CN105865927A - Dual structured slop stability simulation test apparatus and method thereof - Google Patents
Dual structured slop stability simulation test apparatus and method thereof Download PDFInfo
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- CN105865927A CN105865927A CN201610179288.2A CN201610179288A CN105865927A CN 105865927 A CN105865927 A CN 105865927A CN 201610179288 A CN201610179288 A CN 201610179288A CN 105865927 A CN105865927 A CN 105865927A
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- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 238000004088 simulation Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000009977 dual effect Effects 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- 238000011068 loading method Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 35
- 229920005479 Lucite® Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 230000006378 damage Effects 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 238000003556 assay Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention relates to a dual structured slop stability simulation test apparatus and a method thereof. The apparatus comprises a model box, a pressure plate, a jack and a division plate, the model box is an unroofed structure, one side of the model box has no box wall, the pressure plate is positioned at the box wall-free side of the model box, the box wall of the model box, facing the pressure plate, is provided with a diagraph, and the pressure plate is provided with a pressure sensor; and the division plate is obliquely arranged in the model box, two side corners at the lower end of the division plate are respectively connected with the pressure plate and the box walls of the model box through bolts, the bottom plate of the model box extends to the outer side of the pressure plate, the bottom plate is provided with a vertical plate, and the jack is connected between the vertical plate and the pressure plate. The method comprises the following steps: determining the inclination angle, the slope angle and the lateral pressure value of an interface, adjusting the division plate according to the inclination angle of the interface, filling a lower layer slop material and embedding displacement sensors, adjusting the division plate according to the slope angle, filling an upper layer slop material and embedding a displacement sensor, removing the division plate, applying a pressure to the pressure plate until a pressure detected by the pressure sensor is same to the lateral pressure, loading a model step by step, observing the destroy condition of a slope, and recording slop sliding data.
Description
Technical field
The invention belongs to Geotechnical Engineering field, particularly relate to a kind of double-decked slope simulation test device for stability and side
Method.
Background technology
Double-decked slope is widely distributed, the most relatively common in engineering, and the stability of double-decked slope for engineering extremely
Close important.In order to study the stability of double-decked slope, those skilled in the art can build double-decked slope in laboratory
Model, and carry out model failure test.But, when existing double-decked slope model is carried out failure test, considered
External influence factors the most comprehensive, it have ignored the lateral pressure that in nature, double-decked slope may be subject to, and have ignored
The model failure test of lateral pressure, the test data drawn is incomplete, because the stability of double-decked slope is inevitable
Affected by lateral pressure.Therefore, it is necessary to lateral pressure is considered in model failure test, to improve diadactic structure limit
The reliability of slope stability research.
Summary of the invention
The problem existed for prior art, the present invention provides a kind of double-decked slope simulation test device for stability and method,
Effectively providing lateral pressure sophisticated model failure test, the test data drawn is more true comprehensively, and is effectively improved binary knot
The reliability of structure stability of slope Journal of Sex Research.
To achieve these goals, the present invention adopts the following technical scheme that a kind of double-decked slope simulation test device for stability,
Including model casing, pressing plate, jack and index plate, described model casing is rectangular box, and model casing uses without roof construction and
Side is positioned at the side without tank wall of model casing without tank wall, described pressing plate；Described index plate is inclined in model casing, index plate lower end
Side angle point is connected with pressing plate by bolt, index plate lower end opposite side angle point by bolt and pressing plate just to model casing tank wall
Being connected, the bolt of both sides, index plate lower end angle point is located on the same line；The base plate of described model casing extends to outside pressing plate,
Being provided with riser on model casing base plate outside pressing plate, described jack is connected between riser and pressing plate.
Being provided with two guide rails being parallel to each other on described model casing base plate, described pressing plate is guided by guide rail.
Described pressing plate just to model casing tank wall on be provided with diagraph, the bolt of both sides, described index plate lower end angle point is positioned at indexing
On the center of circle of chi.
Described pressing plate is provided with pressure transducer.
It is provided with reinforcement gusset at described model casing tank wall outer surface and riser lateral surface.
Described model casing uses lucite to make.
Described pressing plate and riser use steel plate to make.
The test method of the double-decked slope simulation test device for stability described in employing, comprises the steps:
Step one: before test, it is first determined the separating surface inclination angle of double-decked slope model and the numerical value of slope angle, and determine two
Meta structure side slope model needs the lateral pressure numerical value born；
Step 2: the bolt of both sides, index plate lower end angle point is adjusted to the state that loosens, inclines according to the separating surface determined in step one
The angle of inclination of index plate is adjusted by angle, and the angle of inclination of index plate is determined by diagraph, until inclining of index plate
Rake angle is equal to separating surface inclination angle, then screwing bolts, it is ensured that index plate cannot be rotated further；
Step 3: lower floor's side slope material is filled in the model casing below index plate, in lower floor's side slope material fill process,
Also need to bury underground displacement transducer below separating surface, finally by populated lower floor's side slope material compacting；
Step 4: again the bolt of both sides, index plate lower end angle point is adjusted to the state that loosens, according to the slope angle determined in step one
Being adjusted the angle of inclination of index plate, the angle of inclination of index plate is determined by diagraph, until the inclination of index plate
Angle is equal to slope angle, then screwing bolts, it is ensured that index plate cannot be rotated further；
Step 5: being filled in the space between index plate and separating surface by upper strata side slope material, side slope material was filled on upper strata
Cheng Zhong, needs to bury underground displacement transducer above separating surface, finally by populated upper strata side slope material compacting, now completes two
The preparation of meta structure side slope model；
Step 6: the bolt of both sides, index plate lower end angle point is unclamped and unloads, then index plate is removed from model casing；
Step 7: pressed by jack pair pressing plate, until the pressure that records of pressure transducer is equal to determining in step one
Lateral pressure, now jack stops pressure, makes lateral pressure maintain steady statue；
Step 8: use servo hydraulic machine to carry out multistage loadings above double-decked slope model, observe domatic destruction situation,
Land slide data under simultaneous displacement sensor record.
Beneficial effects of the present invention:
Lateral pressure compared with prior art, is considered in double-decked slope model failure test, by entirely by the present invention first
Newly-designed assay device effectively combines separating surface inclination angle, slope angle and three kinds of influence factors of lateral pressure so that model destroys examination
Testing more perfect, the test data drawn is more true comprehensively, and be also effectively increased double-decked slope stability study can
By property.
Accompanying drawing explanation
Fig. 1 is a kind of double-decked slope simulation test device for stability front view of the present invention；
Fig. 2 is a kind of double-decked slope simulation test device for stability top view of the present invention；
Fig. 3 is a kind of double-decked slope simulation test device for stability side view of the present invention；
Fig. 4 be the present invention model casing in schematic diagram when being filled with lower floor's side slope material；
Fig. 5 be the present invention model casing in schematic diagram when being filled with upper strata side slope material and lower floor's side slope material；
In figure, 1 model casing, 2 pressing plates, 3 jack, 4 index plates, 5 risers, 6 guide rails, 7 diagraphs,
8 pressure transducers, 9 displacement transducers, 10 bolts, 11 strengthen gusset, 12 lower floor's side slope materials, 13 upper stratas
Side slope material.
Detailed description of the invention
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, 3, a kind of double-decked slope simulation test device for stability, including model casing 1, pressing plate 2, thousand
Jin top 3 and index plate 4, described model casing 1 be rectangular box, model casing 1 employing without roof construction and side without tank wall, institute
State pressing plate 2 and be positioned at the side without tank wall of model casing 1；Described index plate 4 is inclined in model casing 1, index plate 4 lower end one
Side angle point is connected with pressing plate 2 by bolt 10, index plate 4 lower end opposite side angle point by bolt 10 and pressing plate 2 just to
Model casing 1 tank wall is connected, and the bolt 10 of both sides, index plate 4 lower end angle point is located on the same line；Described model casing 1
Base plate extends to outside pressing plate 2, and model casing 1 base plate outside pressing plate 2 is provided with riser 5, and described jack 3 connects
Between riser 5 and pressing plate 2.
Being provided with two guide rails being parallel to each other 6 on described model casing 1 base plate, described pressing plate 2 is guided by guide rail 6.
Described pressing plate 2 just to model casing 1 tank wall on be provided with diagraph 7, the bolt of both sides, described index plate 4 lower end angle point
It is positioned on the center of circle of diagraph 7.
Described pressing plate 2 is provided with pressure transducer 8.
It is provided with reinforcement gusset 11 at described model casing 1 tank wall outer surface and riser 5 lateral surface.
Described model casing 1 uses lucite to make.
Described pressing plate 2 and riser 5 use steel plate to make.
The test method of the double-decked slope simulation test device for stability described in employing, comprises the steps:
Step one: before test, it is first determined the separating surface inclination angle of double-decked slope model and the numerical value of slope angle, determines two simultaneously
Meta structure side slope model needs the lateral pressure numerical value born；
Step 2: the bolt 10 of both sides, index plate 4 lower end angle point is adjusted to the state that loosens, according to the boundary determined in step one
The angle of inclination of index plate 4 is adjusted by inclination angle, face, and the angle of inclination of index plate 4 is determined by diagraph 7, until
The angle of inclination of index plate 4 is equal to separating surface inclination angle, then screwing bolts 10, it is ensured that index plate 4 cannot be rotated further；
Step 3: be filled in the model casing 1 below index plate 4 by lower floor's side slope material 12, fills out at lower floor's side slope material 12
During filling, in addition it is also necessary to bury displacement transducer 9 below separating surface underground, finally populated lower floor's side slope material 12 is compacted,
The most as shown in Figure 4；
Step 4: again the bolt 10 of both sides, index plate 4 lower end angle point is adjusted to the state that loosens, according to determine in step one
The angle of inclination of index plate 4 is adjusted by slope angle, and the angle of inclination of index plate 4 is determined by diagraph 7, until point
The angle of inclination of degree plate 4 is equal to slope angle, then screwing bolts 10, it is ensured that index plate 4 cannot be rotated further；
Step 5: be filled in the space between index plate 4 and separating surface by upper strata side slope material 13, at upper strata side slope material
In 13 filling processs, need above separating surface, bury displacement transducer 9 underground, finally populated upper strata side slope material 13 be compacted,
Now complete the preparation of double-decked slope model, the most as shown in Figure 5；
Step 6: the bolt 10 of both sides, index plate 4 lower end angle point is unclamped and unloads, then index plate 4 is moved from model casing 1
Remove；
Step 7: pressed pressing plate 2 by jack 3, until the pressure that pressure transducer 8 records is equal in step one
The lateral pressure determined, now jack 3 stops pressure, makes lateral pressure maintain steady statue；
Step 8: use servo hydraulic machine to carry out multistage loadings above double-decked slope model, observe domatic destruction situation,
Land slide data recorded by simultaneous displacement sensor 9.
Lateral pressure is considered in double-decked slope model failure test by the present invention first, by the assay device of brand-new design
Effectively combine separating surface inclination angle, slope angle and three kinds of influence factors of lateral pressure so that model failure test is more perfect, gained
The test data gone out is more true comprehensively, is also effectively increased the reliability of double-decked slope stability study.
Scheme in embodiment is also not used to limit the scope of patent protection of the present invention, all equivalence enforcement done without departing from the present invention
Or change, it is both contained in the scope of the claims of this case.
Claims (8)
1. a double-decked slope simulation test device for stability, it is characterised in that: include model casing, pressing plate, jack and
Index plate, described model casing is rectangular box, and model casing uses without roof construction and side without tank wall, and described pressing plate is positioned at model
The side without tank wall of case；Described index plate is inclined in model casing, and side, index plate lower end angle point is connected with pressing plate by bolt
Connect, index plate lower end opposite side angle point by bolt and pressing plate just to model casing tank wall be connected, both sides, index plate lower end angle point
Bolt be located on the same line；The base plate of described model casing extends to outside pressing plate, on the model casing base plate outside pressing plate
Being provided with riser, described jack is connected between riser and pressing plate.
A kind of double-decked slope simulation test device for stability the most according to claim 1, it is characterised in that: described
Being provided with two guide rails being parallel to each other on model casing base plate, described pressing plate is guided by guide rail.
A kind of double-decked slope simulation test device for stability the most according to claim 1, it is characterised in that: described pressure
Plate just to model casing tank wall on be provided with diagraph, the bolt of both sides, described index plate lower end angle point is positioned on the center of circle of diagraph.
A kind of double-decked slope simulation test device for stability the most according to claim 1, it is characterised in that: described
Pressure transducer is installed on pressing plate.
A kind of double-decked slope simulation test device for stability the most according to claim 1, it is characterised in that: described
Model casing tank wall outer surface and riser lateral surface are provided with reinforcement gusset.
A kind of double-decked slope simulation test device for stability the most according to claim 1, it is characterised in that: described mould
Molding box uses lucite to make.
A kind of double-decked slope simulation test device for stability the most according to claim 1, it is characterised in that: described pressure
Plate and riser use steel plate to make.
8. the test method of employing double-decked slope simulation test device for stability described in claim 1, it is characterised in that bag
Include following steps:
Step one: before test, it is first determined the separating surface inclination angle of double-decked slope model and the numerical value of slope angle, and determine two
Meta structure side slope model needs the lateral pressure numerical value born；
Step 2: the bolt of both sides, index plate lower end angle point is adjusted to the state that loosens, inclines according to the separating surface determined in step one
The angle of inclination of index plate is adjusted by angle, and the angle of inclination of index plate is determined by diagraph, until inclining of index plate
Rake angle is equal to separating surface inclination angle, then screwing bolts, it is ensured that index plate cannot be rotated further；
Step 3: lower floor's side slope material is filled in the model casing below index plate, in lower floor's side slope material fill process,
Also need to bury underground displacement transducer below separating surface, finally by populated lower floor's side slope material compacting；
Step 4: again the bolt of both sides, index plate lower end angle point is adjusted to the state that loosens, according to the slope angle determined in step one
Being adjusted the angle of inclination of index plate, the angle of inclination of index plate is determined by diagraph, until the inclination of index plate
Angle is equal to slope angle, then screwing bolts, it is ensured that index plate cannot be rotated further；
Step 5: being filled in the space between index plate and separating surface by upper strata side slope material, side slope material was filled on upper strata
Cheng Zhong, needs to bury underground displacement transducer above separating surface, finally by populated upper strata side slope material compacting, now completes two
The preparation of meta structure side slope model；
Step 6: the bolt of both sides, index plate lower end angle point is unclamped and unloads, then index plate is taken out from model casing；
Step 7: pressed by jack pair pressing plate, until the pressure that records of pressure transducer is equal to determining in step one
Lateral pressure, now jack stops pressure, makes lateral pressure maintain steady statue；
Step 8: use servo hydraulic machine to carry out multistage loadings above double-decked slope model, observe domatic destruction situation,
Land slide data under simultaneous displacement sensor record.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610179288.2A CN105865927B (en) | 2016-03-25 | 2016-03-25 | A kind of double-decked slope simulation test device for stability and method |
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|---|---|---|---|
| CN201610179288.2A CN105865927B (en) | 2016-03-25 | 2016-03-25 | A kind of double-decked slope simulation test device for stability and method |
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| CN105865927B CN105865927B (en) | 2018-10-23 |
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Cited By (5)
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| CN106949875A (en) * | 2017-05-23 | 2017-07-14 | 中国电建集团成都勘测设计研究院有限公司 | Suitable for the physical analog test apparatus of slope deformation destruction |
| CN107063883A (en) * | 2017-03-14 | 2017-08-18 | 河海大学 | A kind of multifunctional combined experimental rig of soil mechanics and test method |
| CN108120817A (en) * | 2017-11-29 | 2018-06-05 | 中国神华能源股份有限公司 | The laying apparatus and application method of similarity simulation experiment material |
| CN112557178A (en) * | 2020-12-31 | 2021-03-26 | 中北大学 | Multifunctional two-dimensional similar reinforced soil structure model test device |
| CN113235673A (en) * | 2021-05-10 | 2021-08-10 | 重庆交通大学 | Landslide test device considering soil arch effect behind anti-slide pile and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108120817B (en) * | 2017-11-29 | 2020-06-02 | 中国神华能源股份有限公司 | Laying device for analog simulation experiment materials and using method |
| CN112557178A (en) * | 2020-12-31 | 2021-03-26 | 中北大学 | Multifunctional two-dimensional similar reinforced soil structure model test device |
| CN112557178B (en) * | 2020-12-31 | 2023-11-03 | 中北大学 | Multifunctional two-dimensional similar reinforced soil structure model test device |
| CN113235673A (en) * | 2021-05-10 | 2021-08-10 | 重庆交通大学 | Landslide test device considering soil arch effect behind anti-slide pile and using method thereof |
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| Publication number | Publication date |
|---|---|
| CN105865927B (en) | 2018-10-23 |
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