CN105759011A - 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 - Google Patents
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 Download PDFInfo
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- CN105759011A CN105759011A CN201610105673.2A CN201610105673A CN105759011A CN 105759011 A CN105759011 A CN 105759011A CN 201610105673 A CN201610105673 A CN 201610105673A CN 105759011 A CN105759011 A CN 105759011A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention belongs to the technical field of an open pit to underground mining engineering analysis model and particularly relates to a testing material of an open pit to underground mining slope blasting dynamic analysis model as an upper and lower plate surrounding rock mass similar material, a fault zone similar material thereof and a preparation method thereof. The upper and lower plate surrounding rock mass similar material comprises coarse-grain quartz sand, middle-grain quartz sand, iron concentrate, gypsum, sodium citrate and water. The fault zone similar material comprises the coarse-grain quartz sand, the middle-grain quartz sand, fine-grain quartz sand, barite powder and the water. The formula of the rock mass similar material provided by the invention utilizes the iron ore powder and barite powder which have relatively great gravity and the quartz sand and gypsum which have relatively small density, so that the gravity distribution range of the similar material is relatively large; the content of each component in each similar material is adjusted so that a self-gravity stress field of rock masses at different depths can be effectively simulated.
Description
Technical field
The invention belongs to open air trestle exploitation engineering analytical model technology field, be specifically related to a kind of open air trestle exploitation slope blasting Dynamic Analysis Model test material, its upper lower burrs encloses Similar Material of Rockmass, its shear-zone analog material and preparation method thereof.
Background technology
Along with mankind's exploitation to earth mineral reserve, more and more many high steep mine slope engineering backgrounds will appear from, and mining type also will be developed from earth's surface and earth's surface superficial part toward deep.For this kind of high gradient slope, high gradient slope especially with shear-zone, under underground mining blasting vibration effect, slope stability will reduce, it is embodied in: the physical and mechanical parameter deterioration under repeatedly blasting vibration effect of the shear-zone defect side slope, and the inertia unstability under accidental onepull effect of vibration.Probe into this Geological Engineering and Geotechnical Engineering stability problem, for ensureing that when similar engineering Human dried bloodstains carries out safely, there is important economic and social profit.And physical experiments is to solve that this class problem is the most original, the most direct means.
Choosing of physical model analog material, is most important basic link in test, decides the precision of bulk testing or even success or failure.Rock And Soil analog material should meet the requirement that the parameters such as severe, intensity, deformation modulus be low are similar to the Rock And Soil of prototype, but find on all four modeling material very difficult, generally according to the problem crux needing research, choose key parameter similar, meet similarity criterion.
For shear-zone defect high gradient slope physical experiments under underground mining blasting vibration effect, study less both at home and abroad at present, and existing modeling material has following deficiency: modeling material intensity is excessive, it is impossible to meet the model likelihood ratio requirement that reduced scale is bigger；The rock soil mass types of modeling is comparatively single, and ordinary circumstance only studies the character of Similar Material of Rockmass, and relates to very few to the research of wherein shear-zone analog material；Modeling material processing technology is more complicated, the sample preparation cycle is long, and material cost is high, source inconvenience, and composition material has poisonous substance etc..
Summary of the invention
For solving the deficiencies in the prior art, the invention provides a kind of open air trestle exploitation slope blasting Dynamic Analysis Model test material, its upper lower burrs encloses Similar Material of Rockmass, its shear-zone analog material and preparation method thereof, each material manufacturing process is simple, become the sample cycle short and less costly.
The upper lower burrs of a kind of open air trestle exploitation slope blasting Dynamic Analysis Model test material encloses Similar Material of Rockmass, including primary solids component and additive.Described primary solids component includes main aggregate and cementing agent.Described main aggregate includes coarse quartz grain sand, middle grain quartz sand and Iron concentrate, and described cementing agent is Gypsum Fibrosum, and described additive includes sodium citrate and water.
Wherein, in described primary solids component, the weight/mass percentage composition of each component is respectively as follows: Gypsum Fibrosum 18.5%～24.5%, coarse quartz grain sand 22.5%～40.5%, middle grain quartz sand 0.0%～10.5%, Iron concentrate 38.5%～44.5%, the mass percent of sodium citrate and described cementing agent is 0.10～0.20%, and the mass percent of water and described primary solids component is 16.0～16.5%.
Concrete, the described acid-washed quartz sand that coarse quartz grain sand is 40 orders, the described acid-washed quartz sand that middle grain quartz sand is 80 order moduluses.
Concrete, the particle diameter of described Iron concentrate is less than or equal to 0.3mm.
Present invention also offers the shear-zone analog material of a kind of open air trestle exploitation slope blasting Dynamic Analysis Model test material, including primary solids component and additive, described primary solids component includes main aggregate and cementing agent, described main aggregate includes coarse quartz grain sand, middle grain quartz sand and bird's eye gravel sand, described cementing agent is blanc fixe, and described additive is water.
Wherein, in described primary solids component, the weight/mass percentage composition of each component is respectively as follows: blanc fixe 65.5%～76.5%, coarse quartz grain sand 19.5%～22.5%, middle grain quartz sand 1.5%～5.5%, the mass percent of bird's eye gravel sand 0.0%～3.5%, water and described primary solids component is 13～15%.
Concrete, the described acid-washed quartz sand that coarse quartz grain sand is 40 orders, the described acid-washed quartz sand that middle grain quartz sand is 80 order moduluses, the described acid-washed quartz sand that bird's eye gravel sand is 280 orders.
Concrete, the particle diameter of described blanc fixe is less than or equal to 300 orders, and the content of the described barium sulfate in blanc fixe is be more than or equal to 92%.
Present invention also offers a kind of open air trestle exploitation slope blasting Dynamic Analysis Model test material, it includes upper lower burrs and encloses Similar Material of Rockmass and shear-zone analog material, wherein:
It is that above-mentioned upper lower burrs provided by the present invention encloses Similar Material of Rockmass or existing upper lower burrs encloses Similar Material of Rockmass that upper lower burrs encloses Similar Material of Rockmass；
Shear-zone analog material is above-mentioned shear-zone analog material provided by the present invention or existing shear-zone analog material.
Preferably, open air trestle exploitation slope blasting Dynamic Analysis Model test material includes above-mentioned upper lower burrs provided by the present invention and encloses Similar Material of Rockmass and above-mentioned shear-zone analog material provided by the present invention.
The preparation method that present invention also offers above-mentioned open air trestle exploitation slope blasting Dynamic Analysis Model test material, comprise the following steps: mix each component with formula ratio respectively and obtain the upper lower burrs of mortar shape and enclose Similar Material of Rockmass and shear-zone analog material, enclose Similar Material of Rockmass with the upper lower burrs of mortar shape again for cementing agent, the shear-zone analog material made to be bonded in upper lower burrs and enclose between Similar Material of Rockmass, obtain open air trestle exploitation slope blasting Dynamic Analysis Model test material.
Beneficial effect
1, the modeling material of the present invention has stable in properties, processing technology is simple, curing cycle is short, material source is extensive and the advantage such as inexpensive non-poisonous material effect, has higher practicality.
2, the Similar Material of Rockmass formula of the present invention employs the bigger Iron Ore Powder of severe, blanc fixe, and the less quartz sand of density and Gypsum Fibrosum, thus the severe distribution of analog material is bigger, by adjusting the content of each composition in each analog material, it is possible to the effectively self-weight stress field of simulation different depth place rock mass.
3, the modeling material physical and mechanical parameter of the present invention is little and parameter variation range is relatively wide, and therefore this material can meet the general requirement of model test material, and is applicable to the requirement of similarity of variety classes material of rock and soil.
4, the strata model material test block after molding is prone to cutting and bonding, therefore can be spliced into the test block mold of difformity size.
The present invention is with the high steep defect side slope actual (side slope containing potential slide construction plane of weakness or fault belt) in open air trestle exploitation engineering for relying on, develop Rock And Soil analog material, development is the basis of the high steep defect Slope Blasting Vibration physical model test of open air trestle blasting excavation, (include disclosing defect slope blasting dynamic action mechanism, the accumulation of defect side slope physical and mechanical parameter weakens and side slope entirety inertia unstability, two aspects) there is important research supporting role.
Accompanying drawing explanation
The upper lower burrs that Fig. 1 is obtained in example 1 encloses the single compressing stress strain curve figure of Similar Material of Rockmass.
The upper lower burrs that Fig. 2 is obtained in example 2 encloses the single compressing stress strain curve figure of Similar Material of Rockmass.
The upper lower burrs that Fig. 3 is obtained in example 3 encloses the single compressing stress strain curve figure of Similar Material of Rockmass.
Fig. 4 is the shear displacemant curve chart of shear-zone analog material obtained in example 4.
Fig. 5 is the shear displacemant curve chart of shear-zone analog material obtained in example 5.
Fig. 6 is the shear displacemant curve chart of shear-zone analog material obtained in example 6.
Detailed description of the invention
Hereinafter principles of the invention and feature being described, illustrated embodiment is served only for explaining the present invention, is not intended to limit the scope of the present invention.
Embodiment 1
The upper lower burrs of the present embodiment is enclosed Similar Material of Rockmass and is made up of following components:
The present embodiment upper lower burrs Rock Mass analog material preparation method is as follows: 1, by said ratio weigh solid constituent and in cement plaster blender abundant dry mixing uniform；2, according to institute's water requirement and sodium citrate consumption, sodium citrate solution has been configured；3, the solution configured is poured in the solid mixture remittance mixed thoroughly, and be sufficiently stirred for；4, the compound mixed and stirred is poured into closely knit molding of shaking in copper-made mould；5, form removal after sample solidification forming is about 1h, and put into baking oven, dry about 24h at 75 DEG C, further take out about 24h in holding chamber.
The upper lower burrs Rock Mass analog material density prepared in the present embodiment is 2.24g/cm3, its comprcssive strength and bullet mould respectively 1.06MPa and 160.83MPa, Poisson's ratio is 0.30, is suitable in the shear-zone defect reality high gradient slope in simulation open air trestle exploitation engineering upper and lower Rock Mass.The upper lower burrs Rock Mass analog material single compressing stress strain curve prepared in the present embodiment is as shown in Figure 1.
Embodiment 2
The upper lower burrs of the present embodiment is enclosed Similar Material of Rockmass and is made up of following components:
In the present embodiment, to enclose Similar Material of Rockmass preparation method consistent with embodiment 1 for upper lower burrs.The upper lower burrs Rock Mass analog material density prepared in the present embodiment is 2.23g/cm3, its comprcssive strength and bullet mould respectively 1.20MPa and 174.51MPa, Poisson's ratio is 0.31, is suitable in the shear-zone defect reality high gradient slope in simulation open air trestle exploitation engineering upper and lower Rock Mass.The upper lower burrs Rock Mass analog material single compressing stress strain curve prepared in the present embodiment is as shown in Figure 2.
Embodiment 3
The upper lower burrs of the present embodiment is enclosed Similar Material of Rockmass and is made up of following components:
In the present embodiment, to enclose Similar Material of Rockmass preparation method consistent with embodiment 1 for upper lower burrs.The upper lower burrs Rock Mass analog material density prepared in the present embodiment is 2.29g/cm3, its comprcssive strength and bullet mould respectively 1.09MPa and 238.83MPa, Poisson's ratio is 0.32, is suitable in the shear-zone defect reality high gradient slope in simulation open air trestle exploitation engineering upper and lower Rock Mass.The upper lower burrs Rock Mass analog material single compressing stress strain curve prepared in the present embodiment is as shown in Figure 3.
From embodiment 1,2,3 and accompanying drawing 1,2,3 it can be seen that such material may be advantageously employed in the edge slope structure of simulation open air trestle exploitation.
Embodiment 4
The shear-zone analog material of the present embodiment is made up of following components:
The shear-zone analog material preparation method of the present embodiment is as follows: 1, by said ratio weigh solid constituent and in cement plaster blender abundant dry mixing uniform；2, load weighted water is poured in the solid mixture remittance mixed thoroughly, and be sufficiently stirred for；3, the mixture mixed is loaded sealing in plastic bag and preserve diel；4, the compound in step 3 is poured densification molding in steel die into, and seal one day with preservative film together with mould.
The shear-zone analog material density prepared in the present embodiment is 1.76g/cm3, its shear index respectively 0.832kPa and 19.19 °, is suitable for the shear-zone in the shear-zone defect reality high gradient slope in simulation open air trestle exploitation engineering.The shear-zone analog material shear stress curve prepared in the present embodiment is as shown in Figure 4.
Embodiment 5
The shear-zone analog material of the present embodiment is made up of following components:
The present embodiment interrupting layer band analog material preparation method is consistent with embodiment 4.The shear-zone analog material density prepared in the present embodiment is 1.76g/cm3, its shear index respectively 1.723kPa and 24.34 °, it is suitable for the shear-zone in the shear-zone defect reality high gradient slope in simulation open air trestle exploitation engineering.The shear-zone analog material shear stress curve prepared in the present embodiment is as shown in Figure 5.
Embodiment 6
The shear-zone analog material of the present embodiment is made up of following components:
The present embodiment interrupting layer band analog material preparation method is consistent with embodiment 4.The shear-zone analog material density prepared in the present embodiment is 1.76g/cm3, its shear index respectively 2.064kPa and 21.85 °, it is suitable for the shear-zone in the shear-zone defect reality high gradient slope in simulation open air trestle exploitation engineering.The shear-zone analog material shear stress curve prepared in the present embodiment is as shown in Figure 5
From embodiment 4,5,6 and accompanying drawing 4,5,6 it can be seen that such material may be advantageously employed in the edge slope structure of simulation open air trestle exploitation.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (8)
- null1. the upper lower burrs of an open air trestle exploitation slope blasting Dynamic Analysis Model test material encloses Similar Material of Rockmass，It is characterized in that，Including primary solids component and additive，Described primary solids component includes main aggregate and cementing agent，Described main aggregate includes coarse quartz grain sand、Middle grain quartz sand and Iron concentrate，Described cementing agent is Gypsum Fibrosum，Described additive includes sodium citrate and water，Wherein，In described primary solids component, the weight/mass percentage composition of each component is respectively as follows: Gypsum Fibrosum 18.5%～24.5%，Coarse quartz grain sand 22.5%～40.5%，Middle grain quartz sand 0.0%～10.5%，Iron concentrate 38.5%～44.5%，The mass percent of sodium citrate and described cementing agent is 0.10～0.20%，The mass percent of water and described primary solids component is 16.0～16.5%.
- 2. the upper lower burrs of open air trestle according to claim 1 exploitation slope blasting Dynamic Analysis Model test material encloses Similar Material of Rockmass, it is characterized in that: the described acid-washed quartz sand that coarse quartz grain sand is 40 orders, the described acid-washed quartz sand that middle grain quartz sand is 80 order moduluses.
- 3. the upper lower burrs of open air trestle according to claim 1 and 2 exploitation slope blasting Dynamic Analysis Model test material encloses Similar Material of Rockmass, it is characterised in that: the particle diameter of described Iron concentrate is less than or equal to 0.3mm.
- 4. the shear-zone analog material of an open air trestle exploitation slope blasting Dynamic Analysis Model test material, it is characterized in that, including primary solids component and additive, described primary solids component includes main aggregate and cementing agent, described main aggregate includes coarse quartz grain sand, middle grain quartz sand and bird's eye gravel sand, described cementing agent is blanc fixe, described additive is water, wherein, in described primary solids component, the weight/mass percentage composition of each component is respectively as follows: blanc fixe 65.5%～76.5%, coarse quartz grain sand 19.5%～22.5%, middle grain quartz sand 1.5%～5.5%, bird's eye gravel sand 0.0%～3.5%, the mass percent of water and described primary solids component is 13～15%.
- 5. the shear-zone analog material of open air trestle according to claim 4 exploitation slope blasting Dynamic Analysis Model test material, it is characterized in that: the described acid-washed quartz sand that coarse quartz grain sand is 40 orders, the described acid-washed quartz sand that middle grain quartz sand is 80 order moduluses, the described acid-washed quartz sand that bird's eye gravel sand is 280 orders.
- 6. the shear-zone analog material of the open air trestle exploitation slope blasting Dynamic Analysis Model test material according to claim 4 or 5, it is characterized in that: the particle diameter of described blanc fixe is less than or equal to 300 orders, and the content of the described barium sulfate in blanc fixe is be more than or equal to 92%.
- 7. an open air trestle exploitation slope blasting Dynamic Analysis Model test material, it is characterised in that including: enclose Similar Material of Rockmass and/or according to the arbitrary described shear-zone analog material of claim 4 to 6 according to the arbitrary described upper lower burrs of claims 1 to 3.
- 8. the preparation method of an open air trestle according to claim 7 exploitation slope blasting Dynamic Analysis Model test material, it is characterized in that, comprise the following steps: mix each component with formula ratio respectively and obtain the upper lower burrs of mortar shape and enclose Similar Material of Rockmass and shear-zone analog material, enclose Similar Material of Rockmass with the upper lower burrs of mortar shape again for cementing agent, the shear-zone analog material made to be bonded in upper lower burrs and enclose between Similar Material of Rockmass, obtain open air trestle exploitation slope blasting Dynamic Analysis Model test material.
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| CN201610105673.2A CN105759011B (en) | 2016-02-25 | 2016-02-25 | Slope blasting Dynamic Analysis Model test material, its upper lower burrs country rock body analog material, its shear-zone analog material and preparation method |
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| CN201610105673.2A CN105759011B (en) | 2016-02-25 | 2016-02-25 | Slope blasting Dynamic Analysis Model test material, its upper lower burrs country rock body analog material, its shear-zone analog material and preparation method |
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| CN105759011B CN105759011B (en) | 2018-01-05 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106018038A (en) * | 2016-07-13 | 2016-10-12 | 中国地质大学（武汉） | Method and device for manufacturing landslide physical model |
| CN108680408A (en) * | 2018-04-28 | 2018-10-19 | 中国地质大学（武汉） | The stake rock analog material and preparation method of the soft coal roadway of Bearing capacity model experiment |
| CN109142671A (en) * | 2018-07-17 | 2019-01-04 | 中国地质大学（武汉） | The method for studying water weak structural face intensity gradual change deterioration rule of satisfying under blasting vibration |
| 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 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018038A (en) * | 2016-07-13 | 2016-10-12 | 中国地质大学（武汉） | Method and device for manufacturing landslide physical model |
| CN108680408A (en) * | 2018-04-28 | 2018-10-19 | 中国地质大学（武汉） | The stake rock analog material and preparation method of the soft coal roadway of Bearing capacity model experiment |
| CN108680408B (en) * | 2018-04-28 | 2019-12-10 | 中国地质大学（武汉） | Pile-rock similar material of soft rock socketed pile for bearing capacity model test and preparation method |
| CN109142671A (en) * | 2018-07-17 | 2019-01-04 | 中国地质大学（武汉） | The method for studying water weak structural face intensity gradual change deterioration rule of satisfying under blasting vibration |
| CN109142671B (en) * | 2018-07-17 | 2021-04-30 | 中国地质大学（武汉） | Method for researching gradual change degradation rule of strength of water-saturated weak structural plane under blasting vibration |
| 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 |
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