CN108444783A - A kind of the model test filling device and method of sliding board-type Large Underground test platform - Google Patents
A kind of the model test filling device and method of sliding board-type Large Underground test platform Download PDFInfo
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- CN108444783A CN108444783A CN201810197389.1A CN201810197389A CN108444783A CN 108444783 A CN108444783 A CN 108444783A CN 201810197389 A CN201810197389 A CN 201810197389A CN 108444783 A CN108444783 A CN 108444783A
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000002474 experimental method Methods 0.000 claims abstract description 55
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 230000035939 shock Effects 0.000 claims abstract description 13
- 239000002689 soil Substances 0.000 claims description 36
- 230000000694 effects Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 4
- 238000005056 compaction Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000011160 research Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Abstract
The invention discloses a kind of model test filling device of sliding board-type Large Underground test platform and method, belongs to model test and banket field.The device includes platform balance, small handcart, half space, slide device, vertical steel plate, hinge, bolt, vertical baffle, model casing, vertical supporting bar, steel tank and protecting against shock sleeve.Wherein, slide device is made of the outlet of funnel-form slide, stem slide, middle part slide, tail portion slide and replaceable curvature.It can be rotated freely by movable hinge connection, vertical steel plate between the main part of funnel-form slide and vertical steel plate.Vertical baffle is supported on a side box wall of model casing, and vertical baffle plays a part of preventing slide device from gliding.The present invention can be assembled quickly, and after experiment is banketed, dismounting is simple, and it is fast to fill speed, time saving and energy saving.According to the real space position relationship at the top of test platform and model casing, it can be segmented and set up linear type slide or shaped form slide, there is prodigious flexibility.
Description
Technical field
It bankets field the invention belongs to model test, especially a kind of model test of sliding board-type Large Underground test platform
Filling device and method.
Background technology
In recent years, being gradually improved with superstructure research, more and more scientific research institutions are gradual by the center of gravity of research
It is transferred to geotechnical engineering field.The research method of geotechnical engineering problems has theoretical research, model test and numerical simulation etc..
Model test is widely used in the geotechnical engineerings such as tunnel, foundation pit field, to find out its cause, model test is more straight
It sees, can qualitatively or quantitatively reflect natural rock mass mechanical characteristic related with underground engineering, associated system's underground engineering structure
Influence each other, can be mutually authenticated with mathematical model；Physical analogy can than more fully, true simulation intricately descend engineering
Structure, complex stratum condition etc..In addition, model test can explore it is many current still masty with mathematics, mechanics method
Problem provides foundation to establish new theory and mathematical model.As underground engineering scale is increasing, the problem is more next
It is more complicated, need the content studied more and more, then, the requirement to the scientific research and design level of underground engineering is also higher and higher.
Carry out model test to underground engineering under complex geological condition to simulate, is the direction of current geotechnical engineering problems research, tool
There is actual engineering significance.
The shortcomings that model test, is that the size of model equipment is much smaller than the size of engineering structure and stratum.Therefore, model
Experiment cannot meet all likelihoods ratio, and there are dimensional effects.Current solution, one is to carry out centrifuge test；Separately
One is the size for increasing model equipment.The size of model test is bigger, and as a result closer to Practical Project, dimensional effect is got over
It is small.To reduce dimensional effect as much as possible, formation condition and structure in Practical Project, many scientific researches are accurately simulated as far as possible
Mechanism takes the method for increasing model box size.
However, model test need in face of a most basic problem to be banketed in model casing.For example, Beijing industries are big
Underground all-around test stand is learned, maximum can do the model test of 6m × 6m × 10m.How quickly and safely to give so big
Model casing banket, be a problem.
Big in view of the scale of Large Underground test platform, there is an urgent need to propose a kind of dress that Large Underground test platform bankets
It sets and method.
Invention content
The purpose of the present invention be exactly be to propose it is a kind of it is easy to operate, banket efficient experimental rig, for large-scale ground
Lower test platform bankets.
The technical problems to be solved by the invention be just to provide a kind of device to banket for Large Underground test platform and
Method can be provided convenient for Underground Test platform, and the present apparatus is easy for installation, easy to operate, be Study of The Underground structure or rock
Soil experiment provides reliable test platform and bankets scheme.
Technical solution of the invention is：
A kind of model test filling device of sliding board-type Large Underground test platform, the device include platform balance (1), small handcart
(2), half space (3), slide device, vertical steel plate (12), hinge (13), bolt (14), vertical baffle (15), model casing
(16), vertical supporting bar (17), steel tank (18) and protecting against shock sleeve (19).
Platform balance (1) is used to weigh the quality for being put into that experiment is banketed in small handcart (2) every time.
Small handcart (2) is hand-held flat car, is equipped with vertical supporting at the hand handle of small handcart (2), vertical supporting is placed on ground
On small handcart (2) can be kept to balance, push away experiment is native toward on the half space (3) of test platform when experiment, then repeatedly
Transport test soil.
Half space (3) is hollow steel plate box of the front without steel plate, bottom plate and the ground anchor solid of hollow steel plate box
At an entirety, for parking small handcart (2) and fixed slide device, slide device is diagonally arranged.
Slide device is by funnel-form slide (4), stem slide (5), middle part slide (6), tail portion slide (7) and replaceable song
Rate exports (8) composition.Funnel-form slide (4), stem slide (5), middle part slide (6), tail portion slide (7) and replaceable curvature go out
Mouth (8) is sequentially connected with；Funnel-form slide (4), stem slide (5), middle part slide (6), tail portion slide (7) and replaceable curvature go out
It is equipped with overhanging floor (9) at the head and the tail of mouth (8), passes through floor (9) and is connected with each other.
The inside of stem slide (5), middle part slide (6) and tail portion slide (7) is by support plate (10) and round steel loop
(11) it forms, round steel loop (11) is used for the transport of the soil body, and the outside of round steel loop (11) is equipped with support plate (10), support plate
(10) it is used to prevent round steel loop (11) movement and deformation.Slide device is corresponding with the position of model casing (16).
It is connect by movable hinge (13) between the main part of funnel-form slide (4) and vertical steel plate (12), vertical steel
Plate (12) can rotate freely.Vertical steel plate (12) is connected with the vertical panel of half space (3) with bolt (14), ensures funnel
Shape slide (4) and half space (3) form a fixed entirety.
A vertical baffle (15) is arranged below in tail portion slide (7), and vertical baffle (15) is supported on the side of model casing (16)
On tank wall, vertical baffle (15) plays a part of preventing slide device from gliding.
Replaceable curvature outlet (8) plays a part of converting the native direction of motion of experiment in slide.According to the native need of experiment
The bottom position to be slid selects the replaceable curvature of different length and different curvature outlet (8), replaceable curvature is exported
(8) it is connect with tail portion slide (7).
The bottom of slide device is equipped with vertical supporting bar (17), and there are one steel tanks for the connection of vertical supporting bar (17) upper end
(18), vertical supporting bar (17) plays a part of supporting slide device, the inclination at the inclination angle of slide device and steel tank (18)
Angle is identical.
Protecting against shock sleeve (19) is made of tough and tensile flexible material, and protecting against shock sleeve (19) binding is exported in replaceable curved surface
(8) bottom, under the effect of gravity straight down, the experiment in slide device are reduced with soil after protecting against shock sleeve (19)
Impact velocity.
Round steel loop (11) inner surface in slide device posts smooth coiled material, bankets and circular steel for reducing experiment
Friction between ring (11).
Utilize the filling method for the model test filling device that above-mentioned sliding board-type Large Underground test platform carries out, this method
Include the following steps：
S1 calculates the quality that every layer of expected height bankets according to the control density banketed in test model case (16).
S2 is packed into after weighing a certain amount of experiment soil by several times with platform balance (1) in small handcart (2) in the native laydown area of experiment,
Record the quality of the experiment soil in small handcart (2).
Small handcart is pushed on the half space (3) of test platform by S3, with spade or artificial lifted vehicle and is poured into experiment with soil
In the choana of slideway, experiment soil is slid by slideway in model casing (16).
Small handcart (2) is pushed back the native laydown area of experiment by S4, and the experiment after weighing is again loaded into small handcart (2) with soil
In, until the experiment soil property amount of this layer reaches calculated value.
S5 worker enters through staircase in model casing, harrowed with flat sand experiment is taken off with soil it is flat, it is then artificial according to testing program
Compacting is tamped with machinery.
S6 carries out compaction in layers to experiment with soil, and same position rams certain number, and one, which rams pressure half, rams, and rams and is connected, row
Row is connected.It is rammed first pass, is flattened again, is then tamped next time.
S7 repeats step S1-S6, completes native to next layer of experiment to fill and tamp.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present invention making experimental rig simple, at low cost and scheme using a kind of, can quickly assemble, be applied to
Large Underground test platform model test filling device.Meanwhile after experiment is banketed, dismounting is simple.
(2) present invention utilizes the gravitional force to banket, without it is traditional experiment soil lifted the heavy work such as be put into
It measures, it is fast to fill speed, time saving and energy saving.
(3) present invention, which focuses on to banket for Large Underground test platform, provides a thinking, according to test platform and model casing
The real space position relationship at top can be segmented and set up linear type slide or shaped form slide, have prodigious flexibility.
Description of the drawings
A kind of schematic diagrames of the model test filling device of sliding board-type Large Underground test platform of Fig. 1.
A kind of model test filling device partial schematic diagram a of sliding board-type Large Underground test platforms of Fig. 2.
A kind of model test filling device partial schematic diagram b of sliding board-type Large Underground test platforms of Fig. 3.
A kind of model test filling device partial schematic diagram c of sliding board-type Large Underground test platforms of Fig. 4.
Fig. 5 slide device plan views.
Fig. 6 slide device cross-sectional views.
In figure：1. platform balance, 2. small handcarts, 3. half spaces, 4. funnel-form slides, 5. stem slides, 6. middle part slides, 7.
Tail portion slide, 8. replaceable curvature outlets, 9. floors, 10. support plates, 11. round steel loops, 12. vertical steel plates, 13. hinges,
14. bolt, 15. vertical baffles, 16. model casings, 17. vertical supporting bars, 18. steel tanks, 19. protecting against shock sleeves.
Specific implementation mode
Below in conjunction with the accompanying drawings and embodiment invention is further explained, but should not be limited with this present invention guarantor
Protect range.
Referring initially to Fig. 1-6, the model test filling device of sliding board-type Large Underground test platform of the present invention constitutes packet
It includes：Platform balance (1), small handcart (2), half space (3) and slide device, replaceable curvature export (8), vertical supporting bar (17),
Protecting against shock sleeve (19).
Platform balance (1) is put into the quality tested and banketed in small handcart every time for weighing.Small handcart (2), will experiment when experiment
It is pushed away toward on the half space of test platform with soil, then transport test is native repeatedly.Half space (3) is a front without steel
The hollow steel plate box of plate, bottom plate are anchored with ground, form an entirety, for parking small handcart (2) and fixing the entire of lower part
Slide device.
Slide device is core of the invention component, by funnel-form slide (4), stem slide (5), middle part slide (6), tail
Portion's slide (7) forms and replaceable curvature outlet (8) composition.Each group at there is overhanging floor (9) at the head and the tail of component part,
Each section is connected with each other by the bolt between floor (9).Wherein, stem slide (5), middle part slide (6) and tail portion slide
(7), it is made of support plate (10) and round steel loop (11) inside, round steel loop (11) is used for the transport of the soil body, support plate
(10) it is used to prevent the deformation of the movement of round steel loop (11).The funnel-form slide (4), main part and vertical steel plate
(12) it is connect by movable hinge (13) between, vertical steel plate (12) can rotate freely.Vertical steel plate (12) and rest are flat
The vertical panel of platform (3) is connected with bolt (14), ensures that funnel-form slide (4) and half space (3) formation one are fixed whole
Body.The tail portion slide (7) has a vertical baffle (15), is supported on a side box wall of model casing (16), plays anti-below
The effect that on-slip ladder device glides.The replaceable curvature outlet (8) plays the native direction of motion of experiment in conversion slide
Effect.The bottom position slid is needed according to experiment soil, the replaceable curvature of different length and different curvature can be selected to go out
Mouth (8), it is connect with tail portion slide (7).
Vertical supporting bar (17), the upper end connect a steel tank (18), play a part of supporting skid rail, the inclination of slideway
Angle is identical with the inclination angle of steel tank (18).Protecting against shock sleeve (19), tough and tensile flexible material, binding are exported in replaceable curved surface
(8) bottom, under the effect of gravity straight down, after protecting against shock sleeve (19), speed reduces experiment soil in slide.
The inner surface of round steel loop (11) in above-mentioned slide device posts smooth coiled material, bankets for reducing experiment
Friction between steel loop.
It is as follows using model test material as the operating procedure of the embodiment of sand below：
(1) according to the control density banketed in model casing (16), the quality that every layer of expected height bankets is calculated.In sand heap
By native area, sand quality is weighed by several times with platform balance (1), is then charged into small handcart (2), calculates and record the examination of this small handcart
Test the gross mass with soil.
(2) small handcart is pushed on the half space (3) of test platform, with spade or artificial lift vehicle and pour into experiment with soil
In the choana of slideway, experiment soil is slid by slideway in model casing (16).
(3) small handcart (2) is pushed back into the native laydown area of experiment, the experiment after weighing is again loaded into small handcart (2) with soil
In, until the experiment soil property amount of this layer reaches calculated value.
(4) worker enters through staircase in model casing, harrowed with flat sand experiment is taken off with soil it is flat, it is then artificial according to testing program
Compacting is tamped with machinery.Compaction in layers is carried out with soil to experiment, same position rams certain number, and one, which rams pressure half, rams, and rams
It is connected, every trade is connected.It is rammed first pass, is flattened again, is then tamped next time.
(5) step (1)-(4) are repeated, filling and tamp to next layer of sand is completed.
The component part of invention and embodiment are illustrated above, but the present invention is not limited thereto, it can be with
It is suitably changed without departing from the gist of the present invention.
Claims (3)
1. a kind of model test filling device of sliding board-type Large Underground test platform, it is characterised in that：The device includes platform balance
(1), small handcart (2), half space (3), slide device, vertical steel plate (12), hinge (13), bolt (14), vertical baffle
(15), model casing (16), vertical supporting bar (17), steel tank (18) and protecting against shock sleeve (19)：
Platform balance (1) is used to weigh the quality for being put into that experiment is banketed in small handcart (2) every time；
Small handcart (2) is hand-held flat car, is equipped with vertical supporting at the hand handle of small handcart (2), vertical supporting is put on the ground energy
Enough small handcart (2) is kept to balance, pushes away experiment is native toward on the half space (3) of test platform when experiment, then transport repeatedly
Experiment soil；
Half space (3) is hollow steel plate box of the front without steel plate, and the bottom plate and ground anchor solid of hollow steel plate box are at one
A entirety, for parking small handcart (2) and fixed slide device, slide device is diagonally arranged；
Slide device is gone out by funnel-form slide (4), stem slide (5), middle part slide (6), tail portion slide (7) and replaceable curvature
Mouth (8) composition；Funnel-form slide (4), stem slide (5), middle part slide (6), tail portion slide (7) and the outlet of replaceable curvature
(8) it is sequentially connected with；Funnel-form slide (4), stem slide (5), middle part slide (6), tail portion slide (7) and the outlet of replaceable curvature
(8) it is equipped with overhanging floor (9) at head and the tail, is connected with each other by floor (9)；
The inside of stem slide (5), middle part slide (6) and tail portion slide (7) is by support plate (10) and round steel loop (11) group
At round steel loop (11) is used for the transport of the soil body, and the outside of round steel loop (11) is equipped with support plate (10), and support plate (10) is used for
Prevent round steel loop (11) movement and deformation；Slide device is corresponding with the position of model casing (16)；
It is connect by movable hinge (13) between the main part of funnel-form slide (4) and vertical steel plate (12), vertical steel plate
(12) it can rotate freely；Vertical steel plate (12) is connected with the vertical panel of half space (3) with bolt (14), ensures funnel-form
Slide (4) and half space (3) form a fixed entirety；
A vertical baffle (15) is arranged below in tail portion slide (7), and vertical baffle (15) is supported on a side box wall of model casing (16)
On, vertical baffle (15) plays a part of preventing slide device from gliding；
Replaceable curvature outlet (8) plays a part of converting the native direction of motion of experiment in slide；It needs to slide with soil according to experiment
The bottom position fallen selects the replaceable curvature outlet (8) of different length and different curvature, by replaceable curvature outlet (8) with
Tail portion slide (7) connects；
The bottom of slide device is equipped with vertical supporting bar (17), steel tank (18) that there are one the connections of vertical supporting bar (17) upper end,
Vertical supporting bar (17) plays a part of supporting slide device, the inclination angle phase at the inclination angle of slide device and steel tank (18)
Together；
Protecting against shock sleeve (19) is made of tough and tensile flexible material, and protecting against shock sleeve (19) binding exports (8) in replaceable curved surface
Bottom, under the effect of gravity straight down, experiment in slide device is reduced with soil after protecting against shock sleeve (19)
Impact velocity.
2. a kind of model test filling device of sliding board-type Large Underground test platform according to claim 1, feature
It is：Round steel loop (11) inner surface in slide device posts smooth coiled material, bankets and round steel loop for reducing experiment
(11) friction between.
3. utilizing the filling method for the model test filling device that filling device described in claim 1 carries out, it is characterised in that：It should
Method includes the following steps,
S1 calculates the quality that every layer of expected height bankets according to the control density banketed in test model case (16)；
S2 is packed into after weighing a certain amount of experiment soil by several times with platform balance (1) in small handcart (2), record in the native laydown area of experiment
The gross mass of the experiment soil of small handcart (2)；
Small handcart is pushed on the half space (3) of test platform by S3, with spade or artificial lift vehicle experiment is poured into slideway with soil
Choana in, experiment soil passes through slideway and slides into model casing (16)；
Small handcart (2) is pushed back the native laydown area of experiment by S4, the experiment after weighing is again loaded into soil in small handcart (2), directly
Experiment soil property amount to this layer reaches calculated value；
S5 worker enters through staircase in model casing, is harrowed with flat sand and takes off with soil experiment flat, then selected according to testing program artificial
Compacting or machinery compacting；
S6 carries out compaction in layers to experiment with soil, and same position rams certain number, and one, which rams pressure half, rams, and rams and is connected, every trade phase
Even；It is rammed first pass, is flattened again, is then tamped next time；
S7 repeats step S1-S6, completes native to next layer of experiment to fill and tamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810197389.1A CN108444783B (en) | 2018-03-11 | 2018-03-11 | Model test soil filling device and method for slide type large underground test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810197389.1A CN108444783B (en) | 2018-03-11 | 2018-03-11 | Model test soil filling device and method for slide type large underground test platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108444783A true CN108444783A (en) | 2018-08-24 |
| CN108444783B CN108444783B (en) | 2020-08-28 |
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|---|---|---|---|
| CN201810197389.1A Expired - Fee Related CN108444783B (en) | 2018-03-11 | 2018-03-11 | Model test soil filling device and method for slide type large underground test platform |
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| CN105136577A (en) * | 2015-09-22 | 2015-12-09 | 河南科技大学 | Assembled multifunctional testing device |
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|---|---|---|---|---|
| CN201473846U (en) * | 2009-08-18 | 2010-05-19 | 冯守中 | Anti-scouring structure for silt fill subgrade side slope |
| CN202273214U (en) * | 2011-09-29 | 2012-06-13 | 广东省长大公路工程有限公司 | Temporary draining device of subgrade filling side slope |
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| Publication number | Publication date |
|---|---|
| CN108444783B (en) | 2020-08-28 |
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