CN109187204A - A kind of experimental rig for simulating pile-soil interaction when vertically recycling load-bearing - Google Patents
A kind of experimental rig for simulating pile-soil interaction when vertically recycling load-bearing Download PDFInfo
- Publication number
- CN109187204A CN109187204A CN201810876677.XA CN201810876677A CN109187204A CN 109187204 A CN109187204 A CN 109187204A CN 201810876677 A CN201810876677 A CN 201810876677A CN 109187204 A CN109187204 A CN 109187204A
- Authority
- CN
- China
- Prior art keywords
- pressure chamber
- pile
- pressure
- load
- main machine
- 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.)
- Granted
Links
Classifications
-
- 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
-
- 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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
-
- 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
- G01N2203/0005—Repeated or cyclic
-
- 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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/0202—Control of the test
Abstract
A kind of experimental rig for simulating pile-soil interaction when vertically recycling load-bearing, including main machine frame, pressure chamber, ground body Model, loading system, monitoring system, control cabinet and software systems；The main machine frame is made of four brace steel posts, main machine base and cushion cap；The pressure chamber is placed on main machine base, is fixed its position by baffle；The loading system is erected on whole main machine frame；The monitoring system is made of the pressure sensor and confining pressure controller being mounted under load plate；The control cabinet is placed outside main machine frame, connects computer by control cabinet and manipulates to tester.The present invention, which simulates stake under different operating conditions by laboratory test, can more accurately be obtained stake top axle power and displacement and its change procedure by pile-soil interaction characteristic when vertical cyclic load.
Description
Technical field
The invention belongs to the technical field of geotechnical engineering model experiment, stake soil when specifically a kind of simulation vertically recycles load-bearing
The experimental rig more particularly to geotechnical engineering field different depth soil consolidation situation and cyclic load mould of interaction
The device of pile-soil interaction when quasi- vertical circulation load-bearing.
Background technique
Since the 21th century, the strategic location of ocean is placed in unprecedented height by China, passes through exploitation effectively and reasonably
With using marine resources, marine economy is greatly developed, China is gradually turned into ocean power.Pile foundation carries energy by it
The advantages that power is high, deformation is small, mechanization of building operation degree is high is offshore drilling platform, port and pier, Wind turbines, bridge spanning the sea etc.
One of most common foundation pattern of works.Although the design of pile foundation is relatively simple, compared with terrestrial environment, complicated ocean
Environment increases more security risks.Marine structure in use inevitably by violent earthquake, wave or
Pile foundation bearer properties are had large effect by significantly cyclic load caused by storm wind etc..But it is long-term relatively small size
The influence of vertical cyclic load of degree also can not be ignored, the cyclic load, over strait as passed to pile foundation when offshore wind turbine operation
The traffic loading of pile foundation is passed to when vehicle passes through on bridge, these loads all include the composition of vertical cyclic load, this
The circulation amplitude of class load and its duration, the effect under long term more can not be ignored all than more significant.For
Adapt to the needs of engineering, experimental study is to disclose under cyclic load pile foundation bearer properties most directly and one of most efficient method.
Test in relation to pile foundation mainly includes the model test and centrifugal field model test of live prototype test, 1g.Scene
Prototype test can be authentic and valid reflection pile foundation carrying and deformation, it is contemplated that the construction period mistake of prototype test
Length, difficulty of construction is big and experimentation cost is high, and the experimental study of pile foundation vertical bearer properties at present is mainly based on model test.Room
The model test operability of interior small scale, systematicness and repeatability are strong, and load number is larger, up to up to ten thousand times, can get big
Measure the data for analysis.
Summary of the invention
In order to probe into the challenge of pile-soil interaction under cyclic load, the present invention provide a kind of vertical circulation of simulation by
The experimental rig of pile-soil interaction when lotus can simulate pile-soil interaction situation under different cyclic loads and confining pressure, and
Pile soil stress deformation situation can accurately be obtained.
To achieve the above object, technical scheme is as follows: a kind of to simulate stake native phase interaction when vertically recycling load-bearing
Experimental rig, including main machine frame, pressure chamber, ground body Model, loading system, monitoring system, control cabinet and software
System, specific structure and connection relationship are as follows:
The main machine frame includes main machine base, steel column and cushion cap, and the intermediate region of the main machine base is equipped with two mutually
Parallel line slide rail is provided with pressure chamber's pallet on line slide rail, and pressure chamber's pallet can be carried out by line slide rail
It is mobile, hanging in and installing convenient for pressure chamber's cover.Baffle is equipped on rear side of main machine base, main machine base is equipped with 4 steel columns and hangs down
It is directly fixed on main machine base, fixation, cushion cap and steel column is bolted using welded connecting in main machine base and steel column；
The pressure chamber includes pressure chamber base and pressure chamber's cover, and pressure chamber base is fixed on pressure chamber's pallet, passes through
Pressure chamber's cover is fixed on pressure chamber's pallet by bolt forms pressure chamber, and pressure chamber base is provided with water outlet above ground sample
Water outlet and pressurisation of pressure chambers mouth below mouth, ground sample, pressure chamber top are provided with pressure chamber's water inlet and pressure chamber row
Port, there are two liquid level nozzle, pressure chamber's pallet and baffles, and fixation is bolted for the setting of the pressure chamber whole body；
The ground body Model includes ground sample, permeable stone, filter paper and latex film, and the ground sample is packed into latex film
It is interior, filter paper and permeable stone are padded above pad filter paper and permeable stone, ground sample below ground sample；
The loading system includes support rod, roller screw, load plate, shaft coupling, servo motor and Model Pile, described
Support rod is vertically fixed on main machine frame, and roller screw is parallel to each other with support rod, and the load plate is isosceles triangle plate,
Connected circular hole is provided in three angle points of load plate, load plate both ends circular hole is placed in support rod, and load plate one end circular hole is placed in rolling
Column lead screw, shaft coupling are located at right above roller screw, and servo motor is placed in right above shaft coupling, and Model Pile passes through pressure sensor
And nut is connected with load plate；
The monitoring system includes encoder, pressure sensor and confining pressure sensor, and the encoder is located at roller silk
Immediately below thick stick, pressure sensor is fixed below load plate, and confining pressure sensor is mounted in confining pressure controller；
The control cabinet include the confining pressure controller and servo motor, the Zhou Qi Sa pressure sensor it is several
Route is controlled, control cabinet two sides are respectively arranged with route hole and confining pressure controller water inlet and confining pressure controller water outlet, control
Cabinet top portion is provided with start button, stop button, run indicator and scram button.
The software systems are the application program voluntarily programmed.
The pressure chamber and pressure chamber's pallet are bolted to form the pressure chamber that upper end opening only has diameter 10mm, on
End opening is used for the insertion of Model Pile, and opening is provided with the waterproof washer of internal diameter 10mm, can pass through confining pressure control in pressure chamber
Device processed applies the water pressure of maximum confining pressure 1Mpa, and range hydraulic pressure is adjusted greatly and error is less than 1kPa, can effectively simulate not
With the consolidation situation of Rock And Soil under buried depth.
The ground specimen size be diameter x high=300mm x 400mm, latex film having a size of internal diameter x high x thickness=
300mm x 500mm x 3mm, ground sample separate Rock And Soil and water pressure by latex film, energy in latex film
It is enough that confining pressure load effectively is carried out to Rock And Soil.
The loading system can apply the dynamic displacement of the maximum Static Correction and maximum amplitude 5cm of 10cm, dynamically load energy
It enough exports sine wave, triangular wave and square wave, loading frequency and is controllable to 0.01Hz~1Hz, vertical load provides a variety of
Loading form can simulate realistically the possible stress condition of Practical Project pile foundation plinth.
The Model Pile uses solid stainless piling bar, and the long 0~40cm of range of driven pile, stake diameter 1cm, stake end is respectively adopted flat
Two kinds of forms of conical pile top that bottom pile top and cone angle are 60 degree, stake top are provided with high 1cm, and the pile cover of diameter 2cm is used for and pressure
Force snesor is connected and fixed, and various forms of Model Pile ends can simulate possible stake end form in different actual conditions, with reality
Border engineering is more consistent.
The control cabinet is connected by data line with computer, carries out practical behaviour to tester by the software voluntarily programmed
Control, software can reading data in real-time, it is easy to operate.
7, a kind of test method of pile-soil interaction when simulation vertically recycles load-bearing, which is characterized in that concrete operations step
It is rapid as follows:
1) will preparation soil sample sample preparation at diameter 300mm high 400mm ground sample,
2) pad puts permeable stone and filter paper in pressure chamber's pallet, that is, pressure chamber base,
3) by emulsion film a set of in pressure chamber base and banding rubber band,
4) put on and hold film bucket and by its banding, cover latex film top is counter on holding film bucket, with vacuum pump by latex film with
The gas extraction between film bucket is held, latex film is attached to and holds on film bucket,
5) ground sample is fitted into latex film, puts filter paper and permeable stone above ground sample and place sample cap.
6) vacuum pump is closed, film bucket is held in dismounting,
7) pressure chamber is covered and predetermined position is hung in by boom hoisting, pass through bolt with the pressure chamber base on pressure chamber's pallet
Fastening forms pressure chamber,
8) it is inserted into Model Pile from pressure chamber's top open part, detects pressure chamber's opening and whether soil sample sample cap is right
Together, Model Pile is extracted after having detected,
9) it is carried by pressure chamber's pallet, is slided into behind predetermined position by line slide rail and connect pressure chamber's pallet admittedly with baffle
It is fixed,
10) Model Pile is inserted into ground sample, is controlled by computer, the position for adjusting pressure sensor makes itself and Model Pile
Stake top contact, is tightened fixation by nut, and Model Pile is embedded in predetermined depth by load deflection,
11) the pressure chamber's water inlet and pressure chamber's exhaust outlet above pressure chamber are opened, water is entered into water above pressure chamber
Mouth injection, observes liquid level tube water level lifting height, stops filling the water after exhaust outlet has water to gush out and tightens vent cap and enter water
Mouth cap,
12) confining pressure controller setting pressure chamber's hydraulic pressure is controlled by computer and reaches predetermined value,
13) after soil sample consolidation, driving servo motor drives roller screw by shaft coupling, and the sliding block of roller screw drives
Ground sample output pressure is tested in the stake of load plate driving model.Wherein, output pressure is measured by pressure sensor and feeds back note
Record, vibration frequency and amplitude are by encoder measurement and feedback record.
The beneficial effects of the present invention are:
The Rock And Soil consolidated under different confining pressures can be simulated indoors, and can apply difference on Rock And Soil after consolidation
The cyclic load of the different wave of amplitude different frequency is loaded secondary with simulating the pile body stress condition closer to actual condition
Number is big, up to up to ten thousand times, can obtain the data largely for analysis, finds to be likely encountered in Practical Project by model test
The problem of.
Detailed description of the invention
Fig. 1 is the structural representation of the experimental rig of pile-soil interaction when simulation of the present invention vertically recycles load-bearing
Figure.
Fig. 2 is of the present invention simulates when vertically recycling load-bearing outside the control cabinet of the experimental rig of pile-soil interaction
Figure.
Fig. 3 is of the present invention simulates when vertically recycling load-bearing inside the control cabinet of the experimental rig of pile-soil interaction
Figure.
Fig. 4 is pressure chamber's pipeline of the experimental rig of pile-soil interaction when simulation of the present invention vertically recycles load-bearing
Figure.
Fig. 5 is the Model Pile signal of the experimental rig of pile-soil interaction when simulation of the present invention vertically recycles load-bearing
Figure.
Fig. 6 is the software page of the experimental rig of pile-soil interaction when simulation of the present invention vertically recycles load-bearing
Figure.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figures 1 to 6, the experimental rig of pile-soil interaction when simulation of the present invention vertically recycles load-bearing,
Including main machine frame 35, pressure chamber 5, ground body Model 6, loading system 34, monitoring system, control cabinet and software systems circle
Face.Specific structure and connection relationship are as follows:
The main machine frame 35 includes main machine base 1, steel column 3 and cushion cap 21, and the intermediate region of the main machine base 1 is equipped with
Two line slide rails 2 parallel to each other are provided with pressure chamber's pallet 4 on line slide rail 2, and baffle is equipped on rear side of main machine base 1
15, it is provided with 4 steel columns 3 on main machine base 1 is bolted and be vertically fixed on main machine base 1, cushion cap 21 and steel column 3
The overall stability that ribbed stiffener increases it is set using welded connecting, between steel column 3 and cushion cap 21；
The pressure chamber 5 includes that pressure chamber base and pressure chamber are covered, and pressure chamber base is fixed on pressure chamber's pallet 4, is led to
It crosses bolt and pressure chamber can be covered and be fixed on the formation of pressure chamber's pallet 4 pressure chamber 5, pressure chamber base is provided with above ground sample
Water outlet 20 and pressurisation of pressure chambers mouth 30 below water outlet 19, ground sample are provided with pressure chamber's water inlet 30 above pressure chamber 5
With pressure chamber's exhaust outlet 18,5 whole body of pressure chamber is provided with liquid level nozzle 1 and liquid level nozzle 2, is provided with internal diameter above pressure chamber
The osculum of 10mm is used for the insertion of Model Pile 8, and fixation can be bolted with baffle 15 in pressure chamber's pallet 4.
The ground body Model includes ground sample 6, ground sample lower section permeable stone 16, ground sample top permeable stone
17, filter paper and latex film, the ground sample 6 are packed into latex film, are lined with filter paper and permeable stone 16, ground below ground sample
Filter paper and permeable stone 17 are lined with above sample.The ground sample 6 is the Rock And Soil that certain moisture content is configured in laboratory,
Ground sample is subjected to preconsolidation processing.
The loading system includes support rod 11,12 load plate 10 of roller screw, shaft coupling 13, servo motor 14, model
Stake 8, four support rods 11 are respectively and vertically fixed on main machine frame 3, and the roller screw 12 is mutually equal with support rod 11
Row, 10 both ends of load plate are placed in 11 one end of support rod and are placed in roller screw 12, and the shaft coupling 13 is located at roller screw 12
Surface, the servo motor 14 are placed in right above shaft coupling 13；The Model Pile 8 is by pressure sensor 9 and nut and adds
Support plate 10 is connected, and Model Pile 8 uses solid stainless steel material, and Model Pile 8 has flat stake end and tapered pile end two to open form respectively.
The loading system and main machine frame are fixed by assembly forms entirely dynamic stress model stake tester.
The monitoring system includes encoder 7, pressure sensor 9 and confining pressure sensor, and the encoder 7 is located at roller
Immediately below lead screw 12, the pressure sensor 9 is fixed on 10 lower section of load plate, and the confining pressure sensor is mounted on confining pressure controller
In 31.
The control cabinet is internally provided with line slot 33, includes confining pressure controller 31, servo motor 14, connection inside control cabinet
Several control routes of axis device 13 and pressure sensor 9, control cabinet two sides be respectively arranged with route hole 32 and confining pressure controller into
The mouth of a river 25 and confining pressure controller water outlet 26, control cabinet top are provided with start button 27, stop button 22, run indicator 23
And scram button 24.
The software system interface includes that axial loading/unloading rate, quiet load deflection, confining pressure add rate of debarkation, target confining pressure
The test parameters selection of value, sine wave, triangular wave, square wave, amplitude, frequency and vibration number, the composition energy of a variety of load forms
Enough to simulate operating condition more complicated in practice, after the completion of Rock And Soil confining pressure consolidation, input needs the load case exported, and click is opened
Test button beginning, data on-test are by Real-time Feedback and remain in computer.
A kind of test method that can simulate stake soil cyclic load, the specific steps are as follows:
1) by preparation soil sample sample preparation at the ground sample 6 of diameter 300mm high 400mm.
2) permeable stone 16 and filter paper are lined on pressure chamber's pallet 4 i.e. pressure chamber base.
3) by emulsion film a set of in pressure chamber base and banding rubber band.
4) put on and hold film bucket and by its banding, cover latex film top is counter on holding film bucket, with vacuum pump by latex film with
The gas extraction between film bucket is held, latex film is attached to and holds on film bucket.
5) ground sample 6 is fitted into latex film, filter paper and permeable stone 17 are placed with above ground sample 6 and place sample
Cap.
6) vacuum pump is closed, film bucket is held in dismounting.
7) pressure chamber is covered and predetermined position is hung in by boom hoisting, pass through spiral shell with the pressure chamber base on pressure chamber's pallet 4
Bolt fastens to form pressure chamber 5.
8) it is inserted into Model Pile 8 from pressure chamber's top open part, detects pressure chamber's opening and whether soil sample sample cap is right
Together, Model Pile 8 is extracted after having detected.
9) it is carried by pressure chamber's pallet 4, is slided into behind predetermined position by line slide rail 2 by pressure chamber's pallet 4 and baffle 15
It is connected and fixed.
10) Model Pile 8 is inserted into ground sample 6, is controlled by computer, the position for adjusting pressure sensor 9 makes itself and mould
The contact of 8 stake top of type stake, is tightened fixation by nut, Model Pile 8 is embedded in predetermined depth by load deflection.
11) the pressure chamber's water inlet 31 and pressure chamber's exhaust outlet 18 for opening 5 top of pressure chamber, by water above pressure chamber
Water inlet injection, observe liquid level tube water level lifting height, after exhaust outlet has water to gush out stop fill the water and tighten vent cap and
Water inlet cap.
12) confining pressure controller setting pressure chamber's hydraulic pressure is controlled by computer and reaches predetermined value.
13) after soil sample consolidation, driving servo motor 14 drives roller screw 12 by shaft coupling 13, roller screw 12
Sliding block drives 10 driving model stake of load plate, 8 pairs of 6 output pressure of ground sample tests.Wherein, output pressure is by pressure sensor 9
It measures and feedback record, vibration frequency and amplitude is by the measurement of encoder 7 and feedback record.
Pile-soil interaction process when dynamic stress model stake tester simulation vertically recycles load-bearing, can simulate single pile by perpendicular
Its bearer properties under to load, loading method multipotency enough simulate Various Complex operating condition, have certain scientific research value.
It is noted that, for those skilled in the art, without departing from the principles of the invention,
It can also make and be suitably modified, these improvement also should be regarded as protection scope of the present invention.
Claims (7)
- The experimental rig of pile-soil interaction when 1. a kind of simulation vertically recycles load-bearing, including main machine frame, pressure chamber, Rock And Soil Model, loading system, monitoring system, control cabinet and software systems, which is characterized in that specific structure and connection relationship are as follows:The main machine frame includes main machine base, steel column and cushion cap, and the intermediate region of the main machine base is mutually equal equipped with two Capable line slide rail is provided with pressure chamber's pallet on line slide rail, and pressure chamber's pallet can be moved by line slide rail, Baffle is equipped on rear side of main machine base, main machine base is equipped with steel column and is vertically fixed on main machine base, main machine base and steel column Fixation, cushion cap and steel column is bolted using welded connecting；The pressure chamber includes pressure chamber base and pressure chamber's cover, and pressure chamber base is fixed on pressure chamber's pallet, passes through bolt Pressure chamber's cover is fixed on pressure chamber's pallet and forms pressure chamber, pressure chamber base is equipped with water outlet, ground above ground sample Water outlet and pressurisation of pressure chambers mouth below sample, pressure chamber top are provided with pressure chamber's water inlet and pressure chamber's exhaust outlet, pressure There are two liquid level nozzle, pressure chamber's pallet and baffles, and fixation is bolted for the setting of the room whole body；The ground body Model includes ground sample, permeable stone, filter paper and latex film, and the ground sample is packed into latex film, Pad puts filter paper and permeable stone below ground sample, and pad puts filter paper and permeable stone above ground sample,The loading system includes support rod, roller screw, load plate, shaft coupling, servo motor and Model Pile, the support Bar is vertically fixed on main machine frame, and roller screw is parallel to each other with support rod, and the load plate is isosceles triangle plate, load Connected circular hole is provided in three angle points of plate, load plate both ends circular hole is placed in support rod, and load plate one end circular hole is placed in roller silk Thick stick, shaft coupling are located at right above roller screw, and servo motor is placed in right above shaft coupling, and Model Pile passes through pressure sensor and spiral shell Mother is connected with load plate；The monitoring system includes encoder, pressure sensor and confining pressure sensor, and the encoder is being located at roller screw just Lower section, pressure sensor are fixed below load plate, and confining pressure sensor is mounted in confining pressure controller；The control cabinet includes several controls of the confining pressure controller and servo motor, the shaft coupling and pressure sensor Route, control cabinet two sides are respectively arranged with route hole and confining pressure controller water inlet and confining pressure controller water outlet, control cabinet top Portion is provided with start button, stop button, run indicator and scram button,The software systems are the application program voluntarily programmed.
- 2. the experimental rig of pile-soil interaction, feature exist when a kind of simulation vertically recycles load-bearing according to claim 1 In the pressure chamber and pressure chamber's pallet are bolted to form the pressure chamber that upper end opening only has diameter 10mm, and upper end is opened Mouth is used for the insertion of Model Pile, and opening is provided with the waterproof washer of internal diameter 10mm, can pass through confining pressure controller in pressure chamber The water pressure for applying maximum confining pressure 1Mpa, is adjusted range hydraulic pressure greatly and error is less than 1kPa, can effectively simulate difference and bury The consolidation situation of deep lower Rock And Soil.
- 3. the experimental rig of pile-soil interaction, feature exist when a kind of simulation vertically recycles load-bearing according to claim 1 In, the ground specimen size be diameter x high=300mmx400mm, latex film having a size of internal diameter x high x thickness= 300mmx500mmx3mm, ground sample separate Rock And Soil and water pressure by latex film, Neng Gouyou in latex film Effect carries out confining pressure load to Rock And Soil.
- 4. the experimental rig of pile-soil interaction, feature exist when a kind of simulation vertically recycles load-bearing according to claim 1 In the loading system can apply the dynamic displacement of the maximum Static Correction and maximum amplitude 5cm of 10cm, and dynamically load can export Sine wave, triangular wave and square wave, loading frequency are controllable to 0.01Hz~1Hz, and vertical load provides a variety of load shapes Formula can simulate realistically the possible stress condition of Practical Project pile foundation plinth.
- 5. the experimental rig of pile-soil interaction, feature exist when a kind of simulation vertically recycles load-bearing according to claim 1 In the Model Pile uses solid stainless piling bar, and the long 0~40cm of range of driven pile, stake diameter 1cm, flat stake is respectively adopted in stake end Two kinds of forms of conical pile top that point and cone angle are 60 degree, stake top are provided with high 1cm, and the pile cover of diameter 2cm is used to pass with pressure Sensor is connected and fixed.
- 6. the experimental rig of pile-soil interaction, feature exist when a kind of simulation vertically recycles load-bearing according to claim 1 In the control cabinet is connected by data line with computer, carries out practical manipulation to tester by the software voluntarily programmed, in real time Read data.
- The test method of pile-soil interaction when 7. a kind of simulation vertically recycles load-bearing, which is characterized in that concrete operation step is such as Under:1) will preparation soil sample sample preparation at diameter 300mm high 400mm ground sample,2) pad puts permeable stone and filter paper in pressure chamber's pallet, that is, pressure chamber base,3) by emulsion film a set of in pressure chamber base and banding rubber band,4) it puts on and holds film bucket and by its banding, cover latex film top is counter on holding film bucket, by latex film and hold film with vacuum pump Gas extraction between bucket, is attached to latex film and holds on film bucket,5) ground sample is fitted into latex film, puts filter paper and permeable stone above ground sample and place sample cap,6) vacuum pump is closed, film bucket is held in dismounting,7) pressure chamber is covered and predetermined position is hung in by boom hoisting, be fastened by bolts with the pressure chamber base on pressure chamber's pallet Pressure chamber is formed,8) it is inserted into Model Pile from pressure chamber's top open part, whether detection pressure chamber's opening is aligned with soil sample sample cap, examines Model Pile is extracted after having surveyed,9) it is carried by pressure chamber's pallet, is slided into behind predetermined position by line slide rail and be connected and fixed pressure chamber's pallet with baffle,10) Model Pile is inserted into ground sample, is controlled by computer, the position for adjusting pressure sensor makes itself and model stake top Contact, is tightened fixation by nut, and Model Pile is embedded in predetermined depth by load deflection,11) the pressure chamber's water inlet and pressure chamber's exhaust outlet above pressure chamber are opened, water inlet is infused above pressure chamber by water Enter, observe liquid level tube water level lifting height, stops filling the water and tightening vent cap and water inlet cap after exhaust outlet has water to gush out,12) confining pressure controller setting pressure chamber's hydraulic pressure is controlled by computer and reaches predetermined value,13) after soil sample consolidation, driving servo motor drives roller screw by shaft coupling, and the sliding block of roller screw drives load Ground sample output pressure is tested in the stake of plate driving model, wherein output pressure is by pressure sensor measurement and feedback record, vibration Dynamic frequency and amplitude are by encoder measurement and feedback record.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810876677.XA CN109187204B (en) | 2018-08-03 | 2018-08-03 | Test device for simulating pile-soil interaction during vertical cyclic loading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810876677.XA CN109187204B (en) | 2018-08-03 | 2018-08-03 | Test device for simulating pile-soil interaction during vertical cyclic loading |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109187204A true CN109187204A (en) | 2019-01-11 |
| CN109187204B CN109187204B (en) | 2020-12-08 |
Family
ID=64920046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810876677.XA Active CN109187204B (en) | 2018-08-03 | 2018-08-03 | Test device for simulating pile-soil interaction during vertical cyclic loading |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109187204B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655342A (en) * | 2019-01-29 | 2019-04-19 | 西南交通大学 | A kind of molecule sample shattering process research experiment device and its experimental method |
| CN110426295A (en) * | 2019-07-11 | 2019-11-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Contact surface shears three axis test devices and method |
| CN111157366A (en) * | 2020-01-20 | 2020-05-15 | 檀俊坤 | Dynamic test equipment for mechanical properties of pile soil |
| CN114166613A (en) * | 2021-12-16 | 2022-03-11 | 广西大学 | Device and method for quickly manufacturing fractured rock samples in pressure environment |
| CN114737622A (en) * | 2022-04-12 | 2022-07-12 | 中电建华东勘测设计院(深圳)有限公司 | Device and method for applying plane cyclic load and vertical load to pile structure and keeping pile top rotating freely |
| CN116499638A (en) * | 2023-04-27 | 2023-07-28 | 浙江大学 | Soil pressure sensor particle sensitivity testing system and testing method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007035946A2 (en) * | 2005-09-22 | 2007-03-29 | University Of Florida Research Foundation, Inc. | Apparatus for estimating the rate of erosion and methods of using same |
| CN103822875A (en) * | 2014-03-05 | 2014-05-28 | 河海大学 | Device and method for testing energy pile-soil contact surface frictional force |
| CN104074210A (en) * | 2014-07-15 | 2014-10-01 | 中铁第一勘察设计院集团有限公司 | Pile foundation side friction indoor testing device and testing method thereof |
| CN105604106A (en) * | 2016-03-10 | 2016-05-25 | 清华大学 | Ocean engineering pile foundation experiment simulation apparatus and method under long-term horizontal cyclic loading |
| CN106245691A (en) * | 2016-09-28 | 2016-12-21 | 中国科学院武汉岩土力学研究所 | Calcareous sand sound load Multifunctional pile base model test apparatus |
| CN106592655A (en) * | 2016-12-30 | 2017-04-26 | 太原理工大学 | Tubular pile sinking simulation test device and method under gradient confining pressure |
| CN107100210A (en) * | 2017-05-04 | 2017-08-29 | 武汉工程大学 | The pile-soil interaction mechanical behavior test system of controllable ambient stress |
| CN206902773U (en) * | 2017-04-28 | 2018-01-19 | 浙江科技学院 | The test device of single-pile vertical orientation static test under the conditions of stable artesian water |
| CN107621410A (en) * | 2017-08-14 | 2018-01-23 | 浙江大学宁波理工学院 | A kind of stake Soil Interface pilot model apparatus for considering temperature action |
| CN108035387A (en) * | 2017-12-28 | 2018-05-15 | 浙江大学 | Controllable confined pressure is used for the experimental provision for simulating closing pile installation process |
-
2018
- 2018-08-03 CN CN201810876677.XA patent/CN109187204B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007035946A2 (en) * | 2005-09-22 | 2007-03-29 | University Of Florida Research Foundation, Inc. | Apparatus for estimating the rate of erosion and methods of using same |
| CN103822875A (en) * | 2014-03-05 | 2014-05-28 | 河海大学 | Device and method for testing energy pile-soil contact surface frictional force |
| CN104074210A (en) * | 2014-07-15 | 2014-10-01 | 中铁第一勘察设计院集团有限公司 | Pile foundation side friction indoor testing device and testing method thereof |
| CN105604106A (en) * | 2016-03-10 | 2016-05-25 | 清华大学 | Ocean engineering pile foundation experiment simulation apparatus and method under long-term horizontal cyclic loading |
| CN106245691A (en) * | 2016-09-28 | 2016-12-21 | 中国科学院武汉岩土力学研究所 | Calcareous sand sound load Multifunctional pile base model test apparatus |
| CN106592655A (en) * | 2016-12-30 | 2017-04-26 | 太原理工大学 | Tubular pile sinking simulation test device and method under gradient confining pressure |
| CN206902773U (en) * | 2017-04-28 | 2018-01-19 | 浙江科技学院 | The test device of single-pile vertical orientation static test under the conditions of stable artesian water |
| CN107100210A (en) * | 2017-05-04 | 2017-08-29 | 武汉工程大学 | The pile-soil interaction mechanical behavior test system of controllable ambient stress |
| CN107621410A (en) * | 2017-08-14 | 2018-01-23 | 浙江大学宁波理工学院 | A kind of stake Soil Interface pilot model apparatus for considering temperature action |
| CN108035387A (en) * | 2017-12-28 | 2018-05-15 | 浙江大学 | Controllable confined pressure is used for the experimental provision for simulating closing pile installation process |
Non-Patent Citations (3)
| Title |
|---|
| MAOSONG HUANG ET AL.: "Axial capacitydegradationofsinglepilesinsoftclayundercyclicloading", 《SOILS ANDFOUNDATIONS》 * |
| 陈仁朋等: "刚性单桩竖向循环加载模型试验研究", 《岩土工程学报》 * |
| 黄勇等: "透水管桩的群桩沉桩室内模型试验研究", 《河北工程大学学报(自然科学版)》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655342A (en) * | 2019-01-29 | 2019-04-19 | 西南交通大学 | A kind of molecule sample shattering process research experiment device and its experimental method |
| CN109655342B (en) * | 2019-01-29 | 2021-04-06 | 西南交通大学 | Experimental device and experimental method for researching crushing process of micro-particle sample |
| CN110426295A (en) * | 2019-07-11 | 2019-11-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Contact surface shears three axis test devices and method |
| CN111157366A (en) * | 2020-01-20 | 2020-05-15 | 檀俊坤 | Dynamic test equipment for mechanical properties of pile soil |
| CN114166613A (en) * | 2021-12-16 | 2022-03-11 | 广西大学 | Device and method for quickly manufacturing fractured rock samples in pressure environment |
| CN114737622A (en) * | 2022-04-12 | 2022-07-12 | 中电建华东勘测设计院(深圳)有限公司 | Device and method for applying plane cyclic load and vertical load to pile structure and keeping pile top rotating freely |
| CN114737622B (en) * | 2022-04-12 | 2023-11-21 | 中电建华东勘测设计院(深圳)有限公司 | Device and method for applying plane cyclic load and vertical load to pile structure and keeping pile top free rotation |
| CN116499638A (en) * | 2023-04-27 | 2023-07-28 | 浙江大学 | Soil pressure sensor particle sensitivity testing system and testing method |
| CN116499638B (en) * | 2023-04-27 | 2023-10-17 | 浙江大学 | Soil pressure sensor particle sensitivity testing system and testing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109187204B (en) | 2020-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109187204A (en) | A kind of experimental rig for simulating pile-soil interaction when vertically recycling load-bearing | |
| CN102707034B (en) | Indoor model testing device and testing method employing air-pressure splitting vacuum preloading method | |
| CN103884831B (en) | A kind of roadbed side slope and underground works multifunction three-dimensional model test platform | |
| CN107012896B (en) | A kind of Multifunctional pile base model assay systems and its assembling and test method | |
| CN101832993B (en) | Semi-module test box for dynamic compaction reinforced foundation model test | |
| CN104569347B (en) | The simulation of Rock And Soil catastrophe and pick-up unit | |
| CN206189478U (en) | Horizontal pile foundation single pile horizontal load test device | |
| CN105525636B (en) | Border on the sea foundation ditch dynamic response model experimental rig under simulated waves load action | |
| CN203881756U (en) | Multifunctional three-dimensional model testing platform for roadbed slopes and underground engineering | |
| CN105716958B (en) | Simulate the foundation model experimental rig of artesian head lifting | |
| CN105675846B (en) | Phreatic table and the excavation of foundation pit model test apparatus of artesian head collaboration lifting | |
| CN107655760A (en) | Geomembrane bursting simulation test device and test method on particle bed course | |
| CN106836317A (en) | A kind of pile sinking model test apparatus for considering soil plug effect and its application | |
| CN108593513A (en) | A kind of experimental rig and method for simulating the dynamic artesian water effect soil body | |
| CN109001098A (en) | A kind of instantaneous Penetration Signature tester of soil and soil infiltration characteristics calculation method | |
| CN211113788U (en) | Simulation device for bulging deformation of long and narrow foundation pit under bias pressure and seepage conditions | |
| CN104990659B (en) | A kind of swelled ground area slurry balance shield tunnel tunnel face expansive force experimental rig | |
| CN106337446A (en) | Indoor test device for pulling resistance of pile foundation and test method of indoor test device | |
| CN202471557U (en) | Multifunctional sand column water vapor seepage tester | |
| CN107271297A (en) | A kind of shearing experiment instrument in situ for being used to determine saturation loess mud stone contact surface | |
| CN204825999U (en) | Vertical resistance to plucking static test device of single pile | |
| CN104818687B (en) | Tailings Dam dam break analog simulation experimental device under simulation dynamic load function | |
| CN110424475B (en) | Simulator for bulging deformation of long and narrow foundation pit under bias and seepage conditions | |
| CN108267370A (en) | A kind of one-dimensional cylinder test device and method for simulating the kinetic head boundary effect soil body | |
| CN110528602A (en) | Earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |