CN205484324U - Concrete joint experimental apparatus of infiltration - Google Patents
Concrete joint experimental apparatus of infiltration Download PDFInfo
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- CN205484324U CN205484324U CN201521112833.3U CN201521112833U CN205484324U CN 205484324 U CN205484324 U CN 205484324U CN 201521112833 U CN201521112833 U CN 201521112833U CN 205484324 U CN205484324 U CN 205484324U
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Abstract
The utility model relates to a concrete joint experimental apparatus of infiltration, include: base, pressure chamber, pressurizing assembly, infiltration subassembly and numerical value collection system. The pressure chamber is fixed on the base, slide and be provided with the pressurization upper cover in the top of pressure chamber, pressurizing assembly and pressurization cover connection can apply set pressure to the pressurization upper cover. The infiltration subassembly includes: warning pipe, control tube and many pressure -measuring pipes, the pressure chamber upper end is provided with the gap, and the water piping connection gap overflows, the control tube run -on mouth of a river, the pressure chamber is provided with a plurality of piezometer orifices along vertical direction, and a plurality of piezometer orifices are connected respectively to many pressure -measuring pipes. Numerical value collection system include: pressure transmitter, displacement sensor and the control unit, the control unit and pressure transmitter and displacement sensor are connected to accept to press force information and displacement information. Coarse grain soil consolidation infiltration was jointly tested under this concrete joint experimental apparatus of infiltration can carry out different consolidation degrees, the large granule soil true stress state of the different buried depths of accurate simulation in the laboratory.
Description
Technical field
This utility model relates to Geotechnical Engineering field, particularly to one consolidation infiltration Collaborative experiment
Device.
Background technology
Along with the development of national economy, in the construction that Maritime Silk Road is like a raging fire, traditional consolidation
Infiltration soil test equipment provides effective skill far to coastal engineering and engineering on an island and hydraulic engineering
Art parameter.The achievement of routine consolidation test is can meet general requirement, but traditional consolidometer is not
The permeance property of sample can be evaluated.Conventional permeability test do not have axially loaded under conditions of complete,
Being only applicable to the soil sample situation on earth's surface, simulate deep soil (sand) sample with it and test, that measures oozes
Coefficient does not conforms to the actual conditions thoroughly, and owing to deep soil is by crustal stress effect, the hole between soil and soil is less,
Seepage channel is little, and therefore the infiltration coefficient of infiltration layer soil is little.
The numerous studies of Chinese scholars show that in test, barrel bore is more than the 10 of sample maximum particle diameter
Times time, could well eliminate the dimensional effect of granule.These all can not meet and relate to coarse-grained soil, calcium
The requirement of the engineerings such as matter sand, the rock-fill dams of coral sand, coastal bank protection project and island.Due to sample chi
Very little greatly, the axial compressive force of needs is big, and existing pressure structure is difficult to be applied to corresponding pressure.
When bulky grain soil (sand) is tested by consolidation infiltration associating instrument of the prior art, can deposit
In bigger dimensional effect, there is bigger error, it is impossible to bulky grain soil (sand) of accurate simulation different buried depth
True stress state.
Utility model content
A kind of consolidation infiltration Collaborative experiment device that the application provides, solves or part solves existing
When bulky grain soil is tested by the consolidation infiltration associating instrument in technology, bigger size effect can be there is
Should, there is bigger error, it is impossible to the true stress state of the bulky grain soil of accurate simulation different buried depth
Technical problem, it is achieved that be possible not only to carry out routine consolidation test, conventional permeability test, fine grained solid
Knot infiltration Combined Trials, and coarse-grained soil consolidation infiltration under the different degree of consolidation can be carried out and combine examination
Test, the technique effect of the bulky grain soil true stress state of accurate simulation different buried depth in laboratory.
This application provides a kind of consolidation infiltration Collaborative experiment device, including:
Base, offers discharge outlet and a plurality of first groove, and described a plurality of first groove connects described row
The mouth of a river；
Pressure chamber, is fixed on described base；Described pressure chamber is internal is cavity, and top slide is arranged
There is pressurization upper cover；Described pressurization upper cover offers water inlet and a plurality of second groove, and described a plurality of second
Groove connects described water inlet；
Pressure-applying unit, is connected with described pressurization upper cover, can apply to set pressure to described pressurization upper cover；
Filtration module, described filtration module includes: overflow pipe, regulation pipe and many pressure-measuring pipes；Described
Pressure chamber upper end is provided with gap, and described overflow pipe connects described gap；Described regulation pipe connects
Described discharge outlet；Described pressure chamber is vertically provided with multiple pressure tap, described many pressure-measuring pipes
Connect the plurality of pressure tap respectively；
Numerical value acquisition system, described numerical value acquisition system includes: pressure transmitter, displacement transducer and
Control unit；Described pressure transmitter is for detecting the pressure that soil sample is applied by described pressurization upper cover；Institute
Displacement sensors is for detecting the shift length of described pressurization upper cover；Described control unit and described pressure
Power transmitter and institute's displacement sensors connect；
Wherein, when carrying out consolidating permeability test, described soil sample is filled in described cavity.
As preferably, described pressure chamber is the cylinder of hollow-core construction；
Described pressurization upper cover is Circular plate structure, and the circumference of described pressurization upper cover offers first annular groove,
It is provided with the first sealing ring in described first annular groove；
Described cylinder is bolted to connection with described base；The position of the corresponding described cylinder of described base
Put and offer the second cannelure, in described second cannelure, be provided with the second sealing ring；
Wherein, described first sealing ring and the second sealing ring are by the cavities seals within described pressure chamber.
As preferably, described water inlet is positioned at the center of described plectane；
Described a plurality of second groove includes: the annular groove of a plurality of concyclic heart and the bar of a plurality of radial arrangement
Connected in star；Described annular groove is connected with described water inlet by described strip groove；
Described discharge outlet is positioned at the home position of described second cannelure；
Described a plurality of first groove includes: the annular groove of a plurality of concyclic heart and the bar of a plurality of radial arrangement
Connected in star；Described annular groove is connected with described discharge outlet by described strip groove.
As preferably, described pressure-applying unit includes:
Primary lever, one end is fixed on the ground by the first column；
Second lever, is fixed on the ground by the second column；Described second lever is by hinge bar even
Connect the other end of described primary lever；
Spiral jointing, top connects described primary lever, and junction point is near described first column；
The bottom of described spiral jointing is threaded connection with described pressurization upper cover, by turning described spiral shell
Rotation jointing makes the most described pressure chamber sliding of described pressurization upper cover；
Pressurization pallet, hangs the one end being located at described second lever；
Counterweight pallet, hangs the other end being located at described second lever；
Wherein, described second lever is positioned at described pressurization pallet with the junction point of described second column and joins
Between weight pallet, near described counterweight pallet；Described hinge bar and the junction point position of described second lever
Between described second column and described pressurization pallet, near described second column.
As preferably, described Collaborative experiment device also includes:
Two pieces of metal perforated plates, are separately positioned between described soil sample and described base and described pressurization upper cover
And between described soil sample；
Filter screen, is arranged between described soil sample and described base, is positioned at the top of described metal perforated plate；
Wherein, the aperture of described metal perforated plate is more than the aperture of described filter screen.
As preferably, described Collaborative experiment device includes 3 described pressure-measuring pipes；
Described pressure chamber is vertically provided with 3 pressure taps, between described 3 pressure taps vertically wait
Away from arrangement；Described 3 pressure-measuring pipes connect described 3 pressure taps respectively.
As preferably, described Collaborative experiment device also includes:
Water supply bottle, is fixed on the top of described pressure chamber；
Feed pipe, one end is connected with described water supply bottle, to provide experimental water；
Tongs, is arranged on described feed pipe.
As preferably, described Collaborative experiment device also includes:
Temperature test parts, are arranged in described pressurization and cover；
Graduated cylinder, is arranged on described base, with the metering seepage flow water yield by described soil sample；
As preferably, the top center of described pressurization upper cover is provided with iron plate, and institute's displacement sensors is solid
It is scheduled on described iron plate；
Described control unit includes: dynamic test system and computer；Described dynamic test system and institute
State pressure transmitter, institute's displacement sensors and described computer to connect.
As preferably, described Collaborative experiment device also includes:
Sliding support, described sliding support includes support bar and horizon bar；Described support bar is fixed on institute
State on base；Described horizon bar is slidably connected with described support bar；
Described regulation pipe hangs and is located on described horizon bar；
Wherein, by the described horizon bar that slides, to change the vertical height of described regulation pipe.
One or more technical schemes provided herein, at least have the following technical effect that or advantage:
Owing to have employed the guarantee uncrossed base of seepage velocity, pressure chamber, pressure-applying unit, infiltration
The Collaborative experiment device of assembly and numerical value acquisition system, can rationally carry out stress loading and couple examination with infiltration
Test, in laboratory, buried bulky grain soil is carried out simulation test accurately, buried for further investigation
The infiltration of bulky grain soil, consolidation coupling provide technology and ensure and support, will effectively promote this
The deep development of item research.So, consolidation infiltration associating instrument pair of the prior art is efficiently solved
When bulky grain soil is tested, bigger dimensional effect can be there is, there is bigger error, it is impossible to accurately
The technical problem of true stress state of the bulky grain soil of simulation different buried depth, it is achieved that be possible not only to into
Row routine consolidation test, conventional permeability test, fine grained consolidation infiltration Combined Trials, and can enter
Coarse-grained soil consolidation infiltration Combined Trials under the different degree of consolidation of row, in laboratory, accurate simulation is different
The technique effect of the bulky grain soil true stress state of buried depth.
Accompanying drawing explanation
The configuration diagram of the consolidation infiltration Collaborative experiment device that Fig. 1 provides for this utility model embodiment；
Fig. 2 is the configuration diagram of pressure-applying unit in Fig. 1；
Fig. 3 is the configuration diagram of upper cover of pressurizeing in Fig. 1；
Fig. 4 is the cross-sectional schematic of upper cover of pressurizeing in Fig. 1；
Fig. 5 is the configuration diagram of base in Fig. 1；
Fig. 6 is the cross-sectional schematic of base in Fig. 1；
Fig. 7 is the configuration diagram of filter screen in Fig. 1.
(in diagram each label represent parts be followed successively by: 1 base, 2 filter screens, 3 metal perforated plates, 4
Pressure chamber, 5 pressure-measuring pipes, 6 support bars, 7 regulation pipe, 8 pressurization upper covers, 9 displacement transducers, 10
Temperature test parts, 11 tongses, 12 feed pipes, 13 water supply bottles, 14 measuring cups, 15 gaps,
16 soil samples, 17 sealing rings, 18 bolts, 19 second levers, 20 spiral jointings, 21 pressurization torr
Dish, 22 overflow pipes, 23 horizon bars, 24 pressure transmitters, 25 dynamic test systems, 26 computers,
27 counterweight pallets, 28 water inlets, 29 discharge outlet)
Detailed description of the invention
A kind of consolidation infiltration Collaborative experiment device that the embodiment of the present application provides, solves or part solves
When bulky grain soil is tested by consolidation infiltration associating instrument of the prior art, can exist bigger
, there is bigger error in dimensional effect, it is impossible to the true stress of the bulky grain soil of accurate simulation different buried depth
The technical problem of state, by using base, pressure chamber, pressure-applying unit, filtration module and numerical value to adopt
The Collaborative experiment device that collecting system is constituted, it is achieved that be possible not only to carry out routine consolidation test, routine is oozed
Test thoroughly, fine grained consolidation infiltration Combined Trials, and coarse granule under the different degree of consolidation can be carried out
Soil consolidation infiltration Combined Trials, the bulky grain soil true stress of accurate simulation different buried depth in laboratory
The technique effect of state.
Seeing accompanying drawing 1, the embodiment of the present application provides a kind of consolidation infiltration Collaborative experiment device, including:
Base 1, pressure chamber 4, pressure-applying unit, filtration module and numerical value acquisition system.
Pressure chamber 4 is fixed on base 1；Base 1 offers discharge outlet 29 and a plurality of first groove,
A plurality of first groove communicated drainage mouth 29；Pressure chamber 4 is internal is cavity, when carrying out consolidating permeability test
Time, soil sample 16 is filled in cavity.The top slide of pressure chamber 4 is provided with pressurization upper cover 8；Add
Press lid 8 and offer water inlet 28 and a plurality of second groove, a plurality of second groove connection water inlet 28；
Base 1 is offered the first groove, had both defined plurality of passages, during for ensureing water penetration to base 1
Do not increase penetration length, it is ensured that can accurately calculate the density of soil sample 16.
Pressure-applying unit is connected with pressurization upper cover 8, can apply to set pressure to pressurization upper cover 8.
Filtration module includes: overflow pipe 22, regulation pipe 7 and many pressure-measuring pipes 5；Pressure chamber 4 upper end
Being provided with gap 15, overflow pipe 22 connects gap 15；Regulation pipe 7 connects discharge outlet 29；Pressure
Power room 4 is vertically provided with multiple pressure tap, and many pressure-measuring pipes 5 connect multiple pressure tap respectively.
Numerical value acquisition system includes: pressure transmitter 24, displacement transducer 9 and control unit；Pressure
Transmitter 24 is arranged between pressurization upper cover 8 and metal perforated plate 3, is used for detecting pressurization upper cover 8 to soil
The pressure that sample 16 applies, generates pressure information；Displacement transducer 9 is for detecting the position of pressurization upper cover 8
Move distance, generate displacement information；Control unit is connected with pressure transmitter 24 and displacement transducer 9,
To accept pressure information and displacement information.
This Collaborative experiment device is possible not only to carry out routine consolidation test, conventional permeability test, fine grained
Consolidation infiltration Combined Trials, and bulky grain soil consolidation infiltration associating under the different degree of consolidation can be carried out
Test, it is possible to same soil sample 16 is had the compression test under the conditions of lateral spacing, creep test, and energy
It is simulated consolidation test at ebb tide.This apparatus structure is simple, definite principle, easily operated, smart
Degree is high, good stability, requires relatively low to installing tester.
Further, seeing accompanying drawing 1, pressure chamber 4 is the cylinder of hollow-core construction；Pressurization upper cover 8 is
Circular plate structure, the circumference of pressurization upper cover 8 offers first annular groove, is provided with in first annular groove
First sealing ring；Cylinder is connected by bolt 18 is fixing with base 1；The position of the corresponding cylinder of base 1
Offer the second cannelure, in the second cannelure, be provided with the second sealing ring；Wherein, the first sealing ring
And second sealing ring by the cavities seals within pressure chamber 4.
Further, seeing accompanying drawing 3 and 4, water inlet 28 is positioned at the center of plectane；A plurality of
Two grooves include: the annular groove of a plurality of concyclic heart and the strip groove of a plurality of radial arrangement；Annular is recessed
Groove is connected with water inlet by strip groove.Seeing accompanying drawing 5 and 6, discharge outlet 29 is positioned at the second annular
The home position of groove；A plurality of first groove includes: the annular groove of a plurality of concyclic heart and a plurality of radial direction cloth
The strip groove put；Annular groove is connected with discharge outlet 29 by strip groove.
Further, seeing accompanying drawing 2, pressure-applying unit includes: primary lever, second lever 19, spiral shell
Rotation jointing 20, pressurization pallet 21 and counterweight pallet 27.One end of primary lever is stood by first
Post fixes on the ground；Second lever 19 is fixed on the ground by the second column；Second lever 19
The other end of primary lever is connected by hinge bar；The top of spiral jointing 20 connects one-level thick stick
Bar, junction point is near the first column；Screw thread is passed through with pressurization upper cover 8 in the bottom of spiral jointing 20
Connect, make room 4 sliding of pressurization upper cover 8 relative pressure by turning spiral jointing 20；Pressurization torr
Dish 21 hangs the one end being located at second lever 19；Counterweight pallet 27 hangs another that be located at second lever 19
End；Pressurization upper cover 8 for threadeding, can adjust connection height with spiral jointing 20, to adjust
In joint pressure-applying unit, primary lever is parallel with second lever 19.
Wherein, the junction point of second lever 19 and the second column is positioned at pressurization pallet 21 and counterweight pallet
Between 27, near counterweight pallet 27；Hinge bar is positioned at the second column with the junction point of second lever 19
And between pressurization pallet 21, near the second column.Counterweight pallet 27 is for placing weights,
With balance primary lever, second lever 19, pressurization pallet 21 and the frictional force of pressure-applying unit, improve
Pressurization precision.This pressure-applying unit is the second lever structure of 30 times, and this structure has greatly saved space,
And high multiplying lever can be produced, maximum can provide 7200kg pressure, and this pressure-applying unit is simple to operation.
Further, seeing accompanying drawing 1 and 7, this Collaborative experiment device also includes: two pieces of metal perforated plates 3
And filter screen 2.Two pieces of metal perforated plates 3 are separately positioned between soil sample 16 and base 1 and pressurize upper cover 8
And between soil sample 16；Filter screen 2 is arranged between soil sample 16 and base 1, is positioned at metal perforated plate 3
Top, structure sees accompanying drawing 7；Wherein, the aperture of metal perforated plate 3 is more than the aperture of filter screen 2.
Pressure owing to applying is big, and soil sample 16 size is big, is easier to occur that stress is concentrated, and considers
Saving, the principle of aspect, so permeable stone can not be used, therefore consider that design metal perforated plate 3 replaces
Permeable stone.Metal perforated plate 3 is to prevent soil sample 16 filler metal base drain passage, hinders seepage velocity.
Testing crew when arranging effective short form test of metal perforated plate 3 determines specimen height and water penetration simultaneously
Highly.Effectively reduce test error, it is ensured that test accuracy.Owing to told cylindrical base 1 center sets
There is opening big and passage is many, for ensureing that rigidity reaches requirement and devises filter screen 2.
Further, seeing accompanying drawing 1, Collaborative experiment device includes 3 pressure-measuring pipes 5；Pressure chamber 4
Vertically being provided with 3 pressure taps, 3 pressure taps are the most equidistantly arranged；3 pressure-measuring pipes 5
Connect 3 pressure taps respectively.
Further, seeing accompanying drawing 1, Collaborative experiment device also includes: water supply bottle 13, feed pipe 12
And tongs 11.Water supply bottle 13 is fixed on the top of pressure chamber 4；One end of feed pipe 12 and water supply
Bottle 13 connects, to provide experimental water；Tongs 11 is arranged on feed pipe 12.
Further, Collaborative experiment device also includes: temperature test parts 10 and graduated cylinder 14.Temperature
Test component 10 is arranged on pressurization upper cover 8, as preferably, selects thermometer.Graduated cylinder 14 is arranged
On base 1, with the metering seepage flow water yield by soil sample 16.
Further, the top center of pressurization upper cover 8 is provided with iron plate, and displacement transducer 9 is fixed on
On iron plate；There is an iron plate on pressurization upper cover 8, be used for placing displacement transducer 9, calculate test
Consolidation height, because iron plate is connected with pressurization upper cover 8 center, so the number of displacement transducer 9 detection
According to the most accurate.Control unit includes: dynamic test system 25 and computer 26；Dynamic test system
System 25 is connected with pressure transmitter 24, displacement transducer 9 and computer 26.
Further, this Collaborative experiment device also includes: sliding support, and sliding support includes support bar
6 and horizon bar 23；Support bar 6 is fixed on base 1；Horizon bar 23 is slidably connected with support bar 6；
Regulation pipe 7 hangs and is located on horizon bar 23；Wherein, by slip horizon bar 23, to change regulation pipe 7
Vertical height.
Consolidation infiltration Collaborative experiment device the application provided below by operation principle and experimental procedure
Structure and operation characteristic be described in detail:
Operation principle: this device belongs to constant head osmosis system, is laminar according to permeating current in soil
Following Darcy's law v=ki during state, operationally, soil sample 16, by axial stress, ensures it to instrument simultaneously
The current having certain head difference pass through, and pass through the infiltration capacity of soil sample 16 in recording certain a period of time.This is solid
Based on clone system is ether sand base single shaft consolidation theory.Due to external load function, water and air is from hole
Gap is extruded, and between the skeleton particle of soil, mutual jam-packed, causes soil body compression, in record infiltration capacity
Numerical value acquisition system collect and process deflection simultaneously.When assembling instrument, prevent from leaking by sealing ring,
Gas leakage, by metallic cylinder coating butter or vaseline etc. (lubricant) reduce pressurization upper cover 8 with
The friction of metallic cylinder inwall.Ensure that seepage channel is unimpeded by metal perforated plate 3, and can effectively control
Sample density.
Apply xial feed by pressure-applying unit to soil sample, carry out saturated bulky grain soil consolidation test, logical
Cross dynamic test system 25 and gather axial force and sample settling amount；Pressure-applying unit applies axle to soil sample 16
After load, under the different degrees of consolidation, provided by water supply bottle 13 and stablize head difference, then throughput
The seepage discharge remembering each soil sample 16 height surveyed by cylinder 14, completes consolidation infiltration Combined Trials.
Below the soil sample 16 of diameter 300mm, highly 300mm, the largest particles particle diameter 30mm is entered
Row consolidation infiltration Collaborative experiment, experimental procedure includes:
S1, the spiral jointing 20 connected on pressurization upper cover 8 and pressure-applying unit.Base 1 and pressure
Power room 4 fixes, and checks at each pipe joint, whether base 1 leaks with cylinder junction.Successively
Metal perforated plate 3, filter screen 2 and geotextiles are put into base 1.Pressure-measuring pipe 5 is installed.
S2, connection regulation pipe 7 and feed pipe 12, by the gas in base 1 pipeline, in metal perforated plate 3
After body is discharged, close tongs 11.
S3, at pressure chamber 4 height more than 250mm inwall coating butter or vaseline, can reduce
The sealing ring 17 of pressurization upper cover 8 and the friction of cylinder inner wall.
S4, take representative sand as soil sample 16, and measure its moisture content, soil sample 16 is divided into 10-15
Layer loads cylinder, hits actual arrival certain height with ramming device, to control void ratio.
After S5, every layer of examination sample compacting complete, being opened by the tongs 11 on feed pipe 12, the water surface is high
Degree rise to soil sample 16 concordant time close tongs 11.After successively filling soil sample 16 according to above-mentioned steps, more successively
Put geotextiles and metal perforated plate 3.Survey the height of metal perforated plate 3 to cylinder top, calculate soil sample 16 high
Degree.
S6, regulation pressurization upper cover 8 so that it is just contact with metal perforated plate 3, and at counterweight pallet 27
Upper plus counterweight, parallel with horizon rule regulation second lever 19.Make pressurization upper cover 8 and metal perforated plate 3
Completely attach to, metal perforated plate 3 is fully contacted with soil sample 16.
S7, installation position displacement sensor 9.Crack tongs 11, until water overflows from gap 15.
S8, check that each piezometric level is the most consistent with gap 15 water level, when pressure-measuring pipe 5 with overflow
During the water level difference of the mouth of a river 15, being because instrument has the possibility of gas collection or gas leakage, adjusts pressure measurement with water suction ball
Pipe 5 water level, until concordant with gap 15 water level.
S9, regulation pipe 7 bring up to more than gap 15 water level, be then peeled off regulate pipe 7 and supply
Water pipe 12, opens tongs 11, puts in cylinder by feed pipe 12, makes water inject in cylinder, according to
Required loading stress adds counterweight, at counterweight pallet 27 plus counterweight, makes primary lever and second lever
19 is parallel, starts to gather displacement transducer 9 and pressure transmitter 24 data.Apply every first class pressure
After preferably use following time sequencing survey note.Time is 6s, 15s, 1min, 2min15s, 4min, 6min15s,
9min、12min15s、16min、20min15s、5min、30min15s、36min、42min15s、
49min, 64min, 100min, 200min, 400min, 23h, 24h are to stable.
S10, by regulation pipe be down to soil sample 16 top 1/3 height place, formed water level official post water infiltration
Soil sample 16, is flowed out by regulation pipe 7.Regulation tongs 11, makes the water yield of entrance cylinder slightly larger than overflowing
The water that the mouth of a river 15 is discharged, keeps stable level in cylinder.When, after pressure-measuring pipe 5 stable level, record is surveyed
Pressure pipe 5 water level, and calculate the water-head between each pressure-measuring pipe 5.Safety record of fixing time oozes out the water yield,
And measure the water temperature of water inlet 28, average.
At S11, the middle part reducing regulation pipe 7 to soil sample 16 and bottom 1/3, repeat the 10th step,
Mensuration oozes out the water yield and water temperature.
One or more technical schemes provided herein, at least have the following technical effect that or advantage:
Owing to have employed the guarantee uncrossed base of seepage velocity 1, pressure chamber 4, pressure-applying unit, oozing
Assembly and the Collaborative experiment device of numerical value acquisition system thoroughly, can rationally carry out stress loading and couple with infiltration
Test, it is ensured that Accurate Determining at stress loading, have under lateral spacing and axial drainage condition, deform (hole
Than) and the relation of the relation of stress, deformation and time and stress, infiltration coefficient and time three
Relation, and then accurately calculate unit settling amount, coefficient of compressibility, the cake compressibility of bulky grain soil, ooze
The thoroughly index such as coefficient, it is ensured that this test can reflect that engineering is actual more realistically, as roadbed before and after rainy season,
The draining on basis and sedimentation situation, offshore engineering and engineering on an island foundation drainage situation during tide.So,
Efficiently solve consolidation infiltration associating instrument of the prior art time bulky grain soil is tested, can deposit
In bigger dimensional effect, there is bigger error, it is impossible to the bulky grain soil of accurate simulation different buried depth
The technical problem of true stress state, it is achieved that be possible not only to carry out routine consolidation test, conventional infiltration
Test, fine grained consolidation infiltration Combined Trials, and coarse-grained soil under the different degree of consolidation can be carried out
Consolidation infiltration Combined Trials, the bulky grain soil true stress shape of accurate simulation different buried depth in laboratory
The technique effect of state.
Above-described detailed description of the invention, to the purpose of this utility model, technical scheme and useful effect
Fruit is further described, and be it should be understood that and the foregoing is only tool of the present utility model
Body embodiment, is not limited to this utility model, all in spirit of the present utility model with former
Within then, any modification, equivalent substitution and improvement etc. done, should be included in of the present utility model
Within protection domain.
Claims (10)
1. a consolidation infiltration Collaborative experiment device, it is characterised in that described Collaborative experiment device includes:
Base, offers discharge outlet and a plurality of first groove, and described a plurality of first groove connects described row
The mouth of a river；
Pressure chamber, is fixed on described base；Described pressure chamber is internal is cavity, and top slide is arranged
There is pressurization upper cover；Described pressurization upper cover offers water inlet and a plurality of second groove, and described a plurality of second
Groove connects described water inlet；
Pressure-applying unit, is connected with described pressurization upper cover, can apply to set pressure to described pressurization upper cover；
Filtration module, described filtration module includes: overflow pipe, regulation pipe and many pressure-measuring pipes；Described
Pressure chamber upper end is provided with gap, and described overflow pipe connects described gap；Described regulation pipe connects
Described discharge outlet；Described pressure chamber is vertically provided with multiple pressure tap, described many pressure-measuring pipes
Connect the plurality of pressure tap respectively；
Numerical value acquisition system, described numerical value acquisition system includes: pressure transmitter, displacement transducer and
Control unit；Described pressure transmitter is for detecting the pressure that soil sample is applied by described pressurization upper cover；Institute
Displacement sensors is for detecting the shift length of described pressurization upper cover；Described control unit and described pressure
Power transmitter and institute's displacement sensors connect；
Wherein, when carrying out consolidating permeability test, described soil sample is filled in described cavity.
2. Collaborative experiment device as claimed in claim 1, it is characterised in that
Described pressure chamber is the cylinder of hollow-core construction；
Described pressurization upper cover is Circular plate structure, and the circumference of described pressurization upper cover offers first annular groove,
It is provided with the first sealing ring in described first annular groove；
Described cylinder is bolted to connection with described base；The position of the corresponding described cylinder of described base
Put and offer the second cannelure, in described second cannelure, be provided with the second sealing ring；
Wherein, described first sealing ring and the second sealing ring are by the cavities seals within described pressure chamber.
3. Collaborative experiment device as claimed in claim 2, it is characterised in that
Described water inlet is positioned at the center of described plectane；
Described a plurality of second groove includes: the annular groove of a plurality of concyclic heart and the bar of a plurality of radial arrangement
Connected in star；Described annular groove is connected with described water inlet by described strip groove；
Described discharge outlet is positioned at the home position of described second cannelure；
Described a plurality of first groove includes: the annular groove of a plurality of concyclic heart and the bar of a plurality of radial arrangement
Connected in star；Described annular groove is connected with described discharge outlet by described strip groove.
4. Collaborative experiment device as claimed in claim 1, it is characterised in that described pressure-applying unit bag
Include:
Primary lever, one end is fixed on the ground by the first column；
Second lever, is fixed on the ground by the second column；Described second lever is by hinge bar even
Connect the other end of described primary lever；
Spiral jointing, top connects described primary lever, and junction point is near described first column；
The bottom of described spiral jointing is threaded connection with described pressurization upper cover, by turning described spiral shell
Rotation jointing makes the most described pressure chamber sliding of described pressurization upper cover；
Pressurization pallet, hangs the one end being located at described second lever；
Counterweight pallet, hangs the other end being located at described second lever；
Wherein, described second lever is positioned at described pressurization pallet with the junction point of described second column and joins
Between weight pallet, near described counterweight pallet；Described hinge bar and the junction point position of described second lever
Between described second column and described pressurization pallet, near described second column.
5. Collaborative experiment device as claimed in claim 1, it is characterised in that described Collaborative experiment fills
Put and also include:
Two pieces of metal perforated plates, are separately positioned between described soil sample and described base and described pressurization upper cover
And between described soil sample；
Filter screen, is arranged between described soil sample and described base, is positioned at the top of described metal perforated plate；
Wherein, the aperture of described metal perforated plate is more than the aperture of described filter screen.
6. Collaborative experiment device as claimed in claim 1, it is characterised in that
Described Collaborative experiment device includes 3 described pressure-measuring pipes；
Described pressure chamber is vertically provided with 3 pressure taps, between described 3 pressure taps vertically wait
Away from arrangement；Described 3 pressure-measuring pipes connect described 3 pressure taps respectively.
7. Collaborative experiment device as claimed in claim 1, it is characterised in that described Collaborative experiment fills
Put and also include:
Water supply bottle, is fixed on the top of described pressure chamber；
Feed pipe, one end is connected with described water supply bottle, to provide experimental water；
Tongs, is arranged on described feed pipe.
8. Collaborative experiment device as claimed in claim 1, it is characterised in that described Collaborative experiment fills
Put and also include:
Temperature test parts, are arranged in described pressurization and cover；
Graduated cylinder, is arranged on described base, with the metering seepage flow water yield by described soil sample.
9. Collaborative experiment device as claimed in claim 1, it is characterised in that
The top center of described pressurization upper cover is provided with iron plate, and institute's displacement sensors is fixed on described ferrum
On sheet；
Described control unit includes: dynamic test system and computer；Described dynamic test system and institute
State pressure transmitter, institute's displacement sensors and described computer to connect.
10. Collaborative experiment device as claimed in claim 1, it is characterised in that described Collaborative experiment
Device also includes:
Sliding support, described sliding support includes support bar and horizon bar；Described support bar is fixed on institute
State on base；Described horizon bar is slidably connected with described support bar；
Described regulation pipe hangs and is located on described horizon bar；
Wherein, by the described horizon bar that slides, to change the vertical height of described regulation pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521112833.3U CN205484324U (en) | 2015-12-28 | 2015-12-28 | Concrete joint experimental apparatus of infiltration |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521112833.3U CN205484324U (en) | 2015-12-28 | 2015-12-28 | Concrete joint experimental apparatus of infiltration |
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| CN205484324U true CN205484324U (en) | 2016-08-17 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486840A (en) * | 2015-12-28 | 2016-04-13 | 中国科学院武汉岩土力学研究所 | Solidification and permeation combined experimental device |
| CN110133216A (en) * | 2019-05-15 | 2019-08-16 | 枣庄学院 | Measure the experimental provision that sediment consolidation additional stress is buried in mud-rock flow silt |
| CN111521486A (en) * | 2020-04-21 | 2020-08-11 | 中国科学院武汉岩土力学研究所 | On-site consolidation experiment table |
| CN112098300A (en) * | 2020-09-21 | 2020-12-18 | 重庆科技学院 | Full-diameter core radial flow permeability testing device and testing method |
| CN116559047A (en) * | 2023-05-06 | 2023-08-08 | 中国地质大学（武汉） | Permeation experiment device and method for evaluating permeation coefficient and flow state |
-
2015
- 2015-12-28 CN CN201521112833.3U patent/CN205484324U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486840A (en) * | 2015-12-28 | 2016-04-13 | 中国科学院武汉岩土力学研究所 | Solidification and permeation combined experimental device |
| CN105486840B (en) * | 2015-12-28 | 2018-08-14 | 中国科学院武汉岩土力学研究所 | A kind of consolidation infiltration Collaborative experiment device |
| CN110133216A (en) * | 2019-05-15 | 2019-08-16 | 枣庄学院 | Measure the experimental provision that sediment consolidation additional stress is buried in mud-rock flow silt |
| CN111521486A (en) * | 2020-04-21 | 2020-08-11 | 中国科学院武汉岩土力学研究所 | On-site consolidation experiment table |
| CN112098300A (en) * | 2020-09-21 | 2020-12-18 | 重庆科技学院 | Full-diameter core radial flow permeability testing device and testing method |
| CN116559047A (en) * | 2023-05-06 | 2023-08-08 | 中国地质大学（武汉） | Permeation experiment device and method for evaluating permeation coefficient and flow state |
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