CN206057311U - A kind of salt is swollen tester load simulating device - Google Patents

Abstract

The utility model discloses a kind of swollen tester load simulating device of salt, it is characterized in that, including the top cover at the interior tube inner chamber top surface positioned at the swollen tester sample bucket of salt, top cover lower surface constitutes interior tube inner chamber top surface, lid periphery and interior tube inner chamber perisporium form the contact that can slide up and down, also include the dowel steel for being arranged positioned at top cover upper surface straight up, also including a horizontally disposed and lever beam of the apical grafting above dowel steel, lever beam one end is for support end and support end upper surface is spacing by lever position-limit mechanism, the lever beam other end is for loading end and loading end is provided with counterweight loading disc.This utility model has simple structure, beneficial to enforcement, can realize load simulation preferably to improve the advantage of test simulation effect.

Description

A kind of salt is swollen tester load simulating device

Technical field

This utility model is related to a kind of swollen tester of salt of the swollen harm research field of salting earth salt, and in particular to a kind of salt is swollen The load simulating device of tester.

Background technology

Salinized soil isSolonchakWithAlkaline earthAnd various salinization,Alkali-affected soilGeneral name.Solonchak refers to soluble-salt in soil Content reaches notable harm to plant growthGreat soil group.Salt content index is different because different salt are grouped into.Alkaline earth refers to soil Volume exchangeable sodium containing harm plant growing and change soil property in earth.Salinized soil be mainly distributed on inland arid,Half Arid area, coastal region is also distributed.About 897.0 ten thousand square kilometres of whole world salinized soil area meter, accounts for world land total The 6.5% of area, accounts for the 39% of the arid biogeographic zone gross area.Chinese salinized soil area there are about more than 20 ten thousand square kilometres, account for the total face in territory Long-pending 2.1%.The salt of salinized soil is swollen to cause ground tympanites, cause the constructure grounds such as highway, airport, house to produce bulge, open The engineering disease such as split；The engineerings such as the regional road of NORTHWEST CHINA, pipeline, transmission of electricity, airport, Fang Jian relate generally to salting earth salt Distension syndrome does harm to problem.Therefore for salinized soil research for saline soil area building build very have realistic meaning.

The salt distension syndrome evil of salinized soil is solved, most basic is that the swollen experimental study of salt is passed through to understand the swollen machine of salting earth salt Reason, influence factor and its affecting laws.Salt is swollen, and test is carried out using the swollen tester of salt.At present, the swollen tester of existing salt is also deposited In following more deficiency：1. temperature can only be done（Freeze-thaw cycle, thermograde）With the swollen test of salt under load action, it is impossible to realize The swollen test of water content continually varying drying and watering cycle salt under constant temperature, it is impossible to realize freeze-thaw cycle and drying and watering cycle coupling under load action The swollen test of salt of conjunction；2. function is simple, and integration degree is low；3. using integrally-built sample bucket, and the swollen test sample chi of salt Very little highly larger, the sample bucket constraint swollen to the vertical salt of sample during test substantially, causes result of the test substantially less than normal；4. test bucket Height is certain, causes specimen height size adjusting limited.

Therefore, the function of the swollen test apparatuses of salt how is further improved, improving the precision of the swollen test apparatuses of salt, to more preferable Ground provides technical conditions for the swollen mechanism of salt, influence factor and its affecting laws for studying salinized soil, and becoming this area has considered Problem.

In order to improve test accuracy, applicant considers to devise a kind of swollen testing equipment of high accuracy salt, including sample bucket and Temperature regulation system, sample bucket include outer barrel and the inner core being arranged in outer barrel, and outer barrel is vertically installed on sample gantry, temperature Regulator control system includes a circulation fluid temperature control equipment A, circulation fluid temperature control equipment A pass through circulation fluid pipeline and outer barrel with The circumferential circulation fluid chamber circulation connection that gap is constituted between inner core, its feature is that interior tube inner chamber top face is disposed adjacent There is a top circulation fluid chamber, top circulation fluid chamber is followed by circulation fluid pipeline and the circulation fluid temperature control equipment A Ring connection is arranged；Interior tube inner chamber subjacent has been disposed adjacent a bottom cycle sap cavity room, and bottom cycle sap cavity room is by following Ring liquid pipe road and a circulation fluid temperature control equipment B circulation connection are arranged.

So, thermograde control can be realized respectively by the circulation fluid of different temperatures at the top of inner core and bottom so that More preferably simulation can be there is the actual environment situation of the temperature difference by the downward different buried depth stratum of earth's surface during specimen test, improve test Simulation effect, improves test accuracy, and the salt expandability to salinized soil is better achieved can be studied.

But how just should conveniently to realize wherein in sample bucket that load simulation, preferably to improve test simulation effect, becomes There is the problem of considered solution.

Utility model content

For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is：How a kind of knot is provided Structure is simple, beneficial to enforcement, the salt that can realize load simulation preferably to improve test simulation effect is swollen tester load simulation Device.

In order to solve above-mentioned technical problem, this utility model employs following technical scheme.

A kind of salt is swollen tester load simulating device, it is characterised in that include the inner core positioned at the swollen tester sample bucket of salt Top cover at inner chamber top surface, top cover lower surface constitute interior tube inner chamber top surface, and lid periphery and the formation of interior tube inner chamber perisporium can be upper and lower The contact of slip, also includes the dowel steel for being arranged positioned at top cover upper surface straight up, is also horizontally disposed with simultaneously including one Lever beam of the apical grafting above dowel steel, lever beam one end is for support end and support end upper surface is spacing by lever position-limit mechanism, The lever beam other end is for loading end and loading end is provided with counterweight loading disc.

As such, it is possible to rely on load simulating device, the load simulation to salinized soil is realized, realizes that freeze thawing is followed under load action The swollen test of salt that ring is coupled with drying and watering cycle.Test simulation effect is improved, is improved to salinized soil performance study analysis ability.Together When, negative pressure is loaded by way of lever, one is the size for amplifying load by lever principle, and two is can preferably to keep test During carrying size it is constant, with ensure dead load simulation effect.

Further, lever position-limit mechanism includes a fulcrum beam being horizontally placed on above lever beam, leans on fulcrum beam Screw thread spins and is vertically provided with a regulating bolt, and regulating bolt lower end and lever beam contact to form fulcrum.As such, it is possible to more preferably Realize regulation to lever level in ground, it is ensured that the calculating of carrying accurately and keeps load steady constant.

Further, the upper surface of lever beam loading end is additionally provided with air level, preferably can judge to adjust lever beam Level.

Further, lever beam and regulating bolt lower end contact position and with dowel steel tip contact at be male-female engagement Spherical structure.As such, it is possible to be accurately positioned out force application location, it is ensured that load loading effect.

Yet further, the top surface middle part of counterweight loading disc upwardly extends the vertical peg of to be formed one and is articulated in peg On a hook in the middle part of beam loading end lower surface.So ensure that the counterweight weight of loading concentrates a point for being applied to lever beam On, beneficial to the precision for improving load simulation calculating.

Used as optimization, top cover inner hollow arranges to form top circulation fluid chamber, correspondence dowel steel position in the middle part of top cover inner chamber Put and also there is connector of the entirety in taper type being vertically connected with.

So, circulation fluid chamber in top is convenient connects top circulation fluid to realize the stepped temperature difference, improves ambient parameter mould Intend effect.The connector of taper type can better ensure that the load pressure for being delivered to sample top surface is evenly load.

In sum, this utility model has simple structure, beneficial to enforcement, can realize load simulation preferably to improve The advantage of test simulation effect.

Description of the drawings

Fig. 1 is a kind of structural representation of the swollen tester embodiment of multi-functional salt for employing this utility model structure.

Fig. 2 is the cross section structure diagram of independent temperature control expansion box in Fig. 1.

Fig. 3 is the structural representation of independent sample barrel section in Fig. 1.

Fig. 4 is the structural representation of independent water adjusting valve in Fig. 1.

Fig. 5 is the structural representation of independent inner cylindrical portion in Fig. 1.

Fig. 6 is the structural representation of independent collet part in Fig. 1.

Fig. 7 is the structural representation of independent header field in Fig. 1.

Fig. 8 is the structural representation of independent bottom cover member in Fig. 1.

Fig. 9 is the part-structure schematic diagram of independent two interior shell rings in Fig. 1.

Figure 10 is the structural representation of independent gas pressure regulator part in Fig. 1.

Figure 11 is the structural representation that sample bucket cover portion can be shown in Fig. 1.

Specific embodiment

It is new to this practicality with reference to a kind of swollen tester of multi-functional salt and its accompanying drawing for employing this utility model structure Type is described in further detail.

Optimum embodiment：As shown in figs. 1-11, a kind of swollen tester of multi-functional salt, including sample bucket and temperature adjusting system System, sample bucket include outer barrel 18 and the inner core being arranged in outer barrel, and outer barrel 18 is vertically installed on sample gantry 13, temperature adjusting System includes a circulation fluid temperature control equipment A6, circulation fluid temperature control equipment A6 pass through circulation fluid pipeline and outer barrel with it is interior The circumferential circulation fluid chamber circulation connection that gap is constituted between cylinder, is also included for realizing that the humidity to inner core pilot scale sample is controlled Sample humidity control system.

This swollen tester of sample salt when in use, can realize more ambient parameter simulations, it is possible to achieve dry to sample The control of humidity, and then the swollen test of water content continually varying drying and watering cycle salt under constant temperature is realized, help is realized to salinized soil more Plus comprehensively research and analyse.

In present embodiment, the sample humidity control system includes a container that adds water being arranged at outside sample bucket 4, the container 4 that adds water is connected to inner tank theca and inner core inner space by pipeline.Can so realize weighing needed for test Water is added to and adds water in container 4, and then control is entered in interior tube inner chamber, realizes that the adjustment to sample humidity is controlled.During enforcement, The container 4 that adds water adopts installing rack 23 to be arranged on and carries out add water moistening by current deadweight to facilitate higher than the position at the top of sample bucket. The container that further adds water is provided with water adjusting valve 27 on the pipeline between sample bucket, to facilitate control to add water speed, it is to avoid plus Water is too fast to be caused humidity uneven and affects result of the test.

Wherein, the sample humidity control system includes an air compressor machine 5, and 5 outlet side of air compressor machine passes through gas pipeline A temperature control expansion box 2 is connected to, the expansion box attemperating unit for realizing internal temperature control on temperature control expansion box 2, is provided with, temperature Control expansion box gas outlet is connected to by gas pipeline and is arranged in the air dried cell of inner core inwall, is provided with out in air dried cell QI KOU is simultaneously connected to outside sample bucket by outlet pipe 33.Air compressor machine is preferably air compressor machine of the band without hot absorption drier.

As such, it is possible to lean on air compressor machine that dried air is pressed in temperature control expansion box, air adjustment is tried to meet After air pressure and temperature needed for testing, it is re-fed in the air dried cell of inner core inwall, the sample in internal tube inner chamber enters sector-style It is dry, changed with controlling its humidity, the control simulation of sample humidity is better achieved, test simulation effect is improved.Further, Gas pressure regulator 40 is provided with gas pipeline between air compressor machine outlet side and temperature control expansion box, for controlling temperature control expansion box Internal air pressure.Its air pressure can be made to keep being scheduled between 10kPa～30kPa, to ensure to air-dry requirement, and do not destroy soil sample Structure.During enforcement further, gas storage temperature sensor 1 is additionally provided with temperature control expansion box 2, for realizing temperature control expansion box 2 The detection of interior air themperature is with conveniently regulating and controlling.

Wherein, a circulation fluid interlayer is provided with the temperature control expansion box, circulation fluid interlayer passes through pipeline and one is followed Ring liquid temp control device C8 circulation connections.So, by circulation fluid controlling to try when the air in temperature control expansion box reaches test Sample is temperature required, it is to avoid air themperature and the inconsistent impact to sample precision of sample.

Wherein, temperature control expansion box includes outer case 3 and interior case 10,3 one inner sides of 10 1 lateral surface of interior case and outer case Face fits, and fixed and air compressor machine outlet side is communicated to interior case by the side, and remaining side and upper bottom surface are vacantly arranged and structure Into circulation fluid interlayer, support I-steel 12 between 3 inner bottom surface of 10 bottom surface of interior case and outer case, is provided with.This spline structure is more closed Reason, the setting for facilitating circulation fluid interlayer and the installation for facilitating gas pipeline interface.Further, S-shaped disk is provided with interior case Around circulation fluid coil pipe 11,11 two ends of circulation fluid coil pipe are connected by pipeline and circulation fluid temperature control equipment C8 circulation. As such, it is possible to the effective control to temperature control gas storage the temperature inside the box is better achieved.

Wherein, the air dried cell includes the annular groove being circumferentially disposed on inner core inwall, annular groove notch position Put closing and be provided with a circle baffle plate 38, on baffle plate 38, offer some passages, formed between baffle plate and annular groove for The ventilating layer 36 of gas pipeline connection.

So, the structure of the air dried cell, can realize air-drying for the sample in internal tube inner chamber, well while and not The process of sample itself test can be interfered with, it is ensured that result of the test is accurately and reliably.

Wherein, baffle surface is provided with grenadine 37, can so be better protected from sample blocking passage, it is also possible to avoid Sample enters passage and affects test accuracy.Further soft plastic board and inner surface and interior can also be adopted by baffle plate during enforcement Tube inner chamber surface is consistent；Conveniently can realize installing and seal, preferably to reduce the impact to testing.Yet further, lead to Sand grains is filled with stratification of wind 36, can have been avoided in soft plastic board well while sand grains can ensure that ventilation drying effect It is recessed, it is ensured that baffle inner wall profile is consistent with inner core surface of internal cavity, at utmost reduce the impact to test accuracy.As preferred sand Homogeneous sand grains or high rigidity sand grains of the grain using 1 millimeter of particle diameter（Such as normal sand sand grains）, the effect above can be caused to reach most preferably.

Wherein, interior tube inner chamber top face has been disposed adjacent a top circulation fluid chamber, and top circulation fluid chamber passes through Circulation fluid pipeline connects setting with circulation fluid temperature control equipment A6 circulations；Interior tube inner chamber subjacent has been disposed adjacent one Individual bottom cycle sap cavity room, bottom cycle sap cavity room passes through circulation fluid pipeline and a circulation fluid temperature control equipment B7 circulation connects It is logical to arrange.

So, thermograde control can be realized respectively by the circulation fluid of different temperatures at the top of inner core and bottom so that More preferably simulation can be there is the actual environment situation of the temperature difference by the downward different buried depth stratum of earth's surface during specimen test, improve test Simulation effect, improves test accuracy, and the salt expandability to salinized soil is better achieved can be studied.

Wherein, top cover 32 is provided with interior tube inner chamber top surface, 32 lower surface of top cover constitutes interior tube inner chamber top surface, in top cover 32 The hollow setting in portion forms top circulation fluid chamber, and lid periphery and interior tube inner chamber perisporium form the contact that can slide up and down, top cover On be vertically provided through temperature sensor fixing hole 32-3 and humidity sensor installing hole 32-4, temperature sensor fixing hole is used It is in installing sample temperature sensor 16 and the display portion of sample temperature sensor 16 is exposed to above sample bucket, wet Degree sensor mounting hole is used to install humidity sensor 25 and so that humidity sensor 25 is exposed to above sample bucket；Above top cover It is additionally provided with for detecting that top cover moves up the instrumentation 26 of distance.

So using top cover simultaneously as the basis for arranging top circulation fluid chamber, and realize salting soil expansion detection Basis, with simple structure, the advantages of easy to detect, while temperature sensor and humidity sensor can also conveniently be arranged with anti- Feedback detection salting soil sample internal temperature and humidity condition, it is ensured that the accurate reliability of state modulator in process of the test.

Wherein, instrumentation 26 is electronic centigrade scale and is fixed on sample gantry, electronic centigrade scale lower end contact Contact with top cover upper surface；Can ensure that the accuracy of accuracy of detection.

Wherein, it is additionally provided with above top cover 32 for the load simulating device to top cover applying downward pressure.

As such, it is possible to rely on load simulating device, the load simulation to salinized soil is realized, realizes that freeze thawing is followed under load action The swollen test of salt that ring is coupled with drying and watering cycle.Test simulation effect is improved, is improved to salinized soil performance study analysis ability.

Wherein, the load simulating device, including the dowel steel 32-5 for being arranged positioned at top cover upper surface straight up, Also including a horizontally disposed and lever beam 15 of the apical grafting above dowel steel, lever beam one end is support end and support end upper table Face is spacing by lever position-limit mechanism, and the lever beam other end is that loading end and loading end are provided with and add for the counterweight for loading counterweight 17 Load plate 9.So, load negative pressure by way of lever, one is the size for amplifying load by lever principle, two be can be preferably In holding process of the test, carrying size is constant, to ensure the simulation effect of constant load.During enforcement further, lever limit Position mechanism includes a fulcrum beam being horizontally placed on above lever beam, spins by screw thread and be vertically provided with a tune on fulcrum beam Section bolt 24,24 lower end of regulating bolt and lever beam contact to form fulcrum.As such, it is possible to the tune to lever level is better achieved Section, it is ensured that the calculating of carrying accurately and keeps load steady constant.During enforcement, the upper surface of lever beam loading end is additionally provided with Air level 14, preferably can judge to adjust the level of lever beam.Further, lever beam and regulating bolt lower end contact position with And with dowel steel tip contact at be the spherical structure of male-female engagement.As such, it is possible to be accurately positioned out force application location, it is ensured that negative Carry loading effect.Yet further, the top surface middle part of counterweight loading disc upwardly extends the vertical peg of to be formed one and is articulated in On a hook in the middle part of peg beam loading end lower surface.So ensure that the counterweight weight of loading is concentrated and be applied to the one of lever beam On individual point, beneficial to the precision for improving load simulation calculating.Yet further, in the middle part of top cover inner chamber, correspondence dowel steel position also has Connector of the entirety being vertically connected with taper type, to be preferably delivered to load pressure on sample in the form of evenly load Surface.

Wherein, bottom 35 is provided with interior tube inner chamber bottom surface, 35 upper surface of bottom forms interior tube inner chamber bottom surface, inside bottom Hollow setting forms bottom cycle sap cavity room, and bottom periphery and interior tube inner chamber perisporium form the contact that can slide up and down, under bottom Side is provided with the bottom height adjustment mechanism that can realize that bottom height and position is adjusted.During enforcement, 35 bottom surface of bottom is additionally provided with With bottom cycle liquid chamber bottom circulation fluid entrance 35-1 and bottom circulation fluid outlet 35-2.

So, by bottom as salting soil sample holding members and the basic component of bottom cycle sap cavity room, simple structure Reliable, bottom can be slided up and down and can be adjusted by height adjustment mechanism so as to can conveniently realize the adjustment of specimen height, carry High test effect.

Wherein, the bottom height adjustment mechanism includes a height adjustment bolt 20, and height adjustment bolt 20 vertically sets Put and screw thread spins cooperation in the screwed hole in the middle of sample bottom of the barrel, height adjustment bolt upper end is rotationally matched somebody with somebody by bearing 34 Conjunction is connected on bottom 35, and height adjustment bolt lower end is provided with altitude mixture control handle.

As such, it is possible to the convenient adjustment realized by rotation height regulation handle to specimen height, simple structure, adjustment side Just it is quick reliable.

Wherein, bottom height adjustment mechanism, also including one and height adjustment bolt spaced rule 22 arranged side by side, Rule 22 is fixed on sample gantry, and an altitude location chi 21 is additionally provided with height adjustment bolt lower section, and height is fixed Position chi 21 one end can slide up and down to spacing cooperation on rule 22, the other end by be fixed in height adjustment bolt 20 one Individual bearing and height adjustment bolt 20 are rotatably connected.As such, it is possible to more easily directly observed reading obtains bottom Height is adjusted, and then obtains specimen height.

Wherein, outer barrel includes the outer barrel body of cylindrical shape and positioned at an entirety of outer barrel body bottom portion bottom in the form of annular discs Support 19, arranges the screwed hole coordinated with height adjustment bolt 20 in the middle part of collet 19, two circulation liquid pipes are additionally provided with collet 19 Road via and an escape pipe via, collet upper surface are coaxially arranged with two circle draw-in grooves, outer barrel body and inner core each clamping And sealing is fixed in correspondence draw-in groove.So, with simple structure, the advantage of installation convenient for assembly.

Wherein, outer barrel also includes a sample bucket capping 30 positioned at outer barrel body upper end, and sample bucket covers 30 level sides To projection be in that interior tube inner chamber is exposed at annular and middle part, sample bucket capping lower surface and outer barrel body upper end and inner core upper end Any one is sealedly and fixedly connected and coordinates for the embedded grafting that can slide up and down with another（Which is made integrally not affect interior Cylinder it is vertically movable）, in sample bucket capping 30, it is provided with the interface for accessing the container conduit that adds water the connection by inside Pipeline 29 is connected to interior tube inner chamber, is additionally provided with for accessing the interface 31 of the gas pipeline of temperature control expansion box in the capping of sample bucket And air dried cell is connected to by internal connecting pipe.So with simple structure, installation convenient for assembly and pipe arrangement Advantage.When being embodied as, sample bucket capping lower surface has to be fixed for the outer barrel fixed with outer barrel body upper end grafting sealing With cannelure, with the annular flange flange that a circle is downward inside outer barrel fixation cannelure, annular flange flange lower end can slide up and down to Grafting coordinates in a capping connection cannelure of inner core upper surface.So, i.e., can facilitate sample bucket capping complete and The realization sealing easy to connect of inner core and outer barrel body, makes which not affect inner core moving up and down in specimen again, protects Confirmatory test precision reliability.

In present embodiment, the inner core vertically by multiple interior shell rings 28 splicing obtain, between adjacent inner barrel section 28 by In lower section, a shell ring upper surface taper type structure upwards is inserted into the corresponding taper hole shape structure in shell ring lower surface in top and matches somebody with somebody Close and be connected, and shell ring does not constrain shell ring in upper end and moves up in lower end, between adjacent inner barrel section at cooperation outside be provided with it is close Sealer 41 is for the circumferential circulation fluid chamber outside completely cutting off fit clearance and inner core.So cause in the swollen process of the test of salt, it is maximum Suffered by the axial expansion of degree reduction sample, the constraint of inner core inwall, substantially reduces the impact to the vertical swell increment of sample, pole The earth improves test accuracy.

During enforcement as diaphragm seal 41 a kind of version, can be using elastica and be provided separately within adjacent two At individual interior shell ring cooperation, such consumptive material is less.Can also be the cylindrical shape diaphragm seal using the whole inner core peripheral surface of encirclement, this Sample can better ensure that sealing effectiveness and reduce effect of constraint value of the diaphragm seal itself to the vertical expansion of sample.Preferably seal Film upper and lower ends are fixed in the upper and lower ends of outer barrel inwall, circulation fluid is circulated in outer barrel inwall and is sealed intermembranous, circulation fluid During circulation, diaphragm seal can be attached on interior bucket outer wall, so existing good sealing effectiveness, also have good temperature control effect, and will The impact that sample vertically expands is preferably minimized.

In present embodiment, at least one air dried cell is correspondingly arranged in each on shell ring and at least circumference is upper uniform Four water inlets for adding water to sample of arrangement.Humidity control effect can more preferably and be more uniformly improved so.

In this specific embodiment, the circulation fluid temperature control equipment A, circulation fluid temperature control equipment B and circulation fluid Temperature control equipment C adopts High Precision Low Temperature groove, control accuracy high advantage convenient with temperature control.

Above-mentioned salt is swollen, and tester has the advantages that：1. realize water content continually varying dry and wet under temperature-controllable Test that cyclic salt is swollen；2. realize the swollen test of salt that freeze-thaw cycle is coupled with drying and watering cycle under load action；3. function is integrated Degree is high, can realize under the influence factors such as freeze-thaw cycle, thermograde, load, drying and watering cycle and each influence factor's coupling condition The swollen test of salt, and above each factor can manual control；4. stagewise sample bucket substantially reduces swell increment vertical to sample Impact, test result more accurate；5. sample drum head supporting plate height can be adjusted up and down, realize specimen height in sample bucket（Interior bucket） Any setting in altitude range.

Performance detection test is carried out to above-mentioned tester, result of the test shows the sample of a high 30cm, diameter 10cm Water content drop to 3%～6% from 20% and only need 2d～4d（When temperature is low, the time is longer, and current temperature is needed at 0～5 DEG C 6d）, the salt bulk measured using stagewise sample bucket is substantially big compared with the salt bulk that monoblock type sample bucket is measured, and therebetween Gap with specimen height increase and increase, and with specimen finish increase and slightly have reduce.During drying and watering cycle circulation experiment The air pressure of air in calorstat should be strictly controlled, to avoid air pressure from crossing havoc soil sample structure, is preferably controlled within 30kPa.

Therefore the swollen tester of above-mentioned salt can realize more environment parameter controls, improve test simulation effect, with structure Simply, test accuracy is high, and sample parameter is flexibly adjustable, advantage that can be more than test method, is highly suitable for salinized soil performance Research.

Claims (6)

1. the swollen tester load simulating device of a kind of salt, it is characterised in that include in the inner core of the swollen tester sample bucket of salt Top cover at the top surface of chamber, top cover lower surface constitute interior tube inner chamber top surface, and lid periphery and interior tube inner chamber perisporium are formed and can go up downslide Dynamic contact, also includes the dowel steel for being arranged positioned at top cover upper surface straight up, is also horizontally disposed with and pushes up including one The lever beam being connected on above dowel steel, lever beam one end is for support end and support end upper surface is spacing by lever position-limit mechanism, thick stick The bar beam other end is for loading end and loading end is provided with counterweight loading disc.

2. the swollen tester load simulating device of salt as claimed in claim 1, it is characterised in that lever position-limit mechanism includes The fulcrum beam being horizontally placed on above lever beam, spins by screw thread on fulcrum beam and is vertically provided with a regulating bolt, adjusts spiral shell Bolt lower end and lever beam contact to form fulcrum.

3. the swollen tester load simulating device of salt as claimed in claim 2, it is characterised in that the upper surface of lever beam loading end It is additionally provided with air level.

4. the swollen tester load simulating device of salt as claimed in claim 2, it is characterised in that lever beam and regulating bolt lower end Contact position and with dowel steel tip contact at be the spherical structure of male-female engagement.

5. the swollen tester load simulating device of salt as claimed in claim 1, it is characterised in that in the top surface of counterweight loading disc Portion is upwardly extended on the hook that the vertical peg of to be formed one is articulated in the middle part of peg beam loading end lower surface.

6. the swollen tester load simulating device of salt as claimed in claim 1, it is characterised in that top cover inner hollow arranges to be formed Top circulation fluid chamber, in the middle part of top cover inner chamber, correspondence dowel steel position also has connection of the entirety in taper type being vertically connected with Body.