CN108269479A - A kind of simulator of shallow foundation foundation failure - Google Patents
A kind of simulator of shallow foundation foundation failure Download PDFInfo
- Publication number
- CN108269479A CN108269479A CN201810141644.0A CN201810141644A CN108269479A CN 108269479 A CN108269479 A CN 108269479A CN 201810141644 A CN201810141644 A CN 201810141644A CN 108269479 A CN108269479 A CN 108269479A
- Authority
- CN
- China
- Prior art keywords
- foundation
- strut
- lever
- loading
- glass case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/40—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for geology
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geology (AREA)
- Mathematical Optimization (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Algebra (AREA)
- Computational Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Mathematical Analysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Instructional Devices (AREA)
Abstract
The invention discloses a kind of simulators of shallow foundation foundation failure, belong to geotechnical engineering related field, rectangular glass case and loading system, layering is equipped with natural earth and transparent soil in the rectangular glass case, natural soil layer and transparent soil layer are alternately arranged, and form foundation model；Loading system includes loading blocks, load bar, the first strut, the second strut, lever, fixed pulley and counterweight, and the loading blocks are located on foundation model.The gravity of counterweight is acted in the form of at double in loading blocks under the amplification of lever, realizes the loading to foundation model.The device can be used for the classroom instruction of soil mechanics, and student can be made to be visually observed that the process of shallow foundation foundation failure, enriched the content of education, and improve teaching efficiency.
Description
Technical field
The present invention relates to a kind of simulators of shallow foundation foundation failure, belong to geotechnical engineering related field.
Background technology
An extremely important course of the soil mechanics as geotechnical engineering profession, in order to which student is made preferably to grasp the course
Knowledge point, teacher other than being explained according to the theory on textbook, should also enrich the content of education, change during giving lessons
Kind teaching method, makes student quickly get started, and more intuitively recognizes the fundamental property of the soil body, foundation bearing capacity and ground
It destroys as knowledge point important in soil mechanics, how to show that foundation failure becomes to student to visual pattern needs what is solved to ask
Topic.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of simulator of shallow foundation foundation failure, can intuitively may be used
Depending on the process of the simulation shallow foundation foundation failure of change.
The purpose of the present invention is what is be achieved through the following technical solutions：A kind of simulator of shallow foundation foundation failure, packet
Rectangular glass case and loading system are included, upper lower leaf is equipped with natural earth and transparent soil, natural soil layer in the rectangular glass case
It is alternately arranged with transparent soil layer, forms foundation model；Loading system include loading blocks, load bar, the first strut, the second strut,
Lever, fixed pulley and counterweight, the loading blocks are located on foundation model, and load bar lower end is connected with loading blocks, before and after loading blocks
Both ends of the surface are contacted with organic glass case front-rear side walls；First strut, the second strut are fixed vertically, and fixed pulley is mounted on second
Bar upper end, one end of lever are connected by a connecting rope with counterweight, and the connecting rope is around on the fixed pulley, lever it is another
End is hinged with load bar upper end；The fulcrum of lever is hinged with the first strut upper end.
Further, the loading blocks are the shallow foundation model with step structure.
Further, the lever is marked with scale.
Further, the rectangular glass case antetheca has vertical scale.
Further, every layer height of natural soil layer and transparent soil layer is 3mm.
Compared with prior art, the beneficial effects of the invention are as follows：
1. the present invention intuitively can visually realize the classroom displaying of shallow foundation foundation failure.
2. the present invention can be with ground foundation simulation according to the different of property native in the difference and foundation model of added load
A variety of failure modes, such as local shear failure, overall shear failure and punching failure by shear.
3. the device simple structure, easy to operate.
4. student can be made to more fully understand the correlated knowledge point for grasping foundation failure for classroom instruction in the device.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the schematic diagram of loading blocks；
In figure, load bar 1, the first strut 2, loading blocks 3, rectangular glass case 4, the second strut 5, lever 7, fixed pulley 6, weight
Code 8.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of simulator of shallow foundation foundation failure, described including rectangular glass case 4 and loading system
Rectangular glass case 4 in layering equipped with natural earth and transparent soil, natural soil layer and transparent soil layer are alternately arranged, and form ground basic mode
Type；Loading system includes loading blocks 3, load bar 1, the first strut 2, the second strut 5, lever 7, fixed pulley 6 and counterweight 8, described
Loading blocks 3 are located on foundation model, to simulate one-dimensional loading.1 lower end of load bar is connected with loading blocks 3,3 rear and front end of loading blocks
Face is contacted with 4 front-rear side walls of organic glass case；First strut 2, the second strut 5 are vertical fixed, and fixed pulley 6 is mounted on second
5 upper end of bar, one end of lever 7 are connected by a connecting rope with counterweight 8, and the connecting rope is around on the fixed pulley 6, lever 7
The other end be hinged with 1 upper end of load bar；The fulcrum of lever 7 is hinged with 2 upper end of the first strut.By the amplification of lever,
The gravity of counterweight to act on foundation model at double.
It is existing research shows that, with amorphous silica powder synthesize transparent soil, Geotechnical Engineering Properties are similar to clay, with without calmly
Shape silica gel or the transparent soil of vitreous silica synthesis, Geotechnical Engineering Properties are similar to sand.According to different foundation models for
The requirement of soil nature can prepare transparent soil by different methods.Prepared transparent soil is put with natural earth layering
It is placed in plexiglass cylinder (being 3mm per layer height).
In addition, as common technical means in the art, the loading blocks 3 are the shallow foundation model with step structure.
The lever 7 is marked with scale, available for calculating the active force acted in loading blocks 3；4 antetheca of rectangular glass case has
Vertical scale, available for observing sinking distance.
When being not added with load, the interface of natural earth and transparent soil is horizontal line, and in the process of loading, the soil body is first
First occur compressive deformation, the horizontal line below basic model in certain area coverage is gradually curved as curve, and horizontal line becomes
The depth bounds of curve are the coverage of the additional stress in ground, by comparing basic model bottom surface certain area coverage
The bending degree of inner curve and bending degree apart from the basic model remotely interface of the soil body can be seen that basic model
The coverage of the compression degree of the subjacent certain area soil body and each depth horizontal direction.When load continues to increase
Local plastic zone is formed when big, in the soil body, local shearing slip face is at this moment formd in foundation model and (part has occurred to cut
Cut through bad), when certain dislocation occurs in itself for the curve of these interfaces, the place for illustrating to misplace forms shearing slip
Face, the curve number to misplace is more, illustrates that the range of plastic zone is bigger, shearing slip face is longer.When load continues to increase
When, continuous shearing slip face is formd, that is, overall shear failure has occurred, earth's surface is swelled.If the soil body in foundation model
When the fluffing of moulding sand larger for compressibility or weak soil, punching failure by shear can be simulated.It can make student in the process of classroom instruction
It is intuitive to see shallow foundation foundation failure process and failure mode, it is further seen that additional stress influence depth range is slided
The forming position in face and surface uplift amount, are conducive to enrich the content of education, and improve teaching efficiency.
Claims (5)
1. a kind of simulator of shallow foundation foundation failure, which is characterized in that including rectangular glass case (4) and loading system.Institute
Equipped with natural earth and transparent soil, natural soil layer and transparent soil layer are alternately arranged for upper lower leaf in the rectangular glass case (4) stated, and are formed
Foundation model；Loading system includes loading blocks (3), load bar (1), the first strut (2), the second strut (5), lever (7), slides calmly
(6) and counterweight (8) are taken turns, on foundation model, load bar (1) lower end is connected the loading blocks (3) with loading blocks (3), loading
Block (3) rear and front end face is contacted with organic glass case (4) front-rear side walls；First strut (2), the second strut (5) are vertical fixed,
Fixed pulley (6) is connected mounted on the second strut (5) upper end, one end of lever (7) by a connecting rope with counterweight (8), the company
Splicing is around on the fixed pulley (6), and the other end of lever (7) and load bar (1) upper end are hinged；The fulcrum of lever (7) and
One strut (2) upper end is hinged.
2. the apparatus according to claim 1, which is characterized in that the loading blocks are the shallow foundation mould with step structure
Type.
3. the apparatus according to claim 1, which is characterized in that the lever (7) is marked with scale.
4. the apparatus according to claim 1, which is characterized in that rectangular glass case (4) antetheca has vertical scale.
5. the apparatus according to claim 1, which is characterized in that every layer height of natural soil layer and transparent soil layer is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141644.0A CN108269479A (en) | 2018-02-11 | 2018-02-11 | A kind of simulator of shallow foundation foundation failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141644.0A CN108269479A (en) | 2018-02-11 | 2018-02-11 | A kind of simulator of shallow foundation foundation failure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108269479A true CN108269479A (en) | 2018-07-10 |
Family
ID=62774234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810141644.0A Pending CN108269479A (en) | 2018-02-11 | 2018-02-11 | A kind of simulator of shallow foundation foundation failure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108269479A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163952A (en) * | 2018-11-13 | 2019-01-08 | 广东工业大学 | A kind of transparent soil model of stratification and preparation method thereof |
| CN110967468A (en) * | 2019-12-12 | 2020-04-07 | 同济大学 | Testing device for analyzing dispersion instability damage of excavation and filling combined roadbed slope caused by hydraulic environment change |
| CN114550565A (en) * | 2022-04-02 | 2022-05-27 | 浙江工业大学 | Visual teaching model for foundation damage and deformation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201788615U (en) * | 2010-09-10 | 2011-04-06 | 长沙理工大学 | Demonstration instrument for stress and deformation process of soil sample in direct shear test |
| CN203433731U (en) * | 2013-09-17 | 2014-02-12 | 上海工程技术大学 | Model for researching settlement of urban rail transit subway lines |
| RU138372U1 (en) * | 2013-07-02 | 2014-03-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Томский государственный архитектурно-строительный университет" (ТГАСУ) | AUTOMATED STAND FOR TESTING MODELS OF REINFORCED CONCRETE SHELLS AND PLATES |
| 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 |
| CN206431131U (en) * | 2017-02-17 | 2017-08-22 | 长沙理工大学 | A kind of experimental rig for measuring Volume Changes in charcoal mudrock disintegrating procedue |
| CN206601890U (en) * | 2017-03-13 | 2017-10-31 | 河海大学 | Foundation bearing capacity experiment device for teaching |
| CN208903532U (en) * | 2018-02-11 | 2019-05-24 | 浙江大学 | A kind of simulator of shallow foundation foundation failure |
-
2018
- 2018-02-11 CN CN201810141644.0A patent/CN108269479A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201788615U (en) * | 2010-09-10 | 2011-04-06 | 长沙理工大学 | Demonstration instrument for stress and deformation process of soil sample in direct shear test |
| RU138372U1 (en) * | 2013-07-02 | 2014-03-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Томский государственный архитектурно-строительный университет" (ТГАСУ) | AUTOMATED STAND FOR TESTING MODELS OF REINFORCED CONCRETE SHELLS AND PLATES |
| CN203433731U (en) * | 2013-09-17 | 2014-02-12 | 上海工程技术大学 | Model for researching settlement of urban rail transit subway lines |
| CN206431131U (en) * | 2017-02-17 | 2017-08-22 | 长沙理工大学 | A kind of experimental rig for measuring Volume Changes in charcoal mudrock disintegrating procedue |
| CN206601890U (en) * | 2017-03-13 | 2017-10-31 | 河海大学 | Foundation bearing capacity experiment device for teaching |
| 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 |
| CN208903532U (en) * | 2018-02-11 | 2019-05-24 | 浙江大学 | A kind of simulator of shallow foundation foundation failure |
Non-Patent Citations (1)
| Title |
|---|
| 齐昌广: "利用人工合成透明土的岩土物理模拟试验", 岩土力学, pages 3157 - 3163 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163952A (en) * | 2018-11-13 | 2019-01-08 | 广东工业大学 | A kind of transparent soil model of stratification and preparation method thereof |
| CN110967468A (en) * | 2019-12-12 | 2020-04-07 | 同济大学 | Testing device for analyzing dispersion instability damage of excavation and filling combined roadbed slope caused by hydraulic environment change |
| CN110967468B (en) * | 2019-12-12 | 2022-02-15 | 同济大学 | Testing device for analyzing dispersion instability damage of excavation and filling combined roadbed slope caused by hydraulic environment change |
| CN114550565A (en) * | 2022-04-02 | 2022-05-27 | 浙江工业大学 | Visual teaching model for foundation damage and deformation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108269479A (en) | A kind of simulator of shallow foundation foundation failure | |
| CN104751725B (en) | Slope and land slide teaching demonstration device and test method | |
| CN207198149U (en) | One kind is based on numerical simulation study close-in seamses group's water-retaining production experimental provision | |
| CN102681028B (en) | Multi-operating mode frame type portable landslide testing device for geomechanical model | |
| Clementi et al. | Crumbling of Amatrice clock tower during 2016 Central Italy seismic sequence: Advanced numerical insights | |
| CN103837360A (en) | Tunnel pipe shed construction method simulated excavation device and implementation method thereof | |
| CN105223080B (en) | Evaluation method for jointed rock performance and bolting and grouting effects under compression-shear condition | |
| CN108717808A (en) | Constructing tunnel virtual teaching system and method based on 3 D laser scanning modeling | |
| CN204257101U (en) | A kind of tunnel teaching experiment model | |
| CN208903532U (en) | A kind of simulator of shallow foundation foundation failure | |
| CN104464477A (en) | Teaching experiment model for tunnel | |
| CN111926868B (en) | Simulation immersed tube stake end defect processing's work progress presentation device | |
| CN211906747U (en) | Model test device for soft soil area subway shield tunnel to penetrate existing tunnel | |
| CN209432113U (en) | A kind of model settled for studying rail traffic underground line | |
| CN208889184U (en) | A kind of assembled architecture comprehensive practical traning model | |
| CN106365530A (en) | Large-size concrete structure simulation model material and preparation method of same | |
| Delalibera et al. | Numerical analysis of two pile caps with sockets embedded, subject the eccentric compression load | |
| CN107687968B (en) | Loess highland side landslide physical model | |
| CN207376669U (en) | Excavation of foundation pit deformation characteristic research experiment device under a kind of condition of raining | |
| CN203768954U (en) | Roadbed slope supporting structure object large scale model test loading system | |
| CN208848485U (en) | Shear wall and raft foundation construction teaching facilities | |
| CN208140672U (en) | A kind of laboratory testing rig for simulating base pit engineering building enclosure random variation | |
| CN206601889U (en) | Retaining Structures soil pressure experiment device for teaching | |
| CN206075701U (en) | Underground engineering experiences area | |
| CN214530825U (en) | Soil nail stress simulation test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |