CN108918277A - Multifunctional self-leveling weighing apparatus stress model chamber - Google Patents
Multifunctional self-leveling weighing apparatus stress model chamber Download PDFInfo
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- CN108918277A CN108918277A CN201810740886.1A CN201810740886A CN108918277A CN 108918277 A CN108918277 A CN 108918277A CN 201810740886 A CN201810740886 A CN 201810740886A CN 108918277 A CN108918277 A CN 108918277A
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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
- G01N3/12—Pressure testing
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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
- G01N3/02—Details
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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
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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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses Multifunctional self-leveling weighing apparatus stress model chambers, belong to geotechnical engineering laboratory test research field.The present invention is improved model casing on the basis of separate type stress model case, model cabinet frame and counterforce device are made of fashioned iron and standard component, peace, which is torn open, to be simple and convenient to operate, cost is relatively low, indoor model test can be carried out to a variety of practical geotechnical engineering problems, counterforce device is directly connected to model cabinet frame, forms the counter force system of self-balancing, does not need that counterforce device additionally is arranged.Loading mode conversion is convenient, and loading device constitutes independent module, and position is easy to adjust；Model casing rear baffle separation design, easy cleaning cast material after the completion of test.When carrying out the Eccentric Loads in Layered Soils and Research such as pile foundation or friction pile using this model casing, experimentation cost will be greatly reduced, accelerates test progress, improves the reliability of test data.
Description
Technical field
The invention belongs to geotechnical engineering laboratory test research fields, are mainly used for pile foundation and the carrying of side slope (landslide) friction pile
Force characteristic model investigation.
Background technique
Pile foundation is most common base form in Practical Project, and friction pile is a kind of supporting knot of important side slope (landslide)
Structure, indoor model test are the important means for studying its bearing capacity characteristics, and indoor model case mostly uses separation loading method at present,
Model casing and counterforce device are anchored to ground respectively, loading module is set between the two.
Separation loaded type model casing has its limitation and deficiency：The first, the position of loading module adjusts inconvenient；The second,
A set of counterforce device is only used for a kind of loading method (horizontal or vertical)；Third, counterforce device cost of manufacture are high；4th, function
Can be single, it is inconvenient.
Summary of the invention
It is an object of the invention to which model casing is improved on the basis of separate type stress model case, model cabinet frame
It is made with counterforce device of fashioned iron and standard component, peace, which is torn open, to be simple and convenient to operate, and cost is relatively low, can be to a variety of practical ground works
Cheng Wenti carries out indoor model test, mainly solves following technical problem：(1) counterforce device directly connects with model cabinet frame
It connects, forms the counter force system of self-balancing, do not need that counterforce device additionally is arranged.(2) loading method (horizontal or vertical) conversion side
Just.(3) loading device constitutes independent module, position (4) model casing rear baffle separation design easy to adjust, after the completion of test
Easy cleaning cast material.
Therefore, when carrying out the Eccentric Loads in Layered Soils and Research such as pile foundation or friction pile using this model casing, test will greatly be reduced
Cost accelerates test progress, improves the reliability of test data.
To achieve the above object, the stress model chamber the technical solution adopted by the present invention is that Multifunctional self-leveling weighs, the mould
Molding box is made of counter-force loading system and the big system of model box body two, which is connected by fashioned iron by welding and bolt
The mode connect forms.
Counter-force loading system includes bidirectional hydraulic jack (1), force snesor (2), oil-way pipe (3), screw rod (4), counter-force
Beam (5), high strength nut (6), gasket (7), high-strength screw rod (9) and high-strength bolt (14)；Wherein reaction beam (5) is divided into perpendicular
To reaction beam and horizontal direction reaction beam, model box body by four horizontal high-strength bolts (9) and high-strength nut (6) respectively with
Two horizontal direction reaction beam connections, vertical reaction beam are supported on two horizontal direction reaction beams, use high-strength bolt (9) at support
It is tightened with high-strength nut (6), is equipped with gasket (7) between high-strength bolt (9) and high-strength nut (6)；Loading module passes through screw rod (4)
It is fixed on vertical reaction beam (5) with high strength nut (6)；Vertical reaction beam and horizontal direction reaction beam are equipped with high-strength bolt
(14)；Bidirectional hydraulic jack (1) is mounted on the centre of vertical reaction beam, the mandril and model casing of bidirectional hydraulic jack (1)
Rigid load plate (8) on cabinet is corresponding；Bidirectional hydraulic jack (1) is connect with oil-way pipe (3), bidirectional hydraulic jack
(1) force snesor (2) are equipped with；
Model box body includes rigid load plate (8), cabinet horizontal connector (10), the vertical connector of cabinet (11), case
Body frame (12), detachable stiff girder (13), detachable rear baffle (15), non-dismountable side baffle (16) and non-dismountable front
Plate (17)；Rigid load plate (8) is arranged in the front side of box frame (12), and cabinet horizontal connector (10), cabinet vertically connect
By being welded to connect, box frame (12) and baffle, detachable stiff girder (13) pass through bolt for part (11) and box frame (12)
Connection, box frame (12) and rigid load plate (8) are connectionless；Detachable rear baffle (15), non-dismountable side baffle (16) and
Non-dismountable front apron (17) is laid along the rear portion, side and front of box frame (12).
Force snesor (2) external Full-automatic hydraulic control system.
Oil-way pipe (3) external Full-automatic hydraulic control system.
Non-dismountable front apron (17) is hard mopping plank.
Non-dismountable side baffle (16) is made of tempered glass.
Model is made in model box body, is adjusted reaction beam (5) to suitable position, adjustment by adjusting nut (6)
The loading module that bidirectional hydraulic jack (1), force snesor (2), fixing piece (4) form lays other sensings to suitable position
Device starts hydraulic control system, is further applied load by testing program.
Multifunctional self-leveling weighs, and there are three types of loading modes for model casing, select loading mode according to research contents.First level adds
Load mode, is suitable for the model investigation of side slope or landslide (can lay friction pile), and loading unit can pass through rigid load
Plate applies horizontal force simulation side slope or Thrust of Landslide；Second horizontal addload mode is suitable for the research of stake Characteristics of horizontal bearing capacity；
Vertical loading mode is suitable for the research of pile vertical carrying capacity characteristic.
The conversion of loading mode is very convenient, and first level loading mode is converted to the second horizontal addload mode and must only be adjusted
The position of corresponding nut and loading module；Horizontal addload mode is converted to vertical loading mode only must be by reaction frame entirety
The vertical connector of cabinet (11) is removed and be connected to, the position of each corresponding nut and loading module is then adjusted.
Detail structure and the connection of loading module as shown in figure 3, force snesor (2) and bidirectional hydraulic jack (1) work
Plug top is connected through a screw thread, and hydraulic jack (2) bottom has screw thread to connect with screw rod (4)；Then, by gasket (7) and high-strength
Nut (6) are spent to be fixed on reaction beam (5).
Back-to-back, the midfeather 30mm by two channel steels is spaced constant spacing on channel steel in advance and bores two rows of circular holes, uses height
Strength bolt and nut (14) connection, the common stress of composition reaction beam and deformation.When certain bolts interfere reaction frame assembly, can incite somebody to action
Its partial dismantling.
Detailed description of the invention
Fig. 1 Multifunctional self-leveling weighing apparatus indoor model case.(a) it is schematic view of facade structure, (b) is planar structure schematic diagram.
Fig. 2 loading mode figure.(a) (side slope or landslide) schematic diagram is loaded for first level, (b) is the second horizontal addload
(stake horizontal force) schematic diagram is (c) vertical load (stake vertical applied force) schematic diagram.
Fig. 3 loading module detail drawing.
Fig. 4 reaction beam detail drawing.(a) it is side view, (b) is cross-section diagram, (c) is elevation.
Specific embodiment
Model is made in model box body, is adjusted reaction beam (5) to suitable position, adjustment by adjusting nut (6)
The loading module that bidirectional hydraulic jack (1), force snesor (2), fixing piece (4) form lays other sensings to suitable position
Device starts hydraulic control system, is further applied load by testing program.
Multifunctional self-leveling weighs, and there are three types of loading modes for model casing, select loading mode according to research contents.First level adds
Load mode, is suitable for the model investigation of side slope or landslide (can lay friction pile), and loading unit can pass through rigid load
Plate applies horizontal force simulation side slope or Thrust of Landslide；Second horizontal addload mode is suitable for the research of stake Characteristics of horizontal bearing capacity；
Vertical loading mode is suitable for the research of pile vertical carrying capacity characteristic.
The conversion of loading mode is very convenient, and first level loading mode is converted to the second horizontal addload mode and must only be adjusted
The position of corresponding nut and loading module；Horizontal addload mode is converted to vertical loading mode only must be by reaction frame entirety
The vertical connector of cabinet (11) is removed and be connected to, the position of each corresponding nut and loading module is then adjusted.
Detail structure and the connection of loading module as shown in figure 3, force snesor (2) and bidirectional hydraulic jack (1) work
Plug top is connected through a screw thread, and hydraulic jack (2) bottom has screw thread to connect with screw rod (4)；Then, by gasket (7) and high-strength
Nut (6) are spent to be fixed on reaction beam (5).
Counter-force loading system can be realized three kinds of loading modes：First level loading mode (side slope or landslide), the second water
Flat loading mode (stake horizontal force), vertical loading mode (stake vertical applied force) are laid when test according to specific testing program and are passed
Sensor monitors dependence test project.Reaction frame is made of three beams, and every beam is formed by stacking by two channel steels are back-to-back, reaction frame
Liang Yuliang between useScrew rod connection.Loading unit is by the bidirectional hydraulic jack, force snesor, the fixing piece that customize
It is formed with four part of Full-automatic hydraulic control system.
Dead size is 120cm × 76cm × 100cm inside model casing, and outer framework uses 80cm × 80cm × 6cm angle steel
It is welded, angle steel interval constant spacing is equipped withDrilling, use bolt static housing plate, the company of cabinet and reaction frame
Fitting uses internal diameter 32mm, outer diameter 52mm, on the steel-pipe welding to box frame of long 164mm.
Reaction frame passes through 4High-strength screw rod and nut are connected with the preset connector of model box body, connection letter
It is single, reliable.
Claims (6)
- The stress model chamber 1. Multifunctional self-leveling weighs, it is characterised in that：The model casing is by counter-force loading system and model casing case The big system of body two composition, the model box body are made up of fashioned iron welding and bolted mode；Counter-force loading system includes bidirectional hydraulic jack (1), force snesor (2), oil-way pipe (3), screw rod (4), reaction beam (5), high strength nut (6), gasket (7), high-strength screw rod (9) and high-strength bolt (14)；Wherein reaction beam (5) is divided into vertically Reaction beam and horizontal direction reaction beam, model box body is by four horizontal direction high-strength bolts (9) and high-strength nut (6) respectively with two The connection of root horizontal direction reaction beam, vertical reaction beam is supported on two horizontal direction reaction beams, at support using high-strength bolt (9) and High-strength nut (6) is tightened, and is equipped with gasket (7) between high-strength bolt (9) and high-strength nut (6)；Loading module by screw rod (4) and High strength nut (6) is fixed on vertical reaction beam (5)；Vertical reaction beam and horizontal direction reaction beam are equipped with high-strength bolt (14)；Bidirectional hydraulic jack (1) is mounted on the centre of vertical reaction beam, the mandril and model casing of bidirectional hydraulic jack (1) Rigid load plate (8) on cabinet is corresponding；Bidirectional hydraulic jack (1) is connect with oil-way pipe (3), bidirectional hydraulic jack (1) force snesor (2) are equipped with；Model box body includes rigid load plate (8), cabinet horizontal connector (10), the vertical connector of cabinet (11), cabinet frame Frame (12), detachable stiff girder (13), detachable rear baffle (15), non-dismountable side baffle (16) and non-dismountable front apron (17)；Rigid load plate (8) is arranged in the front side of box frame (12), cabinet horizontal connector (10), the vertical connector of cabinet (11) with box frame (12) by being welded to connect, box frame (12) and baffle, detachable stiff girder (13) are connected by bolt It connects, box frame (12) and rigid load plate (8) are connectionless；Detachable rear baffle (15), non-dismountable side baffle (16) and not Detachable front baffle (17) is laid along the rear portion, side and front of box frame (12).
- The stress model chamber 2. Multifunctional self-leveling according to claim 1 weighs, it is characterised in that：Force snesor (2) is outside Connect Full-automatic hydraulic control system.
- The stress model chamber 3. Multifunctional self-leveling according to claim 1 weighs, it is characterised in that：Oil-way pipe (3) is external Full-automatic hydraulic control system.
- The stress model chamber 4. Multifunctional self-leveling according to claim 1 weighs, it is characterised in that：Non-dismountable front apron It (17) is hard mopping plank.
- The stress model chamber 5. Multifunctional self-leveling according to claim 1 weighs, it is characterised in that：Non-dismountable side baffle (16) it is made of tempered glass.
- The stress model chamber 6. Multifunctional self-leveling according to claim 1 weighs, it is characterised in that：In model box body Model is made, reaction beam (5) is adjusted to suitable position by adjusting nut (6), adjusts bidirectional hydraulic jack (1), power passes The loading module that sensor (2), fixing piece (4) form lays other sensors, starts hydraulic control system, press to suitable position Testing program is further applied load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810740886.1A CN108918277A (en) | 2018-07-08 | 2018-07-08 | Multifunctional self-leveling weighing apparatus stress model chamber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810740886.1A CN108918277A (en) | 2018-07-08 | 2018-07-08 | Multifunctional self-leveling weighing apparatus stress model chamber |
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| Publication Number | Publication Date |
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| CN108918277A true CN108918277A (en) | 2018-11-30 |
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| CN201810740886.1A Pending CN108918277A (en) | 2018-07-08 | 2018-07-08 | Multifunctional self-leveling weighing apparatus stress model chamber |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141607A (en) * | 2020-01-13 | 2020-05-12 | 北京工业大学 | Self-balancing multi-loading-path unidirectional shearing box for pile-soil test |
| CN113176071A (en) * | 2021-04-21 | 2021-07-27 | 北京工业大学 | Offshore wind power structure system coupling model test loading system under action of complex dynamic load |
| CN115262662A (en) * | 2022-06-23 | 2022-11-01 | 中建东设岩土工程有限公司 | Suspension type cement mixing pile composite foundation indoor model test device |
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| CN201413268Y (en) * | 2009-05-26 | 2010-02-24 | 同济大学 | Model test device for simulating coupling between soil sideway and axial load |
| CN104807746A (en) * | 2015-04-24 | 2015-07-29 | 中国矿业大学(北京) | Angle-adjustable side slope testing bed |
| CN105277444A (en) * | 2015-04-21 | 2016-01-27 | 河南理工大学 | Full-mechanical-type pile model test device and test method based on multidirectional loading |
| CN206223564U (en) * | 2016-11-14 | 2017-06-06 | 中铁第一勘察设计院集团有限公司 | A kind of fixed loading device based on side slope |
| CN108120635A (en) * | 2017-12-10 | 2018-06-05 | 西安科技大学 | A kind of removable variable element multifunction test device |
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2018
- 2018-07-08 CN CN201810740886.1A patent/CN108918277A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201413268Y (en) * | 2009-05-26 | 2010-02-24 | 同济大学 | Model test device for simulating coupling between soil sideway and axial load |
| CN105277444A (en) * | 2015-04-21 | 2016-01-27 | 河南理工大学 | Full-mechanical-type pile model test device and test method based on multidirectional loading |
| CN104807746A (en) * | 2015-04-24 | 2015-07-29 | 中国矿业大学(北京) | Angle-adjustable side slope testing bed |
| CN206223564U (en) * | 2016-11-14 | 2017-06-06 | 中铁第一勘察设计院集团有限公司 | A kind of fixed loading device based on side slope |
| CN108120635A (en) * | 2017-12-10 | 2018-06-05 | 西安科技大学 | A kind of removable variable element multifunction test device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141607A (en) * | 2020-01-13 | 2020-05-12 | 北京工业大学 | Self-balancing multi-loading-path unidirectional shearing box for pile-soil test |
| CN113176071A (en) * | 2021-04-21 | 2021-07-27 | 北京工业大学 | Offshore wind power structure system coupling model test loading system under action of complex dynamic load |
| CN115262662A (en) * | 2022-06-23 | 2022-11-01 | 中建东设岩土工程有限公司 | Suspension type cement mixing pile composite foundation indoor model test device |
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Application publication date: 20181130 |
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