CN108732036A - The simulation soil body bears the lower drying and watering cycle breathing test method of load effect and device - Google Patents
The simulation soil body bears the lower drying and watering cycle breathing test method of load effect and device Download PDFInfo
- Publication number
- CN108732036A CN108732036A CN201810575587.7A CN201810575587A CN108732036A CN 108732036 A CN108732036 A CN 108732036A CN 201810575587 A CN201810575587 A CN 201810575587A CN 108732036 A CN108732036 A CN 108732036A
- Authority
- CN
- China
- Prior art keywords
- sample
- drying
- permeable stone
- load
- transmission plate
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/062—Special adaptations of indicating or recording means with mechanical indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0224—Thermal cycling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
- G01N2203/0242—With circulation of a fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0605—Mechanical indicating, recording or sensing means
Abstract
The invention discloses a kind of simulation soil bodys to bear the lower drying and watering cycle breathing experimental rig of load effect, bottom is placed with big permeable stone in compression container, it is provided on big permeable stone and is inserted in sample in cutting ring, sample is equipped with small permeable stone, pressure transmission plate is provided on small permeable stone, it is provided with load bar above pressure transmission plate, two head end of load bar is connect through montant with consolidation apparatus, loading bolt shaft contacts at the top of its bottom after load bar and pressure transmission plate, loading bolt top surface is contacted with dial gauge bottom measurement head, dial gauge is fixed in dial gauge fixed link, the dial gauge fixed link other end is connect with upright bar, bottom of upright rod is fixed on compression container.The experimental rig and method of the present invention is not required to unload sample during entire drying and watering cycle, avoid the disturbance to sample, only need to it is formal carry out experiment before, different original state samples are dried to from water swelling stable state the moisture content state of test requirements document alcohol burn time T carry out it is pre- before measure.
Description
Technical field
The present invention relates to a kind of simulation soil bodys to bear the lower drying and watering cycle breathing test method of load effect and device, belongs to rock
Geotechnological journey, highway construction field.
Background technology
Admaic earth is a kind of widely distributed special soils in Southwestern China portion, sensitive with changing to ambient humidity, multiple cracking,
The strong characteristics such as breathing and strength retrogression, largely by constructing based on admaic earth under the collective effect of drying and watering cycle and load
Object destroys, and loss is huge.The wetting-drying test method and device used at present is mostly under simulation soil body no-load effect
Swell-shrinking deformation situation be required for unloading sample during drying and watering cycle for there is the simulation of the lower swell-shrinking deformation of lotus effect, it is right
The disturbance of sample is too big, this differs greatly with engineering practice.But the presence of such test method and device, mainly have
Following two reasons：(1) laboratory test room, which lacks, completely can carry out drying and watering cycle to sample and not dismantle the experiment dress of sample
It sets；(2) in addition to constant temperature oven, lack the relevant method to sample heating, drying.
Invention content
The object of the present invention is to provide a kind of simulation soil body bear the lower drying and watering cycle breathing test method of load effect and
Device.This method and device are not required to unload sample during entire drying and watering cycle, and constant temperature is not needed in whole process
The heating, drying of sample can be realized in baking oven.
Technical scheme of the present invention：A kind of simulation soil body bears the lower drying and watering cycle breathing test method of load effect, special
Sign is：The test method includes following steps：
A, upright bar is fixedly connected with compression container floor, and big permeable stone is positioned over compression container bottom；
B, required initial aqueous rate and compactness cutting ring sample are made according to testing program, together together with cutting ring by sample
It is placed on big permeable stone, and cutting ring mouth is upward；
C, small permeable stone is placed in sample top surface, and pressure transmission plate is placed on small permeable stone, weigh the quality of whole device,
It is denoted as M；
D, load bar is set above pressure transmission plate, load bar both ends are connect with consolidation apparatus by montant, loading bolt is worn
Threaded hole in the middle part of load bar is crossed, loading bolt bottom is made to be contacted with pressure transmission plate top surface；
E, dial gauge is fixedly mounted in dial gauge fixed link one end, and the other end is fixedly connected with upright bar, and makes dial gauge bottom
Measurement head is withstood on loading bolt top surface；
F, consolidation apparatus bottom end is loaded into lever regulating horizontal by adjusting loading bolt, percentage meter reading is zeroed, increased
Counterweight loads sample, until sample consolidation deformation is stablized, reads percentage meter reading；
G, after stabilization by consolidation, the water filling into compression container records percentage meter reading at regular intervals, until dial gauge is read
Number tends towards stability, and the difference read after dial gauge final reading and stabilization by consolidation is the swell increment of sample；
H, after expansion is stablized, excessive moisture in compression container is extracted out, is absorbed residual moisture in container with filter paper, to pressure
Alcohol is added in capacity reducing device, lights alcohol to sample heating, drying, and record alcohol burn drying time t and percentage meter reading,
One cycle is then completed to heating, drying to desired moisture content state, the difference that percentage meter reading and expansion are read after stablizing at this time
The as shrinkage of sample；
J, by weighing total quality m after drying time t, using initial mass M with drying the t times after total quality m it
Difference calculates sample moisture content after the sample drying t times, and after carrying out multigroup test, final determination is dried to required moisture content shape
The drying time T of state.
The simulation soil body above-mentioned bears the lower drying and watering cycle breathing test method of load effect, and in step A, retaining ring is positioned over
It compresses in container bottom annular groove and fixes, then big permeable stone, cutting ring are put into retaining ring.
The simulation soil body above-mentioned bears the lower drying and watering cycle breathing test method of load effect, and in step C, lead ring is placed in ring
On knife, so that cutting ring mouth is caught in lead ring lower recess fixed, then small permeable stone is placed in lead ring again and is contacted with sample top surface.
The simulation soil body above-mentioned bears the lower drying and watering cycle breathing test method of load effect, and in step D, load bar is arranged
Meanwhile 1 piece of thermal insulation board is set above load bar；In step E, 1 piece of heat-insulated wooden unit is set in loading bolt top surface, then by hundred
Table bottom measurement head is divided to withstand on heat-insulated wooden unit.
The simulation soil body above-mentioned bears the lower drying and watering cycle breathing test method of load effect, and in step D, loading bolt is worn
After crossing load bar middle part threaded hole, loading bolt bottom hemispheric tip is made to be contacted with pressure transmission plate top surface spherical groove.
A kind of simulation soil body bears the lower drying and watering cycle breathing experimental rig of load effect, includes compression container, compression is held
Bottom is placed with big permeable stone in device, is provided on big permeable stone and is inserted in sample in cutting ring, and sample is equipped with small permeable stone, small
It is provided with pressure transmission plate on water stone, load bar is provided with above pressure transmission plate, two head end of load bar is connect through montant with consolidation apparatus, load
Shank of bolt, which was worn, to be contacted at the top of its bottom and pressure transmission plate after load bar, and loading bolt top surface connects with dial gauge bottom measurement head
It touches, dial gauge is fixed in dial gauge fixed link, and the dial gauge fixed link other end is connect with upright bar, and bottom of upright rod is fixed on compression
On container.
The simulation soil body above-mentioned bears the lower drying and watering cycle breathing experimental rig of load effect, the compression container bottom setting
There is annular groove, retaining ring has been put into annular groove, big permeable stone and cutting ring have been put into retaining ring.
The simulation soil body above-mentioned bears the lower drying and watering cycle breathing experimental rig of load effect, and lead ring is caught at the top of the cutting ring
Small permeable stone and pressure transmission plate have been put into lower recess, in lead ring.
The simulation soil body above-mentioned bears the lower drying and watering cycle breathing experimental rig of load effect, is provided with above the load bar
Thermal insulation board is provided with heat-insulated wooden unit on loading bolt top surface, and dial gauge bottom measurement head is put on heat-insulated wooden unit.
The simulation soil body above-mentioned bears the lower drying and watering cycle breathing experimental rig of load effect, and the pressure transmission plate top surface is provided with
Spherical groove, loading bolt bottom stretch in spherical groove, and the fixed sea whelk of 1 piece of balance is provided with above load bar, loads spiral shell
Bolt contacts after passing through the fixed sea whelk of balance and load bar with pressure transmission plate.
Beneficial effects of the present invention：Compared with prior art, experimental rig of the invention and method are in entire drying and watering cycle
It is not required to unload sample in the process, avoids the disturbance to sample, different original states need to only be tried before formal development experiment
Alcohol burn time T that sample is dried to the moisture content state of test requirements document from water swelling stable state carries out pre- preceding measurement i.e.
It can.Simultaneously test the device material used it is simple, it is easy to operate, simulation load action under sample drying and watering cycle process stressing conditions
It is practical closer to engineering, easy to grasp, be convenient for promoting.
Description of the drawings
Attached Fig. 1 the structural representation of present invention；
Attached drawing 2 is the side structure schematic diagram of attached drawing 1；
Fig. 3 is the test result of the lower 5 drying and watering cycle breathing experiment of admaic earth sample load action in the embodiment of the present invention
Schematic diagram.
Reference numeral：1- compresses container, 2- retaining rings, 3- cutting rings, the big permeable stones of 4-, the small permeable stones of 5-, 6- lead rings, 7- pressure transmissions
Plate, 8- upright bars, 9- dial gauge fixed links, 10- dial gauges, 11- loading bolts, 12- load bars, 13- thermal insulation boards, the heat-insulated wood of 14-
Block, 15- samples, 16- montants, the fixed sea whelk of 17- balances.
Specific implementation mode
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
The embodiment of the present invention：A kind of simulation soil body bears the lower drying and watering cycle breathing test method of load effect, the experiment
Method includes following steps：
A, upright bar is fixedly connected with compression container floor, and big permeable stone is positioned over compression container bottom；
B, required initial aqueous rate and compactness cutting ring sample are made according to testing program, together together with cutting ring by sample
It is placed on big permeable stone, and cutting ring mouth is upward；
C, small permeable stone is placed in sample top surface, and pressure transmission plate is placed on small permeable stone, weigh the quality of whole device,
It is denoted as M；
D, load bar is set above pressure transmission plate, load bar both ends are connect with consolidation apparatus by montant, loading bolt is worn
Threaded hole in the middle part of load bar is crossed, loading bolt bottom is made to be contacted with pressure transmission plate top surface；
E, dial gauge is fixedly mounted in dial gauge fixed link one end, and the other end is fixedly connected with upright bar, and makes dial gauge bottom
Measurement head is withstood on loading bolt top surface, to measure sample vertical deformation；
F, consolidation apparatus bottom end is loaded into lever regulating horizontal by adjusting loading bolt, percentage meter reading is zeroed, solid
It ties and increases counterweight on instrument to sample load, until sample consolidation deformation is stablized, read percentage meter reading；
G, after stabilization by consolidation, the water filling into compression container, the water surface is no more than sample top surface, records percentage at regular intervals
Meter reading, until percentage meter reading tends towards stability, the difference read after dial gauge final reading and stabilization by consolidation is the swollen of sample
Bulk；
H, after expansion is stablized, excessive moisture in compression container is extracted out, is absorbed residual moisture in container with filter paper, to pressure
Alcohol is added in capacity reducing device, lights alcohol to sample heating, drying, and record alcohol burn drying time t and percentage meter reading,
One cycle is then completed to heating, drying to desired moisture content state, the difference that percentage meter reading and expansion are read after stablizing at this time
The as shrinkage of sample, repeatedly, it can be achieved that repeatedly recycling；
J, sample is such as measured by water swelling to be stablized to the time T for being dried to initial aqueous rate state, when passing through drying
Between weigh total quality m after t, the difference of total quality m using initial mass M and after the drying t times, when calculating sample drying t
Between after sample moisture content, it is final to determine the drying time T for being dried to required moisture content state after carrying out multigroup test.
In step A, retaining ring is positioned in compression container bottom annular groove and is fixed, then big permeable stone, cutting ring are put into
In retaining ring, the sample that can be fixed big permeable stone by retaining ring and be put into cutting ring avoids moving during its experiment
It is dynamic.
In step C, lead ring is placed on cutting ring, so that cutting ring mouth is caught in lead ring lower recess fixed, it then again will be small
It is contacted with sample top surface in water stone merging lead ring.Sample, small permeable stone and the pressure transmission in cutting ring can be fixed by lead ring
Plate avoids moving during its experiment.
In step D, while load bar is set, 1 piece of thermal insulation board is set above load bar；In step E, in loading bolt
1 piece of heat-insulated wooden unit is arranged in top surface, then withstands on dial gauge bottom measurement head on heat-insulated wooden unit.Due to needing to fire during experiment
Liquor essence, therefore will produce high temperature, and the high temperature can cause to damage to the dial gauge in top, therefore be provided with thermal insulation board and heat-insulated
Wooden unit is for protecting dial gauge.
In step D, after loading bolt is passed through load bar middle part threaded hole, make loading bolt bottom hemispheric tip and pressure transmission
Plate top surface spherical groove contacts, which can so that after increasing counterweight that increased pressure can pass through loading bolt top completely
Portion acts on pressure transmission plate top surface.Ensure after being pressurized to be still to contact vertically between loading bolt and pressure transmission plate.
A kind of simulation soil body bears the lower drying and watering cycle breathing experimental rig of load effect, includes pressure as shown in attached drawing 1-2
Capacity reducing device 1 compresses bottom in container 1 and is placed with big permeable stone 4, is provided on big permeable stone 4 and is inserted in sample 15 in cutting ring 3, tried
Sample 15 is equipped with small permeable stone 5, and pressure transmission plate 7 is provided on small permeable stone 5, and 7 bottom surface of pressure transmission plate is rounded, diameter and small permeable stone
5 is identical, and 7 top of pressure transmission plate is provided with load bar 12, and 12 centre position of load bar is provided with 1 threaded hole, 12 both ends of load bar
End connect through montant 16 with the load lever on consolidation apparatus, after threaded hole of 11 shaft of loading bolt on the load bar 12 afterwards its
Bottom is contacted with 7 top of pressure transmission plate, and 11 top surface of loading bolt is contacted with 10 bottom measurement head of dial gauge, and dial gauge 10 is fixed on hundred
Divide in table fixed link 9, there are circular hole and nut in 9 both ends of dial gauge fixed link, and nut, which serves, to be stepped up；Dial gauge fixed link 9 is another
One end is connect with upright bar 8, and 8 cross section of upright bar is circle, and there is screw thread in bottom end, can screw up fixation with compression 1 pedestal of container.
1 bottom of compression container is provided with annular groove, is fixed in annular groove and has been put into retaining ring 2, is put into retaining ring 2
There are big permeable stone 4 and cutting ring 3.By the sample 15 that retaining ring 2 can fix big permeable stone 4 and be put into cutting ring 3, it is avoided
It is moved during experiment.
3 top of the cutting ring is caught in 6 lower recess of lead ring, and small permeable stone 5 and pressure transmission plate 7 have been put into lead ring 6.Pass through
Lead ring 6 can fix sample 15, small permeable stone 5 and pressure transmission plate 7 in cutting ring 3, avoid moving during its experiment.
12 top of the load bar is provided with thermal insulation board 13, and loading bolt is provided with heat-insulated wooden unit 14, percentage on 11 top surface
10 bottom measurement head of table is put on heat-insulated wooden unit 14.Due to needing alcohol combustion during experiment, therefore high temperature is will produce, and the height
Temperature can cause to damage to the dial gauge 10 in top, therefore be provided with thermal insulation board 13 and heat-insulated wooden unit 14 for protecting dial gauge.
7 top surface of pressure transmission plate is small disc, and disc is provided centrally with spherical groove, and 11 bottom of loading bolt stretches to ball
In connected in star, which can make after increasing counterweight, and increased pressure can be acted on by 11 top of loading bolt completely
On 7 top surface of pressure transmission plate.Ensure after being pressurized to be still to contact vertically between loading bolt 11 and pressure transmission plate 7.12 top of load bar is set
It is equipped with the fixed sea whelk 17 of 1 piece of balance, loading bolt 11 contacts after passing through the fixed sea whelk 17 of balance and load bar 12 with pressure transmission plate 7.
Since counterweight load is on load lever, whole device is caused to shift to a side of weight after loading lever presses, due to adding
Increased pressure directly passes to pressure transmission plate by loading in lever transmission to loading bolt 11, then by loading bolt 11 after pressure
7, while device deviates also can loading bolt 11 shift, and can be to avoid loading bolt 11 by the fixed sea whelk of balance 17
It shifts.
Measurement soil sample provided by the invention carries out drying and watering cycle swell-shrinking deformation experimental rig under load, by being filled to pressure
Capacity reducing device 1, water enter sample 15 through the big permeable stone 4 in bottom, complete the water swelling process of sample 15, pass through dial gauge in experiment
10 readings determine swell increment.After the expansion of sample 15 is stablized, excessive moisture in compression container 1 is extracted out, is used in combination filter paper to blot extra
Moisture injects alcohol in compression container 1, lights alcohol and is heated to sample 15, makes 15 dehydration shrinkage of sample, alcohol burn drying
Time is the time T of measurement before experiment, and one cycle is then completed after drying time T.The device can not dismantle sample and carry out instead
Multiple drying and watering cycle breathing experiment, and then can more accurately evaluate the swell-shrink characteristics under soil sample load action during drying and watering cycle.
Compression set is made of copper material, and thermal insulation board 13 uses lightweight iron material, heat-insulated wooden unit 14 to use wooden material
Material, other objects are all made of stainless steel material making.
It is tested using the present apparatus carrying out 5 drying and watering cycle breathing under admaic earth sample load action, test result is for example attached
Shown in Fig. 3.Abscissa represents drying moistening cycle in figure, and ordinate represents breathing rate, by attached drawing 3 it is found that load is less than 50kpa
When, sample present swell-shrink characteristics repeatedly with drying and watering cycle, but no matter sample is expanded or shunk, and breathing rate is always
More than zero, sample is finally highly all higher than elemental height, illustrates that sample expands when load is smaller, and height increases.Load is big
When 100kpa, for sample when absorbing water first time, breathing rate does not increase anti-drop, is showed instead with the progress of drying and watering cycle later yet
Multiple swell-shrink characteristic, but no matter sample is expanded or is shunk, and breathing rate is respectively less than zero, and sample is shunk, and specimen height is less than initial
Highly.
By taking admaic earth as an example, basic physical index is shown in Table 1, and sample drying and watering cycle under load action is carried out by above step
Breathing experiment, for sample drying to initial aqueous rate state, drying time T is more according to multigroup test specimens before experiment after cycle every time
Secondary test is final to be determined.Experiment sample initial aqueous rate used is 24.6%, compactness 90%, load be respectively 0kpa,
50kpa, 100kpa, 200kpa carry out drying and watering cycle three times, and sample expands and shrinks the specific time and is shown in Table during drying and watering cycle
2.In cyclic process, swell increment and shrinkage under sample difference load are listed in table 3.
Table 1.
Table 2.
Table 3.
Claims (10)
1. a kind of simulation soil body bears the lower drying and watering cycle breathing test method of load effect, it is characterised in that：The test method packet
Following steps are included：
A, upright bar is fixedly connected with compression container floor, and big permeable stone is positioned over compression container bottom；
B, required initial aqueous rate and compactness cutting ring sample are made according to testing program, sample is placed in together with cutting ring one
On big permeable stone, and cutting ring mouth is upward；
C, small permeable stone is placed in sample top surface, and pressure transmission plate is placed on small permeable stone, weigh the quality of whole device, remembered
For M；
D, load bar is set above pressure transmission plate, load bar both ends are connect by montant with consolidation apparatus, and loading bolt is passed through and is added
Threaded hole in the middle part of bar is carried, loading bolt bottom is made to be contacted with pressure transmission plate top surface；
E, dial gauge is fixedly mounted in dial gauge fixed link one end, and the other end is fixedly connected with upright bar, and dial gauge bottom is made to measure
The crown is on loading bolt top surface；
F, consolidation apparatus bottom end is loaded into lever regulating horizontal by adjusting loading bolt, percentage meter reading is zeroed, increase counterweight
Sample is loaded, until sample consolidation deformation is stablized, reads percentage meter reading；
G, after stabilization by consolidation, the water filling into compression container records percentage meter reading at regular intervals, until percentage meter reading becomes
The difference read after stabilization, dial gauge final reading and stabilization by consolidation is the swell increment of sample；
H, after expansion is stablized, excessive moisture in compression container is extracted out, residual moisture in container is absorbed with filter paper, is held to compression
Alcohol is added in device, lights alcohol to sample heating, drying, and record alcohol burn drying time t and percentage meter reading, until adding
Heat drying then completes one cycle to desired moisture content state, and the difference that percentage meter reading and expansion are read after stablizing at this time is
The shrinkage of sample；
J, by weighing total quality m after drying time t, using initial mass M and drying the t times after total quality m difference, meter
Sample moisture content after calculating the sample drying t times, it is final to determine the baking for being dried to required moisture content state after carrying out multigroup test
Dry time T.
2. the simulation soil body according to claim 1 bears the lower drying and watering cycle breathing test method of load effect, feature exists
In：In step A, retaining ring is positioned in compression container bottom annular groove and is fixed, then big permeable stone, cutting ring are put into retaining ring
In.
3. the simulation soil body according to claim 1 bears the lower drying and watering cycle breathing test method of load effect, feature exists
In：In step C, lead ring is placed on cutting ring, so that cutting ring mouth is caught in lead ring lower recess fixed, then again sets small permeable stone
Enter in lead ring and is contacted with sample top surface.
4. the simulation soil body according to claim 1 bears the lower drying and watering cycle breathing test method of load effect, feature exists
In：In step D, while load bar is set, 1 piece of thermal insulation board is set above load bar；In step E, in loading bolt top surface
1 piece of heat-insulated wooden unit is set, then withstands on dial gauge bottom measurement head on heat-insulated wooden unit.
5. the simulation soil body according to claim 1 bears the lower drying and watering cycle breathing test method of load effect, feature exists
In：In step D, after loading bolt is passed through load bar middle part threaded hole, make loading bolt bottom hemispheric tip and pressure transmission plate top
Face spherical groove contact.
6. the simulation soil body in a kind of 1-5 such as claim as described in any one bears the lower drying and watering cycle breathing experiment of load effect
Device, it is characterised in that：It include compression container（1）, compress container（1）Interior bottom is placed with big permeable stone（4）, big permeable stone
（4）On be provided with and be inserted in cutting ring（3）In sample（15）, sample（15）It is equipped with small permeable stone（5）, small permeable stone（5）On set
It is equipped with pressure transmission plate（7）, pressure transmission plate（7）Top is provided with load bar（12）, load bar（12）Two head ends are through montant（16）With consolidation
Instrument connects, loading bolt（11）Shaft passes through load bar（12）Its bottom and pressure transmission plate afterwards（7）Top contacts, loading bolt（11）
Top surface and dial gauge（10）Bottom measurement head contact, dial gauge（10）It is fixed on dial gauge fixed link（9）On, dial gauge fixed link
（9）The other end and upright bar（8）Connection, upright bar（8）Bottom is fixed on compression container（1）On.
7. the simulation soil body according to claim 6 bears the lower drying and watering cycle breathing experimental rig of load effect, feature exists
In：The compression container（1）Bottom is provided with annular groove, and retaining ring has been put into annular groove（2）, retaining ring（2）In be put into
Big permeable stone（4）And cutting ring（3）.
8. the simulation soil body according to claim 6 bears the device of the lower drying and watering cycle breathing test method of load effect,
It is characterized in that：The cutting ring（3）Top is caught in lead ring（6）In lower recess, lead ring（6）In be put into small permeable stone（5）With
Pressure transmission plate（7）.
9. the simulation soil body according to claim 6 bears the lower drying and watering cycle breathing experimental rig of load effect, feature exists
In：The load bar（12）Top is provided with thermal insulation board（13）, loading bolt（11）Heat-insulated wooden unit is provided on top surface（14）, hundred
Divide table（10）Bottom measurement head is put in heat-insulated wooden unit（14）On.
10. the simulation soil body according to claim 6 bears the lower drying and watering cycle breathing experimental rig of load effect, feature exists
In：The pressure transmission plate（7）Top surface is provided with spherical groove, loading bolt（11）Bottom stretches in spherical groove, load bar
（12）Top is provided with the fixed sea whelk of 1 piece of balance（17）, loading bolt（11）Across the fixed sea whelk of balance（17）And load bar
（12）Afterwards with pressure transmission plate（7）Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810575587.7A CN108732036A (en) | 2018-06-06 | 2018-06-06 | The simulation soil body bears the lower drying and watering cycle breathing test method of load effect and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810575587.7A CN108732036A (en) | 2018-06-06 | 2018-06-06 | The simulation soil body bears the lower drying and watering cycle breathing test method of load effect and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108732036A true CN108732036A (en) | 2018-11-02 |
Family
ID=63932254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810575587.7A Pending CN108732036A (en) | 2018-06-06 | 2018-06-06 | The simulation soil body bears the lower drying and watering cycle breathing test method of load effect and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108732036A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580914A (en) * | 2019-01-15 | 2019-04-05 | 三峡大学 | A kind of dynamic water circulation and rock argillization process simulation device and test method under loading condition |
| CN110568003A (en) * | 2019-08-20 | 2019-12-13 | 北京交通大学 | heating and water supplementing expansion instrument |
| CN111239374A (en) * | 2020-03-25 | 2020-06-05 | 中铁二院成都勘察设计研究院有限责任公司 | Saline soil salt expansion characteristic test device |
| CN111398049A (en) * | 2020-03-24 | 2020-07-10 | 河海大学 | Device for testing bidirectional thermal shrinkage stress and frost heaving stress of frozen water-containing asphalt mixture |
| CN111679062A (en) * | 2020-07-20 | 2020-09-18 | 中南大学 | Consolidation compression instrument for testing dry-wet cycle characteristics of expansive soil |
| CN113390783A (en) * | 2021-06-24 | 2021-09-14 | 深圳市市政工程总公司 | Contraction performance detection equipment for slag soil fluidized backfill material |
| CN113390784A (en) * | 2021-06-24 | 2021-09-14 | 深圳市市政工程总公司 | Shrinkage performance detection method for slag soil fluidized backfill material |
| CN114018700A (en) * | 2021-10-26 | 2022-02-08 | 中国电力工程顾问集团华北电力设计院有限公司 | Large-scale soil-rock mixed soil sample indoor compression instrument and filling deformation and stability calculation method |
| CN115876608A (en) * | 2023-03-09 | 2023-03-31 | 成都理工大学 | Rock-soil mechanics test device and method in-situ freeze thawing-dry-wet cycle environment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5248200A (en) * | 1992-10-16 | 1993-09-28 | The United States Of America As Represented By The Secretary Of The Army | Portable asphalt stress and strain measuring device |
| CN204758406U (en) * | 2015-08-06 | 2015-11-11 | 三峡大学 | Consider rock expansion pressure test appearance of drying and watering cycle effect |
| CN105891445A (en) * | 2016-04-08 | 2016-08-24 | 河海大学 | Rock soil wetting-drying cycle test device and use method thereof |
| CN206906169U (en) * | 2017-05-31 | 2018-01-19 | 榆林学院 | The experimental rig of resistance to shear of soil relaxation and deformation under a kind of monitoring drying and watering cycle |
-
2018
- 2018-06-06 CN CN201810575587.7A patent/CN108732036A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5248200A (en) * | 1992-10-16 | 1993-09-28 | The United States Of America As Represented By The Secretary Of The Army | Portable asphalt stress and strain measuring device |
| CN204758406U (en) * | 2015-08-06 | 2015-11-11 | 三峡大学 | Consider rock expansion pressure test appearance of drying and watering cycle effect |
| CN105891445A (en) * | 2016-04-08 | 2016-08-24 | 河海大学 | Rock soil wetting-drying cycle test device and use method thereof |
| CN206906169U (en) * | 2017-05-31 | 2018-01-19 | 榆林学院 | The experimental rig of resistance to shear of soil relaxation and deformation under a kind of monitoring drying and watering cycle |
Non-Patent Citations (1)
| Title |
|---|
| 陈开圣 等: "干湿循环与荷载耦合作用下红黏土胀缩特性", 《建筑科学与工程学报》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580914B (en) * | 2019-01-15 | 2021-11-02 | 三峡大学 | Rock argillization process simulation device and test method under dynamic water circulation and load conditions |
| CN109580914A (en) * | 2019-01-15 | 2019-04-05 | 三峡大学 | A kind of dynamic water circulation and rock argillization process simulation device and test method under loading condition |
| CN110568003A (en) * | 2019-08-20 | 2019-12-13 | 北京交通大学 | heating and water supplementing expansion instrument |
| CN111398049A (en) * | 2020-03-24 | 2020-07-10 | 河海大学 | Device for testing bidirectional thermal shrinkage stress and frost heaving stress of frozen water-containing asphalt mixture |
| CN111239374B (en) * | 2020-03-25 | 2022-06-28 | 中铁二院成都勘察设计研究院有限责任公司 | Saline soil salt expansion characteristic test device |
| CN111239374A (en) * | 2020-03-25 | 2020-06-05 | 中铁二院成都勘察设计研究院有限责任公司 | Saline soil salt expansion characteristic test device |
| CN111679062A (en) * | 2020-07-20 | 2020-09-18 | 中南大学 | Consolidation compression instrument for testing dry-wet cycle characteristics of expansive soil |
| CN113390783A (en) * | 2021-06-24 | 2021-09-14 | 深圳市市政工程总公司 | Contraction performance detection equipment for slag soil fluidized backfill material |
| CN113390784A (en) * | 2021-06-24 | 2021-09-14 | 深圳市市政工程总公司 | Shrinkage performance detection method for slag soil fluidized backfill material |
| CN113390784B (en) * | 2021-06-24 | 2023-08-18 | 深圳市市政工程总公司 | Method for detecting shrinkage performance of slag soil fluidization backfill material |
| CN114018700A (en) * | 2021-10-26 | 2022-02-08 | 中国电力工程顾问集团华北电力设计院有限公司 | Large-scale soil-rock mixed soil sample indoor compression instrument and filling deformation and stability calculation method |
| CN115876608A (en) * | 2023-03-09 | 2023-03-31 | 成都理工大学 | Rock-soil mechanics test device and method in-situ freeze thawing-dry-wet cycle environment |
| CN115876608B (en) * | 2023-03-09 | 2023-05-16 | 成都理工大学 | Rock-soil mechanical test equipment and method in-situ freeze thawing-dry-wet circulating environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108732036A (en) | The simulation soil body bears the lower drying and watering cycle breathing test method of load effect and device | |
| CN103267682B (en) | The proving installation of material creep and method of testing under tension and environment coupled action | |
| CN107687973A (en) | Utilize the method for the Hopkinson pressure bar test rock material dynamic point density of load | |
| CN103411806B (en) | The method of operating of the unidirectional direct tensile test of a kind of cohesive soil and specialized equipment thereof | |
| CN109100225A (en) | The wetting-drying circular tester that soil body three-dimensional is soaked under a kind of load action | |
| CN105891445A (en) | Rock soil wetting-drying cycle test device and use method thereof | |
| CN107064474A (en) | A kind of swollen characteristic test apparatus of the salt of salinized soil | |
| WO2020252989A1 (en) | Method for simulating equivalent on-site soft coal in laboratory | |
| CN107271314A (en) | A kind of method for measuring coal petrography adsorption swelling coefficient | |
| CN110361312A (en) | The determination method of permeability and porosity relationship during rock seepage liquefaction | |
| CN110044809A (en) | A kind of concrete durability test device and its test method | |
| CN104374642A (en) | Testing method for measuring tensile strength of rock by multiple times of splitting | |
| CN107941268A (en) | A kind of method that concrete sample humiture is measured under constant shaft press loading effect | |
| Mindeguia et al. | Influence of water content on gas pore pressure in concretes at high temperature | |
| CN109406758B (en) | Tester for three-dimensional water absorption expansion rate and expansion force of expansive soil | |
| CN103245561B (en) | Asphalt mixture static modulus testing method | |
| CN205941210U (en) | Quiet power pressurized elastic modulus apparatus of concrete | |
| CN107283574B (en) | A kind of Logs drying method and its equipment | |
| CN110082223A (en) | A kind of Split-tension of Rolled loading device for concrete durability experiment | |
| CN204405431U (en) | A kind of soft soil consolidation instrument | |
| CN214794131U (en) | Indoor modulus of resilience measuring device of vapour-pressure type | |
| Schueremans et al. | Triaxial testing of masonry and lime mortars, test setup and first results | |
| CN207976342U (en) | A kind of large-scale uniaxial confined compression experiment instrument | |
| CN112697611B (en) | Pile-soil interface shear strength test device considering soil body expansion and contraction behaviors and method thereof | |
| Weerheijm et al. | Research developments and experimental data on dynamic concrete behaviour |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181102 |