CN207007632U - The multi-functional staight scissors simple shear test system of temperature suction stress coupling - Google Patents
The multi-functional staight scissors simple shear test system of temperature suction stress coupling Download PDFInfo
- Publication number
- CN207007632U CN207007632U CN201720392470.6U CN201720392470U CN207007632U CN 207007632 U CN207007632 U CN 207007632U CN 201720392470 U CN201720392470 U CN 201720392470U CN 207007632 U CN207007632 U CN 207007632U
- Authority
- CN
- China
- Prior art keywords
- simple shear
- staight scissors
- transmission lever
- temperature
- shear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of multi-functional staight scissors simple shear test system of temperature suction stress coupling, it includes (5) five switch board (1), staight scissors simple shear apparatus (2), diffusion bubble flushing device (3), temperature control device (4) and computer parts, five described parts are attached by communications protocol, experiment process and data acquisition are controlled using computer (5), can also use switch board (1) to carry out Manual test control to staight scissors simple shear apparatus (2), diffusion bubble flushing device (3) and temperature control device (4).The utility model is applied to the soil shear strength experimental study under the effect of temperature suction stress coupling, the conventional consolidation, staight scissors, simple shear test of the soil body can not only be carried out, and can realize temperature, suction, stress and shearing wave multi- scenarios method effect under consolidation, staight scissors, simple shear test, soil shear strength, consolidation settlement characteristic and the soil-water characteristic curve under the conditions of varying environment can be studied.
Description
Technical field
It the utility model is related to a kind of multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, more particularly to one
Soil shear strength and the During Geotechnical Tests instrument of consolidation settlement characteristic under the conditions of kind test temperature-suction-stress multi- scenarios method.
Background technology
In Geotechnical Engineering, the shear behavior of earth working material embodies the ability of earth working material resistance failure by shear, to work
Journey design, there is important meaning for research.Generally, the research method of earth working material shear behavior can be divided into two classes：Original position is surveyed
Examination and laboratory test research, the former mainly includes static sounding, dynamic sounding, standard penetration test (SPT) and vane shear test
Deng, the engineering mechanics performance of the engineering original position soil body can be accurately determined, it is representative strong, but in-situ test is simpler, it is more
Establish on statistics experience and zonal relation, and obtained severity parameter value is mostly average value, it is difficult to show that material exists
Mechanical property change in engineer applied.
Indoors in experimental study, the research to earth working material shear behavior uses triaxial (test) method and direct shear test more
Method, stress state of the earth working material in Practical Project is simulated by shop test equipments such as triaxial apparatus and direct shear apparatuses as much as possible
And failure mode, determine its stress-strain behavior and shear behavior, triaxial test fado based on compression failure, failure mechanics with
Maximum shear stress is related, is an inclined plane, reflects the actual failure mode of the engineering soil body to a certain extent；Direct shear test method
In, due to the limitation of shear box, it is impossible to strictly control drainage condition, the stress and strain skewness inside sample, and try
The failure mechanics of sample are defined to the plane between upper and lower shear box, have larger limitation to the shear behavior for studying the soil body.
In Practical Project, the soil body such as embankment, side slope, ground is in simple shear state more, and triaxial (test) method and staight scissors try
The limitation of method due to testing equipment in itself is tested, the simple shear characteristic for embodying the soil body is difficult to during experiment.Wroth et al.
(1991) point out that simple shear test method is uniquely can appropriately to simulate the experiment, Airey D W et al. (1987 of Practical Project destruction
Year) shear strength parameter that is waited until by contrasting triaxial (test) method, it is found that the result of the test that simple shear test method obtains is more nearly
Vane shear test and back analysis result, wherein simple shear test method mainly carry out experimental study using simple shear apparatus.
Simple shear apparatus are mainly that the simple shear by upper and lower shear box and between upper and lower shear box folds ring group composition, are passed through
Simple shear folds the mutual changing of the relative positions between ring group in shear history, simulates the simple shear environment residing for earth working material.It is generally domestic seldom
Someone carries out the research of earth working material mechanical property, main cause using simple shear apparatus：First, simple shear mechanism is not perfect enough, second, existing
Some simple shear equipment is difficult to the test requirements document for meeting some special earth working materials, third, can not meet multi- scenarios method experimental study
Need, fourth, effective reception of shearing wave during simple shear test can not be realized, fifth, test efficiency is relatively low.
Utility model content
In view of the above-mentioned problems existing in the prior art, the purpose of this utility model is：A kind of temperature-suction-stress is provided
Multi-functional staight scissors simple shear test system is coupled, can meet that the needs of multi- scenarios method experiment carry out the shearing strength of the soil body and consolidated to sink
The experimental study of drop characteristic, water pipeline inside gas capacity produces to test measurement during being effectively reduced long term test
Error, by setting different water passages to efficiently control draining and suction condition during experiment, and be extended to
Multi-joint structure, the efficiency of experimental study is effectively improved, while shear box and the folded interannular frictional force of simple shear can be effectively reduced
Influence, and sample deviates influence to test accuracy.
To achieve the above object, the utility model adopts the following technical scheme that：
A kind of multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, it includes：Switch board, staight scissors simple shear
Instrument, diffusion bubble flushing device, temperature control device and computer, described switch board and staight scissors simple shear apparatus, temperature control device and calculating
Machine is connected, and staight scissors simple shear apparatus are connected with diffusion bubble flushing device and temperature control device.Can be to experiment process and number using computer
It is controlled according to collection, staight scissors simple shear apparatus, diffusion bubble flushing device temperature control device can be also tried manually using switch board
Test control.
Preferably, the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, it is described
Staight scissors simple shear apparatus include axial loading system, be horizontal to cutting system, balancing gate pit and support；
Described level is installed on support to cutting system and balancing gate pit, described horizontal to pass through the to cutting system
One transmission lever, the second transmission lever and the 3rd transmission lever are connected with balancing gate pit；
Described axial loading system is fixed on the top of balancing gate pit, by axial loading system to the sample in balancing gate pit
Apply axial compressive force, sample is in stress state, described level enters water-filling to cutting system to the sample inside balancing gate pit
Put down to shearing property.
Preferably, the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, it is described
Axial loading system include center-pole, vertical load sensor, cylinder piston, cylinder, high-precision digital-display table, digital display meter fixture
And cylinder frame；
Described cylinder is fixed on the top of cylinder frame, and cylinder interior is provided with cylinder piston, described cylinder piston, erected
It is sequentially connected and connects to load sensor and center-pole；
Described high-precision digital-display table is fixed on digital display meter fixture, and described digital display meter fixture is arranged on the top of balancing gate pit
Portion.
Preferably, the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, it is described
It is horizontal to cutting system include turbine worm reducer, the first transmission lever, the second transmission lever, first level load sensor,
Base, the first adjusting screw rod, the 3rd transmission lever, the second horizontal loading sensor and the second adjusting screw rod；
Described turbine worm reducer is connected by the first transmission lever with the side wall of down cut box；
On support, the upper and lower part of base is respectively arranged with the first adjusting screw rod and second and adjusted described floor installation
Screw rod is saved, described first level load sensor is arranged between the first adjusting screw rod and the second transmission lever, and described second
Horizontal loading sensor is arranged between the second adjusting screw rod and the 3rd transmission lever；
Described the 3rd transmission lever, the second horizontal loading sensor and the second adjusting screw rod is in same with the first transmission lever
On axis；
Described the second transmission lever and the 3rd transmission lever is connected by L-type connector with upper shear box respectively.
Preferably, the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, it is described
Balancing gate pit include pressure chamber upper cover, sealing side neck and pressure chamber base, described sealing side neck be located at pressure chamber upper cover and pressure
Between the base of power room；
Track is provided with described pressure chamber base；
Described pressure chamber upper cover center is provided with the first seal receptacle, and is separately installed with described sealing side neck
Two seal receptacles, the 3rd seal receptacle and the 4th seal receptacle；
(middle part is equipped with projection to described center-pole, the first transmission lever, the second transmission lever and the 3rd transmission lever, described
Center-pole, the first transmission lever, the second transmission lever and the 3rd transmission lever be each passed through the first seal receptacle, the second seal receptacle, the 3rd
Seal receptacle and the 4th seal receptacle；Projection point in the middle part of described center-pole, the first transmission lever, the second transmission lever and the 3rd transmission lever
Sealing cavity is not formed between the first seal receptacle, the second seal receptacle, the 3rd seal receptacle and the 4th seal receptacle, described sealing is empty
Chamber is connected by tracheae with the inside of balancing gate pit；
Bossing below center-pole is in contact with the sunk part of pressure cap.
Preferably, the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, it is described
The second seal receptacle, the operation principle of the 3rd seal receptacle and the 4th seal receptacle be：Described sealing cavity internal pressure P1With pressure
Power chamber internal pressure P2It is equal, due to sealing cavity internal pressure P1Effect, can offset pressure chamber internal pressure P2To center
Bar, the first transmission lever, the active force of the second transmission lever and the 3rd transmission lever, realize during experiment that vertical direction is vertical and net just should
The control of power and the measurement of the net shear stress of horizontal direction.
Preferably, the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, it is described
Shear box include upper shear box, down cut box and simple shear fold ring group, described down cut box is placed on the top of track, simple shear
Folded ring group is between down cut box and upper shear box；
In horizontal shear direction, down cut box, upper shear box and simple shear are folded the position that ring group three contacts with each other and are provided with
Slideway, and some steel balls are placed in slideway；
In horizontal shear direction, the top of down cut box is fixed with orientation ball, and the sphere for orienting ball folds ring with simple shear respectively
The side of group and upper shear box is in contact；
Transmitting flexure element, rectangle pottery clay plates and rectangular band are sequentially installed with inside described down cut box from center to border
Hole permeable stone, described rectangle permeable stone with holes are fixedly arranged above tabletting, and described rectangle pottery clay plates and rectangle are with holes permeable
Stone has been respectively arranged below spiral shape water passage and Rong Shui cavitys；Described spiral shape water passage and first passage and the
Two passages are connected, and described appearance water cavity is connected with third channel, described first passage, second channel and third channel
End be respectively arranged with the first high-pressure ball valve, the second high-pressure ball valve and the 3rd high-pressure ball valve.
Preferably, the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, it is described
Sample be located at down cut box, upper shear box and simple shear fold the inside of ring group, the top of sample is sequentially placed permeable stone and pressure-bearing
Lid, described specimen surface wrap up one layer of latex film, described latex film upper end, lower end be separately fixed at shear box, under cut
Cut on box；
Preferably, the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, along
The direction of motion of down cut box, described permeable stone bottom are provided with reception flexure element.
Preferably, the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, it is described
Temperature control device include water bath, the first temperature sensor, second temperature sensor, water-bath circulation copper pipe and insulation material
Material.
Preferably, the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, it is described
Staight scissors simple shear apparatus can be replaced tetrad staight scissors simple shear apparatus or multi-joint staight scissors simple shear apparatus, described tetrad staight scissors simple shear apparatus include
First staight scissors simple shear apparatus, the second staight scissors simple shear apparatus, the 3rd staight scissors simple shear apparatus and the 4th staight scissors simple shear apparatus, the first described staight scissors list
Instrument, the second staight scissors simple shear apparatus, the 3rd staight scissors simple shear apparatus and the 4th staight scissors simple shear apparatus are cut between each other by the first worm screw, shaft coupling
Device and the connection of the second worm screw.
Preferably, the operation of the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling
Method, the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling can carry out saturated soil experiment and unsaturated soil examination
Test, primary operational is：
When carrying out saturated soil staight scissors simple shear test, the first high-pressure ball valve and the second high-pressure ball valve are closed；
When carrying out unsaturated soil staight scissors simple shear test, the second high-pressure ball valve and the 3rd high-pressure ball valve are closed.
Preferably, the operation of the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling
Method, the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling can utilize the circulating liquid in water-bath circulation copper pipe
Temperature control is carried out to sample, heat preserving and insulating material is as balancing gate pit and extraneous heat-insulating heat-preserving material, the first temperature sensor
The temperature in balancing gate pit and sample is monitored and fed back respectively with second temperature sensor, by feeding back obtained temperature value
With experiment needed for temperature contrasted, controller unit operation.
Preferably, the operation of the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling
Method, the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling can effectively carry out the transmitting and reception of shearing wave,
Main operational steps are：
During simple shear test, computer or switch board will pass through the movement of the shear rate to experiment and down cut box
Displacement voluntarily judges the position of transmitting flexure element, and flexure element is received when on same axis when launching flexure element and first, will
Automatically turn on first and receive the reception that flexure element carries out shearing wave, when transmitting flexure element and second receive flexure element in same axle
When on line, the reception that the second reception flexure element carries out shearing wave is would automatically turn on, it is other the like, can be according to the needs of experiment
Setting receives the number of flexure element.
Preferably, the above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, it is described
The multi-functional staight scissors simple shear test system of temperature-suction-stress coupling can carry out tests below operation：
A, conventional saturation soil body simple shear, staight scissors, circulation shear experiment；
B, conventional unsaturation soil body simple shear, staight scissors, circulation shear experiment；
B, under Temperature-Stress (suction s=0) coupling condition, the simple shear of saturated soil, staight scissors, circulation shear experiment；
C, under the conditions of temperature-suction-stress coupling, the simple shear of unsaturated soil, staight scissors, circulation shear experiment；
D, in the presence of shearing wave, saturated soil Temperature-Stress (suction s=0) coupling simple shear, staight scissors, circulation shear examination
Test；
E, in the presence of shearing wave, unsaturated soil temperature-suction-stress coupling simple shear, staight scissors, circulation shear experiment；
F, under the conditions of temperature-suction-stress coupling, unsaturation consolidation moisture absorption dehumidification experiment, the measurement soil body is in different stress
Soil―structure interaction under state；
G, under Temperature-Stress (suction s=0) coupling condition, saturated soil consolidation test：Graded loading test, strain rate
The constant CRL consolidation tests of constant CRS consolidation tests, loading speed.
It is compared with the prior art, the beneficial effects of the utility model are：
1st, the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling described in the utility model uses special knot
The axial pressure center-pole and level of structure have effectively canceled out pressure chamber internal pressure centering core bar and transmission to shear transfer bar
The effect of bar so that test measurement obtains vertical net direct stress and the net shearing strength of horizontal direction, improves normal stress loading
The accuracy measured with level to shearing force, while in view of the accuracy problem of test measurement, can be by vertical load sensor
It is built-in load sensor with horizontal loading replacing sensor；
2nd, the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling described in the utility model sets diffusion gas
Flushing device is steeped, ventilating water pipe inside gas capacity is to error caused by test measurement during significantly reducing long term test；
3rd, the upper shear box of the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling described in the utility model
Flexure element and transmitting flexure element are received with being separately installed with down cut box, shearing wave can be effectively carried out in simple shear test
Transmitting and reception；
4th, the down cut box of the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling described in the utility model
Interior setting sets different water passages by the way of pottery clay plates and permeable stone are combined, and can efficiently control experiment
During draining and suction condition；
5th, the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling described in the utility model in shear box and
Using smart to experiment to reduce frictional force during simple shear or staight scissors by the way of slideway and steel ball are combined between the folded ring of simple shear
The influence of degree, and the side wall setting orientation ball of ring is folded in shear box and simple shear, avoid the side of sample during simple shear and staight scissors
To skew, the accuracy of test measurement is improved；
6th, the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling described in the utility model can expand to
Tetrad staight scissors simple shear structure either multi-joint structure, and can be used as consolidation test equipment, can be changed without the bar of test chamber
Under part, only by the direct shear test and consolidation test for replacing with shear box and down cut box and carrying out different size sample, effectively
Ground improves the efficiency of experimental study and the utilization rate of testing equipment, reduces experimentation cost.
Brief description of the drawings
Fig. 1 is that the structure of the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling described in the utility model is shown
It is intended to.
Fig. 2 is the structural representation of staight scissors simple shear test system described in the utility model.
Fig. 3 is the section of structure of staight scissors simple shear test system simple shear part described in the utility model.
Fig. 4 is the section of structure of staight scissors simple shear test system staight scissors part described in the utility model.
Fig. 5 is the front view of balancing gate pit described in the utility model.
Fig. 6 is the top view of balancing gate pit described in the utility model.
Fig. 7 is the A-A profiles of the balancing gate pit described in Fig. 5.
Fig. 8 is the B-B profiles of the balancing gate pit described in Fig. 6.
Fig. 9 is the III-III profiles described in Fig. 8.
Figure 10 is the structural representation of sample down cut box described in the utility model.
Figure 11 is simple shear steel loop structural representation described in the utility model.
Figure 12 is the structural representation of diffusion bubble flushing device described in the utility model.
Figure 13 is the top view of tetrad staight scissors simple shear test system described in the utility model.
Embodiment
Embodiment 1
As shown in figures 1-13, a kind of multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, it includes control
Cabinet 1, staight scissors simple shear apparatus 2, diffusion bubble flushing device 3, temperature control device 4 and computer 5, described switch board 1 and staight scissors simple shear
Instrument 2, temperature control device 4 are connected with computer 5, and staight scissors simple shear apparatus 2 are connected with diffusion bubble flushing device 3 and temperature control device 4.
The above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, described staight scissors simple shear apparatus 2
Including axial loading system 2-1, horizontal to cutting system 2-2, balancing gate pit 2-3 and support 2-4；
Described level is installed on support 2-4 to cutting system 2-2 and balancing gate pit 2-3, and described is horizontal to shearing
System 2-2 is connected by the first transmission lever 2-6, the second transmission lever 2-17 and the 3rd transmission lever 2-22 with balancing gate pit 2-3；
Described axial loading system 2-1 is fixed on balancing gate pit 2-3 top, by axial loading system 2-1 to pressure
Sample 2-25 in the 2-3 of room applies axial compressive force, sample 2-25 is in stress state, and described is horizontal to cutting system 2-2
Horizontal direction shearing property is carried out to the sample 2-25 inside balancing gate pit 2-3.
The above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, described axial loading system
2-1 includes center-pole 2-9, vertical load sensor 2-10, cylinder piston 2-11, cylinder 2-12, high-precision digital-display table 2-13, number
Aobvious table fixture 2-14 and cylinder frame 2-15；
Described cylinder 2-12 is fixed on cylinder frame 2-15 top, and cylinder piston 2-11 is provided with inside cylinder 2-12,
Described cylinder piston 2-11, vertical load sensor 2-10 and center-pole 2-9 is sequentially connected and connect；
Described high-precision digital-display table 2-13 is fixed on digital display meter fixture 2-14, described digital display meter fixture 2-14 installations
The 2-3 top in balancing gate pit.
The above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, described is horizontal to shearing system
The 2-2 that unites includes turbine worm reducer 2-5, the first transmission lever 2-6, the second transmission lever 2-17, first level load sensor 2-
18th, base 2-19, the first adjusting screw rod 2-20, the 3rd transmission lever 2-22, the regulations of the second horizontal loading sensor 2-23 and second
Screw rod 2-24；
Described turbine worm reducer 2-5 is connected by the first transmission lever 2-6 with down cut box 2-30 side wall；
Described base 2-19 is arranged on support 2-4, and base 2-19 upper and lower part is respectively arranged with the first regulation
Screw rod 2-20 and the second adjusting screw rod 2-24, described first level load sensor 2-18 are arranged on the first adjusting screw rod 2-20
Between the second transmission lever 2-17, the second described horizontal loading sensor 2-23 is arranged on the second adjusting screw rod 2-24 and the 3rd
Between transmission lever 2-22；
Described the 3rd transmission lever 2-22, the second horizontal loading sensor 2-23 and the second adjusting screw rod 2-24 and first are passed
Bar 2-6 is passed to be on same axis；
The second described transmission lever 2-17 and the 3rd transmission lever 2-22 pass through L-type connector 2-47 and upper shear box 2- respectively
33 are connected.
The above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, described balancing gate pit's 2-3 bags
Pressure chamber upper cover 2-26, sealing side neck 2-27 and pressure chamber base 2-28, described sealing side neck 2-27 is included to be located in balancing gate pit
Cover between 2-26 and pressure chamber base 2-28；
Track 2-29 is provided with described pressure chamber base 2-28；
Described pressure chamber upper cover 2-26 centers are provided with the first seal receptacle 2-8, described sealing side neck 2-27
It is separately installed with the second seal receptacle 2-7, the 3rd seal receptacle 2-16 and the 4th seal receptacle 2-21；
Described center-pole 2-9, the first transmission lever 2-6, the second transmission lever 2-17 and the 3rd transmission lever 2-22 middle part are equal
Provided with raised 2-51, described center-pole 2-9, the first transmission lever 2-6, the second transmission lever 2-17 and the 3rd transmission lever 2-22 difference
Through the first seal receptacle 2-8, the second seal receptacle 2-7, the 3rd seal receptacle 2-16 and the 4th seal receptacle 2-21；Described center-pole 2-
9th, the raised 2-51 in the middle part of the first transmission lever 2-6, the second transmission lever 2-17 and the 3rd transmission lever 2-22 respectively with the first seal receptacle
Sealing cavity 2-52 is formed between 2-8, the second seal receptacle 2-7, the 3rd seal receptacle 2-16 and the 4th seal receptacle 2-21, described is close
Envelope cavity 2-52 is connected by tracheae 2-53 with balancing gate pit 2-3 inside；
Bossing below center-pole 2-9 is in contact with pressure cap 2-35 sunk part.
The above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, the second described seal receptacle 2-
7th, the 3rd seal receptacle 2-16 and the 4th seal receptacle 2-21 operation principle is：Described sealing cavity 2-52 internal pressures P1With pressure
Power room 2-3 internal pressures P2It is equal, due to sealing cavity 2-52 internal pressures P1Effect, can offset pressure room 2-3 internal pressures
P2To center-pole 2-9, the first transmission lever 2-6, the second transmission lever 2-17 and the 3rd transmission lever 2-22 active force, realization was tested
The vertical direction vertically control of net direct stress and the measurement of the net shear stress of horizontal direction in journey.
The above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, described shear box include upper
Shear box 2-33, down cut box 2-30 and simple shear fold ring group 2-32, described down cut box 2-30 and are placed on the upper of track 2-29
Side, simple shear are folded ring group 2-32 and are located between down cut box 2-30 and upper shear box 2-33；
In horizontal shear direction, down cut box 2-30, upper shear box 2-33 and simple shear are folded ring group 2-32 three and contacted with each other
Position be provided with slideway 2-54, and some steel ball 2-31 are placed in slideway 2-54；
In horizontal shear direction, down cut box 2-30 top is fixed with orientation ball 2-61, orientation ball 2-61 sphere point
The side for not folding ring group 2-32 and upper shear box 2-33 with simple shear is in contact；
Transmitting flexure element 2-55, rectangle pottery clay plates are sequentially installed with inside described down cut box 2-30 from center to border
2-38's and rectangle permeable stone 2-37 with holes, described rectangle permeable stone 2-37 with holes is fixedly arranged above tabletting 2-62, described
Rectangle pottery clay plates 2-38's and rectangle permeable stone 2-37 with holes has been respectively arranged below spiral shape water passage 2-39 and Rong Shuikong
Chamber 2-40；Described spiral shape water passage 2-39 and first passage 2-42 and second channel 2-43 are connected, described appearance water
Cavity 2-40 is connected with third channel 2-41, described first passage 2-42, second channel 2-43 and third channel 2-41's
End is respectively arranged with the first high-pressure ball valve 2-45, the second high-pressure ball valve 2-46 and the 3rd high-pressure ball valve 2-44.
Described sample 2-25 is located at down cut box 2-30, upper shear box 2-33 and simple shear folds ring group 2-32 inside, examination
Sample 2-25 top is sequentially placed permeable stone 2-34 and pressure cap 2-35, and one layer of latex film 2- is wrapped up on described sample 2-25 surfaces
50, described latex film 2-50 upper ends, lower end are separately fixed on shear box 2-33, down cut box 2-30；
The above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, along down cut box 2-30's
The direction of motion, described permeable stone 2-34 bottoms, which are provided with, receives flexure element 2-56.
The above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, described temperature control device 4 wrap
Include water bath, the first temperature sensor 4-1, second temperature sensor 4-2, water-bath circulation copper pipe 4-3 and heat preserving and insulating material 4-
4。
The above-described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, described staight scissors simple shear apparatus 2
Tetrad staight scissors simple shear apparatus 6 or multi-joint staight scissors simple shear apparatus are can be replaced, described tetrad staight scissors simple shear apparatus 6 include the first staight scissors list
Cut instrument 6-1, the second staight scissors simple shear apparatus 6-2, the 3rd staight scissors simple shear apparatus 6-3 and the 4th staight scissors simple shear apparatus 6-4, the first described staight scissors
Simple shear apparatus 6-1, the second staight scissors simple shear apparatus 6-2, the 3rd staight scissors simple shear apparatus 6-3 and the 4th staight scissors simple shear apparatus 6-4 are logical between each other
Cross the first worm screw 6-5, shaft coupling 6-6 and the second worm screw 6-7 connections.
Described diffusion bubble flushing device 3 can use the model TKA- of Nanjing Tyke Science and Technology Ltd. of Austria production
DAF-1F diffusion bubble flushing device, described diffusion bubble flushing device 3 includes base 3-5, on base 3-5
Offered in bubble trap 3-2 and normally closed electronic valve 3-4, bubble trap 3-2 funnel cavity 3-1 and with funnel cavity 3-1
The connected funnel tubule 3-3 in bottom；Discharge outlet 3-6 and sensing are entered in described bubble trap 3-2 bottoms provided with bubble trap
Device interface 3-7, sensor interface 3-7 are connected with accurate hydraulic pressure sensor 3-9；Described bubble trap enter discharge outlet 3-6 with
Normally closed electronic valve 3-4 one end is connected, and the normally closed electronic valve 3-4 other ends are connected with pressure chamber base 2-28 discharge outlet of entering；It is described
Sensor interface 3-7 with exhaust bubble valve 3-8 be connected.
Embodiment 2
The described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, which can be taken into account, carries out saturated soil experiment
And unsaturated soil testing, primary operational are：
When carrying out saturated soil staight scissors simple shear test, closing the first high-pressure ball valve 2-45 and the second high-pressure ball valve 2-46 is
Can；
When carrying out unsaturated soil staight scissors simple shear test, closing the second high-pressure ball valve 2-46 and the 3rd high-pressure ball valve 2-44 is
Can.
Embodiment 3
During experiment, the described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling can be effectively
Temperature is controlled, primary operational is：
Temperature control, described insulation are carried out to sample 2-25 using the circulating liquid in water-bath circulation copper pipe 4-3
Material 4-4 passes as balancing gate pit 2-3 and extraneous heat-insulating heat-preserving material, the first described temperature sensor 4-1 and second temperature
Sensor 4-2 is monitored and fed back to the temperature in balancing gate pit 2-3 and sample 2-25 respectively, by feed back obtained temperature value with
Temperature value is contrasted needed for experiment, the temperature change during Control experiment.
Embodiment 4
During simple shear test, the described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling can have
Effect ground carries out the transmitting and reception of shearing wave, and main operational steps are：
During simple shear test, computer 5 or switch board 1 will pass through the shifting of the shear rate to experiment and down cut box
Dynamic displacement voluntarily judges to launch flexure element 2-55 position, when transmitting flexure element 2-55 and first receive flexure element 2-56 same
When on bar axis, instrument would automatically turn on the reception that the first reception flexure element 2-56 carries out shearing wave, as transmitting flexure element 2-55
Flexure element 2-57 is received when on same axis with second, and instrument would automatically turn on the second reception flexure element 2-57 and be sheared
The reception of ripple, the like, the number for receiving flexure element can be set according to the needs of experiment.
Embodiment 5
The described multi-functional staight scissors simple shear test system of temperature-suction-stress coupling can carry out tests below：
A, conventional saturation soil body simple shear, direct shear test；
B, conventional unsaturation soil body simple shear, direct shear test；
B, under Temperature-Stress (suction s=0) coupling condition, the simple shear of saturated soil, direct shear test；
C, under the conditions of temperature-suction-stress coupling, the simple shear of unsaturated soil, direct shear test；
D, in the presence of shearing wave, saturated soil Temperature-Stress (suction s=0) coupling simple shear, direct shear test；
E, in the presence of shearing wave, unsaturated soil temperature-suction-stress coupling simple shear, direct shear test；
F, under the conditions of temperature-suction-stress coupling, unsaturation consolidation moisture absorption dehumidification experiment, soil―structure interaction is measured；
G, under Temperature-Stress (suction s=0) coupling condition, saturated soil consolidation test：Hierarchical loading, strain rate are constant
The constant CRL consolidation tests of CRS consolidation tests, loading speed.
Embodiment of the present utility model is these are only, its description is more specific and detailed, but can not therefore understand
For the limitation to the utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, do not taking off
On the premise of conceiving from the utility model, various modifications and improvements can be made, these belong to protection of the present utility model
Scope.
Claims (8)
1. a kind of multi-functional staight scissors simple shear test system of temperature-suction-stress coupling, it is characterised in that it includes switch board
(1), staight scissors simple shear apparatus (2), diffusion bubble flushing device (3), temperature control device (4) and computer (5), described switch board (1)
It is connected with staight scissors simple shear apparatus (2), temperature control device (4) and computer (5), staight scissors simple shear apparatus (2) and diffusion bubble flushing device (3)
It is connected with temperature control device (4)；
Described staight scissors simple shear apparatus (2) include axial loading system (2-1), are horizontal to cutting system (2-2), balancing gate pit (2-3)
With support (2-4)；
Described level is installed on support (2-4) to cutting system (2-2) and balancing gate pit (2-3), and described level is to cutting
Cutting system (2-2) passes through the first transmission lever (2-6), the second transmission lever (2-17) and the 3rd transmission lever (2-22) and balancing gate pit (2-
3) it is connected；
Described axial loading system (2-1) is fixed on balancing gate pit (2-3) top, by axial loading system (2-1) to pressure
Sample (2-25) in power room (2-3) applies axial compressive force, sample (2-25) is in stress state, and described is horizontal to shearing
System (2-2) carries out horizontal direction shearing property to balancing gate pit (2-3) internal sample (2-25).
2. the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling according to claim 1, it is characterised in that
Described axial loading system (2-1) includes center-pole (2-9), vertical load sensor (2-10), cylinder piston (2-11), gas
Cylinder (2-12), high-precision digital-display table (2-13), digital display meter fixture (2-14) and cylinder frame (2-15)；
Described cylinder (2-12) is fixed on cylinder frame (2-15) top, and cylinder piston (2- is provided with inside cylinder (2-12)
11), described cylinder piston (2-11), vertical load sensor (2-10) and center-pole (2-9) are sequentially connected and connect；
Described high-precision digital-display table (2-13) is fixed on digital display meter fixture (2-14), described digital display meter fixture (2-14) peace
Mounted in balancing gate pit (2-3) top.
3. the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling according to claim 1, it is characterised in that
Described level includes turbine worm reducer (2-5), the first transmission lever (2-6), the second transmission lever to cutting system (2-2)
(2-17), first level load sensor (2-18), base (2-19), the first adjusting screw rod (2-20), the 3rd transmission lever (2-
22), the second horizontal loading sensor (2-23) and the second adjusting screw rod (2-24)；
Described turbine worm reducer (2-5) is connected by the first transmission lever (2-6) with the side wall of down cut box (2-30)；
Described base (2-19) is arranged on support (2-4), and the upper and lower part of base (2-19) is respectively arranged with the first tune
Screw rod (2-20) and the second adjusting screw rod (2-24) are saved, described first level load sensor (2-18) is arranged on the first regulation
Between screw rod (2-20) and the second transmission lever (2-17), the second described horizontal loading sensor (2-23) is arranged on the second regulation
Between screw rod (2-24) and the 3rd transmission lever (2-22)；
Described the 3rd transmission lever (2-22), the second horizontal loading sensor (2-23) and the second adjusting screw rod (2-24) and first
Transmission lever (2-6) is on same axis；
Described the second transmission lever (2-17) and the 3rd transmission lever (2-22) passes through L-type connector (2-47) and upper shear box respectively
(2-33) is connected.
4. the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling according to claim 1, it is characterised in that
Described balancing gate pit (2-3) includes pressure chamber upper cover (2-26), sealing side neck (2-27) and pressure chamber base (2-28), described
Sealing side neck (2-27) is located between pressure chamber upper cover (2-26) and pressure chamber base (2-28)；
Track (2-29) is provided with described pressure chamber base (2-28)；
Described pressure chamber upper cover (2-26) center is provided with the first seal receptacle (2-8), described sealing side neck (2-27)
On be separately installed with the second seal receptacle (2-7), the 3rd seal receptacle (2-16) and the 4th seal receptacle (2-21)；
In described center-pole (2-9), the first transmission lever (2-6), the second transmission lever (2-17) and the 3rd transmission lever (2-22)
Portion is equipped with raised (2-51), and described center-pole (2-9), the first transmission lever (2-6), the second transmission lever (2-17) and the 3rd pass
Pass bar (2-22) and be each passed through the first seal receptacle (2-8), the second seal receptacle (2-7), the 3rd seal receptacle (2-16) and the 4th sealing
Seat (2-21)；Described center-pole (2-9), the first transmission lever (2-6), the second transmission lever (2-17) and the 3rd transmission lever (2-22)
The projection (2-51) at middle part respectively with the first seal receptacle (2-8), the second seal receptacle (2-7), the 3rd seal receptacle (2-16) and the 4th
Sealing cavity (2-52) is formed between seal receptacle (2-21), described sealing cavity (2-52) passes through tracheae (2-53) and balancing gate pit
The inside of (2-3) is connected；
Bossing below center-pole (2-9) is in contact with the sunk part of pressure cap (2-35).
5. the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling according to claim 1, it is characterised in that
Shear box includes upper shear box (2-33), down cut box (2-30) and simple shear and folds ring group (2-32), described down cut box (2-
30) track (2-29) top is placed on, simple shear folds ring group (2-32) and is located at down cut box (2-30) and upper shear box (2-33)
Between；
In horizontal shear direction, down cut box (2-30), upper shear box (2-33) and simple shear fold ring group (2-32) three's phase mutual connection
Tactile position is provided with slideway (2-54), and some steel balls (2-31) are placed in slideway (2-54)；
In horizontal shear direction, the top of down cut box (2-30) is fixed with orientation ball (2-61), the sphere of orientation ball (2-61)
The side for folding ring group (2-32) and upper shear box (2-33) with simple shear respectively is in contact；
Transmitting flexure element (2-55), rectangle pottery clay plates are sequentially installed with inside described down cut box (2-30) from center to border
(2-38) and rectangle permeable stone with holes (2-37), described rectangle permeable stone with holes (2-37) are fixedly arranged above tabletting (2-
62), the spiral shape that has been respectively arranged below of described rectangle pottery clay plates (2-38) and rectangle permeable stone with holes (2-37) is crossed water and led to
Road (2-39) and appearance water cavity (2-40)；Described spiral shape water passage (2-39) and first passage (2-42) and second channel
(2-43) is connected, and described appearance water cavity (2-40) is connected with third channel (2-41), described first passage (2-42),
The end of second channel (2-43) and third channel (2-41) is respectively arranged with the first high-pressure ball valve (2-45), the second high-pressure ball valve
(2-46) and the 3rd high-pressure ball valve (2-44).
6. the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling according to claim 5, it is characterised in that
Along down cut box (2-30) direction of motion, permeable stone (2-34) bottom, which is provided with, receives flexure element (2-56).
7. the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling according to claim 1, it is characterised in that
Described temperature control device (4) includes water bath, the first temperature sensor (4-1), second temperature sensor (4-2), water-bath circulation
Copper pipe (4-3) and heat preserving and insulating material (4-4).
8. the multi-functional staight scissors simple shear test system of temperature-suction-stress coupling according to any one of claim 1 to 7, its
It is characterised by, described staight scissors simple shear apparatus (2) can be replaced tetrad staight scissors simple shear apparatus (6), described tetrad staight scissors simple shear apparatus (6)
Including the first staight scissors simple shear apparatus (6-1), the second staight scissors simple shear apparatus (6-2), the 3rd staight scissors simple shear apparatus (6-3) and the 4th staight scissors simple shear
Instrument (6-4), the first described staight scissors simple shear apparatus (6-1), the second staight scissors simple shear apparatus (6-2), the 3rd staight scissors simple shear apparatus (6-3) and
Four staight scissors simple shear apparatus (6-4) are connected by the first worm screw (6-5), shaft coupling (6-6) and the second worm screw (6-7) between each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720392470.6U CN207007632U (en) | 2017-04-14 | 2017-04-14 | The multi-functional staight scissors simple shear test system of temperature suction stress coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720392470.6U CN207007632U (en) | 2017-04-14 | 2017-04-14 | The multi-functional staight scissors simple shear test system of temperature suction stress coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207007632U true CN207007632U (en) | 2018-02-13 |
Family
ID=61442571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720392470.6U Active CN207007632U (en) | 2017-04-14 | 2017-04-14 | The multi-functional staight scissors simple shear test system of temperature suction stress coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207007632U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063893A (en) * | 2017-04-14 | 2017-08-18 | 南京泰克奥科技有限公司 | The multi-functional staight scissors simple shear test system of temperature suction stress coupling and its operating method |
| CN108918819A (en) * | 2018-05-22 | 2018-11-30 | 青岛理工大学 | A kind of multi-parameter micro-test device and its application method for simulating drying and watering cycle |
| CN108956331A (en) * | 2018-05-26 | 2018-12-07 | 云南农业大学 | Unsaturated soil capillary sucks direct shear apparatus and application method |
| CN111122280A (en) * | 2019-12-16 | 2020-05-08 | 重庆大学 | Large direct shear test sample preparation device for reinforcing coarse-grained soil by microorganisms and using method |
-
2017
- 2017-04-14 CN CN201720392470.6U patent/CN207007632U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063893A (en) * | 2017-04-14 | 2017-08-18 | 南京泰克奥科技有限公司 | The multi-functional staight scissors simple shear test system of temperature suction stress coupling and its operating method |
| CN107063893B (en) * | 2017-04-14 | 2023-08-11 | 南京泰克奥科技有限公司 | Temperature-suction-stress coupling multifunctional direct shear single shear test system and operation method thereof |
| CN108918819A (en) * | 2018-05-22 | 2018-11-30 | 青岛理工大学 | A kind of multi-parameter micro-test device and its application method for simulating drying and watering cycle |
| CN108918819B (en) * | 2018-05-22 | 2020-09-22 | 青岛理工大学 | Multi-parameter micro test device for simulating dry-wet cycle and use method thereof |
| CN108956331A (en) * | 2018-05-26 | 2018-12-07 | 云南农业大学 | Unsaturated soil capillary sucks direct shear apparatus and application method |
| CN111122280A (en) * | 2019-12-16 | 2020-05-08 | 重庆大学 | Large direct shear test sample preparation device for reinforcing coarse-grained soil by microorganisms and using method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107063893A (en) | The multi-functional staight scissors simple shear test system of temperature suction stress coupling and its operating method | |
| CN207007632U (en) | The multi-functional staight scissors simple shear test system of temperature suction stress coupling | |
| CN205826656U (en) | A kind of frozen soil freeze thawing laboratory testing rig | |
| CN106680129B (en) | Rock sample recycles the simulation of dry and wet freezing-thawing and damage deterioration test device | |
| CN104267172B (en) | A kind of multifunctional all formula soil body freezing-thawing test system | |
| CN207194039U (en) | Piled-box foundaton horizontal cyclic load testing machine | |
| WO2018161866A1 (en) | Device and method for testing mechanical behavior characteristic of pile-soil interface for energy pile | |
| CN107449678A (en) | Large-scale triaxial shear test devices and methods therefor in situ | |
| CN105938070A (en) | Multifunctional true triaxial rock drilling test system and test method for characterizing the characteristics of rocks | |
| CN203643442U (en) | Multifunctional rainfall landslide indoor testing device | |
| CN104749205A (en) | Water thermal force comprehensive testing system and method of soil body freezing process | |
| CN103969282A (en) | Test device for making research on soil freezing and thawing temperature field, water migration and deformation law | |
| CN108732057A (en) | Ring shear test equipment and its test method under a kind of soil body Frozen-thawed cycled and weathering environment | |
| CN104502562A (en) | Vertical well drainage consolidation soft foundation processing model test device and test method | |
| CN105223080B (en) | Evaluation method for jointed rock performance and bolting and grouting effects under compression-shear condition | |
| Yunchuan et al. | Simulation analysis of mass concrete temperature field | |
| CN108693019A (en) | Liquid-heat-stress coupling acts on roadbed bridge response to forced vibration device and method | |
| CN106353359A (en) | Device for testing thermophysical parameters of soil mass sample | |
| CN106442035B (en) | Device and method for manufacturing direct shear test sample of concrete-frozen soil contact surface | |
| CN104897553A (en) | Layered saturated soil seepage consolidation simulating device | |
| CN102175583B (en) | Temperature-controllable three-axis soil permeability test device | |
| CN204536237U (en) | A kind of Freezing Soils hydro-thermal power comprehensive test system | |
| CN103485371A (en) | Device and method for foundation failure mode simulation and bearing capacity testing | |
| CN207650031U (en) | Concrete sample Hydraulic fracturing test sealing device under axial force | |
| CN207300760U (en) | A kind of large-scale triaxial shear test device in situ |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |