CN110470535A - A kind of multi-functional During Geotechnical Tests model casing - Google Patents
A kind of multi-functional During Geotechnical Tests model casing Download PDFInfo
- Publication number
- CN110470535A CN110470535A CN201910689107.4A CN201910689107A CN110470535A CN 110470535 A CN110470535 A CN 110470535A CN 201910689107 A CN201910689107 A CN 201910689107A CN 110470535 A CN110470535 A CN 110470535A
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- China
- Prior art keywords
- column
- cabinet
- model casing
- reaction frame
- test
- 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.)
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 239000002689 soil Substances 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 238000007596 consolidation process Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000011435 rock Substances 0.000 abstract description 3
- 239000004576 sand Substances 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004746 geotextile Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of multi-functional During Geotechnical Tests model casings, and the cabinet of drain valve is equipped with including reaction frame and bottom wall；The anti-column of several groups be fixed on cabinet to side, reaction frame includes crossbeam and column, is in " П " type；The lateral surface of anti-column, the medial surface of column are respectively equipped with several bolts hole, and are fixedly connected by bolt hole.Various types of soil, sand and water can be inserted in cabinet, realize the consolidation process of soil；On reaction frame counterweight load can be realized according to the different loading systems such as test demand matching hydraulic cylinder, or installation fixed pulley；Meanwhile according to the plan-position of the difference bit map reaction frame of test and height, various test requirements documents can be met.Which overcome each section experimental rigs in former rock earth model test to be difficult to the problem of coordinating, and can meet a variety of geotechnical structure tests, complete function, easy to use, flexibility ratio with higher can save a large amount of manpower and material resources, it realizes different test objectives, there is very strong practicability and wide applicability.
Description
Technical field
The present invention relates to a kind of model casings, and in particular to a kind of multifunction test model that can be applied to various During Geotechnical Tests
Case.
Background technique
Model test is a kind of important research method of scientific research, in the model test for being related to ground, water etc., is led to
It often needs using model casing loading test soil and water.
Common model casing has a single function, and is only able to satisfy the demand as container.In geotechnical structure test, need to carry out
The operation such as the preparation of soil sample, consolidation, and usually require to load structure, and the preparation time of soil sample is longer, therefore need to be same
The different location of one soil sample carries out load test, and the operation such as positioning, fixation of loading equipemtn is very complicated, to manpower consumption compared with
Greatly, and the precision of test is not can guarantee.
Therefore, inventing one kind not only can be carried out the preparation of soil sample, consolidation, but also was able to satisfy a variety of installations for testing loading equipemtns and determines
Position, and the multifunction test model casing of different load points can be converted, for reducing model test operation difficulty, improve test effect
Rate is of great significance.
Summary of the invention
To solve the deficiencies in the prior art, the purpose of the present invention is to provide one kind to be both able to achieve the discharging consolidation of the soil body,
It is able to satisfy the multi-functional During Geotechnical Tests model casing for testing different point load demands again.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
A kind of multi-functional During Geotechnical Tests model casing is equipped with the cabinet of drain valve including reaction frame and bottom wall；
The anti-column of several groups be fixed on cabinet to side,
Reaction frame includes crossbeam and column, is in " П " type；
The lateral surface of anti-column, the medial surface of column are respectively equipped with several bolts hole, and are fixedly connected by bolt hole.
The side wall of above-mentioned cabinet is transparent, and the material of side wall is preferably glass or transparent acrylic.
Above-mentioned anti-column is in H-type, and bolt hole is set to along longitudinal direction on the flange plate of outside or outside and inside.
At least one end of the crossbeam of above-mentioned reaction frame and column pass through flanged joint.
The top margin of above-mentioned cabinet is rectangular tube, and the square tube of several supports is equipped between top margin and bottom plate.
Several support plates are equipped between the bottom of above-mentioned anti-column and the bottom plate of cabinet.
Above-mentioned box house is laid with loaded filter.
The position of above-mentioned drain valve is higher than the bottom plate of cabinet.
The invention has the beneficial effects that:
A kind of multi-functional During Geotechnical Tests model casing of the invention can insert various types of soil, sand and water in cabinet, realize soil
Consolidation process；It can be realized according to the different loading systems such as test demand matching hydraulic cylinder, or installation fixed pulley on reaction frame
Counterweight load；Meanwhile according to the plan-position of the difference bit map reaction frame of test and height, various tests can be met and wanted
It asks.
The present invention overcomes each section experimental rigs in former rock earth model test to be difficult to the problem of coordinating, and can meet a variety of rocks
Soil structure test, complete function is easy to use, and flexibility ratio with higher can save a large amount of manpower and material resources, realizes different
Test objective has very strong practicability and wide applicability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cabinet of the invention.
Fig. 2 is the structural schematic diagram of reaction frame of the invention.
Fig. 3 is the schematic diagram of application structure of loading of the invention and acquisition device.
Fig. 4 is the schematic diagram of application structure of vacuum consolidation system of the invention.
Attached meaning marked in the figure is as follows: 1, anti-column, 2, cabinet, 3, rectangular tube, 4, square tube, 5, bolt hole, 6, support
Plate, 7, bottom plate, 8, drain valve, 9, crossbeam, 10, flange, 11, column.
Specific embodiment
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
A kind of multi-functional During Geotechnical Tests model casing, is made of cabinet 2 and reaction frame.
4 structure of square tube of several supports of top margin and bottom plate 7 and top margin that the skeleton of cabinet 2 is made of bottom plate 7, rectangular tube 3
At the side wall of cabinet 2 is transparent glass；Drain valve 8 is set to the bottom surface of side wall, and position is higher than bottom plate 7.
Several groups anti-column 1 made of H profile steel be fixed on cabinet 2 to side, and on the outside and inside of flange plate
Equipped with several bolts hole 5 being arranged in the vertical direction；Several supports for reinforcing are equipped between the bottom and bottom plate 7 of anti-column 1
Plate 6, it is triangular in shape.
Reaction frame is in " П " type, is made of crossbeam 9 and column 11；At least one end of crossbeam 9 and column 11 pass through flange 10
Connection, the medial surface of column 11 is equipped with several bolts hole 5 corresponding with anti-column 1, and is fixedly connected by bolt hole 5.
Loaded filter is laid with according to the requirement of test inside cabinet 2.
In actual use,
Before carry out model test, the loaded filter of bottom is first laid with according to test requirements document, then filling is handled well into cabinet 2
Test soil, and the operations such as vibration compacting are carried out simultaneously, up to test soil filling to projected depth.
It is filled the water into model casing, and opens the drain valve 8 of bottom, connect water pipe and the water outlet height of water pipe is kept to be lower than
Model casing bottom makes to test native discharging consolidation.
Loading system (jack etc.) is installed on reaction frame crossbeam 9, according to the position of test structure object, reaction frame is hung
To 1 top of anti-column of corresponding position, keep reaction frame corresponding with the bolt hole 5 of anti-column 1, using bolt by reaction frame and instead
Column 1 is fixed.It can be tested.
If desired the height of loading system is adjusted, then bolt removal can be corresponded to reaction frame bolt hole 5 to anti-column 1
The bolt hole 5 of upper lower or higher row, and fix again.
If test point changes, reaction frame can be unloaded, be installed to the anti-column 1 of other groups, reaction frame is high
The position of degree and loading system also can adjust.
Anti- column 1 and column 11 are fixed, can facilitate fine tuning reaction frame by the spacing between 10 adjusting post 11 of flange
Width, it is ensured that reaction frame is smoothly installed.
Embodiment 1
Loading and the application of acquisition device.As shown in figure 3, appended drawing reference: 13, vertically to load actuator, 14, horizontal direction load
Actuator, 15, laser displacement sensor, 16, control and acquisition system, 17, movable support.
It can be servo-cylinder or servo electric jar to load actuator 13(that crossbeam 9, which is furnished with vertically).The company on actuator top
The mode of connecing can guarantee that actuator can arbitrarily be moved along crossbeam length direction, and realizes and load to the vertical force of works or displacement.
Several row's bolts hole are had on the inside of anti-column 1, have horizontal direction to load actuator 14, can be fixed by bolts in anti-vertical
Column is realized and is loaded to the horizontal force of works or displacement, can shift one's position up and down.
The included force snesor of actuator is loaded, by load actuator both vertically as well as horizontally, it can be achieved that structure
Unidirectional vertical load, unidirectional horizontal addload, the vertical horizontal coupling load of object.
It loads and laser displacement sensor 15 is set in actuator, and its position can be finely adjusted, be used for real-time measurement structure
The displacement that object occurs.
Control and acquisition system: have the function of comprehensively control and acquisition.Inside is equipped with actuator controller, actuator power
With displacement signal acquisition system (power and displacement transducer signal Acquisition Instrument).And specific sensing can be added according to test requirements document
Device signal acquisition module (such as common soil pressure sensor of During Geotechnical Tests, pore water pressure sensor etc.), and integrally acquire
Test data.
Acquisition system can not only store, export the signal numerical value of sensor acquisition, moreover it is possible to export certain by display in real time
The curve graph of a sensor signal.
Embodiment 2
The application of vacuum consolidation system.As shown in figure 4, appended drawing reference: 18, loaded filter, 19, geotextiles, 20, water tank, 21, negative
Press pump.
Vacuum consolidation system includes:
Loaded filter 18: being made of stone or sand, inserts model casing bottom, is highly higher than drain valve height；
Geotextiles 19: being covered on loaded filter, anti-fluid stopping soil；
Water tank 20: connecting drain valve 8 by water pipe, hermetically sealed, for storing the water of extraction；
Negative pressure pump 21: connection water tank, by outlet pipe to applying negative pressure in model casing.
When vacuum consolidates, one layer of plastic foil is covered in model upper box part, connects negative pressure pump, water tank, model casing.It opens negative
Press pump applies negative pressure to model casing, and the water and air in soil just accelerates downward seepage flow, achievees the effect that accelerate consolidation.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the above embodiments do not limit the invention in any form, all obtained by the way of equivalent substitution or equivalent transformation
Technical solution is fallen within the scope of protection of the present invention.
Claims (8)
1. a kind of multi-functional During Geotechnical Tests model casing, which is characterized in that be equipped with the cabinet of drain valve including reaction frame and bottom wall；
The anti-column of several groups be fixed on cabinet to side,
Reaction frame includes crossbeam and column, is in " П " type；
The lateral surface of anti-column, the medial surface of column are respectively equipped with several bolts hole, and are fixedly connected by bolt hole.
2. a kind of multi-functional During Geotechnical Tests model casing according to claim 1, which is characterized in that the side wall of the cabinet is in
Transparence.
3. a kind of multi-functional During Geotechnical Tests model casing according to claim 1, which is characterized in that the anti-column is in H-type,
Bolt hole is set to along longitudinal direction on the flange plate of outside or outside and inside.
4. a kind of multi-functional During Geotechnical Tests model casing according to claim 1, which is characterized in that the crossbeam of the reaction frame
At least one end and column pass through flanged joint.
5. a kind of multi-functional During Geotechnical Tests model casing according to claim 1, which is characterized in that the top margin of the cabinet is
Rectangular tube is equipped with the square tube of several supports between top margin and bottom plate.
6. a kind of multi-functional During Geotechnical Tests model casing according to claim 1, which is characterized in that the bottom of the anti-column
Several support plates are equipped between the bottom plate of cabinet.
7. a kind of multi-functional During Geotechnical Tests model casing according to claim 1, which is characterized in that the box house is laid with
Loaded filter.
8. a kind of multi-functional During Geotechnical Tests model casing according to claim 1, which is characterized in that the position of the drain valve
Higher than the bottom plate of cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910689107.4A CN110470535A (en) | 2019-07-29 | 2019-07-29 | A kind of multi-functional During Geotechnical Tests model casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910689107.4A CN110470535A (en) | 2019-07-29 | 2019-07-29 | A kind of multi-functional During Geotechnical Tests model casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110470535A true CN110470535A (en) | 2019-11-19 |
Family
ID=68509096
Family Applications (1)
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|---|---|---|---|
| CN201910689107.4A Pending CN110470535A (en) | 2019-07-29 | 2019-07-29 | A kind of multi-functional During Geotechnical Tests model casing |
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| Country | Link |
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| CN (1) | CN110470535A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305902A (en) * | 2022-08-25 | 2022-11-08 | 中国电建集团华东勘测设计研究院有限公司 | Drawer type multi-working-condition vacuum prepressing model box |
| CN116863803B (en) * | 2023-06-07 | 2024-04-02 | 长安大学 | Simulation device and method for model test in rock-soil body drilling |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200952980Y (en) * | 2006-09-16 | 2007-09-26 | 合肥工业大学 | Door type reaction frame for structural experiment |
| CN102081021A (en) * | 2010-12-28 | 2011-06-01 | 长安大学 | Soil consolidation settlement meter of centrifugal model testing device |
| CN204556370U (en) * | 2015-05-08 | 2015-08-12 | 淮阴工学院 | A kind of geotechnical model case vertical loading device |
| CN204594786U (en) * | 2015-05-08 | 2015-08-26 | 淮安信息职业技术学院 | A kind of geotechnical model case horizontal loading apparatus |
| US20150267370A1 (en) * | 2015-06-03 | 2015-09-24 | Ramesh Chandra Gupta | Test Device for Determining Three-Dimensional Consolidation Properties of Soils |
| US20160356685A1 (en) * | 2015-06-03 | 2016-12-08 | Ramesh Chandra Gupta | Test Device For Determining Three-Dimensional Consolidation Properties Of Soils |
| US20170284911A1 (en) * | 2016-03-31 | 2017-10-05 | Powerchina Huadong Engineering Corporation Limited | Integrated style shear apparatus for rock structural plane and a shear experimental method for rock structural plane |
| CN108303065A (en) * | 2018-03-14 | 2018-07-20 | 西安建筑科技大学 | A kind of micro breadth oscillation ground dynamical settlement laboratory apparatus and application method |
| CN208254971U (en) * | 2018-06-15 | 2018-12-18 | 陕西省建筑科学研究院有限公司 | One kind, which is just torn open, takes formula indoor model soil test loading device |
| CN211122290U (en) * | 2019-07-29 | 2020-07-28 | 中交上海三航科学研究院有限公司 | Multifunctional rock soil test model box |
-
2019
- 2019-07-29 CN CN201910689107.4A patent/CN110470535A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200952980Y (en) * | 2006-09-16 | 2007-09-26 | 合肥工业大学 | Door type reaction frame for structural experiment |
| CN102081021A (en) * | 2010-12-28 | 2011-06-01 | 长安大学 | Soil consolidation settlement meter of centrifugal model testing device |
| CN204556370U (en) * | 2015-05-08 | 2015-08-12 | 淮阴工学院 | A kind of geotechnical model case vertical loading device |
| CN204594786U (en) * | 2015-05-08 | 2015-08-26 | 淮安信息职业技术学院 | A kind of geotechnical model case horizontal loading apparatus |
| US20150267370A1 (en) * | 2015-06-03 | 2015-09-24 | Ramesh Chandra Gupta | Test Device for Determining Three-Dimensional Consolidation Properties of Soils |
| US20160356685A1 (en) * | 2015-06-03 | 2016-12-08 | Ramesh Chandra Gupta | Test Device For Determining Three-Dimensional Consolidation Properties Of Soils |
| US20170284911A1 (en) * | 2016-03-31 | 2017-10-05 | Powerchina Huadong Engineering Corporation Limited | Integrated style shear apparatus for rock structural plane and a shear experimental method for rock structural plane |
| CN108303065A (en) * | 2018-03-14 | 2018-07-20 | 西安建筑科技大学 | A kind of micro breadth oscillation ground dynamical settlement laboratory apparatus and application method |
| CN208254971U (en) * | 2018-06-15 | 2018-12-18 | 陕西省建筑科学研究院有限公司 | One kind, which is just torn open, takes formula indoor model soil test loading device |
| CN211122290U (en) * | 2019-07-29 | 2020-07-28 | 中交上海三航科学研究院有限公司 | Multifunctional rock soil test model box |
Non-Patent Citations (2)
| Title |
|---|
| J. SVOBODA ET AL: "Preliminary geotechnical results from the Mock-Up-CZ experiment", APPLIED CLAY SCIENCE, vol. 47, 25 December 2008 (2008-12-25), pages 139 - 146, XP026821331 * |
| 刘智鹏: "试析水利工程地基基础岩土试验检测的技术", 门窗, 30 November 2017 (2017-11-30), pages 208 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305902A (en) * | 2022-08-25 | 2022-11-08 | 中国电建集团华东勘测设计研究院有限公司 | Drawer type multi-working-condition vacuum prepressing model box |
| CN115305902B (en) * | 2022-08-25 | 2024-06-11 | 中国电建集团华东勘测设计研究院有限公司 | Drawer type multiplexing Kuang Zhenkong pre-pressing model box |
| CN116863803B (en) * | 2023-06-07 | 2024-04-02 | 长安大学 | Simulation device and method for model test in rock-soil body drilling |
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