CN209570536U - A kind of device for testing frozen soil freezing-thawing test - Google Patents
A kind of device for testing frozen soil freezing-thawing test Download PDFInfo
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- CN209570536U CN209570536U CN201920088896.1U CN201920088896U CN209570536U CN 209570536 U CN209570536 U CN 209570536U CN 201920088896 U CN201920088896 U CN 201920088896U CN 209570536 U CN209570536 U CN 209570536U
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- 238000012360 testing method Methods 0.000 title claims abstract description 58
- 239000002689 soil Substances 0.000 title claims abstract description 49
- 238000010257 thawing Methods 0.000 title claims abstract description 21
- 150000003839 salts Chemical class 0.000 claims description 13
- 230000001932 seasonal effect Effects 0.000 claims description 8
- 239000004065 semiconductor Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000000052 comparative effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005945 translocation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
The utility model discloses a kind of devices for testing frozen soil freezing-thawing test, including sample slot and driving motor, the sample slot includes cuboid sample slot outer wall, side inner wall before and after sample slot, the detachable inner wall in sample slot center, sample slot left and right sides inner wall and sample slot bottom seat, the sample slot base bottom is equipped with electric up-down support frame, electric up-down support frame wire through-hole and electric up-down support bracket switch are provided in the cuboid sample slot outer wall, removable slide plate is fixedly connected at the top of the electric up-down support frame, the utility model relates to geotechnical testament field of measuring technique.The device of the test frozen soil freezing-thawing test, it not only solves traditional measurement and destroys the problem of soil body itself be easy to cause measurement error in the soil body hole that spuds in, and test flume internal volume can be adjusted according to specimen size, also two groups or multiple groups comparative test can be done simultaneously in frozen soil freezing-thawing test, also improves test efficiency while improving test precision.
Description
Technical field
The utility model relates to geotechnical testament field of measuring technique, specially a kind of device for testing frozen soil freezing-thawing test.
Background technique
According to statistics, there are frozen soil for Global land area 70%, wherein 14% is permafrost, 56% is seasonal frozen ground；I
State is third frozen soil big country in the world, and wherein permafrost distribution area is 2.068 × 106km2, account for China's national territorial area
21.5%, frost zone distribution area is very wide, is 5.137 × 106km2, the 53.5% of China's national territorial area is accounted for, the two is total
Accounting for about 3/4 or so of national total area, roadbed damage in permafrost regions is mainly that temperature change causes caused by subgrade soils multigelation,
And the freeze thawing of soil is an extremely complex process, it is main to include with physics, chemistry and Mechanics Phenomenon and subprocess
Temperature change, water translocation, salt accumulation etc..
Sensing device is placed in the soil body using hole is spudded in the soil body by traditional frozen soil freezing-thawing test test method
In measure, not only monitoring time is long, but also the temperature moisture salinity of the soil body can be also lost with hole, to cause certain
The error of degree, and test equipment is determined unadjustable with specimen size, is frozen therefore, it is necessary to design a kind of novel test
The device of native freezing-thawing test.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of device for testing frozen soil freezing-thawing test, solves
The temperature moisture salinity of the traditional measurement test soil body be easy to cause measurement error, specimen size uncontrollable with hole loss
Problem.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of test frozen soil freeze thawing examination
The device tested, including sample slot and driving motor, the sample slot include before and after cuboid sample slot outer wall, sample slot in side
Wall, the detachable inner wall in sample slot center, sample slot left and right sides inner wall and sample slot bottom seat, the sample slot base bottom are equipped with
Electric up-down support frame is provided with electric up-down support frame wire through-hole and electric up-down branch in the cuboid sample slot outer wall
Support switch, the electric up-down support frame top are fixedly connected with removable slide plate, side inner wall, sample before and after the sample slot
The detachable inner wall in slot center and sample slot left and right sides inner wall are located above removable slide plate, are placed on the removable slide plate more
Year frozen soil sample and seasonal frozen ground sample, the seasonal frozen ground sample are located above ever-frozen ground sample, the sample slot front and back
Central detachable inner wall channel is provided in the middle part of the inner wall of side, the detachable inner wall in sample slot center passes through the detachable inner wall in center
Channel perforation sample slot front and back side inner wall simultaneously extends to outside, before and after the central detachable inner wall of the sample slot, sample slot in side
Wall and sample slot left and right sides inner wall are internally provided with soil moisture moisture salt sub-sensor.
Preferably, the driving motor is located inside sample slot, and the driving motor output shaft is equipped with electric telescopic rod,
The one end of the electric telescopic rod far from driving motor is connect with side inner wall before and after sample slot and sample slot left and right sides inner wall respectively.
Preferably, the detachable inner wall channel two sides in the center are provided with left and right sides inner wall channel, and left and right sides inner wall is logical
Road is uniformly distributed, and the detachable inner wall channel in center is provided with what size therewith matched with left and right sides inner wall channel inside
Filling block, the filling block are set as detachable.
Preferably, before and after the detachable inner wall in the sample slot center, sample slot in side inner wall and sample slot left and right sides inner wall
Portion offers sensor fixed card slot, and the sensor fixed card slot is uniformly arranged, on the inside of the sensor fixed card slot and native
Earth temperature moisture salinity sensor is fixedly connected.
Preferably, the bottom of the ever-frozen ground sample and the position of surrounding are placed with semiconductor chilling plate.
Preferably, the top of the sample slot is equipped with infrared distance sensor.
(3) beneficial effect
The utility model provides a kind of device for testing frozen soil freezing-thawing test.Have it is following the utility model has the advantages that
(1), the utility model can be according to the height and sample slot of the size adjusting sample slot of test requirements document sample inside
Volume can be suitably used for the sample of various sizes, avoids the occurrence of and causes to test the case where progress has some setbacks because sample slot prepares deficiency,
Test efficiency is improved, test flume dosage is saved.
(2), inside can be divided two or more sets sample spaces by adjusting sample slot inner wall by the utility model, can be with
Two or more sets comparative tests are carried out simultaneously, improve the precision and test efficiency of test data.
(3), the utility model is placed in sample slot inner wall using by non-insertion soil moisture moisture salt sub-sensor,
Sensor is mobile with inner wall, and the warm and humid salt conduction in measurement soil sample surface, not only avoiding traditional measurement when placing need to be in experiment opening
Hole, it is thus also avoided that generate error because hole excavates temperature moisture salinity losses, improve the precision of test data.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model sample slot；
Fig. 2 is that the utility model sample slot inner wall puts schematic diagram；
Fig. 3 is the utility model sample slot left and right sides inner wall and center detachable inner wall insertion front and back side inner wall schematic diagram；
Fig. 4 is top view after the utility model sample slot inner wall is adjusted；
Fig. 5 is access diagram in the inner wall of the utility model sample slot front and back side；
Fig. 6 is side inner wall structure diagram before and after the utility model sample slot；
Fig. 7 is the utility model sample slot left and right sides inner wall structure diagram.
In figure: 1 cuboid sample slot outer wall, 2 sample slot bottom seats, 3 electric up-down support frames, 4 electric up-down support frames are led
Side inner wall, 9 before and after line three-way hole, 5 electric up-downs support bracket switch, 6 removable slide plates, 7 sample slot left and right sides inner walls, 8 sample slots
Left and right inner wall channel, 10 electric telescopic rods, 11 driving motors, 12 seasonal frozen ground samples, 13 ever-frozen ground samples, 14 semiconductor systems
Cold, 15 sensor fixed card slots, 16 soil moisture moisture salt sub-sensors, 17 infrared distance sensors, 18 sample slot centers
Detachable inner wall, the detachable inner wall channel in 19 centers.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-7 is please referred to, the utility model provides a kind of technical solution: a kind of device for testing frozen soil freezing-thawing test, packet
Sample slot and driving motor 11 are included, sample slot includes side inner wall 8, sample slot center before and after cuboid sample slot outer wall 1, sample slot
Detachable inner wall 18, sample slot left and right sides inner wall 7 and sample slot bottom seat 2,2 bottom of sample slot bottom seat are equipped with electric up-down support
Frame 3 is provided with electric up-down support frame wire through-hole 4 and electric up-down support bracket switch 5, electricity in cuboid sample slot outer wall 1
Removable slide plate 6 is fixedly connected at the top of dynamic lifting support frame 3, side inner wall 8, the detachable inner wall in sample slot center before and after sample slot
18 and sample slot left and right sides inner wall 7 be located at removable 6 top of slide plate, be placed with 13 He of ever-frozen ground sample on removable slide plate 6
Seasonal frozen ground sample 12, seasonal frozen ground sample 12 are located at 13 top of ever-frozen ground sample, are arranged in the middle part of side inner wall 8 before and after sample slot
There is central detachable inner wall channel 19, the detachable inner wall 18 in sample slot center is penetrated through by the detachable inner wall channel 19 in center
Sample slot front and back side inner wall 8 simultaneously extends to outside, side inner wall 8 and sample before and after the detachable inner wall 18 in sample slot center, sample slot
Slot left and right sides inner wall 7 is internally provided with soil moisture moisture salt sub-sensor 16.
Driving motor 11 is located inside sample slot, and 11 output shaft of driving motor is equipped with electric telescopic rod 10, electric expansion
The one end of bar 10 far from driving motor 11 is connect with side inner wall 8 before and after sample slot and sample slot left and right sides inner wall 7 respectively.
Central detachable 19 two sides of inner wall channel are provided with left and right sides inner wall channel 9, and left and right sides inner wall channel 9 is uniformly divided
Cloth is provided with the filling block that size therewith matches on the inside of the detachable inner wall channel 19 in center and left and right sides inner wall channel 9, fills out
It fills block and is set as detachable.
It is offered inside side inner wall 8 and sample slot left and right sides inner wall 7 before and after the detachable inner wall 18 in sample slot center, sample slot
Sensor fixed card slot 15, sensor fixed card slot 15 are uniformly arranged, 15 inside of sensor fixed card slot and soil moisture moisture
Salt sub-sensor 16 is fixedly connected.
The bottom of ever-frozen ground sample 13 and the position of surrounding are placed with semiconductor chilling plate 14.
The top of sample slot is equipped with infrared distance sensor 17.
It is a kind of test frozen soil freezing-thawing test device use steps are as follows:
(1) it adjusts the height of removable slide plate: determining the adjusting height of removable slide plate 6, driving electricity according to soil sample height
Dynamic lifting support frame 3 adjusts the height of removable slide plate 6, and moving distance is measured by infrared distance sensor 17 and determined；Setting
The purpose of removable slide plate 6 is that the height of removable slide plate 6 is adjusted by electric up-down support frame 3, is suitable for testing different height
The sample of degree；After adjusting removable slide plate 6, the detachable inner wall 18 in installation sample slot center, then driving motor 11 drive examination
Side inner wall 8 moves on removable slide plate 6 before and after sample slot left and right sides inner wall 7 and sample slot, surrounds different volume sizes, is applicable in
In various sizes of sample, guarantee test precision.
(2) the detachable inner wall in installation sample slot center: the detachable inner wall 18 in test flume center is mounted on removable slide plate 6 most
Center, it is parallel with sample slot left and right sides inner wall 7, and also detachable 18 or so the two sides of inner wall in test flume center is all uniformly mounted with soil
Earth temperature moisture salinity sensor 16, for measuring specimen surface temperature, moisture, salinity；The detachable inner wall 18 in test flume center
Effect be by the volume piecemeal that side inner wall 8 surrounds before and after sample slot left and right sides inner wall 7 and sample slot, a test flume center can
Volume is segmented into two parts by disassembly inner wall 18, be can be used for two soil samples while being compared test, if increasing test flume center
Volume can be divided into multi-section point by detachable 18 quantity of inner wall.
(3) adjusting sample slot left and right sides inner wall: driving motor 11 drives electric telescopic rod 10 is flexible to complete sample slot or so
The movement of side inner wall 7, position are determined that specific moving distance is measured by infrared distance sensor 17 and determined by specimen size, examination
Sample slot left and right sides inner wall 7 is uniformly equipped with soil moisture moisture salt sub-sensor 16, for measure specimen surface temperature, moisture,
Salinity.
(4) side inner wall before and after adjusting sample slot: there are multiple groups or so inner wall channel 9 and center on side inner wall 8 before and after sample slot
Detachable inner wall channel 19, the detachable inner wall channel 19 in center are located at the centre of side inner wall 8 before and after sample slot, and left and right inner wall is logical
Road 9 is uniformly distributed in central detachable 19 two sides of inner wall channel, and all channels filling block containing corresponding size is therewith one by one
Corresponding, filling block can take out or place at any time.According to the detachable inner wall 18 of sample slot left and right sides inner wall 7 and sample slot center
Take out the filler in inner wall 8 corresponding position channel in side before and after sample slot in fixed position.
Driving motor 11 drives electric telescopic rod 10 is flexible to keep side inner wall 8 before and after sample slot mobile, completes five pieces of inside panels
Close up to form sample grid, the mobile position of side inner wall 8 is determined that specific moving distance is by red by specimen size before and after sample slot
The outer measurement of distance measuring sensor 17 determines that side inner wall 8 is uniformly equipped with soil moisture moisture salt sub-sensor 16 before and after sample slot, uses
In measurement specimen surface temperature, moisture, salinity.
(5) sample preparation: the frozen soil sample for being derived from scene is placed in sample grid, first fills ever-frozen ground sample 13, for many years
Semiconductor chilling plate 14 is arranged at 13 bottom of frozen soil sample, adjusts semiconductor chilling plate 14 to lowest temperature and freezes 12h or more, refills and put season
Frozen soil sample 12 is saved, sample slot is finally put into simulation frozen soil Environmental variations in environmental chamber.
(6) test result measures: soil moisture moisture salt sub-sensor 16 is fixed on side inner wall 8, sample before and after sample slot
It, can be with measuring frozen freeze thawing in the sensor fixed card slot 15 of the detachable inner wall 18 in slot center and sample slot left and right sides inner wall 7
The variation of soil sample surface temperature, water translocation, salt accumulation situation in journey.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element ".
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understand do not depart from the principles of the present invention and spirit in the case where can to these embodiments carry out it is a variety of variation, modification,
Replacement and variant, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of device for testing frozen soil freezing-thawing test, including sample slot and driving motor (11), it is characterised in that: the sample
Slot includes side inner wall (8), sample slot center detachable inner wall (18), sample slot before and after cuboid sample slot outer wall (1), sample slot
Left and right sides inner wall (7) and sample slot bottom seat (2), sample slot bottom seat (2) bottom are equipped with electric up-down support frame (3), institute
It states and is provided with electric up-down support frame wire through-hole (4) and electric up-down support bracket switch in cuboid sample slot outer wall (1)
(5), it is fixedly connected with removable slide plate (6) at the top of the electric up-down support frame (3), the sample slot front and back side inner wall (8),
The detachable inner wall (18) in sample slot center and sample slot left and right sides inner wall (7) are located above removable slide plate (6), described removable
Ever-frozen ground sample (13) and seasonal frozen ground sample (12) are placed on slide plate (6), the seasonal frozen ground sample (12) is located at more
Above year frozen soil sample (13), central detachably inner wall channel (19), institute are provided with before and after the sample slot in the middle part of side inner wall (8)
It states the central detachably inner wall (18) of sample slot and passes through detachable inner wall channel (19) the perforation sample slot front and back side inner wall (8) in center simultaneously
Extend to outside, side inner wall (8) and sample slot left and right sides inner wall before and after the central detachable inner wall (18) of the sample slot, sample slot
(7) it is internally provided with soil moisture moisture salt sub-sensor (16).
2. a kind of device for testing frozen soil freezing-thawing test according to claim 1, it is characterised in that: the driving motor
(11) it is located inside sample slot, driving motor (11) output shaft is equipped with electric telescopic rod (10), the electric telescopic rod
(10) one end far from driving motor (11) is connect with side inner wall (8) before and after sample slot and sample slot left and right sides inner wall (7) respectively.
3. a kind of device for testing frozen soil freezing-thawing test according to claim 1, it is characterised in that: the center is detachable
Inner wall channel (19) two sides are provided with left and right sides inner wall channel (9), and left and right sides inner wall channel (9) is uniformly distributed, the center
It is provided with the filling block that size therewith matches on the inside of detachable inner wall channel (19) and left and right sides inner wall channel (9), it is described
Filling block is set as detachable.
4. a kind of device for testing frozen soil freezing-thawing test according to claim 1, it is characterised in that: the sample slot center
Sensor fixing card is offered inside side inner wall (8) and sample slot left and right sides inner wall (7) before and after detachable inner wall (18), sample slot
Slot (15), the sensor fixed card slot (15) are uniformly arranged, sensor fixed card slot (15) inside and soil moisture water
Salt sub-sensor (16) are divided to be fixedly connected.
5. a kind of device for testing frozen soil freezing-thawing test according to claim 1, it is characterised in that: the ever-frozen ground examination
The bottom of sample (13) and the position of surrounding are placed with semiconductor chilling plate (14).
6. a kind of device for testing frozen soil freezing-thawing test according to claim 1, it is characterised in that: the top of the sample slot
End is equipped with infrared distance sensor (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920088896.1U CN209570536U (en) | 2019-01-18 | 2019-01-18 | A kind of device for testing frozen soil freezing-thawing test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920088896.1U CN209570536U (en) | 2019-01-18 | 2019-01-18 | A kind of device for testing frozen soil freezing-thawing test |
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| Publication Number | Publication Date |
|---|---|
| CN209570536U true CN209570536U (en) | 2019-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920088896.1U Expired - Fee Related CN209570536U (en) | 2019-01-18 | 2019-01-18 | A kind of device for testing frozen soil freezing-thawing test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209570536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447639A (en) * | 2021-06-24 | 2021-09-28 | 中山大学 | Frozen soil freeze-thaw cycle process simulation device |
-
2019
- 2019-01-18 CN CN201920088896.1U patent/CN209570536U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447639A (en) * | 2021-06-24 | 2021-09-28 | 中山大学 | Frozen soil freeze-thaw cycle process simulation device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191101 |