CN208818715U - Friction pile soil arching effect evolution mechanism visible model testing device - Google Patents
Friction pile soil arching effect evolution mechanism visible model testing device Download PDFInfo
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- CN208818715U CN208818715U CN201821327079.9U CN201821327079U CN208818715U CN 208818715 U CN208818715 U CN 208818715U CN 201821327079 U CN201821327079 U CN 201821327079U CN 208818715 U CN208818715 U CN 208818715U
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Abstract
The utility model relates to a kind of friction pile soil arching effect evolution mechanism visible model testing device, including Visualization Model case, loading device, normal sand, two side baffles, stripper plate, load plate, instead of the steel plate of stake, cushion block and the digital camera being set to outside Visualization Model case；Visualization Model case is the cabinet of top and bottom end opening；Two side baffles include two pieces be arranged symmetrically by vertical long wing plate and horizontal short limb board group at inverted T shaped baffle, two vertical long wing plates and Visualization Model chamber interior wall constitute appearance sand space；Two horizontal short limb plates support stripper plate, can more convenient, the intuitively deformation of stake surrounding soil and the rule of development by the visible model testing research soil body under outer load action by the utility model.
Description
Technical field
The utility model belongs to geotechnical engineering and Geological Engineering technical field, is related to a kind of model test apparatus, specifically relates to
And a kind of friction pile soil arching effect evolution mechanism visible model testing device.
Background technique
Soil arching effect is most important reinforcement mechanism of the friction pile for geotechnical engineering problems such as slope reinforcements.Soil arching effect
Sphere of action be directly related to soil arch power transmission feature and friction pile supporting success or failure.It is tested and is demonstrate,proved by dodge gate from Tai Shaji
After bright soil arching effect exists, domestic and foreign scholars have done soil arching effect by field test or numerical simulation software and have largely ground
Study carefully, has obtained the conclusion of formation and the evolution of many soil arches.But the Visualization Model about soil arching effect evolutionary process at present
Test lacks further investigation, more lacks different factors to friction pile soil arching effect soil around pile particle evolution of motion affecting laws and right
The deformation failure affecting laws experimental study achievement of soil body shearing strain concentration band.
In conclusion at present there is also many unknown in the research of soil arching effect evolution mechanism, and the utility model mentions
A kind of soil arching effect evolution mechanism visible model testing device and test method have been supplied, can more convenient, intuitively have been passed through
Visible model testing studies friction pile soil arching effect soil around pile particle evolution of motion rule and soil arching effect is formed, develops and broken
The Distortion Disciplinarian of band is concentrated in bad evolutionary process and soil body shearing strain, and studying different factors, (stake is wide, stake spacing, sand
Compactness) under the influence of soil arching effect Evolution.
Utility model content
Existing for not visibleization present in soil arching effect evolution physical test to solve the problems, such as, the utility model mentions
For a kind of friction pile soil arching effect evolution visible model testing device.
To realize the above-mentioned technical purpose, the utility model can be achieved through the following technical solutions: friction pile soil arch effect
Answer evolution mechanism visible model testing device, including Visualization Model case, loading device, normal sand, two side baffles, de- material
Plate, load plate, instead of the steel plate of stake, cushion block and the digital camera being set to outside Visualization Model case；The visualization mould
Molding box is the cabinet of top and bottom end opening；Two side baffles include two pieces be arranged symmetrically by vertical long wing plate and level
Short limb board group at inverted T shaped baffle, two vertical long wing plates are respectively positioned in Visualization Model case and two width edges of vertical long wing plate
It is bonded with Visualization Model chamber interior wall so that Visualization Model chamber interior wall and two vertical long wing plates are collectively formed for accommodating mark
The appearance sand space of quasi- sand；Two horizontal short limb plates are located at Visualization Model bottom end and are located on cushion block, in two horizontal short limb plates
The top at end is bolted the steel plate instead of stake, instead of two length sides and Visualization Model chamber interior wall of the steel plate of stake
Fitting；Two horizontal short limb board bottom portions are bolted the horizontal rotation plate for carrying stripper plate jointly, the de- material
Plate is located between the inner end of two horizontal short limb plates and is located at the bottom for holding sand space；Load is provided at the top of the normal sand
Plate；The loading device includes the jack for exerting a force to load plate being set to above Visualization Model case.
Digital camera is set to the face view of Visualization Model case, for shooting the clear of Visualization Model case case side normal sand
Clear image.
The Visualization Model case is the top constituted and bottom end opening by four pieces of transparent organic glass splicings
Rectangular parallelepiped structure, can directly observe tank test phenomenon from all angles, and the junction of organic glass carried out with marine glue it is close
Envelope.
The normal sand uses Nanping Prefecture normal sand.The normal sand quality is stable and can be used for sand in Visualization
The deformation measurement of soil particle.
Every piece of horizontal short limb board bottom portion is respectively and fixedly provided with two blocks of horizontal rotation plates, and four blocks of horizontal rotation plates support de- jointly
Flitch.
The loading device includes substructure, superstructure and jack, and the substructure includes quadrangle
Bottom surface and be set to the steel pipe straight up of bottom surface quadrangle, the cushion block is set to the upper surface of bottom surface；Superstructure packet
It includes the top surface of quadrangle and is set to the steel pipe straight down of top surface quadrangle；The corresponding insertion of steel pipe straight down is straight up
Steel pipe in and be fixed with pin, the jack is inverted in the lower surface of top surface.
According to the method that above-mentioned friction pile soil arching effect evolution mechanism visible model testing device is tested, including
Following steps:
Step 1: preparing test material and equipment
Prepare Visualization Model case, two side baffles, loading device, normal sand, cushion block, stripper plate, instead of stake steel plate, plus
Support plate and digital camera；
Step 2: assembling soil arching effect evolution mechanism visible model testing device
Two pieces of cushion blocks are placed on the bottom surface of loading device substructure, place two side baffles on every piece of cushion block respectively, are adjusted
The distance between whole two side baffle, Visualization Model housing-case is made on the outside of two vertical long wing plates Visualization Model chamber interior wall with
Two vertical long wing plates collectively form the appearance sand space for accommodating normal sand, the swivel plate of two sides baffle bottom are rotated, by de- material
Plate is placed on swivel plate；
Step 3: building soil arching effect evolution mechanism analysis model
Normal sand is poured into and is held in sand space, until banketing in Visualization Model case reaches design height, the soil body is flattened, adds
Support plate is placed on after leveling on the soil body, and the superstructure of loading device is fixed in substructure；
Step 4: starting to test
By applying jack, load is acted on the soil body by load plate, rotating base swivel plate keeps stripper plate de-
It falls, sets up digital camera in the face view of Visualization Model case, adjust position and the parameter of camera, make its focal plane and visualization
Model casing frontoparallel and clearly normal sand image can be taken, load is until soil body fall damage in Visualization Model case；
Step 5: two side baffle spacing of adjustment, the width of steel plate instead of stake, sand compactness parameter, repeat above-mentioned step
Rapid three, step 4, to realize the soil arching effect EVOLUTION ANALYSIS under multifactor impact；
Step 6: test result analysis
After test load, image captured by digital camera during test is divided by image processing software
Analysis, obtains displacement field and the shearing strain field of the soil around pile under different loads.
The utility model provides a kind of friction pile soil arching effect evolution mechanism visible model testing device, can be more
Conveniently, stake surrounding soil of the soil body under outer load action is intuitively studied by visible model testing and deforms and develop rule
Rule.
Detailed description of the invention
Fig. 1 is the main view of the utility model；
Fig. 2 is the main view of loading device；
Fig. 3 is two side baffle main views；
Fig. 4 is the top view of left side baffle in Fig. 3；
1,1b, two side baffle, 1a, inverted T shaped baffle rotate horizontally plate, 1c, bolt
2, loading device, 2a, substructure, 2b, superstructure, 2c, jack,
3, load plate, 4, cushion block, 5, stripper plate, 6, normal sand, 7, Visualization Model case,
8, instead of the steel plate of stake.
Specific embodiment
As shown in Figures 1 to 4, friction pile soil arching effect evolution mechanism visible model testing device, including visualization mould
Molding box 7, loading device 2, normal sand 6, two side baffles 1, stripper plate 5, load plate 3, instead of the steel plate 8 of stake, cushion block 4 and setting
Digital camera outside Visualization Model case 7；The Visualization Model case 7 is structure by four pieces of transparent organic glass splicings
At top and bottom end opening rectangular parallelepiped structure, and the junction of organic glass is sealed with marine glue.The standard
Sand 6 uses Nanping Prefecture normal sand.
The loading device 2 includes substructure 2a, superstructure 2b and jack 2c, the substructure 2a packet
It includes the bottom surface of quadrangle and is set to the steel pipe straight up of bottom surface quadrangle, the cushion block 4 is set to bottom surface upper surface；Top
Structure 2b includes the top surface of quadrangle and the steel pipe straight down for being set to top surface quadrangle；The corresponding insertion of steel pipe straight down
It is fixed in steel pipe straight up and with pin, the lower surface that the jack 2c is inverted in top surface is used for load plate 3
Force.
Two side baffles 1 include two pieces be arranged symmetrically by vertical long wing plate and horizontal short limb board group at it is inverted T shaped
Baffle 1a, two vertical long wing plates be respectively positioned in Visualization Model case 7 and two width edges of vertical long wing plate and Visualization Model
7 inner wall of case is bonded so that 7 inner wall of Visualization Model case and two vertical long wing plates collectively form the appearance sand sky for accommodating normal sand 6
Between；Two horizontal short limb plates are located at 7 bottom end of Visualization Model case and are located on cushion block 4, and the top of two horizontal short limb plate inner ends is equal
It is fixed with the steel plate 8 instead of stake by bolt 1c, is bonded instead of two length sides of the steel plate 8 of stake with 7 inner wall of Visualization Model case；
Every piece of horizontal short limb board bottom portion passes through bolt 1c and is fixed with two pieces of horizontal rotation plate 1b for carrying stripper plate 5, four blocks of water
Flat swivel plate 1b supports stripper plate 5 jointly.Stripper plate 5 is located between the inner end of two horizontal short limb plates and is located at the bottom for holding sand space
Portion；The load plate 3 is set to the top of normal sand 6.
Claims (5)
1. friction pile soil arching effect evolution mechanism visible model testing device, it is characterised in that: including Visualization Model case
(7), loading device (2), normal sand (6), two side baffles (1), stripper plate (5), load plate (3), the steel plate (8) instead of stake, pad
Block (4) and it is set to the digital camera of Visualization Model case (7) outside；The Visualization Model case (7) is top and bottom end
The cabinet of opening；Two side baffles (1) include two pieces be arranged symmetrically by vertical long wing plate and horizontal short limb board group at
Inverted T shaped baffle (1a), two vertical long wing plates be respectively positioned in Visualization Model case (7) and two width edges of vertical long wing plate with can
It is bonded depending on changing model casing (7) inner wall so that Visualization Model case (7) inner wall and two vertical long wing plates are collectively formed for accommodating mark
The appearance sand space of quasi- sand (6)；Two horizontal short limb plates are located at Visualization Model case (7) bottom end and are located on cushion block (4), and two is horizontal
The top of short limb plate inner end passes through bolt (1c) and is fixed with steel plate (8) instead of stake, instead of two length sides of the steel plate (8) of stake
It is bonded with Visualization Model case (7) inner wall；Two horizontal short limb board bottom portions pass through bolt (1c) be fixed with it is de- for carrying jointly
The horizontal rotation plate (1b) of flitch (5), the stripper plate (5), which is located between the inner end of two horizontal short limb plates and is located at, holds sand space
Bottom；Load plate (3) are provided at the top of the normal sand (6)；The loading device (2) includes being set to visualization mould
The jack (2c) for exerting a force to load plate (3) above molding box (7).
2. friction pile soil arching effect evolution mechanism visible model testing device according to claim 1, it is characterised in that:
The Visualization Model case (7) is the cuboid on the top and bottom end opening being spliced by four pieces of transparent organic glass and constituted
Structure, and the junction of organic glass is sealed with marine glue.
3. friction pile soil arching effect evolution mechanism visible model testing device according to claim 1, it is characterised in that:
The normal sand (6) uses Nanping Prefecture normal sand.
4. friction pile soil arching effect evolution mechanism visible model testing device according to claim 1, it is characterised in that:
Every piece of horizontal short limb board bottom portion is respectively and fixedly provided with two pieces of horizontal rotation plates (1b), and support is de- jointly for four pieces of horizontal rotation plates (1b)
Flitch (5).
5. friction pile soil arching effect evolution mechanism visible model testing device according to claim 1, it is characterised in that:
The loading device (2) includes substructure (2a), superstructure (2b) and jack (2c), the substructure (2a)
Bottom surface including quadrangle and the steel pipe straight up for being set to bottom surface quadrangle, the cushion block (4) are set to bottom surface upper surface；
Superstructure (2b) includes the top surface of quadrangle and the steel pipe straight down for being set to top surface quadrangle；Steel pipe pair straight down
It should be inserted into steel pipe straight up and be fixed with pin, the jack (2c) is inverted in the lower surface of top surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821327079.9U CN208818715U (en) | 2018-08-17 | 2018-08-17 | Friction pile soil arching effect evolution mechanism visible model testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821327079.9U CN208818715U (en) | 2018-08-17 | 2018-08-17 | Friction pile soil arching effect evolution mechanism visible model testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208818715U true CN208818715U (en) | 2019-05-03 |
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ID=66273675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821327079.9U Active CN208818715U (en) | 2018-08-17 | 2018-08-17 | Friction pile soil arching effect evolution mechanism visible model testing device |
Country Status (1)
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| CN (1) | CN208818715U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030781A (en) * | 2018-08-17 | 2018-12-18 | 山东建筑大学 | Friction pile soil arching effect evolution mechanism visible model testing device and test method |
| CN115343448A (en) * | 2022-10-18 | 2022-11-15 | 湖南大学 | Novel movable door model test device and method based on soil arch effect research |
-
2018
- 2018-08-17 CN CN201821327079.9U patent/CN208818715U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030781A (en) * | 2018-08-17 | 2018-12-18 | 山东建筑大学 | Friction pile soil arching effect evolution mechanism visible model testing device and test method |
| CN115343448A (en) * | 2022-10-18 | 2022-11-15 | 湖南大学 | Novel movable door model test device and method based on soil arch effect research |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200916 Address after: Fengming Road District of Ji'nan City, Shandong province 250000 port development Co-patentee after: Shandong high speed Group Co.,Ltd. Patentee after: Shandong University of Architecture Address before: Fengming Road District of Ji'nan City, Shandong province 250101 port development Co-patentee before: QILU TRANSPORTATION DEVELOPMENT GROUP Co.,Ltd. Patentee before: Shandong University of Architecture Co-patentee before: CONSTRUCTION MANAGEMENT BRANCH OF QILU TRANSPORTATION DEVELOPMENT GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |