CN209372647U - A kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ - Google Patents
A kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ Download PDFInfo
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- CN209372647U CN209372647U CN201821942748.3U CN201821942748U CN209372647U CN 209372647 U CN209372647 U CN 209372647U CN 201821942748 U CN201821942748 U CN 201821942748U CN 209372647 U CN209372647 U CN 209372647U
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- 238000001035 drying Methods 0.000 title claims abstract description 60
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000011148 porous material Substances 0.000 claims abstract description 132
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 91
- 238000005303 weighing Methods 0.000 claims abstract description 32
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 61
- 239000011521 glass Substances 0.000 claims description 40
- 238000006073 displacement reaction Methods 0.000 claims description 19
- 239000004744 fabric Substances 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 28
- 230000008595 infiltration Effects 0.000 abstract description 18
- 238000001764 infiltration Methods 0.000 abstract description 18
- 238000005259 measurement Methods 0.000 abstract description 10
- 239000002689 soil Substances 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 4
- 230000035515 penetration Effects 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 83
- 230000035699 permeability Effects 0.000 description 21
- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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Abstract
The utility model discloses a kind of permeameters for realizing multi- scenarios method and drying and watering cycle in situ, belong to Rock And Soil penetration equipment technical field, including air compressor and rack, moving beam is provided in rack, it is characterised in that: further include gas control cabinet, axis pressure loading device, pore pressure loading device, confining pressure loading device, drying unit, metering device and pressure chamber in situ；PLC controller is provided in gas control cabinet, drying unit in situ includes resistive heater and temperature control instrument, and resistive heater is electrically connected with temperature control instrument；Metering device includes water collector, weighing sensor and quality display table, and weighing sensor shows that table and PLC controller are electrically connected with quality respectively.The utility model can be realized multi- scenarios method, and can be realized drying and the measurement of sample humidity in situ, ensure that the integrality of sample structure during test, so as to effectively react actual conditions, ensures the accuracy of sample infiltration.
Description
Technical field
The utility model relates to arrive Rock And Soil penetration equipment technical field more particularly to a kind of realization multi- scenarios method and original position
The permeameter of drying and watering cycle.
Background technique
During large-scale hydroelectric project construction and operation, reservoir filling and reservoir level go up and down the water that will cause two sides Inclination body
Literary condition and natural environment change.The cyclical upturn and downturn of reservoir level can not only cause the circulation of Rock And Soil dry and wet state to become
Change, while will lead to two sides slopes seepage field, the variation of stress field generating period.
When previous test ground permeability, existing method only considered drying and watering cycle effect caused by reservoir level is gone up and down, not
Consider the collective effect of seepage field and stress field.The effect for not accounting for vertical load, confining pressure, does not account for cyclic hydrostatic pressure
The effect of power, osmotic pressure.In addition to this, the practical dry and wet state of reservoir level variation band is different, has method for drying and watering cycle
It is set as the absolutely dry condition of saturation-mostly.The surface layer soil body that reservoir level changes band can be equivalent to the absolutely dry circulation of saturation-, but
It is that Rock And Soil is substantially not in absolutely dry state inside its slopes, can only is half-dried state, this saturation-leather hard
Circulation also necessarily causes ground volume property that different variations occurs compared with saturation-absolutely dried condition circulation.And drying and watering cycle
It is to put back in permeameter again after carrying out drying and processing inside baking oven after sample is taken out, be easy to cause sample in this way that journey is also mostly
Structure changes, to will affect the accuracy of test.
Publication No. CN 207703680U, publication date are that on 08 07th, 2018 Chinese patent literature discloses one kind
The infiltration experiment device that can be loaded, the sensor acquisition module including permeameter and for acquiring sample permeability parameters, feature
It is: further includes being arranged at the top of permeameter, for providing the vertical load loading module of vertical load for sample, being connected to infiltration
Saturating instrument side, connect for the water-level fluctuation module of tide simulation load, with permeameter bottom, for simulated rainfall and evaporation
Drying and watering cycle module and setting are in permeameter side, for observing and recording the deformation sample deformation prison of sample during the experiment
Survey module.
Infiltration experiment device disclosed in the patent document, although can be carried out to infiltration coefficient before and after sample drying and watering cycle pair
Than the influence of number, frequency and the time of drying and watering cycle to sample infiltration coefficient being obtained, it can however not realizing multi- scenarios method, nothing
Method effectively reacts actual conditions, influences the accuracy of sample infiltration.
Utility model content
The utility model in order to overcome the defects of the prior art described above, provides a kind of realization multi- scenarios method and dry and wet in situ is followed
The permeameter of ring, the utility model can be realized multi- scenarios method, be more in line with actual conditions；And it can be realized drying and examination in situ
The measurement of sample humidity ensure that the integrality of sample structure during test, so as to effectively react actual conditions, protect
Hinder the accuracy of sample infiltration.
The utility model is achieved through the following technical solutions:
A kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ, including air compressor and rack are set in rack
Be equipped with moving beam, it is characterised in that: further include gas control cabinet, axis pressure loading device, pore pressure loading device, confining pressure loading device,
Drying unit, metering device and the pressure chamber for placing sample in situ, the pressure chamber include top cover, organic glass pressure-bearing cylinder
And pedestal, the upper end detachable connection of top cover and organic glass pressure-bearing cylinder, the lower end of pedestal and organic glass pressure-bearing cylinder are removable
Formula connection is unloaded, first row air valve is connected on the top cover, seepage exit is provided on pedestal, is connected with second exhaust on pedestal
Valve is connected with flowing water Valve on seepage exit, and the space between the inner wall and sample of organic glass pressure-bearing cylinder forms confining pressure chamber, has
Circular support is fixed on the inner wall of machine glass pressure-bearing cylinder, it is intracavitary that circular support is located at confining pressure；It is arranged in the pressure chamber useful
In the platen for compressing sample；PLC controller is provided in the gas control cabinet, the axis pressure loading device includes pressurized cylinder, axis
It calms the anger and controls proportioning valve, axis pressure pipe road, load transducer and displacement sensor, the piston rod of load transducer and pressurized cylinder connects
It connects, pressurized cylinder is placed in the center of moving beam, and the pressurized cylinder and axis, which are calmed the anger, to be controlled proportioning valve and pass through axis pressure pipe road company
It connects, the PLC controller is calmed the anger with axis respectively to be controlled proportioning valve, load transducer and displacement sensor and be electrically connected；The pore pressure adds
It carries and sets, be used to apply water pressure into pressure chamber and seepage pressure, pore pressure loading device include pore pressure pressure cylinder, pore pressure pipe
Road, medium cylinder and pore pressure Pneumatic control proportioning valve, pore pressure pressure cylinder by pore pressure pipe road respectively with pore pressure Pneumatic control proportioning valve and medium cylinder
Connection, medium cylinder are connect by pipeline with pressure chamber；The confining pressure loading device include confining pressure Pneumatic control proportioning valve, confining pressure pipeline and
Pressure sensor, pressure sensor are arranged on the pedestal of pressure chamber, and confining pressure Pneumatic control proportioning valve passes through confining pressure pipeline and pressure chamber
Connection, confining pressure Pneumatic control proportioning valve and pressure sensor are electrically connected with PLC controller respectively；The original position drying unit includes resistance
Heating wire and temperature control instrument, resistive heater are fixed on circular support, and resistive heater is electrically connected with temperature control instrument；The meter
Amount device includes water collector, weighing sensor and quality display table, and water collector is located at below pressure chamber, and water collector is placed in weighing and passes
On sensor, the weighing sensor shows that table and PLC controller are electrically connected with quality respectively.
For installing the station slot of sample, three station slot cloth triangular in shape there are three being opened on the pedestal of the pressure chamber
It sets.
It is provided with multiple through-holes on the station slot of the pedestal, close mesh gauze is fixedly connected on station slot.
The pore pressure pressure cylinder includes pneumatic actuator, dielectric cavity and piston, and piston is located in dielectric cavity, piston and air pressure
Actuator connection, pneumatic actuator are connect with pore pressure Pneumatic control proportioning valve.
The pore pressure pressure cylinder and medium cylinder are two, and two pore pressure pressure cylinders and two medium cylinders are arranged in parallel at gas
It controls in cabinet.
It is provided with lifter and water inlet pipe on the outer wall of the gas control cabinet, is fixed with water tank on lifter, the one of water inlet pipe
End is connect with water tank, and the other end of water inlet pipe is connected with the pipeline between medium cylinder and pressure chamber.
The rack includes the first lead screw, the first upper locking nut, the first lower locking nut, the second lead screw, the second locking
Tight nut, the second lower locking nut and workbench, one end of moving beam pass through the first lead screw and pass through the first upper locking nut
It is locked with the first lower locking nut, the other end passes through the second lead screw and locked by the second upper locking nut and the second lower locking nut
Tightly, the lower end of the first lead screw and the lower end of the second lead screw are fixedly connected with workbench respectively.
Multiple apertures are provided on the platen, multiple apertures are evenly distributed on platen.
The working principle of the utility model is as follows:
In use, sample is placed in the pressure chamber of permeameter, load is acquired by the PLC controller in gas control cabinet and is passed
The data of sensor carry out control shaft and calm the anger to control proportioning valve, are calmed the anger by control shaft and control the output pressure of proportioning valve, with control pressure
Size controls the power output of pressurized cylinder, and the power output of pressurized cylinder is acted in pressure chamber by load transducer, load
Sensor feedback is to PLC controller, and PLC controller again calm the anger and control the switching value of proportioning valve by adjustment axis, to realize that axis presses off ring control
System；Pore pressure loading device realizes that pore pressure pressure cylinder is vapor-liquid separating structure, and pneumatic actuator is by air pressure by pore pressure pressure cylinder
Contracting machine provides power source, and by pressure sensor senses pressure, PLC controller acquires the data of pressure sensor to control pore pressure
Pneumatic control proportioning valve, pore pressure Pneumatic control proportioning valve control pressure actuator, i.e. promotion piston, the space of piston press dielectric cavity forms pressure
Power, the pressure feedback that pressure sensor will test to PLC controller form pore pressure closed-loop control；Confining pressure loading device passes through
PLC controller acquires pressure sensor senses pressure, controls confining pressure Pneumatic control proportioning valve regulation gas pressure size, pressure sensor
The pressure that will test feeds back to PLC controller again, forms confining pressure closed-loop control；When drying in situ, sent out by resistive heater
Heat, and be adjusted by temperature control instrument according to the temperature of setting, pressure room temperature is increased, dries sample ecto-entad gradually
It is dry, during the drying process, first row air valve and second row air valve are opened, the vapor generated in drying course is discharged.Sample exists
In drying course in situ, the real-time monitoring to its moisture content is realized to determine when that the drying to sample can be stopped, being passed through
Weighing sensor and quality below pressure chamber show table, and number shows real-time weight change to determine its unsaturated state.
The beneficial effects of the utility model are mainly manifested in following aspect:
One, the utility model, pressure chamber include top cover, organic glass pressure-bearing cylinder and pedestal, are connected with first row on top cover
Air valve is provided with seepage exit on pedestal, second row air valve is connected on pedestal, flowing water Valve is connected on seepage exit, organic
Space between the inner wall and sample of glass pressure-bearing cylinder forms confining pressure chamber, is fixed with round branch on the inner wall of organic glass pressure-bearing cylinder
Frame, it is intracavitary that circular support is located at confining pressure；The platen for compressing sample is provided in pressure chamber；PLC control is provided in gas control cabinet
Device processed, axis pressure loading device includes that pressurized cylinder, axis calm the anger and control proportioning valve, axis pressure pipe road, load transducer and displacement sensor,
The connection of the piston rod of load transducer and pressurized cylinder, pressurized cylinder are placed in the center of moving beam, pressurized cylinder and axis
It calms the anger and controls proportioning valve by axis pressure piping connection, PLC controller is calmed the anger with axis respectively controls proportioning valve, load transducer and displacement biography
Sensor electrical connection；Pore pressure loading device is used to apply water pressure into pressure chamber and seepage pressure, pore pressure loading device includes hole
Press pressure cylinder, pore pressure pipeline, medium cylinder and pore pressure Pneumatic control proportioning valve, pore pressure pressure cylinder by pore pressure pipe road respectively with pore pressure gas control
Proportioning valve is connected with medium cylinder, and medium cylinder is connect by pipeline with pressure chamber；Confining pressure loading device include confining pressure Pneumatic control proportioning valve,
Confining pressure pipeline and pressure sensor, pressure sensor are arranged on the pedestal of pressure chamber, and confining pressure Pneumatic control proportioning valve passes through confining pressure pipe
Road is connect with pressure chamber, and confining pressure Pneumatic control proportioning valve and pressure sensor are electrically connected with PLC controller respectively；Drying unit packet in situ
Resistive heater and temperature control instrument are included, resistive heater is fixed on circular support, and resistive heater is electrically connected with temperature control instrument；
Metering device includes that water collector, weighing sensor and quality display table, water collector are placed on weighing sensor, weighing sensor point
Do not show that table and PLC controller are electrically connected with quality, compared with the prior art, by the PLC controller in gas control cabinet to placement
Sample in osmometer pressure chamber carries out axis and presses closed-loop control, pore pressure closed-loop control and confining pressure closed-loop control, realizes more
Coupling, is more in line with actual conditions；And can be realized drying and the measurement of sample humidity in situ, it needs to take out in the prior art
Sample is dried, and destructible sample integrality influences permeability test accuracy, can not only guarantee test by drying in situ
The integrality of sample structure in the process effectively reacts actual conditions, and then ensures the accuracy of sample infiltration, and reduce
Working strength has saved the time；In the measurement of sample humidity, generallys use and be inserted into or be embedded in advance moisture content in the sample
Measure probe, this mode can directly destroy sample structure, cause permeability test inaccurate, the utility model by
Setting weighing sensor and quality show table below pressure chamber, and number shows real-time weight change to determine its unsaturation shape
State can be realized the real-time monitoring to its moisture content to determine when that the drying to sample can be stopped, having ensured sample infiltration
Accuracy.
Two, the utility model is opened on the pedestal of pressure chamber there are three the station slot for installing sample, and three station slots are in
Triangular arrangement can test simultaneously three samples, ensure that the identity of companion specimens experimental condition, seep ensureing
In the case where saturating accuracy, the time has greatly been saved.
Three, the utility model is provided with multiple through-holes on the station slot of pedestal, close mesh gauze is fixedly connected on station slot,
It can not only smoothly drain, and water can be made to carry fine grained outflow, record particle number of dropouts convenient for weighing sensor.
Four, the utility model, pore pressure pressure cylinder include pneumatic actuator, dielectric cavity and piston, and piston is located in dielectric cavity,
Piston is connect with pneumatic actuator, and pneumatic actuator is connect with pore pressure Pneumatic control proportioning valve, controls gas convenient for pore pressure Pneumatic control proportioning valve
Actuator to be pressed, piston is pushed, the space of piston press dielectric cavity forms pressure, is easily formed pore pressure closed-loop control, so as to
More convenient applies water pressure and seepage pressure into pressure chamber, improves permeability test and operates convenience.
Five, the utility model, pore pressure pressure cylinder and medium cylinder are two, and two pore pressure pressure cylinders and two medium cylinders are simultaneously
Column are arranged in gas control cabinet, during applying seepage pressure, it is possible to which the water occurred in medium cylinder is unsatisfactory for permeability test
The case where water consumption, passes through two pore pressures in parallel that is, when the piston reciprocating in medium cylinder is primary, is unsatisfactory for infiltration institute's expense
Pressure cylinder realizes redundancy, when first pore pressure pressure cylinder is pressurized, second pore pressure pressure cylinder water suction, when first fluid chamber
When water will be inadequate, first pore pressure pressure cylinder pressurization is taken over by second pore pressure pressure cylinder, first pore pressure pressure cylinder is again
Water suction waits, and two pore pressure pressure cylinders and so on can reach without manual operation, and whole process completes two by PLC controller
The switching of a pore pressure pressure cylinder, so as to which the continuity of process of osmosis is effectively ensured.
Six, the utility model is provided with lifter and water inlet pipe on the outer wall of gas control cabinet, is fixed with water tank on lifter,
One end of water inlet pipe is connect with water tank, and the other end of water inlet pipe is connected with the pipeline between medium cylinder and pressure chamber, due to infiltration
The requirement to head is tested, using one water tank moving up and down of setting outside gas control cabinet, it will be able to the position of regulating tank
It sets, flushes water tank bottom with sample top, after sample drying and watering cycle, carry out conventional permeability test, record in this way
Time and seepage discharge can calculate saturation permeability coefficient, more convenient.
Seven, the utility model, rack include the first lead screw, the first upper locking nut, the first lower locking nut, second
Thick stick, the second upper locking nut, the second lower locking nut and workbench, one end of moving beam pass through the first lead screw and pass through first
Upper locking nut and the locking of the first lower locking nut, the other end pass through the second lead screw and by under the second upper locking nuts and second
The lower end of locking nut locking, the lower end of the first lead screw and the second lead screw is fixedly connected with workbench respectively, passes through moving beam
Following the first lower locking nut and the second lower locking nut adjusts the level of moving beam, on first above moving beam
Locking nut and the second upper locking nut fix the position of moving beam, are capable of the stability of effective guarantee permeability test, benefit
In the accuracy for improving permeability test.
Eight, the utility model is provided with multiple apertures on platen, and multiple apertures are evenly distributed on platen, emission uniformity
It is good, conducive to uniform water pressure and seepage pressure is applied into pressure chamber.
Detailed description of the invention
The utility model is described in further detail below in conjunction with specification drawings and specific embodiments,
In:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of setting metering device below the utility model pressure chamber；
Fig. 3 is the structural schematic diagram that the utility model diplopore presses pressure cylinder；
Fig. 4 is the structural schematic diagram of pedestal in the utility model embodiment 2；
Fig. 5 is the structural schematic diagram of pore pressure pressure cylinder in the utility model embodiment 3；
Fig. 6 is the structural schematic diagram of the utility model rack；
Marked in the figure: 1, air compressor, 2, rack, 3, moving beam, 4, gas control cabinet, 5, axis pressure loading device, 6, hole
Press loading device, 7, confining pressure loading device, 8, drying unit in situ, 9, metering device, 10, pressure chamber, 11, top cover, 12, organic
Glass pressure-bearing cylinder, 13, pedestal, 14, first row air valve, 15, second row air valve, 16, flowing water Valve, 17, confining pressure chamber, 18, circle
Bracket, 19, platen, 20, PLC controller, 21, pressurized cylinder, 22, axis calm the anger and control proportioning valve, 23, load transducer, 24, displacement
Sensor, 25, pore pressure pressure cylinder, 26, medium cylinder, 27, pore pressure Pneumatic control proportioning valve, 28, confining pressure Pneumatic control proportioning valve, 29, pressure biography
Sensor, 30, resistive heater, 31, temperature control instrument, 32, water collector, 33, weighing sensor, 34, quality display table, 35, station
Slot, 36, through-hole, 37, close mesh gauze, 38, pneumatic actuator, 39, dielectric cavity, 40, piston, 41, lifter, 42, water inlet pipe,
43, water tank, the 44, first lead screw, the 45, first upper locking nut, the 46, first lower locking nut, the 47, second lead screw, on 48, second
Locking nut, the 49, second lower locking nut, 50, workbench.
Specific embodiment
Embodiment 1
A kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ, including air compressor 1 and rack 2, in rack 2
It is provided with moving beam 3, further includes gas control cabinet 4, axis pressure loading device 5, pore pressure loading device 6, confining pressure loading device 7, original position
Drying unit 8, metering device 9 and the pressure chamber 10 for placing sample, the pressure chamber 10 are held including top cover 11, organic glass
Pressure cylinder 12 and pedestal 13, the upper end detachable connection of top cover 11 and organic glass pressure-bearing cylinder 12, pedestal 13 are held with organic glass
The lower end detachable connection of pressure cylinder 12 is connected with first row air valve 14 on the top cover 11, is provided with seepage exit on pedestal 13,
It is connected with second row air valve 15 on pedestal 13, flowing water Valve 16, the inner wall of organic glass pressure-bearing cylinder 12 are connected on seepage exit
Space between sample forms confining pressure chamber 17, and circular support 18, circle branch are fixed on the inner wall of organic glass pressure-bearing cylinder 12
Frame 18 is located in confining pressure chamber 17；The platen 19 for compressing sample is provided in the pressure chamber 10；Setting in the gas control cabinet 4
There is PLC controller 20, the axis pressure loading device 5 calms the anger including pressurized cylinder 21, axis and controls proportioning valve 22, axis pressure pipe road, load
Sensor 23 and displacement sensor 24, load transducer 23 are connect with the piston rod of pressurized cylinder 21, and pressurized cylinder 21 is placed in shifting
The center of dynamic crossbeam 3, the pressurized cylinder 21 is calmed the anger with axis to be controlled proportioning valve 22 and presses piping connection by axis, and the PLC is controlled
Device 20 processed is calmed the anger with axis respectively to be controlled proportioning valve 22, load transducer 23 and displacement sensor 24 and is electrically connected；The pore pressure load dress
6 are set, for applying water pressure and seepage pressure into pressure chamber 10, pore pressure loading device 6 includes pore pressure pressure cylinder 25, pore pressure pipe
Road, medium cylinder 26 and pore pressure Pneumatic control proportioning valve 27, pore pressure pressure cylinder 25 by pore pressure pipe road respectively with pore pressure Pneumatic control proportioning valve 27
It is connected with medium cylinder 26, medium cylinder 26 is connect by pipeline with pressure chamber 10；The confining pressure loading device 7 includes confining pressure gas control ratio
Example valve 28, confining pressure pipeline and pressure sensor 29, pressure sensor 29 are arranged on the pedestal 13 of pressure chamber 10, confining pressure gas control ratio
Example valve 28 is connect by confining pressure pipeline with pressure chamber 10, and confining pressure Pneumatic control proportioning valve 28 and pressure sensor 29 are controlled with PLC respectively
Device 20 is electrically connected；The original position drying unit 8 includes resistive heater 30 and temperature control instrument 31, and resistive heater 30 is fixed on circle
On shape bracket 18, resistive heater 30 is electrically connected with temperature control instrument 31；The metering device 9 includes water collector 32, weighing and sensing
Device 33 and quality show that table 34, water collector 32 are located at 10 lower section of pressure chamber, and water collector 32 is placed on weighing sensor 33, the title
It retransmits sensor 33 and shows that table 34 and PLC controller 20 are electrically connected with quality respectively.
The present embodiment is most basic embodiment, and pressure chamber includes top cover, organic glass pressure-bearing cylinder and pedestal, on top cover
It is connected with first row air valve, seepage exit is provided on pedestal, second row air valve is connected on pedestal, is connected with out on seepage exit
Penstock, space between the inner wall and sample of organic glass pressure-bearing cylinder form confining pressure chamber, on the inner wall of organic glass pressure-bearing cylinder
It is fixed with circular support, it is intracavitary that circular support is located at confining pressure；The platen for compressing sample is provided in pressure chamber；In gas control cabinet
Be provided with PLC controller, axis pressure loading device include pressurized cylinder, axis calm the anger control proportioning valve, axis pressure pipe road, load transducer and
The piston rod of displacement sensor, load transducer and pressurized cylinder connects, and pressurized cylinder is placed in the center of moving beam, adds
Air cylinder and axis, which are calmed the anger, controls proportioning valve by axis pressure piping connection, and PLC controller is calmed the anger with axis respectively controls proportioning valve, load sensing
Device and displacement sensor electrical connection；Pore pressure loading device, for applying water pressure and seepage pressure, pore pressure load into pressure chamber
Device includes that pore pressure pressure cylinder, pore pressure pipeline, medium cylinder and pore pressure Pneumatic control proportioning valve, pore pressure pressure cylinder are distinguished by pore pressure pipe road
It is connect with pore pressure Pneumatic control proportioning valve and medium cylinder, medium cylinder is connect by pipeline with pressure chamber；Confining pressure loading device includes confining pressure
Pneumatic control proportioning valve, confining pressure pipeline and pressure sensor, pressure sensor are arranged on the pedestal of pressure chamber, confining pressure Pneumatic control proportioning valve
It is connect by confining pressure pipeline with pressure chamber, confining pressure Pneumatic control proportioning valve and pressure sensor are electrically connected with PLC controller respectively；It is in situ
Drying unit includes resistive heater and temperature control instrument, and resistive heater is fixed on circular support, resistive heater and temperature control
Instrument electrical connection；Metering device includes that water collector, weighing sensor and quality display table, water collector are placed on weighing sensor,
Weighing sensor shows that table and PLC controller are electrically connected with quality respectively, compared with the prior art, passes through the PLC in gas control cabinet
Controller carries out axis pressure closed-loop control, pore pressure closed-loop control and confining pressure closed loop control to the sample being placed in osmometer pressure chamber
System, realizes multi- scenarios method, is more in line with actual conditions；And can be realized drying and the measurement of sample humidity in situ, it is existing
It needs to take out sample in technology and be dried, destructible sample integrality influences permeability test accuracy, not by drying in situ
Only can during guarantee test sample structure integrality, effectively react actual conditions, and then ensure the standard of sample infiltration
True property, and working strength is reduced, save the time；In the measurement of sample humidity, generallys use and be inserted into the sample
Or it is embedded to measurement of water-content coefficient probe in advance, and this mode can directly destroy sample structure, and cause permeability test inaccurate,
The utility model shows table by the way that weighing sensor and quality are arranged below pressure chamber, and number shows that real-time weight change is come
It determines its unsaturated state, can be realized the real-time monitoring to its moisture content to determine when that the drying to sample can be stopped,
The accuracy of sample infiltration is ensured.
Embodiment 2
A kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ, including air compressor 1 and rack 2, in rack 2
It is provided with moving beam 3, further includes gas control cabinet 4, axis pressure loading device 5, pore pressure loading device 6, confining pressure loading device 7, original position
Drying unit 8, metering device 9 and the pressure chamber 10 for placing sample, the pressure chamber 10 are held including top cover 11, organic glass
Pressure cylinder 12 and pedestal 13, the upper end detachable connection of top cover 11 and organic glass pressure-bearing cylinder 12, pedestal 13 are held with organic glass
The lower end detachable connection of pressure cylinder 12 is connected with first row air valve 14 on the top cover 11, is provided with seepage exit on pedestal 13,
It is connected with second row air valve 15 on pedestal 13, flowing water Valve 16, the inner wall of organic glass pressure-bearing cylinder 12 are connected on seepage exit
Space between sample forms confining pressure chamber 17, and circular support 18, circle branch are fixed on the inner wall of organic glass pressure-bearing cylinder 12
Frame 18 is located in confining pressure chamber 17；The platen 19 for compressing sample is provided in the pressure chamber 10；Setting in the gas control cabinet 4
There is PLC controller 20, the axis pressure loading device 5 calms the anger including pressurized cylinder 21, axis and controls proportioning valve 22, axis pressure pipe road, load
Sensor 23 and displacement sensor 24, load transducer 23 are connect with the piston rod of pressurized cylinder 21, and pressurized cylinder 21 is placed in shifting
The center of dynamic crossbeam 3, the pressurized cylinder 21 is calmed the anger with axis to be controlled proportioning valve 22 and presses piping connection by axis, and the PLC is controlled
Device 20 processed is calmed the anger with axis respectively to be controlled proportioning valve 22, load transducer 23 and displacement sensor 24 and is electrically connected；The pore pressure load dress
6 are set, for applying water pressure and seepage pressure into pressure chamber 10, pore pressure loading device 6 includes pore pressure pressure cylinder 25, pore pressure pipe
Road, medium cylinder 26 and pore pressure Pneumatic control proportioning valve 27, pore pressure pressure cylinder 25 by pore pressure pipe road respectively with pore pressure Pneumatic control proportioning valve 27
It is connected with medium cylinder 26, medium cylinder 26 is connect by pipeline with pressure chamber 10；The confining pressure loading device 7 includes confining pressure gas control ratio
Example valve 28, confining pressure pipeline and pressure sensor 29, pressure sensor 29 are arranged on the pedestal 13 of pressure chamber 10, confining pressure gas control ratio
Example valve 28 is connect by confining pressure pipeline with pressure chamber 10, and confining pressure Pneumatic control proportioning valve 28 and pressure sensor 29 are controlled with PLC respectively
Device 20 is electrically connected；The original position drying unit 8 includes resistive heater 30 and temperature control instrument 31, and resistive heater 30 is fixed on circle
On shape bracket 18, resistive heater 30 is electrically connected with temperature control instrument 31；The metering device 9 includes water collector 32, weighing and sensing
Device 33 and quality show that table 34, water collector 32 are located at 10 lower section of pressure chamber, and water collector 32 is placed on weighing sensor 33, the title
It retransmits sensor 33 and shows that table 34 and PLC controller 20 are electrically connected with quality respectively.
It is opened on the pedestal 13 of the pressure chamber 10 there are three the station slot 35 for installing sample, three station slots 35 are in three
Angular arrangement.
It is provided with multiple through-holes 36 on the station slot 35 of the pedestal 13, close mesh gauze 37 is fixedly connected on station slot 35.
The present embodiment is a better embodiment, is opened on the pedestal of pressure chamber there are three the station slot for installing sample,
Three station slots are triangularly arranged, and can test simultaneously three samples, ensure that the same of companion specimens experimental condition
One property has greatly saved the time in the case where ensureing infiltration accuracy.
It is provided with multiple through-holes on the station slot of pedestal, close mesh gauze is fixedly connected on station slot, it can not only be smoothly
Draining, and water can be made to carry fine grained outflow, particle number of dropouts is recorded convenient for weighing sensor.
Embodiment 3
A kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ, including air compressor 1 and rack 2, in rack 2
It is provided with moving beam 3, further includes gas control cabinet 4, axis pressure loading device 5, pore pressure loading device 6, confining pressure loading device 7, original position
Drying unit 8, metering device 9 and the pressure chamber 10 for placing sample, the pressure chamber 10 are held including top cover 11, organic glass
Pressure cylinder 12 and pedestal 13, the upper end detachable connection of top cover 11 and organic glass pressure-bearing cylinder 12, pedestal 13 are held with organic glass
The lower end detachable connection of pressure cylinder 12 is connected with first row air valve 14 on the top cover 11, is provided with seepage exit on pedestal 13,
It is connected with second row air valve 15 on pedestal 13, flowing water Valve 16, the inner wall of organic glass pressure-bearing cylinder 12 are connected on seepage exit
Space between sample forms confining pressure chamber 17, and circular support 18, circle branch are fixed on the inner wall of organic glass pressure-bearing cylinder 12
Frame 18 is located in confining pressure chamber 17；The platen 19 for compressing sample is provided in the pressure chamber 10；Setting in the gas control cabinet 4
There is PLC controller 20, the axis pressure loading device 5 calms the anger including pressurized cylinder 21, axis and controls proportioning valve 22, axis pressure pipe road, load
Sensor 23 and displacement sensor 24, load transducer 23 are connect with the piston rod of pressurized cylinder 21, and pressurized cylinder 21 is placed in shifting
The center of dynamic crossbeam 3, the pressurized cylinder 21 is calmed the anger with axis to be controlled proportioning valve 22 and presses piping connection by axis, and the PLC is controlled
Device 20 processed is calmed the anger with axis respectively to be controlled proportioning valve 22, load transducer 23 and displacement sensor 24 and is electrically connected；The pore pressure load dress
6 are set, for applying water pressure and seepage pressure into pressure chamber 10, pore pressure loading device 6 includes pore pressure pressure cylinder 25, pore pressure pipe
Road, medium cylinder 26 and pore pressure Pneumatic control proportioning valve 27, pore pressure pressure cylinder 25 by pore pressure pipe road respectively with pore pressure Pneumatic control proportioning valve 27
It is connected with medium cylinder 26, medium cylinder 26 is connect by pipeline with pressure chamber 10；The confining pressure loading device 7 includes confining pressure gas control ratio
Example valve 28, confining pressure pipeline and pressure sensor 29, pressure sensor 29 are arranged on the pedestal 13 of pressure chamber 10, confining pressure gas control ratio
Example valve 28 is connect by confining pressure pipeline with pressure chamber 10, and confining pressure Pneumatic control proportioning valve 28 and pressure sensor 29 are controlled with PLC respectively
Device 20 is electrically connected；The original position drying unit 8 includes resistive heater 30 and temperature control instrument 31, and resistive heater 30 is fixed on circle
On shape bracket 18, resistive heater 30 is electrically connected with temperature control instrument 31；The metering device 9 includes water collector 32, weighing and sensing
Device 33 and quality show that table 34, water collector 32 are located at 10 lower section of pressure chamber, and water collector 32 is placed on weighing sensor 33, the title
It retransmits sensor 33 and shows that table 34 and PLC controller 20 are electrically connected with quality respectively.
It is opened on the pedestal 13 of the pressure chamber 10 there are three the station slot 35 for installing sample, three station slots 35 are in three
Angular arrangement.
It is provided with multiple through-holes 36 on the station slot 35 of the pedestal 13, close mesh gauze 37 is fixedly connected on station slot 35.
The pore pressure pressure cylinder 25 includes pneumatic actuator 38, dielectric cavity 39 and piston 40, and piston 40 is located at dielectric cavity 39
Interior, piston 40 is connect with pneumatic actuator 38, and pneumatic actuator 38 is connect with pore pressure Pneumatic control proportioning valve 27.
The pore pressure pressure cylinder 25 and medium cylinder 26 are two, and two pore pressure pressure cylinders 25 and two medium cylinders 26 are arranged side by side
It is arranged in gas control cabinet 4.
The present embodiment is another better embodiment, and pore pressure pressure cylinder includes pneumatic actuator, dielectric cavity and piston, piston
In dielectric cavity, piston is connect with pneumatic actuator, and pneumatic actuator is connect with pore pressure Pneumatic control proportioning valve, is convenient for pore pressure gas control
Proportional valve control pneumatic actuator, pushes piston, and the space of piston press dielectric cavity forms pressure, is easily formed pore pressure closed loop control
System applies water pressure and seepage pressure into pressure chamber so as to more convenient, improves permeability test and operate convenience.
Pore pressure pressure cylinder and medium cylinder are two, and two pore pressure pressure cylinders and two medium cylinders are arranged in parallel at gas control cabinet
It is interior, during applying seepage pressure, it is possible to the case where water consumption that the water in medium cylinder is unsatisfactory for permeability test occur, i.e.,
When the piston reciprocating in medium cylinder is primary, is unsatisfactory for infiltration institute's expense, redundancy is realized by two pore pressure pressure cylinders in parallel,
When first pore pressure pressure cylinder is pressurized, second pore pressure pressure cylinder water suction, when the water of first fluid chamber will be inadequate, by
Second pore pressure pressure cylinder takes over the pressurization of first pore pressure pressure cylinder, and first pore pressure pressure cylinder absorbs water waiting again, two holes
Pressure pressure cylinder and so on can reach without manual operation, and whole process is completed two pore pressure pressure cylinders by PLC controller
Switching, so as to which the continuity of process of osmosis is effectively ensured.
Embodiment 4
A kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ, including air compressor 1 and rack 2, in rack 2
It is provided with moving beam 3, further includes gas control cabinet 4, axis pressure loading device 5, pore pressure loading device 6, confining pressure loading device 7, original position
Drying unit 8, metering device 9 and the pressure chamber 10 for placing sample, the pressure chamber 10 are held including top cover 11, organic glass
Pressure cylinder 12 and pedestal 13, the upper end detachable connection of top cover 11 and organic glass pressure-bearing cylinder 12, pedestal 13 are held with organic glass
The lower end detachable connection of pressure cylinder 12 is connected with first row air valve 14 on the top cover 11, is provided with seepage exit on pedestal 13,
It is connected with second row air valve 15 on pedestal 13, flowing water Valve 16, the inner wall of organic glass pressure-bearing cylinder 12 are connected on seepage exit
Space between sample forms confining pressure chamber 17, and circular support 18, circle branch are fixed on the inner wall of organic glass pressure-bearing cylinder 12
Frame 18 is located in confining pressure chamber 17；The platen 19 for compressing sample is provided in the pressure chamber 10；Setting in the gas control cabinet 4
There is PLC controller 20, the axis pressure loading device 5 calms the anger including pressurized cylinder 21, axis and controls proportioning valve 22, axis pressure pipe road, load
Sensor 23 and displacement sensor 24, load transducer 23 are connect with the piston rod of pressurized cylinder 21, and pressurized cylinder 21 is placed in shifting
The center of dynamic crossbeam 3, the pressurized cylinder 21 is calmed the anger with axis to be controlled proportioning valve 22 and presses piping connection by axis, and the PLC is controlled
Device 20 processed is calmed the anger with axis respectively to be controlled proportioning valve 22, load transducer 23 and displacement sensor 24 and is electrically connected；The pore pressure load dress
6 are set, for applying water pressure and seepage pressure into pressure chamber 10, pore pressure loading device 6 includes pore pressure pressure cylinder 25, pore pressure pipe
Road, medium cylinder 26 and pore pressure Pneumatic control proportioning valve 27, pore pressure pressure cylinder 25 by pore pressure pipe road respectively with pore pressure Pneumatic control proportioning valve 27
It is connected with medium cylinder 26, medium cylinder 26 is connect by pipeline with pressure chamber 10；The confining pressure loading device 7 includes confining pressure gas control ratio
Example valve 28, confining pressure pipeline and pressure sensor 29, pressure sensor 29 are arranged on the pedestal 13 of pressure chamber 10, confining pressure gas control ratio
Example valve 28 is connect by confining pressure pipeline with pressure chamber 10, and confining pressure Pneumatic control proportioning valve 28 and pressure sensor 29 are controlled with PLC respectively
Device 20 is electrically connected；The original position drying unit 8 includes resistive heater 30 and temperature control instrument 31, and resistive heater 30 is fixed on circle
On shape bracket 18, resistive heater 30 is electrically connected with temperature control instrument 31；The metering device 9 includes water collector 32, weighing and sensing
Device 33 and quality show that table 34, water collector 32 are located at 10 lower section of pressure chamber, and water collector 32 is placed on weighing sensor 33, the title
It retransmits sensor 33 and shows that table 34 and PLC controller 20 are electrically connected with quality respectively.
It is opened on the pedestal 13 of the pressure chamber 10 there are three the station slot 35 for installing sample, three station slots 35 are in three
Angular arrangement.
It is provided with multiple through-holes 36 on the station slot 35 of the pedestal 13, close mesh gauze 37 is fixedly connected on station slot 35.
The pore pressure pressure cylinder 25 includes pneumatic actuator 38, dielectric cavity 39 and piston 40, and piston 40 is located at dielectric cavity 39
Interior, piston 40 is connect with pneumatic actuator 38, and pneumatic actuator 38 is connect with pore pressure Pneumatic control proportioning valve 27.
The pore pressure pressure cylinder 25 and medium cylinder 26 are two, and two pore pressure pressure cylinders 25 and two medium cylinders 26 are arranged side by side
It is arranged in gas control cabinet 4.
It is provided with lifter 41 and water inlet pipe 42 on the outer wall of the gas control cabinet 4, water tank 43 is fixed on lifter 41, into
One end of water pipe 42 is connect with water tank 43, and the other end of water inlet pipe 42 is connected with the pipeline between medium cylinder 26 and pressure chamber 10.
The rack 2 include the first lead screw 44, the first upper locking nut 45, the first lower locking nut 46, the second lead screw 47,
Second upper locking nut 48, the second lower locking nut 49 and workbench 50, one end of moving beam 3 pass through the first lead screw 44 and lead to
The first upper locking nut 45 and the locking of the first lower locking nut 46 are crossed, the other end passes through the second lead screw 47 and passes through and locks on second
Nut 48 and the locking of the second lower locking nut 49, the lower end of the lower end of the first lead screw 44 and the second lead screw 47 respectively with workbench 50
It is fixedly connected.
Multiple apertures are provided on the platen 19, multiple apertures are evenly distributed on platen 19.
The present embodiment is preferred forms, and pressure chamber includes top cover, organic glass pressure-bearing cylinder and pedestal, is connected on top cover
There is first row air valve, seepage exit is provided on pedestal, second row air valve is connected on pedestal, is connected with outlet valve on seepage exit
Door, the space between the inner wall and sample of organic glass pressure-bearing cylinder form confining pressure chamber, fix on the inner wall of organic glass pressure-bearing cylinder
There is circular support, it is intracavitary that circular support is located at confining pressure；The platen for compressing sample is provided in pressure chamber；Setting in gas control cabinet
There is a PLC controller, axis pressure loading device includes that pressurized cylinder, axis calm the anger and control proportioning valve, axis pressure pipe road, load transducer and displacement
The piston rod of sensor, load transducer and pressurized cylinder connects, and pressurized cylinder is placed in the center of moving beam, and pressurize gas
Cylinder and axis, which are calmed the anger, controls proportioning valve by axis pressure piping connection, PLC controller calm the anger respectively with axis control proportioning valve, load transducer and
Displacement sensor electrical connection；Pore pressure loading device, for applying water pressure and seepage pressure, pore pressure loading device into pressure chamber
Including pore pressure pressure cylinder, pore pressure pipeline, medium cylinder and pore pressure Pneumatic control proportioning valve, pore pressure pressure cylinder by pore pressure pipe road respectively with hole
It calms the anger and controls proportioning valve and connected with medium cylinder, medium cylinder is connect by pipeline with pressure chamber；Confining pressure loading device includes confining pressure gas control
Proportioning valve, confining pressure pipeline and pressure sensor, pressure sensor are arranged on the pedestal of pressure chamber, and confining pressure Pneumatic control proportioning valve passes through
Confining pressure pipeline is connect with pressure chamber, and confining pressure Pneumatic control proportioning valve and pressure sensor are electrically connected with PLC controller respectively；Drying in situ
Device includes resistive heater and temperature control instrument, and resistive heater is fixed on circular support, resistive heater and temperature control instrument
Electrical connection；Metering device includes that water collector, weighing sensor and quality display table, water collector are placed on weighing sensor, weighing
Sensor shows that table and PLC controller are electrically connected with quality respectively, compared with the prior art, is controlled by the PLC in gas control cabinet
Device carries out axis pressure closed-loop control, pore pressure closed-loop control and confining pressure closed-loop control to the sample being placed in osmometer pressure chamber, real
Show multi- scenarios method, is more in line with actual conditions；And can be realized drying and the measurement of sample humidity in situ, in the prior art
It needs to take out sample to be dried, destructible sample integrality influences permeability test accuracy, can not only by drying in situ
The integrality of sample structure during guarantee test effectively reacts actual conditions, and then ensures the accuracy of sample infiltration, and
And working strength is reduced, save the time；In the measurement of sample humidity, generallys use and be inserted into or bury in advance in the sample
Enter measurement of water-content coefficient probe, this mode can directly destroy sample structure, cause permeability test inaccurate, this is practical new
Type shows table by the way that weighing sensor and quality are arranged below pressure chamber, and number shows real-time weight change to determine that its is non-
Saturation state can be realized the real-time monitoring to its moisture content to determine when that the drying to sample can be stopped, having ensured examination
The accuracy of sample infiltration.
Be provided with lifter and water inlet pipe on the outer wall of gas control cabinet, be fixed with water tank on lifter, one end of water inlet pipe with
Water tank connection, the other end of water inlet pipe is connected with the pipeline between medium cylinder and pressure chamber, since permeability test wants head
Ask, using outside gas control cabinet be arranged a water tank moving up and down, it will be able to the position of regulating tank, make water tank bottom with
Sample top flushes, and after sample drying and watering cycle, carries out conventional permeability test, record time and seepage discharge in this way
Saturation permeability coefficient is calculated, it is more convenient.
Rack includes locking screw on the first lead screw, the first upper locking nut, the first lower locking nut, the second lead screw, second
Female, the second lower locking nut and workbench, one end of moving beam pass through the first lead screw and by the first upper locking nut and the
The locking of one lower locking nut, the other end pass through the second lead screw and are locked by the second upper locking nut and the second lower locking nut,
The lower end of first lead screw and the lower end of the second lead screw are fixedly connected with workbench respectively, pass through the first lower lock below moving beam
Tight nut and the second lower locking nut adjust the level of moving beam, the first upper locking nut and second above moving beam
Upper locking nut fixes the position of moving beam, is capable of the stability of effective guarantee permeability test, is conducive to improve permeability test
Accuracy.
Multiple apertures are provided on platen, multiple apertures are evenly distributed on platen, and emission uniformity is good, are conducive to pressure chamber
It is interior to apply uniform water pressure and seepage pressure.
Claims (8)
1. a kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ, including air compressor (1) and rack (2), rack
(2) moving beam (3) are provided on, it is characterised in that: further include gas control cabinet (4), axis pressure loading device (5), pore pressure load dress
(6), confining pressure loading device (7), drying unit (8), metering device (9) and the pressure chamber (10) for placing sample in situ are set,
The pressure chamber (10) includes top cover (11), organic glass pressure-bearing cylinder (12) and pedestal (13), and top cover (11) is held with organic glass
The upper end detachable connection of pressure cylinder (12), the lower end detachable connection of pedestal (13) and organic glass pressure-bearing cylinder (12), institute
It states and is connected on top cover (11) first row air valve (14), seepage exit is provided on pedestal (13), pedestal is connected with second on (13)
Exhaust valve (15) is connected with flowing water Valve (16) on seepage exit, between the inner wall and sample of organic glass pressure-bearing cylinder (12)
Space forms confining pressure chamber (17), is fixed with circular support (18) on the inner wall of organic glass pressure-bearing cylinder (12), circular support (18)
In confining pressure chamber (17)；The platen (19) for compressing sample is provided in the pressure chamber (10)；In the gas control cabinet (4)
It is provided with PLC controller (20), axis pressure loading device (5) includes that pressurized cylinder (21), axis calm the anger and control proportioning valve (22), axis
Pressure pipe road, load transducer (23) and displacement sensor (24), the piston rod company of load transducer (23) and pressurized cylinder (21)
It connects, pressurized cylinder (21) is placed in the center of moving beam (3), and the pressurized cylinder (21) and axis, which are calmed the anger, controls proportioning valve (22)
Piping connection is pressed by axis, the PLC controller (20) is calmed the anger with axis respectively controls proportioning valve (22), load transducer (23) and position
Displacement sensor (24) electrical connection；The pore pressure loading device (6), for applying water pressure and seepage flow pressure into pressure chamber (10)
Power, pore pressure loading device (6) include pore pressure pressure cylinder (25), pore pressure pipeline, medium cylinder (26) and pore pressure Pneumatic control proportioning valve (27),
Pore pressure pressure cylinder (25) is connect with pore pressure Pneumatic control proportioning valve (27) and medium cylinder (26) respectively by pore pressure pipe road, medium cylinder (26)
It is connect by pipeline with pressure chamber (10)；The confining pressure loading device (7) include confining pressure Pneumatic control proportioning valve (28), confining pressure pipeline and
Pressure sensor (29), pressure sensor (29) are arranged on the pedestal (13) of pressure chamber (10), confining pressure Pneumatic control proportioning valve (28)
It is connect by confining pressure pipeline with pressure chamber (10), confining pressure Pneumatic control proportioning valve (28) and pressure sensor (29) are controlled with PLC respectively
Device (20) electrical connection；The original position drying unit (8) includes resistive heater (30) and temperature control instrument (31), resistive heater
(30) it is fixed on circular support (18), resistive heater (30) is electrically connected with temperature control instrument (31)；Metering device (9) packet
It includes water collector (32), weighing sensor (33) and quality and shows table (34), water collector (32) is located at below pressure chamber (10), catchments
Device (32) is placed on weighing sensor (33), and the weighing sensor (33) shows table (34) and PLC controller with quality respectively
(20) it is electrically connected.
2. a kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ according to claim 1, it is characterised in that: institute
It states and is opened on the pedestal (13) of pressure chamber (10) there are three the station slot (35) for installing sample, three station slots (35) are in triangle
Shape arrangement.
3. a kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ according to claim 2, it is characterised in that: institute
It states and is provided with multiple through-holes (36) on the station slot (35) of pedestal (13), close mesh gauze (37) is fixedly connected on station slot (35).
4. a kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ according to claim 1, it is characterised in that: institute
Stating pore pressure pressure cylinder (25) includes pneumatic actuator (38), dielectric cavity (39) and piston (40), and piston (40) is located at dielectric cavity
(39) in, piston (40) is connect with pneumatic actuator (38), and pneumatic actuator (38) is connect with pore pressure Pneumatic control proportioning valve (27).
5. a kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ according to claim 1, it is characterised in that: institute
It states pore pressure pressure cylinder (25) and medium cylinder (26) is two, two pore pressure pressure cylinders (25) and two medium cylinder (26) cloth arranged side by side
It sets in gas control cabinet (4).
6. a kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ according to claim 1, it is characterised in that: institute
It states and is provided with lifter (41) and water inlet pipe (42) on the outer wall of gas control cabinet (4), water tank (43) are fixed on lifter (41), into
One end of water pipe (42) is connect with water tank (43), between the other end and medium cylinder (26) and pressure chamber (10) of water inlet pipe (42)
Pipeline is connected.
7. a kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ according to claim 1, it is characterised in that: institute
State rack (2) include the first lead screw (44), the first upper locking nut (45), the first lower locking nut (46), the second lead screw (47),
One end of second upper locking nut (48), the second lower locking nut (49) and workbench (50), moving beam (3) passes through first
Thick stick (44) is simultaneously locked by the first upper locking nut (45) and the first lower locking nut (46), and the other end passes through the second lead screw (47)
And it is locked by the second upper locking nut (48) and the second lower locking nut (49), the lower end of the first lead screw (44) and the second lead screw
(47) lower end is fixedly connected with workbench (50) respectively.
8. a kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ according to claim 1, it is characterised in that: institute
It states and is provided with multiple apertures on platen (19), multiple apertures are evenly distributed on platen (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821942748.3U CN209372647U (en) | 2018-11-23 | 2018-11-23 | A kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821942748.3U CN209372647U (en) | 2018-11-23 | 2018-11-23 | A kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ |
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| Publication Number | Publication Date |
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| CN209372647U true CN209372647U (en) | 2019-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459367A (en) * | 2018-11-23 | 2019-03-12 | 成都理工大学 | A kind of permeating method for realizing multi- scenarios method and drying and watering cycle in situ |
| CN109459368A (en) * | 2018-11-23 | 2019-03-12 | 成都理工大学 | A kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ |
| CN110426337A (en) * | 2019-08-30 | 2019-11-08 | 长沙理工大学 | Rock And Soil seepage deformation test device and its test method under low-stress |
| CN112540038A (en) * | 2020-12-21 | 2021-03-23 | 滁州学院 | Test device and method for testing coupling permeability characteristics of geotextile and sandy soil |
| CN115876608A (en) * | 2023-03-09 | 2023-03-31 | 成都理工大学 | Rock-soil mechanics test device and method in-situ freeze thawing-dry-wet cycle environment |
-
2018
- 2018-11-23 CN CN201821942748.3U patent/CN209372647U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459367A (en) * | 2018-11-23 | 2019-03-12 | 成都理工大学 | A kind of permeating method for realizing multi- scenarios method and drying and watering cycle in situ |
| CN109459368A (en) * | 2018-11-23 | 2019-03-12 | 成都理工大学 | A kind of permeameter for realizing multi- scenarios method and drying and watering cycle in situ |
| CN109459368B (en) * | 2018-11-23 | 2023-12-29 | 成都理工大学 | Osmotic instrument for realizing multi-field coupling and in-situ dry-wet circulation |
| CN110426337A (en) * | 2019-08-30 | 2019-11-08 | 长沙理工大学 | Rock And Soil seepage deformation test device and its test method under low-stress |
| CN110426337B (en) * | 2019-08-30 | 2024-03-26 | 长沙理工大学 | Rock-soil body osmotic deformation testing device under low stress condition and testing method thereof |
| CN112540038A (en) * | 2020-12-21 | 2021-03-23 | 滁州学院 | Test device and method for testing coupling permeability characteristics of geotextile and sandy soil |
| CN115876608A (en) * | 2023-03-09 | 2023-03-31 | 成都理工大学 | Rock-soil mechanics test device and method in-situ freeze thawing-dry-wet cycle environment |
| CN115876608B (en) * | 2023-03-09 | 2023-05-16 | 成都理工大学 | Rock-soil mechanical test equipment and method in-situ freeze thawing-dry-wet circulating environment |
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