs country rock body each component of analog material and each component is:
When ore body and the long amphibolite of upper lower burrs country rock body equivalent material simulating, the mass percent of described ore body and upper lower burrs country rock body each component of analog material and each component is:
When ore body and upper lower burrs country rock body equivalent material simulating iron ore body, the mass percent of described ore body and upper lower burrs country rock body each component of analog material and each component is:
Described tomography simulation material is bonded on ore body and the upper lower burrs country rock body analog material through white glue with vinyl.
Transition from open-pit underground mining model trial provided by the invention ore deposit petrofacies have following advantage like material:
1, is the self-weight stress field of effectively simulating country rock; The bigger reduced iron powder of severe, ground barium sulfate and powdered iron ore have been used in the present invention's prescription; And less silica sand and the gypsum of density; Thereby the severe distribution range of analog material is bigger, can effectively simulate the self-weight stress field of different depths place rock ore body.
2, cast material physical and mechanical parameter of the present invention is little and parameter variation range is wider, so cast material can satisfy the similar requirement of different sorts rock pit wood material.
3, the molded material test block is easy to cutting and bonding, therefore can be spliced into the test whole model of different shapes size.
4, the cast material of invention has stable in properties, manufacture craft is simple, curing cycle is short, material source is extensive and advantage such as cheap and non-toxic spinoff, has advantages of high practicability.
5, among the present invention; Adopt PP SHEET FOR OPP TAPE simulation tomography material; It is high that PP SHEET FOR OPP TAPE has a light weight, nontoxic, odorless, protection against the tide, physical strength; Advantage such as dimensional stability is good, high-clarity, good luster, good barrier property, shock strength are high, low temperature resistant, its over-all properties is superior to moistureproof zellglas, Vilaterm (PE) film, PET film, is a kind of ideal tomography simulation material.
The present invention is actual with actual iron ore transition from open-pit underground mining engineering to be support; Develop all kinds of rocks ore deposit and tomography analog material; Development is the basis of transition from open-pit subsurface model experimental study; Have important supporting role to disclosing avalanche method and the underground mining mechanism that influences each other, can supply the high gradient slope model investigation reference in fields such as traffic, water conservancy and hydropower, mine.
Description of drawings
Fig. 1 be among the embodiment 1 prepared ore deposit petrofacies like the single compressing stress strain curve figure of material;
Fig. 2 be among the embodiment 2 prepared ore deposit petrofacies like the single compressing stress strain curve figure of material;
Fig. 3 be among the embodiment 3 prepared ore deposit petrofacies like the single compressing stress strain curve figure of material;
Fig. 4 be among the embodiment 4 prepared ore deposit petrofacies like the single compressing stress strain curve figure of material;
Fig. 5 be among the embodiment 5 prepared ore deposit petrofacies like the single compressing stress strain curve figure of material;
Fig. 6 be among the embodiment 6 prepared ore deposit petrofacies like the single compressing stress strain curve figure of material;
Fig. 7 be among the embodiment 7 prepared ore deposit petrofacies like the single compressing stress strain curve figure of material;
Fig. 8 be among the embodiment 8 prepared ore deposit petrofacies like the single compressing stress strain curve figure of material;
Fig. 9 be among the embodiment 9 prepared ore deposit petrofacies like the single compressing stress strain curve figure of material;
Figure 10 is the shear-stress figure of the tomography simulation material among the embodiment 1.
Embodiment
The present invention is done bright in detail specifically below in conjunction with specific embodiment.
Embodiment 1
Ore body in the present embodiment and upper lower burrs country rock body analog material are made up of following component:
Ore body and upper lower burrs country rock body analog material preparation method are following: 1, fully mix is even by said ratio weighing master's aggregate and in cement plaster blender; 2, add consolidating material and additive successively, continue to stir 3～5 minutes; The compound that 3, will mix and stir is poured compaction moulding in the steel die into; 4, form removal is put into baking oven with the model of making, and maintenance got final product in 7 days under 30 degree left and right sides constant temperature.
Ore body that makes in the present embodiment and upper lower burrs country rock body analog material maximum density can reach 2.84 g/cm
3, be suitable for simulating marble.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material single compressing stress strain curve are as shown in Figure 1.
The tomography simulation material adopts PP SHEET FOR OPP TAPE.Ore body and the test block of upper lower burrs country rock body analog material are cut into the shape of tomography; White glue with vinyl with different denseness is bonded at PP SHEET FOR OPP TAPE between the test block of tomography both sides then; In the present embodiment; The ratio of water and white glue with vinyl is 1:1, evenly smears 3 strokes with hairbrush in test block and PP SHEET FOR OPP TAPE surface, treats can make an experiment after white glue with vinyl is done.
The shear-stress figure of the tomography simulation material that provides in the present embodiment is shown in figure 10, and its fault belt shearing curve is:
y=0.834x+43.84
R
2=0.996
Through detecting, the ultimate compression strength of this tomography simulation material is 46.17Kpa, and its physical strength is higher, and dimensional stabilizing is better and shock strength is also higher.
Embodiment 2
Ore body in the present embodiment and upper lower burrs country rock body analog material are made up of following component:
Consistent among ore body and upper lower burrs country rock body analog material preparation method and the embodiment 1 in the present embodiment.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material are suitable for simulating marble.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material single compressing stress strain curve are as shown in Figure 2, and its ultimate compression strength can reach 0.91 Mpa and 186Mpa with the bullet mould.
The tomography simulation material adopts PP SHEET FOR OPP TAPE, according to embodiment 1 in identical method prepare the tomography simulation material.In the present embodiment, the ratio of water and white glue with vinyl is 1:1, evenly smears 2 strokes with hairbrush in test block and PP SHEET FOR OPP TAPE surface, treats can make an experiment after white glue with vinyl is done.
Embodiment 3
Ore body in the present embodiment and upper lower burrs country rock body analog material are made up of following component:
Consistent among ore body and upper lower burrs country rock body analog material preparation method and the embodiment 1 in the present embodiment.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material density are 2.84 g/cm
3, be suitable for simulating marble.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material single compressing stress strain curve are as shown in Figure 3, and its ultimate compression strength can reach 0.19 Mpa and 54.1Mpa with the bullet mould.
The tomography simulation material adopts PP SHEET FOR OPP TAPE, according to embodiment 1 in identical method prepare the tomography simulation material.In the present embodiment, the ratio of water and white glue with vinyl is 1:3, evenly smears 1 stroke with hairbrush in test block and PP SHEET FOR OPP TAPE surface, treats can make an experiment after white glue with vinyl is done.
Embodiment 4
Ore body in the present embodiment and upper lower burrs country rock body analog material are made up of following component:
Consistent among ore body and upper lower burrs country rock body analog material preparation method and the embodiment 1 in the present embodiment.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material density are 2.93 g/cm
3, be suitable for simulating diorite.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material single compressing stress strain curve are as shown in Figure 4.
The tomography simulation material adopts PP SHEET FOR OPP TAPE, according to embodiment 1 in identical method prepare the tomography simulation material.In the present embodiment, the ratio of water and white glue with vinyl is 1:3, evenly smears 3 strokes with hairbrush in test block and PP SHEET FOR OPP TAPE surface, treats can make an experiment after white glue with vinyl is done.
Embodiment 5
Ore body in the present embodiment and upper lower burrs country rock body analog material are made up of following component:
Consistent among ore body and upper lower burrs country rock body analog material preparation method and the embodiment 1 in the present embodiment.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material are suitable for simulating diorite.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material single compressing stress strain curve are as shown in Figure 5, and its ultimate compression strength can reach 0.85Mpa and 171Mpa with the bullet mould.
The tomography simulation material adopts PP SHEET FOR OPP TAPE, according to embodiment 1 in identical method prepare the tomography simulation material.In the present embodiment, the ratio of water and white glue with vinyl is 1:7, evenly smears 2 strokes with hairbrush in test block and PP SHEET FOR OPP TAPE surface, treats can make an experiment after white glue with vinyl is done.
Embodiment 6
Ore body in the present embodiment and upper lower burrs country rock body analog material are made up of following component:
Consistent among ore body and upper lower burrs country rock body analog material preparation method and the embodiment 1 in the present embodiment.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material density are 2.69 g/cm
3, be suitable for simulating diorite.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material single compressing stress strain curve are as shown in Figure 6, and its ultimate compression strength can reach 0.36Mpa and 67.2Mpa with the bullet mould.
The tomography simulation material adopts PP SHEET FOR OPP TAPE, according to embodiment 1 in identical method prepare the tomography simulation material.In the present embodiment, the ratio of water and white glue with vinyl is 1:7, evenly smears 1 stroke with hairbrush in test block and PP SHEET FOR OPP TAPE surface, treats can make an experiment after white glue with vinyl is done.
Embodiment 7
Ore body in the present embodiment and upper lower burrs country rock body analog material are made up of following component:
Consistent among ore body and upper lower burrs country rock body analog material preparation method and the embodiment 1 in the present embodiment.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material density are 3.76 g/cm
3, be suitable for simulating the iron ore body.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material single compressing stress strain curve are as shown in Figure 7.
Embodiment 8
Ore body in the present embodiment and upper lower burrs country rock body analog material are made up of following component:
Consistent among ore body and upper lower burrs country rock body analog material preparation method and the embodiment 1 in the present embodiment.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material are suitable for simulating the iron ore body.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material single compressing stress strain curve are as shown in Figure 8, and its ultimate compression strength can reach 1.07Mpa and 194.7Mpa with the bullet mould.
Embodiment 9
Ore body in the present embodiment and upper lower burrs country rock body analog material are made up of following component:
Consistent among ore body and upper lower burrs country rock body analog material preparation method and the embodiment 1 in the present embodiment.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material density are 3.55 g/cm
3, be suitable for simulating the iron ore body.Ore body that makes in the present embodiment and upper lower burrs country rock body analog material single compressing stress strain curve are as shown in Figure 9, and its ultimate compression strength can reach 0.31Mpa and 47.8Mpa with the bullet mould.
Claims (5)
1. transition from open-pit underground mining model trial ore deposit petrofacies are like material; It is characterized in that: comprise ore body and upper lower burrs country rock body analog material and tomography simulation material at least; Wherein ore body and upper lower burrs country rock body analog material are formed by main aggregate, jointing compound and additive mixing after fixing; Main aggregate comprises ground barium sulfate and silica sand, and a kind of among both of powdered iron ore, reduced iron powder, and jointing compound is unsaturated polyester and gypsum; Additive comprises G & W at least, and the mass percent of each component is in described ore body and the upper lower burrs country rock body analog material:
Described tomography simulation material is a PP SHEET FOR OPP TAPE, and the tomography simulation material is bonded on ore body and the upper lower burrs country rock body analog material.
2. transition from open-pit underground mining model trial according to claim 1 ore deposit petrofacies are like material, and it is characterized in that: described ore body and each component of upper lower burrs country rock body analog material and the mass percent of each component are:
3. transition from open-pit underground mining model trial according to claim 1 ore deposit petrofacies are like material, and it is characterized in that: described ore body and each component of upper lower burrs country rock body analog material and the mass percent of each component are:
4. transition from open-pit underground mining model trial according to claim 1 ore deposit petrofacies are like material, and it is characterized in that: described ore body and each component of upper lower burrs country rock body analog material and the mass percent of each component are:
5. transition from open-pit underground mining model trial according to claim 1 ore deposit petrofacies are like material, and it is characterized in that: described tomography simulation material is bonded on ore body and the upper lower burrs country rock body analog material through white glue with vinyl.
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| CN103043986A (en) * | 2013-01-25 | 2013-04-17 | 中国科学院武汉岩土力学研究所 | Rock soil similar material and preparation method thereof |
| CN103399139A (en) * | 2013-08-02 | 2013-11-20 | 中国地质大学（武汉） | Test method and test system used for model of transferring open pit mining into underground mining |
| CN104496387A (en) * | 2014-12-16 | 2015-04-08 | 中山大学 | Similar material based on softening characteristics of soft rocks after encountering water and preparation method for similar material |
| CN105759011A (en) * | 2016-02-25 | 2016-07-13 | 中国地质大学（武汉） | Testing material of slope blasting dynamic analysis model well as upper and lower plate surrounding rock mass similar material, fault zone similar material thereof and preparation method thereof |
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| CN103043986A (en) * | 2013-01-25 | 2013-04-17 | 中国科学院武汉岩土力学研究所 | Rock soil similar material and preparation method thereof |
| CN103399139A (en) * | 2013-08-02 | 2013-11-20 | 中国地质大学（武汉） | Test method and test system used for model of transferring open pit mining into underground mining |
| CN103399139B (en) * | 2013-08-02 | 2015-12-02 | 中国地质大学（武汉） | A kind of open air trestle production model test method and pilot system thereof |
| CN104496387A (en) * | 2014-12-16 | 2015-04-08 | 中山大学 | Similar material based on softening characteristics of soft rocks after encountering water and preparation method for similar material |
| CN105759011A (en) * | 2016-02-25 | 2016-07-13 | 中国地质大学（武汉） | Testing material of slope blasting dynamic analysis model well as upper and lower plate surrounding rock mass similar material, fault zone similar material thereof and preparation method thereof |
| CN106323658B (en) * | 2016-08-24 | 2018-07-27 | 鞍钢集团矿业有限公司 | A kind of simulation iron ore open air trestle exploitation induces the device and method of strata movement |
| CN106323658A (en) * | 2016-08-24 | 2017-01-11 | 鞍钢集团矿业有限公司 | Device and method of simulating iron ore open pit-into-underground mining induced strata movement |
| CN107098655A (en) * | 2017-06-05 | 2017-08-29 | 河南理工大学 | A kind of fluid structurecoupling analog material using polyurethane as cementing agent and preparation method thereof |
| CN107098655B (en) * | 2017-06-05 | 2019-08-16 | 河南理工大学 | It is a kind of using polyurethane as fluid structurecoupling analog material of cementing agent and preparation method thereof |
| CN109580912A (en) * | 2018-12-19 | 2019-04-05 | 中国地质大学（武汉） | A method of research explosion inertia force acts on lower tomography side slope Dynamic response characteristic |
| CN109704708A (en) * | 2019-01-16 | 2019-05-03 | 山东理工大学 | A kind of shear-zone analog material of solid&liquid couple simulated experiment and preparation method thereof |
| CN109704708B (en) * | 2019-01-16 | 2021-07-27 | 山东理工大学 | Fracture zone similar material for solid-fluid coupling simulation experiment and preparation method thereof |
| CN110041038A (en) * | 2019-04-29 | 2019-07-23 | 西南交通大学 | A kind of rock analog material and preparation method for high-speed shadowgraph technique simulation |
| CN110470593A (en) * | 2019-08-31 | 2019-11-19 | 四川大学 | For quickly measuring the experimental rig and method of structural plane model material friction coefficient |
| CN111018421A (en) * | 2019-12-23 | 2020-04-17 | 山东大学 | Ultra-low permeability airtight rock stratum similar material and preparation method and application thereof |
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