CN106442103A - Variable-temperature direct shear apparatus - Google Patents
Variable-temperature direct shear apparatus Download PDFInfo
- Publication number
- CN106442103A CN106442103A CN201610521813.4A CN201610521813A CN106442103A CN 106442103 A CN106442103 A CN 106442103A CN 201610521813 A CN201610521813 A CN 201610521813A CN 106442103 A CN106442103 A CN 106442103A
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- temperature
- refrigeration
- bulk material
- controller
- heating
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
Abstract
The invention discloses a variable-temperature direct shear apparatus. A variable-temperature box comprises a foam plate, temperature sensing elements, a heating device, a refrigerating device and a temperature control system. The temperature sensing elements comprise a refrigerating temperature measuring sensor and a heating temperature measuring sensor. The refrigerating temperature measuring sensor is arranged on the side, facing a bottom plate, of a phenolic aldehyde foam top plate and electrically connected with the temperature control system. The heating temperature measuring sensor is arranged on the side, facing the top plate, of the phenolic aldehyde foam bottom plate and electrically connected with the temperature control system. A shell covers the control system and the temperature measuring sensors, and then the control system and the temperature measuring sensors are isolated from an inner cavity of the variable-temperature box. According to the variable-temperature box, the temperature control system and the temperature measuring sensors are sleeved with the shell, and it is avoided that the temperature sensing elements are affected by high and low temperature environments in the variable-temperature box. The temperature measuring sensors are used for sensing the temperature, the temperature is adjusted to the needed temperature through the temperature control system, and the influence degree of temperatures on experiments at different temperatures can be experimentally studied.
Description
Technical field
The present invention relates to a kind of civil engineering material shearing experiment instrument, particularly relate to a kind of direct shear apparatus, be applied to soil
Wood engineering material experiment field of measuring technique.
Background technology
In general, constant temperature direct shear apparatus is typically all used when we carry out the shearing experiment of geomembrane.Constant temperature direct shear apparatus is main
Including：Vertical loading device, vertical loading frame, upper shear box, offset table, loadometer, horizontal loading apparatus and down cut box
Etc. part.And device can only be tested at a constant temperature.But the degradation process of tradition landfill yard rubbish, it is one and enter simultaneously
Go physics, chemistry and the complexity of biological respinse and very long process, substantial amounts of heat energy can be produced within this stage, cause rubbish
Rubbish landfill yard heats up.Most research data shows in the world：Temperature in garbage loading embeading body is between 20 DEG C ~ 80 DEG C, simultaneously
Considering the situation about exposing of geomembrane, temperature range is-20 DEG C ~ 80 DEG C.In order to study the liner system interface of refuse landfill
Intensity, both at home and abroad many scholar's research shearing experiment instrument, has improvement direct shear apparatus, large direct shear apparatus, a torsion ring direct shear apparatus
With swash plate instrument etc., but this several direct shear apparatuses are tested all at normal temperatures, also do not have the one can be at temperature match curing conditions
Under do the direct shear apparatus tested.
Content of the invention
In order to solve prior art problem, it is an object of the invention to the deficiency overcoming prior art to exist, one is provided
Alternating temperature direct shear apparatus, transforms on the basis of original constant temperature direct shear apparatus, can study different geosynthetics at different temperatures
Interface and the mechanical and physical character at geosynthetics and granular materials interface.
Create purpose for reaching foregoing invention, use following technical proposals：
A kind of alternating temperature direct shear apparatus, including power supply and shear box, power supply is each module for power supply of alternating temperature direct shear apparatus, outside shear box
Being provided with heating and refrigeration system, forming insulation outer layer at shear box outer wrap bulk material plate, insulation outer layer is by loosening
Material top board, bulk material base plate and bulk material side plate assembly and connection form box-type shell structure, heating system mainly by
Heat temperature transducer, heat temperature controller and heating combined equipment composition heat Circuits System, heat temperature controller and be arranged on bulk material
On top board, heat temperature transducer and embed and be arranged in bulk material base plate and towards the bottom of shear box, heat temperature transducers
Temperature in shear box is measured by device, heats the signal output part of temperature transducer and heats the signal receiving end of temperature controller
Connect, the command signal output heating temperature controller is connected with the signal receiving end of heating combined equipment, the hot junction of heating combined equipment with cut
Cut box and carry out heat transmission, make the temperature in shear box raise, when the temperature in the shear box heating temperature transducer measurement reaches
During to setting value, heating temperature controller control heating combined equipment and quitting work, refrigeration system is mainly by refrigeration temperature transducer, refrigeration temperature
Control device and refrigerating plant composition refrigeration circuit system, refrigerating plant and heating combined equipment are separately mounted to the left and right sides of shear box
On bulk material surface of side plate or be arranged in bulk material side plate, refrigeration temp.-controller is also disposed on bulk material top board,
Refrigeration temperature transducer embeds and is arranged in bulk material top board and towards the top of shear box, and refrigeration temperature transducer is also to cutting
The temperature cut in box measures, and the signal output part of refrigeration temperature transducer is connected with the signal receiving end of refrigeration temp.-controller,
The command signal output of refrigeration temp.-controller is connected with the signal receiving end of refrigerating plant, and cold end and the shear box of refrigerating plant enter
Row heat transmits, and makes the temperature in shear box reduce, when the temperature in the shear box of refrigeration temperature transducer measurement reaches to set
During value, refrigeration temp.-controller control refrigerating plant quits work.
Above-mentioned heating combined equipment preferably employs electric heating body, it is preferred to use heats miniature circuit breaker and leads to heating Circuits System
Break and be controlled, heat miniature circuit breaker and be arranged at the outside of bulk material side plate, heat the command signal output of temperature controller
It is connected with the signal receiving end heating miniature circuit breaker.
Above-mentioned electric heating body preferably employs electric heating tube, electrically-heated coil or electric hot tray.
Above-mentioned refrigerating plant preferably employs refrigeration machine, it is preferred to use the refrigeration break-make to refrigeration circuit system for the miniature circuit breaker
Being controlled, refrigeration miniature circuit breaker is arranged at the outside of bulk material side plate, the command signal output of refrigeration temp.-controller with
The signal receiving end of refrigeration miniature circuit breaker connects.
Above-mentioned refrigeration machine preferably employs refrigeration compressor or semiconductor refrigerating module.
Above-mentioned bulk material top board, above-mentioned bulk material base plate and above-mentioned bulk material side plate all preferably employ phenol formaldehyde foam
Plate is made.
Above-mentioned refrigeration temp.-controller and the above-mentioned temperature controller that heats are preferably integrated in a temperature control module formation temperature master control dress
Put.
Above-mentioned refrigeration temp.-controller and the above-mentioned temperature controller that heats preferably employ special miniature circuit breaker respectively to control signal
The break-make of output circuit is controlled, and miniature circuit breaker is preferably disposed on the outside of bulk material top board.
Above-mentioned refrigeration temp.-controller and the above-mentioned temperature controller that heats preferably are opened by special two conversions of current branch also respectively
Close and be connected with one end of a control signal output circuit miniature circuit breaker, another of control signal output circuit miniature circuit breaker
End simultaneously with heat circuit and refrigeration circuit is connected, by controlling two position conversion switch, heating mode and refrigeration mode are selected
Selecting, control signal output circuit miniature circuit breaker is preferably disposed on the outside of bulk material top board.
The present invention compared with prior art, has following obvious prominent substantive distinguishing features and remarkable advantage：
1. temperature control system and temperature transducer are located in bulk material plate by the alternating temperature case of the present invention, it is to avoid temperature-sensing element is subject to
High and low temperature environment impact in alternating temperature case；
2. the present invention utilizes temperature transducer sense temperature, is then adjusted to temperature by temperature control system, can be in different temperatures
The influence degree to experiment for the lower experimental study temperature；
3. the miniature circuit breaker of the present invention is embedded at the outside of phenolic foam board, it is ensured that the security of instrument；
4. alternating temperature direct shear apparatus of the present invention is in direct shear test, can according to different temperatures, study different geosynthetics interface with
And the performance at geosynthetics and granular materials interface.
Brief description
Fig. 1 is the structural representation of the alternating temperature case part of the alternating temperature direct shear apparatus of the embodiment of the present invention one.
Fig. 2 is the A direction view of Fig. 1.
Fig. 3 is the electrical block diagram of the alternating temperature case part of the alternating temperature direct shear apparatus of the embodiment of the present invention one.
Detailed description of the invention
Details are as follows for the preferred embodiments of the present invention：
Embodiment one：
In the present embodiment, seeing Fig. 1～3, a kind of alternating temperature direct shear apparatus, including power supply and shear box 6, power supply is alternating temperature direct shear apparatus
Each module for power supply, outside shear box 6, be provided with heating and refrigeration system, at shear box 6 outer wrap bulk material plate
Forming insulation outer layer, insulation outer layer is all used phenolic aldehyde to steep by bulk material top board the 3rd, bulk material base plate 4 and bulk material side plate 5
Foam plate is made, and mutual assembly and connection forms box-type shell structure, and the 2nd, heating system mainly heats by heating temperature transducer
Temperature controller 12 and heating combined equipment 7 composition heat Circuits System, heat temperature controller 12 and are arranged on bulk material top board 3, heat survey
Temperature sensor 2 is embedded be arranged on bulk material base plate 4 in and towards the bottom of shear box 6, heat temperature transducer 2 to shear box
Temperature in 6 measures, and the signal output part heating temperature transducer 2 is connected with the signal receiving end heating temperature controller 12,
The command signal output heating temperature controller 12 is connected with the signal receiving end of heating combined equipment 7, the hot junction of heating combined equipment 7 and shearing
Box 6 carries out heat transmission, makes the temperature in shear box 6 raise, the temperature in the shear box 6 heating temperature transducer 2 measurement
When reaching setting value, heating temperature controller 12 and controlling heating combined equipment 7 and quit work, refrigeration system is mainly by refrigeration temperature transducer the 1st,
Refrigeration temp.-controller 11 and refrigerating plant 10 form refrigeration circuit system, and refrigerating plant 10 and heating combined equipment 7 are separately mounted to shearing
On bulk material side plate 5 surface of the left and right sides of box 6 or be arranged in bulk material side plate 5, refrigeration temp.-controller 11 also sets
Put on bulk material top board 3, refrigeration temperature transducer 1 is embedded be arranged on bulk material top board 3 in and towards the top of shear box 6
Portion, the temperature in shear box 6 is also measured by refrigeration temperature transducer 1, the signal output part of refrigeration temperature transducer 1 and system
The signal receiving end of cold temperature controller 11 connects, and the command signal output of refrigeration temp.-controller 11 receives with the signal of refrigerating plant 10
End connects, and the cold end of refrigerating plant 10 and shear box 6 carry out heat transmission, makes the temperature in shear box 6 reduce, when refrigeration thermometric
When temperature in the shear box 6 of sensor 1 measurement reaches setting value, refrigeration temp.-controller 11 controls refrigerating plant 10 and quits work.
The alternating temperature case of the present embodiment alternating temperature direct shear apparatus includes cystosepiment, temperature-sensing element, heater 10 and refrigerating plant 7 and
Temperature control system, temperature-sensing element freezes temperature transducer 1 exactly and heats temperature transducer 2；Refrigeration temperature transducer 1 is arranged
At phenol formaldehyde foam top board towards the side of base plate, electrically connect with temperature control system；Heat temperature transducer 2 and be arranged on phenolic aldehyde bubble
Foam base plate, towards the side of top board, electrically connects with temperature control system；Jacket is located on control system and temperature transducer, makes
Both inner chamber isolation with alternating temperature case.The alternating temperature case of the present embodiment is set in temperature control system and temperature transducer in shell, keeps away
Having exempted from temperature-sensing element is affected by high and low temperature environment in alternating temperature case, is conducive to the carrying out of test；Utilize temperature transducer perception temperature
Degree, be then adjusted to temperature by temperature control system, can at different temperatures experimental study temperature to experiment influence degree.
In the present embodiment, seeing Fig. 1～3, heating combined equipment 7 uses electric heating tube, uses and heats miniature circuit breaker 8 to system
The break-make of heater circuit system is controlled, and heats miniature circuit breaker 8 and is arranged at the outside of bulk material side plate 5, heats temperature controller
The command signal output of 12 is connected with the signal receiving end heating miniature circuit breaker 8.Electric heating tube is embedded at phenolic foam board
Inner side, according to instruction reach to test required temperature；Heat miniature circuit breaker 8 and be embedded at the outside of phenolic foam board, it is ensured that
The security of instrument.
In the present embodiment, seeing Fig. 1～3, refrigerating plant 10 uses the refrigeration compressor of 2KW, uses refrigeration small-sized disconnected
The break-make to refrigeration circuit system for the road device 9 is controlled, and refrigeration miniature circuit breaker 9 is arranged at the outside of bulk material side plate 5, system
The command signal output of cold temperature controller 11 is connected with the signal receiving end of refrigeration miniature circuit breaker 9.Refrigeration compressor is embedded at
The outside of phenolic foam board, reaches to test required low temperature according to instruction；Heat miniature circuit breaker 8 and be embedded at phenolic foam board
Outside, it is ensured that the security of instrument.
In the present embodiment, seeing Fig. 1～3, refrigeration temp.-controller 11 passes through special electric current respectively with heating temperature controller 12
One end of branch road two position conversion switch and a control signal output circuit miniature circuit breaker connects, and control signal output circuit is little
The other end of type breaker simultaneously with heat circuit and refrigeration circuit is connected, by control two position conversion switch to heating mode with
Refrigeration mode selects, and control signal output circuit miniature circuit breaker is arranged at the outside of bulk material top board 3, conveniently carries out
The switching of cold and hot pattern selects, and improves the range of application of experiment.
The present embodiment is realized in：
Add an alternating temperature case in the outside of original direct shear apparatus main body.Added alternating temperature case includes the housing, sense that phenolic foam board makes
Temperature element, heating combined equipment 7 and refrigerating plant 10, temperature-sensing element is placed on phenolic foam board.Temperature-sensing element includes attemperating unit
And temperature transducer, attemperating unit is arranged on cystosepiment top board, for sensing the PT100 refrigeration temperature transducer 1 of temperature, adopts
It with the sensor chip of sensing temperature, is arranged on the side towards foam substrate for the foam top board, electrically connects with temperature control system, according to sense
Survey result and send temperature signal.PT100 for sensing temperature heats temperature transducer 2, uses the sensor chip of sensing temperature,
It is arranged on foam substrate towards the side of foam top board, electrically connects with temperature control system, send temperature signal according to sensing result.This
Embodiment is additionally provided with jacket and is located on attemperating unit system and each temperature transducer.
Embodiment two：
The present embodiment is essentially identical with embodiment one, is particular in that：
In the present embodiment, refrigeration temp.-controller 11 and heat temperature controller 12 and be respectively adopted special miniature circuit breaker to control signal
The break-make of output circuit is controlled, and miniature circuit breaker is arranged at the outside of bulk material top board 3.The present embodiment makes to heat circuit
Being independently controlled with refrigeration circuit, the switching conveniently carrying out cold and hot pattern selects, and improves the range of application of experiment.
Embodiment three：
The present embodiment is substantially the same as in the previous example, and is particular in that：
In the present embodiment, refrigeration temp.-controller 11 is integrated in a temperature control module formation temperature master control dress with heating temperature controller 12
Put.The present embodiment uses higher integrated level, and the Circuits System making alternating temperature direct shear apparatus is compacter, reduces preparation cost, and subtracts
The volume of few alternating temperature control part, structure is more reasonable.
Above in conjunction with accompanying drawing, the embodiment of the present invention is illustrated, but the invention is not restricted to above-described embodiment, all right
The purpose of the innovation and creation according to the present invention makes multiple change, under all Spirit Essences according to technical solution of the present invention and principle
Change, modification, replacement, combination or the simplification made, all should be the substitute mode of equivalence, as long as meeting the goal of the invention of the present invention,
Without departing from know-why and the inventive concept of alternating temperature direct shear apparatus of the present invention, broadly fall into protection scope of the present invention.
Claims (9)
1. an alternating temperature direct shear apparatus, including power supply and shear box（6）, described power supply is each module for power supply of alternating temperature direct shear apparatus, its
It is characterised by：At described shear box（6）Outside is provided with heating and refrigeration system, at described shear box（6）Outer wrap is dredged
Pine flitch forms insulation outer layer, and described insulation outer layer is by bulk material top board（3）, bulk material base plate（4）And bulk material
Side plate（5）Assembly and connection forms box-type shell structure, and described heating system is mainly by heating temperature transducer（2）, heat temperature
Control device（12）And heating combined equipment（7）Composition heats Circuits System, described heats temperature controller（12）It is arranged on described bulk material top
Plate（3）On, described heat temperature transducer（2）Embed and be arranged on described bulk material base plate（4）In and towards described shear box
（6）Bottom, described heat temperature transducer（2）To described shear box（6）Interior temperature measures, and the described thermometric that heats passes
Sensor（2）Signal output part with described heat temperature controller（12）Signal receiving end connect, described heat temperature controller（12）'s
Command signal output and described heating combined equipment（7）Signal receiving end connect, described heating combined equipment（7）Hot junction cut with described
Cut box（6）Carry out heat transmission, make described shear box（6）Interior temperature raises, and heats temperature transducer when described（2）Measurement
Described shear box（6）In temperature when reaching setting value, described heat temperature controller（12）Control described heating combined equipment（7）Stop work
Making, described refrigeration system is mainly by refrigeration temperature transducer（1）, refrigeration temp.-controller（11）And refrigerating plant（10）Composition refrigeration electricity
Road system, described refrigerating plant（10）With described heating combined equipment（7）It is separately mounted to described shear box（6）The left and right sides dredge
Pine side plates（5）On surface or be arranged on described bulk material side plate（5）In, described refrigeration temp.-controller（11）It is also disposed at
Described bulk material top board（3）On, described refrigeration temperature transducer（1）Embed and be arranged on described bulk material top board（3）Inside simultaneously
Towards described shear box（6）Top, described refrigeration temperature transducer（1）Also to described shear box（6）Interior temperature is surveyed
Amount, described refrigeration temperature transducer（1）Signal output part and refrigeration temp.-controller（11）Signal receiving end connect, described refrigeration
Temperature controller（11）Command signal output and described refrigerating plant（10）Signal receiving end connect, described refrigerating plant（10）
Cold end and described shear box（6）Carry out heat transmission, make described shear box（6）Interior temperature reduces, when described refrigeration thermometric
Sensor（1）The described shear box of measurement（6）When interior temperature reaches setting value, described refrigeration temp.-controller（11）Control described system
Device for cooling（10）Quit work.
2. alternating temperature direct shear apparatus according to claim 1, it is characterised in that：Described heating combined equipment（7）Use electric heating body, use
Heat miniature circuit breaker（8）The break-make heating Circuits System is controlled, heats miniature circuit breaker（8）It is arranged at bulk material
Side plate（5）Outside, described heat temperature controller（12）Command signal output with heat miniature circuit breaker（8）Signal receive
End connects.
3. alternating temperature direct shear apparatus according to claim 2, it is characterised in that：Described electric heating body uses electric heating tube, heating wire
Circle or electric hot tray.
4. alternating temperature direct shear apparatus according to claim 1, it is characterised in that：Described refrigerating plant（10）Use refrigeration machine, use
Refrigeration miniature circuit breaker（9）Being controlled the break-make of refrigeration circuit system, freeze miniature circuit breaker（9）It is arranged at bulk material
Side plate（5）Outside, described refrigeration temp.-controller（11）Command signal output with refrigeration miniature circuit breaker（9）Signal receive
End connects.
5. alternating temperature direct shear apparatus according to claim 4, it is characterised in that：Described refrigeration machine uses refrigeration compressor or semiconductor
Refrigeration module.
6. alternating temperature direct shear apparatus according to any one in Claims 1 to 5, it is characterised in that：Described bulk material top board
（3）, described bulk material base plate（4）With described bulk material side plate（5）Phenolic foam board is all used to make.
7. alternating temperature direct shear apparatus according to any one in Claims 1 to 5, it is characterised in that：Described refrigeration temp.-controller（11）
Heat temperature controller with described（12）It is integrated in a temperature control module formation temperature master control set.
8. alternating temperature direct shear apparatus according to any one in Claims 1 to 5, it is characterised in that：Described refrigeration temp.-controller（11）
Heat temperature controller with described（12）It is respectively adopted the break-make to control signal output circuit for the special miniature circuit breaker to be controlled,
Miniature circuit breaker is arranged at described bulk material top board（3）Outside.
9. alternating temperature direct shear apparatus according to any one in Claims 1 to 5, it is characterised in that：Described refrigeration temp.-controller（11）
Heat temperature controller with described（12）Respectively by special current branch two position conversion switch and a control signal output circuit
One end of miniature circuit breaker connects, the other end of control signal output circuit miniature circuit breaker simultaneously with heat circuit and refrigeration is electric
Road connects, and is selected heating mode and refrigeration mode by controlling two position conversion switch, and control signal output circuit is small-sized
Breaker is arranged at described bulk material top board（3）Outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521813.4A CN106442103A (en) | 2016-07-06 | 2016-07-06 | Variable-temperature direct shear apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521813.4A CN106442103A (en) | 2016-07-06 | 2016-07-06 | Variable-temperature direct shear apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106442103A true CN106442103A (en) | 2017-02-22 |
Family
ID=58183743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610521813.4A Pending CN106442103A (en) | 2016-07-06 | 2016-07-06 | Variable-temperature direct shear apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106442103A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374434A (en) * | 2018-09-05 | 2019-02-22 | 华北水利水电大学 | Asphalt concrete pavement material shearing performance test device |
| CN110146371A (en) * | 2019-04-26 | 2019-08-20 | 山东科技大学 | Heating and thermal insulation sleeve is loaded for large scale rock direct shear test |
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| CN203732379U (en) * | 2013-11-29 | 2014-07-23 | 广州航海学院 | Temperature-controlled pavement material shear apparatus |
| CN204808062U (en) * | 2015-06-29 | 2015-11-25 | 西安理工大学 | Special thermostated container of ground airglow formation of image interferometer |
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|---|---|---|---|---|
| KR20040075398A (en) * | 2003-02-20 | 2004-08-30 | 유효선 | Miniaturized shear-punch tester and evaluating method of shear strength and shear strain for solder joint |
| CN2919232Y (en) * | 2006-07-14 | 2007-07-04 | 长安大学 | Shearing apparatus in low temperature |
| CN102331375A (en) * | 2011-09-19 | 2012-01-25 | 国网电力科学研究院 | Thermal engine tester |
| CN103175743A (en) * | 2013-03-13 | 2013-06-26 | 张金荣 | Multifunctional shear apparatus for asphalt pavement |
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| CN109374434A (en) * | 2018-09-05 | 2019-02-22 | 华北水利水电大学 | Asphalt concrete pavement material shearing performance test device |
| CN110146371A (en) * | 2019-04-26 | 2019-08-20 | 山东科技大学 | Heating and thermal insulation sleeve is loaded for large scale rock direct shear test |
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Application publication date: 20170222 |
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