CN109147541A - Soil body penetration crash simulation device and application method - Google Patents
Soil body penetration crash simulation device and application method Download PDFInfo
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- CN109147541A CN109147541A CN201811253348.6A CN201811253348A CN109147541A CN 109147541 A CN109147541 A CN 109147541A CN 201811253348 A CN201811253348 A CN 201811253348A CN 109147541 A CN109147541 A CN 109147541A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Abstract
A kind of soil body penetration crash simulation device, to solve the technical issues of existing seepage failure simulator can not be analyzed applied to the soil body penetration breaking test under the influence of dynamic load.It includes the soil body, load loading device and simulation of infiltration device；The simulation of infiltration device makes the soil body that water infiltration phenomenon occur；The top of the soil body is arranged in the load loading device.A kind of application method of soil body penetration crash simulation device, the soil body penetration crash simulation device include soil body container, simulation of infiltration device, load loading device and measuring device；The simulation of infiltration device includes the water pipe with valve；The soil body container is equipped with soil erosion mouth, water pipe impenetrating mouth and observation area for containing the soil body, the soil body container；The load loading device shakes the soil body or soil body container；The measuring device includes displacement meter, soil pressure cell and controller；The soil body penetration under the influence of dynamic load, which can be observed, by it destroys situation.
Description
Technical field
The present invention relates to Subgrade Subsidence experimental provisions, and in particular to a kind of soil body penetration crash simulation device and use
Method.
Background technique
With City Buried Pipeline aging, pipe network water leakage situation is multiple, and the soil body near pipeline by water infiltration also due to being destroyed
Road surface occurs to collapse.The road surface that such situation causes, which collapses, has the characteristics that concealment, is usually difficult to observe, this be unfavorable for improving and
It is theoretical to verify surface collapse.
The mechanism, law of development that cavity is formed under urban pavement can be disclosed by not currently existing complete theoretical system,
Existing research method is only from the angle analysis soil body penetration failure law of damage of soil body.
The Chinese patent literature CN105572319B for being disclosed on November 24th, 2017 describes a kind of waterpower induction covering
Type karst collapse simulation test device, including water level control unit, rainfall simulation unit, test unit and intellectual monitoring list
Member, in which: the water level control unit is used for the pressure water head and phreatic table of test unit during Control experiment；The people
Work rainfall simulation unit is connect with the water level control unit, is provided by the water level control unit for simulating rain making
It supplies water；The test unit includes water table aquifer simulation box and the bearing course water tank that is set to below the water table aquifer simulation box, is used
Test is collapsed in covered karst, stainless (steel) wire, each stainless steel are respectively arranged at left and right sides of the water table aquifer simulation box
Respectively constituted at left and right sides of net and water table aquifer simulation box left and right water tank for for dive under water layer soil body uniformly supply water；The intelligence prison
Surveying unit includes water pressure sensor, soil pressure sensor, optical sensor, laser displacement sensor, soil moisture sensor
And digital camera, the water pressure sensor are connected with the gaging hole on the rear panel for being set to water table aquifer simulation box, the gaging hole
Take middle lower portion intensive, the dispersion of remaining position, and the dislocation arrangement at left and right sides of center line；The soil pressure sensor setting
In the backplate surface of the water table aquifer simulation box；The optical sensor arrangement is in bearing course water tank upper end front and rear sides center
Place is influenced to start the amount for flowing into bearing course water tank by hydraulic factors, be collapsed for covered karst for monitoring fine grained in coating
It falls into soil cave forming process and foundation is provided；The laser displacement sensor is set to the top of the test unit, for monitoring ground
Table sedimentation；The soil moisture sensor is arranged in the water table aquifer unsaturation band of soil model to be measured, for monitoring soil water-containing
Amount collapses final soil arch unstability for covered karst and provides foundation；The test unit is being arranged in just in the digital camera
Front, for shooting test process and result；Wherein, the water table aquifer simulation box and bearing course water tank are by organic transparent glass
Be made, the top of the bearing course water tank is equipped with bearing course water tank top plate, connect with the bottom plate of water table aquifer simulation box, two parts it
Between sealing padded by watertight rubber；Be respectively arranged at left and right sides of the water table aquifer simulation box stainless (steel) wire and respectively with it is described
Stainless (steel) wire constitutes left and right water tank and is used to uniformly supply water for diving layer soil body；Organic glass is respectively arranged in the bottom of stainless (steel) wire
Glass plate is used to prevent water inlet water flow from directly contacting with the soil body for the head energy dissipating entered；In the bottom plate of water table aquifer simulation box
Between position be provided with a cavity, and with there are four sliding groove, the sliding groove is for being arranged Karst Fissures analog board, by being set to
The gap of the left and right crack width control sheet adjustment Karst Fissures of crack karst analog board side is wide.
Chinese patent literature CN105572319B is described while also being described a kind of simulation waterpower induction covered karst
The method collapsed includes the following steps: that (1) tiles soil pressure sensor on water table aquifer simulation box inner bottom plating, wants according to test
Adjustment crack width control sheet is sought, and crack karst analog board is fixed；(2) by bearing course water tank and water table aquifer simulation box pair
It connects, and is screwed, water table aquifer simulation box bottom plate position will be filled with water in bearing course water tank, while in bearing course water tank upper
Fixed optical sensor；(3) soil sample is prepared, and spraying with sprayer, so that soil property contains certain moisture；(4) it is covered with walk
The cavity that bottom plate middle position opens up, walk can not block intermediate crack, in order to avoid increase waterpower osmosis patch test effect, it will
The soil sample of preparation is laid in water table aquifer simulation box, compacting, and colored thin by the setting of front side organic glass edge on soil layer
Sand, the mark line as digital imaging system；(5) repetition step (4) is up to forming soil layer construction, in soil layer compacting process,
It places into the soil moisture transducer；(6) pressure water head control cabinet is opened, and is adjusted by valve, so that the sluggish flow in water pipe
Bearing course water tank is flowed into be saturated using " hot water saturation ", i.e., in water feeding tank to prevent from occurring gas explosion phenomenon in soil layer
Hot water is stored, so that water level in pressure water head control cabinet is slightly above sample basal surface position, then slowly promote water tank, promotes 1 every time
~2cm, equal with water level in sample to Water in Water Tanks position, a few minutes of waiting promote water tank again, as water tank rises, examination
Sample is slowly saturated, and excludes the air in sample, at the same time, when water pressure gaging hole has elutriation to go out, connects connection water pressure
The hose of sensor, it is desirable that inner filling water excludes bubble before hose is connected, and hose both ends are slightly above conduit mouth, reduces a termination
Admittance pipe, it is ensured that bubble-free between conduit and hose is filled the water in the other end with syringe, excludes air, connects water pressure sensor,
Pay attention to excluding the air of water pressure sensor part；(7) it stands, adjusts left water table aquifer water level control box, right water table aquifer water level control
Case processed and pressure water head control cabinet are to initial position, to the numerical stability in all the sensors, formation original state seepage field；
(8) laser displacement sensor instrument is placed in above test model unit, opens all monitoring devices, change water according to test requirements document
Power condition is tested.
Summary of the invention
Waterpower induction covered karst above-mentioned collapses simulation test device and application method is only used for simulation karst collapse,
It being found after inventor's research, urban pipeline is generally laid in below the edge, pavement or greenbelt of urban road two sides, this
Sample, traffic dynamic load also belong to soil body penetration and destroy important one of influence factor.
One of goal of the invention of the invention is to provide a kind of soil body penetration crash simulation device, collapses for simulated roadway water infiltration
It falls into, it can not be applied to the soil body penetration breaking test analysis under the influence of dynamic load to solve existing seepage failure simulator
The technical issues of.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
Design a kind of soil body penetration crash simulation device, including the soil body, load loading device and simulation of infiltration device；The infiltration
Simulator into the soil body for supplying water, so that the soil body occurs water and seeps phenomenon；The load loading device is mounted on
It is arranged on the pressure dissipation body of the top of the soil body, the lower surface of the pressure dissipation body is plate face, pressure dissipation body
Lower surface >=soil body upper surface.
Preferably, the load loading device is at least one in vibration excitor, cam vibration device and supersonic generator
Kind；When the load loading device is vibration excitor or cam vibration device, the load loading device is arranged in the soil body
Top.
Design a kind of soil body penetration crash simulation device, including soil body container, load loading device and simulation of infiltration device；
The soil body container is equipped with soil erosion mouth for containing the soil body, in the side of the soil body container or bottom surface；The infiltration mould
Quasi- device into the soil body for supplying water, so that the soil body occurs water and seeps phenomenon；The load loading device, which is mounted on, to be set
It sets on the pressure dissipation body of the top of the soil body, the lower surface of pressure dissipation body is slightly less than the upper table of the soil body container
Face, so that the stress concentration effect of the edge of the pressure dissipation body is weak, and again can be movable in the soil body container,
Alternatively, the load loading device is for shaking the soil body container.
Preferably, the load loading device is at least one in vibration excitor, cam vibration device and supersonic generator
Kind.
It further, further include measuring device, the measuring device is used to measure the sedimentation deformation of the soil body upper surface
And/or the pressure of the inside soil body.
Preferably, the simulation of infiltration device includes the water pipe with valve, and the water pipe protrudes into the soil body or the soil
In body container, the valve is arranged in the soil body or soil body container foreign side, for accessing water source with pressure.
Further, the different height of the soil body container side be equipped with multiple water pipe impenetrating mouths, the water pipe to
A few water pipe impenetrating mouth protrudes into the soil body container, and the water pipe impenetrating mouth for being not provided with the water pipe, which is equipped with, to be used for
Block the plug of corresponding water pipe impenetrating mouth.
Further, the side of the water pipe is additionally provided with permeable hole, and the permeable hole setting is corresponding in the soil body
Or on the water pipe in the soil body container.
Further, the simulation of infiltration device further includes constant pressure water tank, and the constant pressure water tank is equipped with water inlet, upper water-out
Mouth, lower outlet, upper water-out mouth, lower outlet are below water inlet setting, and lower outlet is connected to the valve pipe.
Compared with prior art, a kind of beneficial effect of soil body penetration crash simulation device of the present invention is: being added using load
Carrying to set vibrates the soil body, situation is destroyed to simulate soil body penetration of soil body under the influence of dynamic loading, in this way, experimenter
The sedimentation phenomenon of soil body surface can be observed, the heavy of soil body surface can also be measured by measuring tool or other measuring devices
Demotion move, it can be applied to road surface water infiltration collapse simulated experiment.
The two of goal of the invention of the invention are to provide a kind of application method of soil body penetration crash simulation device, for simulating
Water infiltration in road surface collapses, can not be broken applied to the soil body penetration under the influence of dynamic load to solve existing seepage failure simulator
The technical issues of bad experimental analysis.
A kind of application method of soil body penetration crash simulation device, the soil body penetration crash simulation device include that the soil body holds
Device, simulation of infiltration device, load loading device and measuring device；The simulation of infiltration device includes the water pipe with valve, in institute
The side for stating water pipe is equipped with permeable hole, and permeable hole, which is arranged in, to be corresponded on the water pipe in the soil body container, is corresponding to
The end point of the water pipe in the soil body container is equipped with plug；The soil body container is for containing the soil body, in the soil body
The side or bottom surface of container are equipped with soil erosion mouth, are equipped with the observation area that transparent material is formed in the side of the soil body container,
Multiple water pipe impenetrating mouths are equidistantly equipped on the different height of the observation area；The load loading device, which is mounted on, to be arranged in institute
It states on the pressure dissipation body of the top of the soil body, the lower surface of pressure dissipation body is slightly less than the upper surface of the soil body container, so that
The stress concentration effect of the edge of the pressure dissipation body is weak, and again can be movable in the soil body container, alternatively, described
Load loading device is for shaking the soil body container；Displacement measurement hole is equipped on the pressure dissipation body, it is described
Displacement measurement hole upright projection is on the water pipe with valve；The measuring device includes displacement meter, soil pressure cell and control
Device, the measurement end of the measuring staff of the displacement meter are fixedly connected with pressure dissipation ball, for measuring the sedimentation of the soil body upper surface
Displacement, the soil pressure cell are used to measure the pressure of the inside soil body；It is further comprising the steps of:
Production contains water and soil, take soil and be successively dried, processing is mixed and stirred in powder processed, water mixing；
Water and soil layering will be contained to be placed into soil body container, separated between two layers adjacent of aquifer by powder mark layer,
To aqueous native compaction treatment when placing every layer of aquifer, the compacted thickness of every layer of aquifer is made to correspond to two adjacent water
Then the difference in height of pipe impenetrating mouth places a soil pressure cell, will not need the water pipe that the water pipe with valve is arranged using plug
Impenetrating mouth blocks, when the height containing water and soil in soil body container reaches the position for corresponding to and needing that the water pipe with valve is arranged, also
The water pipe is inserted into soil body container through water pipe through hole, and the permeable hole of water pipe side is made to be entirely located in soil body container
It is interior；At this moment the aquifer in soil body container and mark layer just form the soil body；
The pressure dissipation body for being equipped with load loading device is then placed on to the upper surface of the soil body, displacement meter is fixed on
On soil body container, the measuring staff of displacement meter is vertically set in institute's displacement measurement hole, and the pressure dissipation ball and the soil body
Upper surface connect, pressure dissipation body and the signal that the signal output end of displacement meter, soil pressure cell is accessed to corresponding controller
Input interface；
Valve is closed, the other end of valve is accessed into constant pressure water source；
Carry out after observing and recording preparation, open valve, open load loading device, from observation area the soil body change and record because
The process in the loss channel that Water pipe leaking is formed, and by the stress data and the soil body around controller record soil pressure cell
The displacement data that surface occurs.
Compared with prior art, a kind of beneficial effect of soil body penetration crash simulation device of the present invention is: being added using load
Carrying to set vibrates the soil body, situation is destroyed to simulate soil body penetration of soil body under the influence of dynamic loading, in this way, experimenter
The sedimentation phenomenon of soil body surface can be observed, the heavy of soil body surface can also be measured by measuring tool or other measuring devices
Demotion move, it can be applied to road surface water infiltration collapse simulated experiment.
Compared with prior art, a kind of beneficial effect of the application method of soil body penetration crash simulation device of the present invention is:
The soil body is vibrated using load loading device, destroys situation to simulate soil body penetration of soil body under the influence of dynamic loading, this
Sample, experimenter can observe the sedimentation phenomenon of soil body surface, can also measure by measuring tool or other measuring devices
The sedimentation deformation of soil body surface, it can be applied to road surface water infiltration collapse simulated experiment.
Detailed description of the invention
Fig. 1 is a kind of main view of soil body penetration crash simulation device of the present invention.
Fig. 2 is a kind of sectional view of soil body penetration crash simulation device of the present invention.
In figure, 1- soil body container, 11- plug, 12- soil erosion mouth, 13- stirrup, the observation area 14-, the 2- soil body, 21- contains
Water and soil layer, 22- powder mark layer, 31- water pipe, 311- permeable hole, 32- valve, 4- load loading device, 41- pressure dissipation body,
411- displacement measurement hole, 51- soil pressure cell, 52- displacement meter, 521- measuring staff, 53- controller, 6- constant pressure water tank, 61- water inlet,
62- upper water-out mouth, 63- lower outlet.
Specific embodiment
Illustrate a specific embodiment of the invention with reference to the accompanying drawings and examples, but following embodiment is used only in detail
It describes the bright present invention in detail, does not limit the scope of the invention in any way.
Embodiment 1: a kind of soil body penetration crash simulation device, including soil body container 1, the soil body 2,4 and of load loading device
Simulation of infiltration device.In soil body penetration breaking test, the soil body 2 is necessary, and soil body container 1 is only used for containing the soil body 2,
That is soil body container 1 not be it is necessary, leakage point foreign side the soil body also can to leakage point formed surround, at this point, under
The lower surface for the pressure dissipation body 41 stated is best >=upper surface of the soil body 2, the pressure dissipation effect of such pressure dissipation body 41 is most
Good, stress concentration effect is also just not present in edge.In order to facilitate the operation and illustrate, using in the present embodiment has soil body container
1。
Soil body penetration crash simulation device can also include measuring device, and the measuring device is for measuring the soil body
The sedimentation deformation of 2 upper surfaces and/or the pressure inside the soil body 2, as needed, measuring device can have one or two kinds of function
Energy.
Load loading device 4 is at least one of vibration excitor, cam vibration device and supersonic generator；When load plus
It carries and sets 4 when being vibration excitor or cam vibration device, load loading device 4 may be mounted on pressure dissipation body 41, pressure point
Granular media 41 is selected as steel plate, and pressure dissipation body 41 is arranged on the upper surface of the soil body 2, what vibration excitor or cam vibration device issued
Vibration is conducted by pressure dissipation body 41 to the soil body 2, so that the soil body 2 shakes.The size of pressure dissipation body 41 should be slightly less than
The size of soil body container 2, in this way, load loading device 4 work when, because between pressure dissipation body 4 and soil body container 2 gap compared with
It is small, dynamic pressure can be substantially dispersed to the upper surface of the soil body 2, acted on the soil body 2 in the edge of pressure dissipation body 4
Stress concentration effect is weak, and again can be movable in soil body container 1, can be ignored on the influence of the error of measurement；According to need
It wants, displacement measurement hole 411 is equipped on pressure dissipation body 41,411 upright projection of displacement measurement hole is in the water pipe 31 with valve 32
On；Load loading device 4 also may be mounted on soil body container 1, and the vibration that vibration excitor or cam vibration device issue passes through soil
Body container 1 is conducted to the soil body 2 in soil body container 1, so that the soil body 2 shakes；When load loading device 4 is ultrasonic wave
When device, what it is due to supersonic generator sending is ultrasonic wave, can be conducted in air, as long as ultrasonic wave occurs in this way
Device issue ultrasound can conduct to the soil body 2 and act on the soil body 2 can, load loading device 4 can be according to need at this time
It fixes at the desired position.In the present embodiment, load loading device 4 selects vibration excitor.
Simulation of infiltration device into the soil body 2 for supplying water, so that the soil body 2 occurs water and seeps phenomenon.Simulation of infiltration device includes
Water pipe 31 with valve 32, water pipe 31 protrude into the soil body 2 or soil body container 1, since the end point of water pipe 31 can make water flow
Out, so in this way water outlet can be formed in the soil body 2 or soil body container 1；Valve 32 is arranged outside the soil body 2 or soil body container 1
Side, for accessing water source with pressure.As needed, plug can be used 31 end point of water pipe in the soil body 2 or in soil body container 1
Blocking, the side of water pipe 31 be equipped with permeable hole 311, permeable hole 311 setting correspond to the soil body 2 in or the soil body hold
On the water pipe 31 in device 1, biggish infiltration region can be set in this way.Valve 32 includes shut-off valve or flow control valve,
For opening water pipe or ending.Valve 32 can also include pressure-regulating valve, and pressure-regulating valve is arranged in shut-off valve or stream
It, can be with for keeping the pressure of the water flow at the soil body 2 or soil body container 1 constant between adjustable valve and the soil body 2 or soil body container 1
Instead of the constant pressure water tank 6 used in the present embodiment.
Simulation of infiltration device can also include constant pressure water tank 6, and constant pressure water tank 6 can choose the water tank with upper opening, this
Sample is capable of forming air open-work, and constant pressure water tank 6 includes water inlet 61, upper water-out mouth 62 and lower outlet 63, lower outlet 63 with
Valve 32 is connected to by pipeline, when load loading device 4 makes the soil body 2 or soil body container 1 occurs laterally to shake, lower outlet 63
Pipeline between the soil body 2 or soil body container 1 is preferably provided with flexible tube section, can reduce in this way the soil body 2 or 1 side of soil body container to shake
It is dynamic to be transmitted at constant pressure water tank 6.In use, the water inlet of constant pressure water tank 6 can be connected to water supply with pipeline, water can also be connected to
The water outlet of pump, in use, the water inlet of water pump is arranged in water body.When fixed constant pressure water tank 6, it is desirable to adjust constant pressure water
The height of case, that is to say, that be preferably selected on different height with multiple fixed bits fixed frame, at this moment lower outlet 63 with
Pipeline between the soil body 2 or soil body container 1 should be equipped with flexible tube section, and this makes it possible to adjust lower outlet 63 and the soil body 2 or the soil body
The pressure difference between water pipe 31 in container 1.
Soil body container 1 is selected as the cabinet with upper opening, is also convenient in this way with forming the soil body 2 by load convenient for filling soil
The top of the soil body 2 is arranged in loading device 4, pressure dissipation body 41.Soil erosion mouth is equipped in the side of soil body container 1 or bottom surface
12.As needed, multiple water pipe impenetrating mouths can be equidistantly equipped on the different height of 1 side of soil body container, in the present embodiment,
The difference in height of two adjacent water pipe impenetrating mouths is selected as 150mm, and water pipe 31, which protrudes into the soil body from least one water pipe impenetrating mouth, to be held
In device 1, the water pipe impenetrating mouth of water pipe 31 is not provided with equipped with the plug 11 for blocking corresponding water pipe impenetrating mouth, plug 11 is best
Using resilient plug, such as rubber stopper, stopper.The side of soil body container 1 is preferably provided with the observation area 14 of transparent material formation, in this way
The situation inside soil body container 1 can be observed by observation area 14.Transparent material has acrylic, glass, wherein tempered glass
Safety it is good.When transparent material selects glass, elastic shock attenuation material is preferably provided in the junction of glass and soil body container
Material, vibration-absorptive material have rubber, glass cement.To prevent observation area 14 because pressure is toppled, set in the upper, middle and lower position of soil body container 1
3 stirrups 13 are set.
Measuring device may include displacement meter 52, soil pressure cell 51, controller 53, and controller 53 should be equipped with and displacement meter
52, the corresponding analog input interface of soil pressure cell 51 or digital signal input interface, controller 53 can be used and be equipped with
The electronic computer of RS232 analog input card and RS232 Control card, RS232 Control card should be able to be converted to RS232 signal
The square wave of different frequency, the signal output end of RS232 Control card are electrically connected with the control terminal of vibration excitor, to drive vibration excitor defeated
The vibrations load of different frequency out.Displacement meter 52 is installed on soil body container 1, and the measuring staff of displacement meter 52 is vertically arranged, displacement meter 52
The measurement end of measuring staff 521 can be equipped with pressure dissipation ball, the diameter of pressure dissipation ball be more preferably less than the diameter in displacement measurement hole,
Measuring staff 521 is vertically set in displacement measurement hole, and the bottom surface of pressure dissipation ball connects with the upper surface of the pressure dissipation body soil body 2,
Since collapsing of inducing of the infiltration of water pipe 31 focuses primarily upon the top of water pipe 31, pressure dissipation ball can disperse 521 bottom end of measuring staff
The measurement accuracy of pressure, such displacement meter 52 is calibrated.The electrical connection corresponding with the signal input interface of controller 53 of displacement meter 52, this
Sample can measure the sedimentation deformation when soil body 2 collapses by displacement meter 52, the signal of soil pressure cell 51 and controller 53 inputs
The corresponding electrical connection of interface, this makes it possible to the pressure measured inside the soil body 2 by soil pressure cell 51.Soil pressure cell 51 can be set
One, it is two or more, a soil pressure cell 51 should be provided on the top of the soil body 2, can according to need in the soil body 2 not
With the other soil pressure cells 51 of setting in height.
Embodiment 2: a kind of application method of soil body penetration crash simulation device, soil body penetration crash simulation device include soil
Body container 1, simulation of infiltration device, load loading device 4 and measuring device；Simulation of infiltration device includes the water pipe with valve 32
31, it is equipped with permeable hole 311 in the side of water pipe 31, the water pipe 31 corresponded in soil body container 1 is arranged in permeable hole 311
On, plug is equipped in the end point of the water pipe 31 corresponded in soil body container 1；Soil body container 1 is for containing the soil body 2, in the soil body
The side or bottom surface of container 1 are equipped with soil erosion mouth 12, are equipped with the observation area that transparent material is formed in the side of soil body container 1
14, it is equidistantly equipped with multiple water pipe impenetrating mouths on the different height of observation area 14, can be observed directly from observation area 14 in this way
Sky around water pipe 31 falls into the collapse process formed with the soil body 2；Load loading device 4 is used to provide dynamic pressure to the soil body 2,
Specifically, load loading device 4 is mounted on pressure dissipation body 41, pressure dissipation body 41 is placed on the upper of the soil body 2, pressure dissipation
The lower surface of body 41 is slightly less than the upper surface of soil body container 1, so that the stress concentration effect of the edge of the pressure dissipation body
It is weak, and again can be movable in the soil body container, alternatively, load loading device 4 is for shaking soil body container 1；?
Pressure dissipation body 41 is equipped with displacement measurement hole 411, and 411 upright projection of displacement measurement hole is on the water pipe 31 with valve 32；It surveys
Measuring device includes displacement meter 52, soil pressure cell 51 and controller 53, and the measurement end of the measuring staff 521 of displacement meter 52 can be fixedly connected
There is pressure dissipation ball, for measuring the sedimentation deformation of 2 upper surface of the soil body, soil pressure cell 51 is for measuring inside the soil body 2
Pressure；The following steps are included:
Production contains water and soil, take soil and be successively dried, processing is mixed and stirred in powder processed, water mixing；
It is coated with isolated chromatography layer in the inner wall of soil body container 1 as needed, isolation layer material can be ointment, packing paper, and ointment can select
Vaseline is selected, when isolated chromatography layer material selection packing paper, should leave a blank at observation area 14, block observation area 14 to avoid packing paper；Root
According to needing to place packing paper in soil erosion mouth 12, when containing water and soil is placed to avoid this backward soil body container 1, contains water and soil from water and soil stream
A slip of tongue 12 is largely fallen；
Then it will contain water and soil layering to be placed into soil body container 1, and pass through powder mark layer between adjacent two layers of aquifer 21
22 separate, and powder mark layer 22 can select albarium, if partial size can satisfy do not influence water body infiltration and the soil body 2 collapse
, in this way can from observation area 14, intuitively the observation soil body 2 settles degree, to containing water and soil after placing every layer of aquifer 21
Compaction treatment, the compacted thickness of every layer of aquifer 21 correspond to the difference in height of two adjacent water pipe impenetrating mouths, correspond to
Then 150mm places a soil pressure cell 31, the conducting wire of soil pressure cell 31 is made to be exposed to soil body container 1, will not using plug 11
The water pipe impenetrating mouth for needing to be arranged 31 water pipes with valve 32 blocks, and needs when the soil layer height in soil body container 1 reaches to correspond to
When the position of water pipe 31 with valve 32 is set, also water pipe 31 is inserted into soil body container 1 through water pipe through hole, and make water
The permeable hole 311 of 31 side of pipe is entirely located in soil body container 1；At this moment the aquifer 21 and mark layer 22 in soil body container 1
With regard to forming the corresponding soil body 2；
Then the upper surface of the soil body 2 will be placed on the pressure dissipation body 41 for being equipped with load loading device 4；Displacement meter 52 is consolidated
It is scheduled on soil body container 2, the measuring staff 521 of displacement meter 52 is vertically set on the upper of in displacement measurement hole 411 and its end and the soil body 2
Surface connects, and the signal output end of displacement meter 52, soil pressure cell 51 is accessed to the signal input interface of corresponding controller；Ginseng
See Fig. 1, displacement meter 52, soil pressure cell 51 conducting wire there are square bending formed it is more than needed, will not in this way when the soil body 2 is got deeply stuck in
Cause causes soil pressure cell 51 or displacement meter 52 to measure because conductor length is limited is not allowed；
Constant pressure water tank 6 is arranged in the height of needs, valve 32 is closed, lower outlet 63 is connected to valve 32 by pipeline,
Upper water-out mouth 62 is oriented to drainpipe by pipeline；
It carries out after observing and recording preparation, is filled the water into constant pressure water tank 6, open valve 32, open load loading device 4, pass through sight
It examines area 14 and observes the process that the soil body 2 changes and records the loss channel formed by the leakage of water pipe 31, and recorded by controller 53
Stress data around soil pressure cell 51, the displacement data with the generation of 2 upper surface of the soil body.
In experiment, the water pipe 31 with valve 32 can be inserted into as needed in the water pipe through hole of corresponding position.
Compared with prior art, the beneficial effects of the present invention are: vibrating the soil body using load loading device, with mould
Soil body penetration of quasi- soil body under the influence of dynamic loading destroys situation, in this way, experimenter can observe the sedimentation of soil body surface
Phenomenon, can also by measuring tool or other measuring devices measurement soil body surface sedimentation deformation, it can be applied to road surface
Water infiltration collapse simulated experiment.
The present invention is described in detail above in conjunction with drawings and examples, still, those of skill in the art
Member is it is understood that without departing from the purpose of the present invention, can also carry out each design parameter in above-described embodiment
Change, forms multiple specific embodiments, is common variation range of the invention, is no longer described in detail one by one herein.
Claims (10)
1. a kind of soil body penetration crash simulation device, including the soil body and simulation of infiltration device, which is characterized in that further include that load adds
It carries and sets；The simulation of infiltration device into the soil body for supplying water, so that the soil body occurs water and seeps phenomenon；The load
Loading device is mounted on the pressure dissipation body that the top of the soil body is arranged in, and the lower surface of the pressure dissipation body is plate
Face, lower surface >=soil body upper surface of pressure dissipation body.
2. soil body penetration crash simulation device as described in claim 1, which is characterized in that the load loading device is exciting
At least one of device, cam vibration device and supersonic generator；When the load loading device is vibration excitor or cam vibration
When dynamic device, the top of the soil body is arranged in the load loading device.
3. a kind of soil body penetration crash simulation device, including soil body container and simulation of infiltration device, which is characterized in that further include lotus
Carry loading device；The soil body container is equipped with soil erosion mouth for containing the soil body, in the side of the soil body container or bottom surface；
The simulation of infiltration device into the soil body for supplying water, so that the soil body occurs water and seeps phenomenon；The load load dress
It sets on the pressure dissipation body for being mounted on the top that the soil body is set, the lower surface of pressure dissipation body is slightly less than the soil body and holds
The upper surface of device, so that the stress concentration effect of the edge of the pressure dissipation body is weak, and again can be in the soil body container
Interior activity, alternatively, the load loading device is for shaking the soil body container.
4. soil body penetration crash simulation device as claimed in claim 3, which is characterized in that the load loading device is exciting
At least one of device, cam vibration device and supersonic generator.
5. such as soil body penetration crash simulation device of any of claims 1-4, which is characterized in that further include measurement dress
It sets, the measuring device is used to measure the sedimentation deformation of the soil body upper surface and/or the pressure of the inside soil body.
6. soil body penetration crash simulation device as described in claim 3 or 4, which is characterized in that the simulation of infiltration device packet
Include the water pipe with valve, the water pipe protrudes into the soil body or the soil body container, valve setting in the soil body or
Soil body container foreign side, for accessing water source with pressure.
7. soil body penetration crash simulation device as claimed in claim 6, which is characterized in that the difference of the soil body container side
Height is equipped with multiple water pipe impenetrating mouths, and the water pipe protrudes into the soil body container from water pipe impenetrating mouth described at least one,
The water pipe impenetrating mouth of the water pipe is not provided with equipped with the plug for blocking corresponding water pipe impenetrating mouth.
8. soil body penetration crash simulation device as claimed in claim 6, which is characterized in that the side of the water pipe is additionally provided with
Water hole, the permeable hole are arranged on the water pipe corresponded in the soil body or in the soil body container.
9. soil body penetration crash simulation device as claimed in claim 6, which is characterized in that the simulation of infiltration device further includes
Constant pressure water tank, the constant pressure water tank are equipped with water inlet, upper water-out mouth, lower outlet, and upper water-out mouth, lower outlet are below into water
Mouth setting, lower outlet are connected to the valve pipe.
10. a kind of application method of soil body penetration crash simulation device, the soil body penetration crash simulation device includes that the soil body holds
Device, simulation of infiltration device, which is characterized in that the soil body penetration crash simulation device further includes load loading device and measurement dress
It sets；
The simulation of infiltration device includes the water pipe with valve, is equipped with permeable hole in the side of the water pipe, permeable hole setting exists
Corresponding on the water pipe in the soil body container, it is equipped in the end point of the water pipe corresponded in the soil body container
Plug；
The soil body container is equipped with soil erosion mouth for containing the soil body, in the side of the soil body container or bottom surface, described
The side of soil body container is equipped with the observation area that transparent material is formed, and multiple water pipes are equidistantly equipped on the different height of observation area and are passed through
Wear mouth；
The load loading device is mounted on the pressure dissipation body that the top of the soil body is arranged in, the following table of pressure dissipation body
Face is slightly less than the upper surface of the soil body container, so that the stress concentration effect of the edge of the pressure dissipation body is weak, and again
Can be movable in the soil body container, alternatively, the load loading device is for shaking the soil body container；Institute
Pressure dissipation body is stated equipped with displacement measurement hole, institute's displacement measurement hole upright projection is on the water pipe with valve；
The measuring device includes displacement meter, soil pressure cell and controller, and the measurement end of the measuring staff of the displacement meter is fixedly connected
There is pressure dissipation ball, for measuring the sedimentation deformation of the soil body upper surface, the soil pressure cell is for measuring in the soil body
The pressure in portion；
It is further comprising the steps of:
Production contains water and soil, take soil and be successively dried, processing is mixed and stirred in powder processed, water mixing；
Water and soil layering will be contained to be placed into soil body container, separated between two layers adjacent of aquifer by powder mark layer,
To aqueous native compaction treatment when placing every layer of aquifer, the compacted thickness of every layer of aquifer is made to correspond to two adjacent water
Then the difference in height of pipe impenetrating mouth places a soil pressure cell, will not need the water pipe that the water pipe with valve is arranged using plug
Impenetrating mouth blocks, when the height containing water and soil in soil body container reaches the position for corresponding to and needing that the water pipe with valve is arranged, also
The water pipe is inserted into soil body container through water pipe through hole, and the permeable hole of water pipe side is made to be entirely located in soil body container
It is interior；At this moment the aquifer in soil body container and mark layer just form the soil body；
The pressure dissipation body for being equipped with load loading device is then placed on to the upper surface of the soil body, displacement meter is fixed on
On soil body container, the measuring staff of displacement meter is vertically set in institute's displacement measurement hole, and the pressure dissipation ball and the soil body
Upper surface connect, pressure dissipation body and the signal that the signal output end of displacement meter, soil pressure cell is accessed to corresponding controller
Input interface；
Valve is closed, the other end of valve is accessed into constant pressure water source；
Carry out after observing and recording preparation, open valve, open load loading device, from observation area the soil body change and record because
The process in the loss channel that Water pipe leaking is formed, and by the stress data and the soil body around controller record soil pressure cell
The displacement data that surface occurs.
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