CN107064466A - A kind of indoor sound carries the swollen coefficient determination experimental provision of salt marsh earth salt and method - Google Patents
A kind of indoor sound carries the swollen coefficient determination experimental provision of salt marsh earth salt and method Download PDFInfo
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Abstract
The present invention provides a kind of indoor sound and carries the swollen coefficient determination experimental provision of salt marsh earth salt, including places basic platform in the horizontal plane, is fixedly installed on the loading frame on the basic platform；It is provided with inside the loading frame in environmental chamber, the environmental chamber and test specimen vessel is set, and makes to form certain headspace between the top of the environmental chamber and the top of the test specimen vessel；Also include being used for the lever-loading portion that in the vertical direction loads the salinized soil in the test specimen vessel；Elastic buffer portion is provided between at the top of the loading pressing plate and the test specimen vessel；Displacement detector is additionally provided with the top of the test specimen vessel.
Description
Technical field
The invention belongs to the laboratory testing rig in civil engineering field, the swollen system of salt marsh earth salt is carried more particularly to a kind of indoor sound
Number determination experiment device and method.
Background technology
Salinized soil geology is widely distributed in China, especially in the Northwest, is used as the bottom of building, highway and railway etc.
Brace foundation, its deformation failure can all cause significant damage to relative all kinds of engineerings, and it is salinized soil that salt, which bursts bad,
One of topmost disease, with construction is largely carried out in all kinds of engineerings in saline soil area, is studied the basic test of salinized soil
Also it is increasingly noticeable, the wherein swollen mechanism of salt, influence factor, salt is swollen coefficient etc. and the core that must be considered during as design, construction
Heart problem.
It is to occur mainly in sulfate salinized soil that salt is swollen, and substantial amounts of water is absorbed during due to sulfate crystal and causes volume swollen
It is swollen, increase the space between grogs, grogs is loose, the loft layer that forming salt knot is peeled off.Applying certain load can substantially press down
Salt bulk when salt manufacturing is swollen, and salt marsh soil's water content etc. can all influence the salt of salinized soil swollen, will necessarily be right before engineering construction
The basic physico-mechanical properties of salinized soil carries out experimental study.
Research at present to the swollen characteristic of salt is still not enough, is mainly manifested in the study mechanism swollen to salt not enough, whole without one
The complete swollen testing standard specification instrument of salt of set, in the research of the swollen experiment of all kinds of salt, researcher would generally make simple and crude examination
Instrument is tested to carry out the test of the swollen coefficient of salt or loaded or be not loaded with experiment, test period phase with omnipotent earthwork test Instrument
Work as length, and process of the test is cumbersome, can simulate operating mode less.Although salt is swollen, coefficient test has its directly perceived, reliable method, conduct
A kind of measuring technology, it is present, and experiment input is big, time-consuming, cost high, and restraining factors are more, can not even carry out original shape experiment
Many defects.And the Model Pile based on similarity theory is tested and provides a kind of effective ways for research, exploration and solution problem.
Brining ground foundation model is made to salinized soil, by scientific instrument and experimental facilities, artificially Control experiment condition,
The salt of research salinized soil is swollen and the test swollen coefficient of its salt.At present, the swollen laboratory experiment of salt marsh earth salt is swollen as research salt marsh earth salt
The Main Means of genesis mechanism, influence factor and the swollen failure law of salt, and be used widely.
Currently, the swollen laboratory testing rig of salt marsh earth salt is numerous, complicated and changeable, and its is expensive, and maintenance cost is high, into
Kept in check for scientific research, experimental teaching.
During the present invention is realized, inventor has found that process of the test is cumbersome in the prior art, it is single to simulate operating mode
With spend the defect such as time length.
The content of the invention
To solve problem of the prior art, the present invention provides a kind of indoor sound and carries the swollen coefficient determination experimental provision of salt marsh earth salt,
Including placing basic platform in the horizontal plane, the loading frame on the basic platform is fixedly installed on；The loading frame
Inside is provided with environmental chamber, sets test specimen vessel in the environmental chamber, and make the top of the environmental chamber with
Certain headspace is formed between the top of the test specimen vessel；Also include holding the test specimen in the vertical direction
The lever-loading portion that salinized soil in device room is loaded, the lever-loading portion includes being articulated with the outside of the loading frame
The first lever set in the horizontal direction of side, counterweight arm of force adjustment hole is provided with the first lever two ends, described
Lever-loading portion also includes the loading pressing plate being located in the headspace, leads between the loading pressing plate and first lever
Cross vertical drive link connection；Elastic buffer portion is provided between at the top of the loading pressing plate and the test specimen vessel；The test specimen
Displacement detector is additionally provided with the top of vessel.
Preferably, elastic buffer portion include being fixed on spring on nut and for by spring location and installation in loading pressing plate
The spring of lower surface installs screw.
Preferably, dynamic load portion is provided between the top of first lever and the loading frame, the dynamic load portion includes
Cam mechanism and with the variable speed electric motors, particularly being connected with cam mechanism.
Preferably, the environmental simulation box top is provided with waterfog head, and moisture detector.
Preferably, the range of temperature in the environmental chamber is -45 DEG C ~ 60 DEG C.
Preferably, temperature detector is provided with the test specimen vessel.
Preferably, the test specimen vessel includes four separate casings, and between each described tank surface etc.
Aperture is opened up away from ground, so that temperature detector is embedded.
Another aspect of the present invention carries the swollen coefficient determination experimental method of salt marsh earth salt there is provided a kind of indoor sound.Before use
The experimental provision stated carries out experimental implementation, specifically includes following steps：
The salt marsh soil model used in laboratory experiment is made, and temperature detector is embedded in by the aperture on environmental chamber surface
In the soil body；Each soil model is numbered, arranges, is sequentially placed into environmental chamber by certain test sequence, installed
Vertical drive link, and ensure that vertical drive link does not rub with aperture on environmental chamber；Adjust the loading frame on basic platform
Frame, makes whole device be in level without heeling condition；The nut in the elastic buffer portion below regulation loading pressing plate is in spring
Natural balanced state, and ensure to load pressing plate level；Check errorless rear progress loading experiment operation.
Preferably, carry out loading experiment operation the step of specifically include, rotating speed is adjusted after variable speed electric motors, particularly by starting, make with
The application of dynamic load under the cam mechanism simulation dynamic load load condition of motor connection, simulation different frequency.
Preferably, the step of carrying out loading experiment operation specifically includes, and adjusts the counterweight of first lever one end, makes the
One lever balance, adds weights, to simulate different dead loads in the relative other end of the counterweight with first lever one end
Change that situation salt is swollen.
A kind of indoor sound that the present invention is provided carries the swollen coefficient determination experimental provision of salt marsh earth salt, can overcome prior art
Middle experimentation cost is high, process is cumbersome, it is single to simulate operating mode and spends the defects such as time length, so that cost of implementation is low, experiment is simple,
The advantages of multiclass operating mode can be simulated simultaneously and taken a short time.
Brief description of the drawings
Fig. 1 for the embodiment of the present invention indoor sound carry the swollen coefficient determination experimental provision of salt marsh earth salt, structural representation
Figure；
Fig. 2 for the embodiment of the present invention indoor sound carry the swollen coefficient determination experimental provision of salt marsh earth salt, basic platform solid
Structural representation；
Fig. 3 for the embodiment of the present invention indoor sound carry the swollen coefficient determination experimental provision of salt marsh earth salt, loading frame solid
Structural representation；
Fig. 4 for the embodiment of the present invention indoor sound carry the swollen coefficient determination experimental provision of salt marsh earth salt, the first lever solid
Structural representation；
Fig. 5 for the embodiment of the present invention indoor sound carry the swollen coefficient determination experimental provision of salt marsh earth salt, cam mechanism structure show
It is intended to；
Fig. 6 for the embodiment of the present invention indoor sound carry the swollen coefficient determination experimental provision of salt marsh earth salt, cam mechanism and motor
Attachment structure schematic diagram；
Fig. 7 for the embodiment of the present invention indoor sound carry the swollen coefficient determination experimental provision of salt marsh earth salt, motor erection support knot
Structure schematic diagram；
Fig. 8 for the embodiment of the present invention indoor sound carry the swollen coefficient determination experimental provision of salt marsh earth salt, spring nut solid knot
Structure schematic diagram；
Fig. 9 for the embodiment of the present invention indoor sound carry the swollen coefficient determination experimental provision of salt marsh earth salt, loading pressure plate structure show
It is intended to；
Figure 10 is the dimensional structure diagram of the environmental chamber of the embodiment of the present invention；
Figure 11 is the swollen coefficient testing experiment schematic flow sheet of indoor salt marsh earth salt of the embodiment of the present invention.
Description of reference numerals：
100- lever-loadings portion, 200- basic platforms, 400- elastic buffers portion, 500- loading frames, 600- cam mechanisms, 700-
Displacement detector, 800- test specimen vessels, 900- temperature detectors；
The levers of 11- first, 13- counterweights, 14- loading counterweights, 15- the first lever connecting hinges, 16- loading pressing plates；161- is passed
Lever；21- bearings, 22- loading frame connecting hinges；23- base crossbeams, 24- leveling serews, 25- base steel plates；31- environment moulds
Intend case, 32- waterfog heads, 33- osculums；40- springs install screw, 42- nuts, 43- springs；51- loading frame columns,
52- the first loading frame crossbeams, 53- the second loading frame crossbeams, 510- supports, 512- seat boards, 601- variable speed electric motors, particularlies, 610- is small
Hole, 612- motor installing holes, 801- soil casees is fixedly mounted in wheel, 611- motor support bases.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing.
As Figure 1-10 shows, the present invention provides a kind of indoor sound and carries the swollen coefficient determination experimental provision of salt marsh earth salt, including
Basic platform 200 in the horizontal plane is placed, the loading frame 500 on basic platform 200 is fixedly installed on；Loading frame 500
Inside is provided with environmental chamber 31.Test specimen vessel 800 is set in environmental chamber 31（The tested salinized soil for holding）,
And make to form certain headspace between the top of environmental chamber 31 and the top of test specimen vessel 800.The device is also wrapped
Include the lever-loading portion 100 loaded in the vertical direction to the salinized soil in test specimen vessel 800, lever-loading portion
100 include being articulated with the first levers 11 set in the horizontal direction above the outside of loading frame 500, in 11 liang of the first lever
End is provided with counterweight arm of force adjustment hole（For hanging counterweight either counterweight）.Lever-loading portion 100 also includes being located at reserving
Connected between loading pressing plate 16 in space, the loading lever 100 of pressing plate 16 and first by vertical drive link 161.Load pressing plate
Elastic buffer portion 400 is provided between 16 and the top of test specimen vessel 800.The top of test specimen vessel 800 is additionally provided with displacement inspection
Survey device 700.
Wherein, lever-loading portion 100 include the first lever 11, counterweight 13, counterweight 14 and loading drive link 161 and
Loading pressing plate 16 below.One end of first lever 11 is connected by finer wire with scale pan, and the other end is again by a steel
Silk is connected with balance balancing disk, thereon equipped with counterweight 13, and counterweight 13 is primarily to the first lever 11 of balance, makes it
When being not loaded with, the first lever 11 is balanced.First lever 11 is provided with front and rear two groups of connectors, rear attachment and loading frame
500 are connected at the first lever connecting hinge 15, as the fulcrum of the first lever 11, anterior to be connected with vertical drive link 161（Transmission
The lower end of bar 161 is connected with loading pressing plate 16, and as the force application board of load, its upper end passes through the top-portion apertures of environmental chamber 31
Hole；The top of drive link 161 is provided with circular hole, can be connected by straight pin with the first lever 11.Self-balancing lever is loaded, weight
The code load arm of force is 15 times of the load bar load arm of force, thus the load that loading drive link 161 is transmitted is counterweight gravity load
10 times.Also, by changing lever length or position of the fulcrum, it can also obtain the load that other multiples load drive link 161 vertically；
Right hand balance counterweight 13 is used for balanced lever, therefore can convenient and swift balance fulcrum left side weight by this mode）.It should be noted
, when the front connection pieces of the vertical loading lever 11 of drive link 161 and first are hinged, it is ensured that loading drive link 161 is vertical, and
Do not rubbed with the aperture at the top of environmental chamber 31（Aperture of the drive link 161 through the top of environmental chamber 31）.
Wherein, basic platform 200 includes bearing 21, base crossbeam 23, and its function is to loading frame 500 and environment mould
Intend case 31 and play a part of support, leveling serew 24 can carry out leveling to the steel plate 25 being placed on base crossbeam 23 to be prevented from tilting
Loading, the size of basic platform 200 is depended in the size of environmental chamber 31, is highly advisable with 10 ~ 20cm, material is steel
Material.Wherein, column, crossbeam and horizontal steel plate should possess stronger rigidity so that work can be neglected during salt marsh soil model loading experiment
Make the deformation of platform.The present embodiment steel plate surface size is 540 × 785mm；Four crossbeams are I-shaped shaped steel, it is of course also possible to
Other sizes are adjusted to, depending on being needed with specific reference to actual experiment, the present embodiment is not limited herein.
Loading frame 500 is connected on basic platform 200, by the loading frame column 51 of left and right two and top head piece
（Second loading frame crossbeam 53）A font is welded into, more firmly.It is to reduce the own variable of loading frame 500 to experimental result
Influence, column and head piece have gap weldig structure using double-rod, to increase the rigidity of loading frame 500, resistance to deformation,
Experimental error is reduced, precision is improved；The width and height of loading frame 500 must be more than the width and height of environmental chamber 31,
The size of loading frame 500 is close to environmental chamber 31 with column, and highly compared with environmental chamber, 31 high 5 ~ 10 centimetres are advisable.This reality
Apply in example, left and right loading frame column 51 and top head piece（Second loading frame crossbeam 53）It is welded into two door fonts；For
Influence of the loading frame own variable to experimental result is reduced, column 51 and head piece have gap weldig structure using double-rod；
Head piece is provided with the support 510 and cams mounted seat board 512 for installing balance pivot；The width and height of loading frame 500 exist
It is that width is 790mm in the present embodiment, is highly 950mm.
Further, the top of environmental chamber 31 is provided with waterfog head 32（For simulated precipitation operating mode）.Environmental simulation
Research on Automatic Measuring System of Temperature/moisture detector is provided with case 31.Environmental chamber 31 is a single open-door DW- in embodiments of the present invention
The transformation of 40 GDJSs is obtained.Its top center position has opened a diameter 15mm holes, to load drive link
161 are inserted into chamber；Its side side wall is also provided with diameter 10mm holes, so as to displacement detection system（By model
GHSI750-4-20mA displacement detector and connecting line composition；0 ~ 10mm of displacement meter range）, system for detecting temperature and servo control
The connecting line of system processed is passed through.Temperature setting device is also equipped with the environmental chamber 31, it is lighting device, temperature display, wet
Degree adjusting means and the waterfog head 32 being previously mentioned, its minimum temperature can as little as -45 DEG C, and the error range of design temperature can
Control is in the range of 0.2 DEG C.Work chamber size 380 × 430 in 540 × 785 × 885mm of appearance and size of environmental chamber 31, case
×600mm。
You need to add is that, the test specimen vessel 800 in environmental chamber 31 is used to hold test salinized soil, and it is by 4
Separate native case 801 is constituted, its shape size size uniformity sample, and it is equal that each soil case 801 is mutually divided into volume by steel plate
Three parts；For convenience of temperature detector 900（Temperature sensor）It is embedded, all offer equidistant diameter per part in casing
8mm five apertures（The axis of soil model is embedded in by the default aperture of native case 801）；It is firm for the native case of enhancing
Degree, is welded with deep floor in the middle；The native case 801 of experiment can surface paste heat-insulation layer, can simulated environment temperature pair after insulation
The influence of salt bulk, can simulate soil body own temperature and change the influence swollen to salt after removal.
To ensure that the range of temperature in experiment effect, environmental chamber 31 is -45 DEG C ~ 60 DEG C.
Further, elastic buffer portion 400 includes the spring 43 being fixed on nut 42 and for spring 43 to be positioned into peace
Spring loaded on loading pressing plate lower surface installs screw 41.Spring is installed screw 41 and is installed on loading pressing plate 16, makes spring 43
It is fixed on nut 42, here, being respectively mounted six equal length springs 43, Loading Control, spring 43 is carried out simultaneously to salinized soil
On some of which soil body salt bulk other soil bodys can be reduced with influence control is adjusted, spring rate is selected according to specific experiment
Select, make deformation adequacy test requirement caused by its loading.
The technical scheme of the embodiment of the present invention, loading frame 500 and environment mould are passed through by a kind of self-balancing lever-loading portion
The loading pressing plate 16 intended in case 31 is connected, and applies basic load by counterweight, and can do multigroup experiment simultaneously, to reach experiment
Effect, can load and be not loaded with to carry out simultaneously.Specifically, six springs are arranged with loading pressing plate 16 and screw 41 are installed,
And buffered by spring 43（Six springs are installed and are respectively provided with buffer spring 43 on screw 41）It is swollen to reduce some of which soil body salt
The influence swollen to other experiment soil body salt so that the load test cycle substantially reduces in salinized soil model room, can realize interior
Be related to dead load, dynamic load in salt is swollen coefficient testing experiment, and various working associated analog experiment.The indoor salinized soil can
Time dependent loading coefficient（Indoor sound carries the swollen coefficient determination of salt marsh earth salt）Experimental provision, material be steel.
Further, dynamic load portion is provided between the first lever 11 and the top of loading frame 500.Dynamic load portion includes cam machine
Structure 600 and the variable speed electric motors, particularly 601 being connected with cam mechanism 600.In this way, dynamic load portion is by the driving cam means of variable speed electric motors, particularly 601
600 rotate, controllable the applied dynamic load frequency of rotating speed of variable speed electric motors, particularly 601.On the other hand, it is reduction and drive link 161
Between friction, steamboat 610 is provided with cam, force of sliding friction is changed into force of rolling friction, reduces friction.In addition,
Variable speed electric motors, particularly 601 is detachably connected with cam mechanism 600.
Further, environmental chamber 31 is the model test soil container for setting up high/low temperature hygrothermal environment, is provided with
The aperture of temperature detector is installed, pore size is bored according to temperature detector inductive head size, and environmental chamber 31 is customizable, can
Size is selected according to test specification salinized soil moulded dimension, the container for containing salinized soil is used as.
Displacement detector 700（Displacement detector 700 is arranged on the top of test specimen vessel 800 in it by a shelf
The displacement of salinized soil is measured）, temperature detector 900, connection line can directly select the assembling product of relevant enterprise, the dress
Put and can also be used for other about displacement and the measurement of temperature.
Another aspect of the present invention carries the swollen coefficient determination experimental method of salt marsh earth salt there is provided a kind of indoor sound, before use
The experimental provision stated carries out experimental implementation, specifically includes following steps：
The salt marsh soil model used in laboratory experiment is made, and by aperture of the temperature detector 900 by the surface of test specimen vessel 800
It is embedded in the soil body；Each soil model is numbered, arranged by certain test sequence, environmental chamber 31 is sequentially placed into
It is interior, vertical drive link 161 is installed, and ensure that vertical drive link 161 does not rub with aperture on environmental chamber 31；Adjust base
Loading frame 500 on plinth platform 200, makes whole device be in level without heeling condition；The bullet of the lower section of regulation loading pressing plate 16
Property buffer part 400 nut 42 make spring 43 be in natural balanced state, and ensure load the level of pressing plate 16；Check errorless laggard
Row loading experiment is operated.
Wherein, according to similitude rule, the salt marsh ground soil model used in laboratory experiment is made；
According to experimental design to its salinized soil carry out respective handling, it is pending finish after be put into batches in test specimen vessel 800
Compaction in layers, temperature detector 900 has been buried by point position, and on each soil model top, installation steel plate and salt bulk are measured
Displacement detecting meter, soil body compacting degree, temperature control etc. must be carried out by the requirement of the swollen test specification of salt marsh earth salt；
Salt marsh soil model based on above-mentioned making, chooses the loading drive link 161 of matching length, one end and the first lever 11
Handing-over, by adjusting lever balance weights so that lever is another in horizontal equilibrium position, drive link 161 when not loading
Hold loading spring 43 and salt marsh soil model top contact and conllinear, and adjusting nut 42 makes buffer spring 43 be in natural equilibrium shape
State；
Loading experiment is proceeded by after inspection is errorless, loading scheme should be advance according to the swollen experiment of salt marsh earth salt and simulation operating mode classification
Formulate.
Displacement detector 700 is utilized in experiment（Can be multiple）, temperature detector 900（Can be multiple）And computer
Measurement, collection salt bulk and soil temperature delta data information, and disposal data carries out analysis calculating.
Compared with prior art, technical scheme, the beneficial effect that can at least reach is：
(1) it is simple to operate using counterweight deadweight is loaded by lever application static load, easily realize, other energy are not consumed,
Lever balance is equally realized with counterpoise counterweight, simple to operation；In the swollen experiment of salt, by change balance pivot position or
Lever length, can obtain different counterweight gravity loads than loading load, be fully able to meet the swollen experiment water loading of indoor salt
Demand, while cam mechanism can easily apply dynamic load, realizes static loading and variable load test requirements document.
(2) six roots of sensation spring buffer load bar under load plate is utilized, loading can be achieved same with being not loaded with, loading multigroup experiment
Shi Jinhang, and ensure that experiment salt marsh soil model is tested under environment of the same race, operating mode of the same race, both reduce experiment and missed
Difference, substantially reduces the test period again, saves time and the energy, in the prior art, and the indoor swollen experiment of salt marsh earth salt is general to list
Individual salt marsh soil model carries out test of many times, and process of the test is extremely cumbersome, and power consumption is very big, significantly limit indoor salt marsh earth salt
The development of swollen experiment, particularly limits the progress of the swollen experimental modelling of salt marsh earth salt, so complete equipment conveniently and efficiently carries out salt
Experiment that stain earth salt is swollen.
(3) experimental provision is simple in construction, cheap.No more than 50,000 yuan name coin of total cost of the present invention, and displacement measurement
Record system and temperature measuring and recording system can be shared with other laboratory apparatus, can reduce further laboratory equipment buying
Take.
The use flow of experimental facilities is as shown in figure 11 in the present embodiment.
Indoor sound is described below and carries the swollen coefficient determination experimental provision of salt marsh earth salt, installation method：
In the technical scheme of the embodiment of the present invention, indoor sound carries the installation method of the swollen coefficient determination experimental provision of salt marsh earth salt
It is：The basic platform 200 processed is arranged to a certain position in laboratory first, loading frame 500 is then welded, and will processing
Good loading frame 500 is connected to basic platform 200, on the steel plate that environmental chamber 31 is placed on to basic platform 200 so that
Loading frame 500 is located at the surface of environmental chamber 31；The first lever 11 is bonded to loading frame 500 by bolt again
On, scale pan is connected, loading pressing plate 16 and elastic buffer portion 400, regulation the first lever 11 balance is installed.
In technical scheme, indoor sound carries the swollen coefficient determination experimental provision of salt marsh earth salt, in Model Pile static load
The flow of experiment is：It is first according to requirement of experiment and related specifications makes salt marsh soil model, arrangement measuring point, buries temperature detection
Device；Placed the good salinized soil model casing of processing and fabricating and be put into environmental chamber 31（GDJS）, press
Loading is carried out according to test requirements document and is not loaded with waiting correlation test；Record experimental data simultaneously analyzes experimental data.
Embodiment of the present invention does not constitute the limitation to the application scope, every in present inventive concept
Within spirit and principle, any modifications, equivalent substitutions and improvements that one of skill in the art can make etc. should be included in
Within protection scope of the present invention.
Claims (10)
1. a kind of indoor sound carries the swollen coefficient determination experimental provision of salt marsh earth salt, it is characterised in that including placing in the horizontal plane
Basic platform, be fixedly installed on the loading frame on the basic platform；Environmental chamber is provided with inside the loading frame,
Test specimen vessel is set in the environmental chamber, and makes the top of the environmental chamber and the top of the test specimen vessel
Between form certain headspace；
Also include being used for the lever-loading portion that in the vertical direction loads the salinized soil in the test specimen vessel, it is described
Lever-loading portion includes being articulated with the first lever set in the horizontal direction above on the outside of the loading frame, described the
One lever two ends are provided with counterweight arm of force adjustment hole, and the lever-loading portion also includes the loading being located in the headspace
Pressing plate, is connected between the loading pressing plate and first lever by vertical drive link；
Elastic buffer portion is provided between at the top of the loading pressing plate and the test specimen vessel；
Displacement detector is additionally provided with the top of the test specimen vessel.
2. indoor sound according to claim 1 carries the swollen coefficient determination experimental provision of salt marsh earth salt, it is characterised in that elasticity
Buffer part includes the spring being fixed on nut and installs spiral shell for the spring by spring location and installation in loading pressing plate lower surface
Silk.
3. indoor sound according to claim 1 carries the swollen coefficient determination experimental provision of salt marsh earth salt, it is characterised in that
Dynamic load portion is provided between the top of first lever and the loading frame, the dynamic load portion includes cam mechanism（600）With
And with described and cam mechanism（600）Connected variable speed electric motors, particularly.
4. indoor sound according to claim 1 carries the swollen coefficient determination experimental provision of salt marsh earth salt, it is characterised in that described
Environmental simulation box top is provided with waterfog head, and moisture detector.
5. indoor sound according to claim 1 carries the swollen coefficient determination experimental provision of salt marsh earth salt, it is characterised in that described
Temperature detector is provided with test specimen vessel.
6. indoor sound according to claim 1 carries the swollen coefficient determination experimental provision of salt marsh earth salt, it is characterised in that described
Range of temperature in environmental chamber is -45 DEG C ~ 60 DEG C.
7. indoor sound according to claim 1 carries the swollen coefficient determination experimental provision of salt marsh earth salt, it is characterised in that described
Test specimen vessel includes four separate casings, and equally spacedly opens up aperture in each tank surface, for temperature
Detector is spent to bury.
8. a kind of indoor sound carries the swollen coefficient determination experimental method of salt marsh earth salt, it is characterised in that usage right requires to appoint in 1-7
The experimental provision of meaning one carries out experimental implementation, specifically includes following steps：
The salt marsh soil model used in laboratory experiment is made, and temperature detector is embedded in by the aperture on environmental chamber surface
In the soil body；
Each soil model is numbered, arranges, is sequentially placed into environmental chamber by certain test sequence, it is vertical to install
Drive link, and ensure that vertical drive link does not rub with aperture on environmental chamber；
The loading frame on basic platform is adjusted, whole device is in level without heeling condition；
The nut in the elastic buffer portion below regulation loading pressing plate makes spring be in natural balanced state, and ensures to load pressing plate water
It is flat；
Check errorless rear progress loading experiment operation.
9. indoor sound according to claim 8 carries the swollen coefficient determination experimental method of salt marsh earth salt, it is characterised in that carry out
The step of loading experiment is operated is specifically included, and rotating speed is adjusted after variable speed electric motors, particularly by starting, and makes the cam mechanism with motor connection
Simulate dynamic load load condition, the swollen change of salt under the conditions of the dynamic load application of simulation different frequency.
10. indoor sound according to claim 8 carries the swollen coefficient determination experimental method of salt marsh earth salt, it is characterised in that enter
The step of row loading experiment is operated specifically includes,
The counterweight of first lever one end is adjusted, makes the first lever balance, it is relative in the counterweight with first lever one end
The other end add weights, to simulate the different swollen changes of dead load situation salt.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107632139A (en) * | 2017-10-17 | 2018-01-26 | 中交第公路勘察设计研究院有限公司 | Consider each salt marsh earth salt expansive force test device and usage to confined pressure |
| CN108020311A (en) * | 2017-12-29 | 2018-05-11 | 苏州市计量测试研究所 | Device for peeling is exempted from a kind of counterweight loading of electronic crane scale |
| CN108151862A (en) * | 2018-02-11 | 2018-06-12 | 苏州市计量测试研究所 | A kind of counterweight for electronic crane scale detection device loads zero balance device |
| CN108279168A (en) * | 2018-02-01 | 2018-07-13 | 上海交通大学 | A kind of pulling force buffer oil cylinder model test simulator |
| CN108333329A (en) * | 2018-02-09 | 2018-07-27 | 安徽省金田建筑设计咨询有限责任公司 | The multifunction test device of on-site measurement sulfate-salinized soil salt expandability |
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| CN108914909A (en) * | 2018-07-24 | 2018-11-30 | 中铁二院工程集团有限责任公司 | A kind of measuring method of brining ground foundation salt bulk |
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| CN110082508A (en) * | 2019-06-04 | 2019-08-02 | 中国科学院寒区旱区环境与工程研究所 | The swollen characteristic test apparatus of salt marsh earth salt under the conditions of a kind of deflection constraint |
| CN111426571A (en) * | 2020-01-16 | 2020-07-17 | 大连理工大学 | Rock creep test method and device under multi-environment action |
| CN113029802A (en) * | 2021-04-20 | 2021-06-25 | 中南大学 | High-precision testing method for equivalent elastic statics parameters of dot matrix material |
| CN113189308A (en) * | 2021-05-11 | 2021-07-30 | 西安建筑科技大学 | Deformation testing device for saline soil foundation |
| CN113959842A (en) * | 2021-10-19 | 2022-01-21 | 天津大学 | Indoor model test device and method for bearing characteristics of composite foundation under salt expansion and salt dissolution |
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| CN107632139A (en) * | 2017-10-17 | 2018-01-26 | 中交第公路勘察设计研究院有限公司 | Consider each salt marsh earth salt expansive force test device and usage to confined pressure |
| CN109781774A (en) * | 2017-11-12 | 2019-05-21 | 兰州城市学院 | A kind of soil function measuring device |
| CN108020311A (en) * | 2017-12-29 | 2018-05-11 | 苏州市计量测试研究所 | Device for peeling is exempted from a kind of counterweight loading of electronic crane scale |
| CN108279168A (en) * | 2018-02-01 | 2018-07-13 | 上海交通大学 | A kind of pulling force buffer oil cylinder model test simulator |
| CN108279168B (en) * | 2018-02-01 | 2024-04-23 | 上海交通大学 | Tensile force buffer oil cylinder model test simulation device |
| CN108333329A (en) * | 2018-02-09 | 2018-07-27 | 安徽省金田建筑设计咨询有限责任公司 | The multifunction test device of on-site measurement sulfate-salinized soil salt expandability |
| CN108151862A (en) * | 2018-02-11 | 2018-06-12 | 苏州市计量测试研究所 | A kind of counterweight for electronic crane scale detection device loads zero balance device |
| CN108151862B (en) * | 2018-02-11 | 2020-12-08 | 苏州市计量测试院 | Weight loading zero balance device for electronic hanging scale detection device |
| CN108693333B (en) * | 2018-06-14 | 2021-05-28 | 中铁二院成都勘察设计研究院有限责任公司 | Method for determining salt expansion coefficient of coarse particle sodium sulfate saline soil |
| CN108693333A (en) * | 2018-06-14 | 2018-10-23 | 中铁二院成都勘察设计研究院有限责任公司 | A kind of method of the swollen coefficient of determining coarse granule sodium sulphate salt marsh earth salt |
| CN108914909A (en) * | 2018-07-24 | 2018-11-30 | 中铁二院工程集团有限责任公司 | A kind of measuring method of brining ground foundation salt bulk |
| CN110082508A (en) * | 2019-06-04 | 2019-08-02 | 中国科学院寒区旱区环境与工程研究所 | The swollen characteristic test apparatus of salt marsh earth salt under the conditions of a kind of deflection constraint |
| CN111426571A (en) * | 2020-01-16 | 2020-07-17 | 大连理工大学 | Rock creep test method and device under multi-environment action |
| CN113029802A (en) * | 2021-04-20 | 2021-06-25 | 中南大学 | High-precision testing method for equivalent elastic statics parameters of dot matrix material |
| CN113029802B (en) * | 2021-04-20 | 2022-10-18 | 中南大学 | High-precision testing method for equivalent elastic statics parameters of dot matrix material |
| CN113189308A (en) * | 2021-05-11 | 2021-07-30 | 西安建筑科技大学 | Deformation testing device for saline soil foundation |
| CN113959842A (en) * | 2021-10-19 | 2022-01-21 | 天津大学 | Indoor model test device and method for bearing characteristics of composite foundation under salt expansion and salt dissolution |
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