CN101377480A - Flexible loading system for stope mine pressing three-dimensional physical simulation test stand - Google Patents
Flexible loading system for stope mine pressing three-dimensional physical simulation test stand Download PDFInfo
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- CN101377480A CN101377480A CNA2008101572021A CN200810157202A CN101377480A CN 101377480 A CN101377480 A CN 101377480A CN A2008101572021 A CNA2008101572021 A CN A2008101572021A CN 200810157202 A CN200810157202 A CN 200810157202A CN 101377480 A CN101377480 A CN 101377480A
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- topping
- leather bag
- simulation test
- physical simulation
- test stand
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Abstract
The invention discloses a flexible loading system for an underground pressure three dimensional physical simulation test platform, which comprises a pressure supply device and a model; the invention is characterized in that a liquid-filled bark pocket is arranged between the pressure supply device and the model, as well as pressure provided by the pressure supply device acts on the surface of the model by the liquid-filled bark pocket. The invention mainly has the advantages: in the loading process, load is forced on the surface of the model by the lower part of the liquid-filled bark pocket to cause the model to be uniformly pressed, thereby, the negative influence on a whole experiment caused by rigid loading in the prior art can be overcome, and the test effect is beneficial to being enhanced. In addition, a corresponding flow meter is arranged on a pipeline of a liquid supply system to lay a foundation for surface subsidence estimation and prediction.
Description
Technical field
The present invention relates to stope mine pressing three-dimensional physical simulation test stand, particularly the loading system of stope mine pressing three-dimensional physical simulation test stand use.
Background technology
The load mode of laboratory stope mine pressing physical simulation test stand is nothing more than two kinds at present: a kind of is force-transmitting block and manual lifting jack; Another kind is force-transmitting block and hydraulic jack.These two kinds of load modes all belong to rigidity from macroeconomic significance and load, and can not simulate the actual conditions of rock stratum more objectively.Because the rock stratum is in the stratum under the certain depth, should consider to have identical load on each aspect of rock stratum from macroscopic view, in the laboratory,, the laying of model and force-transmitting block have inconsistency because putting, the load that applies can not act on the model surface comparatively equably, have the serious stress phenomenon on model level, this negative effect that whole experiment is brought is quite serious.
Summary of the invention
Task of the present invention is to overcome the above-mentioned technological deficiency that prior art exists, and a kind of flexible loading system that is used for stope mine pressing three-dimensional physical simulation test stand is provided, and the load that this flexible loading system applies can act on the model surface comparatively equably.
Its technical solution is:
A kind of flexible loading system that is used for stope mine pressing three-dimensional physical simulation test stand comprises pressure generator and model; Be provided with the topping up leather bag between pressure generator and model, the pressure that the pressure generator provides acts on the model surface by the topping up leather bag.
Above-mentioned pressure generator comprises hydraulic jack, cloth power plate and loading frame; Above-mentioned topping up leather bag is limited in the loading frame, and cloth power plate size is suitable with topping up leather bag size, and hydraulic jack is exerted pressure to the topping up leather bag by cloth power plate.
Above-mentioned topping up leather bag configuration liquid-supplying system.
Above-mentioned topping up leather bag is a plurality of, is arranged in order; All topping up leather bags are communicated with successively.
Above-mentioned liquid-supplying system is provided with feed flow pipeline and liquid back pipe road, and on feed flow pipeline or liquid back pipe road flowmeter is set at least.
Above-mentioned feed flow pipeline is connected the topping up leather bag on the first time, and the topping up leather bag on the last precedence is connected on the liquid back pipe road.
The useful technique effect that the present invention has mainly is: can load be applied on the model surface by topping up leather bag bottom in loading procedure, can make the model uniform-compression, can overcome in the prior art rigidity and load, help improving test effect the negative effect that whole experiment caused.In addition, the corresponding discharge meter is set on the liquid-supplying system pipeline, also estimates prediction and lay a good foundation for subsidence.
Description of drawings
Fig. 1 is one embodiment of the present invention structural principle synoptic diagram.
Fig. 2 mainly shows topping up leather bag part.
The present invention will be described below in conjunction with accompanying drawing:
Embodiment
In conjunction with Fig. 1 and Fig. 2, a kind of flexible loading system that is used for stope mine pressing three-dimensional physical simulation test stand comprises pressure generator and model; Be provided with the topping up leather bag between pressure generator and model, the pressure that the pressure generator provides acts on the model surface by the topping up leather bag.Emphatically the innovation in the invention is partly described below:
Above-mentioned topping up leather bag is a plurality of, is 3 in exemplifying, and promptly the topping up leather bag 1,2,3.Topping up leather bag 1,2,3 is arranged in order, and all topping up leather bags are communicated with successively.Topping up leather bag configuration liquid-supplying system 4, liquid-supplying system 4 is provided with feed flow pipeline 401 and liquid back pipe road 402, and on feed flow pipeline 401 or liquid back pipe road 402 flowmeter 5 is set, and also can on feed flow pipeline and liquid back pipe road flowmeter be set respectively; Feed flow pipeline 401 is connected the topping up leather bag 3 on the first time, and topping up leather bag 1 on the last precedence is connected on liquid back pipe road 402.Above-mentioned pressure generator also comprises cloth power plate 7 and loading frame 6 except that hydraulic jack is set; Above-mentioned topping up leather bag 1,2,3 is limited in the loading frame, cloth power plate can be fixed on the piston rod end of corresponding hydraulic jack, the corresponding topping up leather bag with each of size of cloth power plate 7 big or small suitable, hydraulic jack is exerted pressure to each topping up leather bag by cloth power plate.
Topping up leather bag in the above-mentioned embodiment also can be selected 1 for use, also can select 2,4 or more certainly for use.
Liquid-supplying system in the above-mentioned embodiment also can only be confessed liquid, need not back liquid.
Liquid-supplying system in the above-mentioned embodiment also can need not to dispose flowmeter.
Cloth power plate in the above-mentioned embodiment also can take not to be fixed on the technical approach of hydraulic jack piston rod end, such as the technical approach of taking directly to be placed on cloth power plate on the corresponding topping up leather bag before on-test, hydraulic jack is exerted pressure to cloth power plate.
Loading frame in the above-mentioned embodiment also can be substituted by testing table frame etc. fully.
The course of work of the present invention can roughly be:
According to certain similar proportioning, the situation of colliery superincumbent stratum is transformed into the similar model proportioning in laboratory, sand, lime carbonate, gypsum and water are pressed certain proportioning compaction in layers in laboratory stand (model table), the topping up leather bag is placed on the model, charge into liquid such as water body by liquid-supplying system to the topping up leather bag then, after waiting to reach suitable filling amount, the rock stratum that can not simulate is added on the hydraulic jack and to the topping up leather bag by certain conversion load exerts pressure, and by topping up leather bag bottom load is applied on the model surface, can simulate the excavation test in coal seam then.
Claims (7)
1, a kind of flexible loading system that is used for stope mine pressing three-dimensional physical simulation test stand comprises pressure generator and model; It is characterized in that: be provided with the topping up leather bag between pressure generator and model, the pressure that the pressure generator provides acts on the model surface by the topping up leather bag.
2, the flexible loading system that is used for stope mine pressing three-dimensional physical simulation test stand according to claim 1 is characterized in that: described pressure generator comprises hydraulic jack, cloth power plate and loading frame; Described topping up leather bag is limited in the loading frame, and cloth power plate size is suitable with topping up leather bag size, and hydraulic jack is exerted pressure to the topping up leather bag by cloth power plate.
3, the flexible loading system that is used for stope mine pressing three-dimensional physical simulation test stand according to claim 1 is characterized in that: described topping up leather bag configuration liquid-supplying system.
4, the flexible loading system that is used for stope mine pressing three-dimensional physical simulation test stand according to claim 2 is characterized in that: described topping up leather bag configuration liquid-supplying system.
5, according to claim 3 or the 4 described flexible loading systems that are used for stope mine pressing three-dimensional physical simulation test stand, it is characterized in that: described topping up leather bag is a plurality of, is arranged in order; All topping up leather bags are communicated with successively.
6, the flexible loading system that is used for stope mine pressing three-dimensional physical simulation test stand according to claim 5 is characterized in that: described liquid-supplying system is provided with feed flow pipeline and liquid back pipe road, and on feed flow pipeline or liquid back pipe road flowmeter is set at least.
7, the flexible loading system that is used for stope mine pressing three-dimensional physical simulation test stand according to claim 6 is characterized in that: described feed flow pipeline is connected the topping up leather bag on the first time, and the topping up leather bag on the last precedence is connected on the liquid back pipe road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101572021A CN101377480B (en) | 2008-09-25 | 2008-09-25 | Flexible loading system for stope mine pressing three-dimensional physical simulation test stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101572021A CN101377480B (en) | 2008-09-25 | 2008-09-25 | Flexible loading system for stope mine pressing three-dimensional physical simulation test stand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101377480A true CN101377480A (en) | 2009-03-04 |
| CN101377480B CN101377480B (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101572021A Expired - Fee Related CN101377480B (en) | 2008-09-25 | 2008-09-25 | Flexible loading system for stope mine pressing three-dimensional physical simulation test stand |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454385A (en) * | 2013-09-18 | 2013-12-18 | 山东科技大学 | Coal and gas outburst simulation experiment device during roadway exposure |
| CN105093962A (en) * | 2015-07-22 | 2015-11-25 | 山东科技大学 | Bidirectional flexible loading system simulating three-dimensional coal mining testing stand and method thereof |
| CN105241757A (en) * | 2015-09-18 | 2016-01-13 | 中国科学院武汉岩土力学研究所 | Uniform load mechanism, three dimensional slope model test load apparatus and three dimensional slope model test load method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2771844Y (en) * | 2004-12-09 | 2006-04-12 | 上海隧道工程股份有限公司 | Analogue test-bed bag-loading system |
| CN201037835Y (en) * | 2007-04-20 | 2008-03-19 | 中国矿业大学 | Water pressure loading device for surficial terrane equally loaded conversion |
-
2008
- 2008-09-25 CN CN2008101572021A patent/CN101377480B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454385A (en) * | 2013-09-18 | 2013-12-18 | 山东科技大学 | Coal and gas outburst simulation experiment device during roadway exposure |
| CN105093962A (en) * | 2015-07-22 | 2015-11-25 | 山东科技大学 | Bidirectional flexible loading system simulating three-dimensional coal mining testing stand and method thereof |
| CN105241757A (en) * | 2015-09-18 | 2016-01-13 | 中国科学院武汉岩土力学研究所 | Uniform load mechanism, three dimensional slope model test load apparatus and three dimensional slope model test load method |
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| Publication number | Publication date |
|---|---|
| CN101377480B (en) | 2012-01-04 |
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