CN217212368U - Soil sample frozen body becomes measuring device - Google Patents
Soil sample frozen body becomes measuring device Download PDFInfo
- Publication number
- CN217212368U CN217212368U CN202220229839.2U CN202220229839U CN217212368U CN 217212368 U CN217212368 U CN 217212368U CN 202220229839 U CN202220229839 U CN 202220229839U CN 217212368 U CN217212368 U CN 217212368U
- Authority
- CN
- China
- Prior art keywords
- measuring
- bottle
- soil sample
- measuring bottle
- top cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a soil sample freezes body and becomes measuring device, including surveying buret, measuring flask, sealing washer and top cap. The bottleneck of measuring bottle has concave part, places the sealing washer at concave part, and when the tight measuring bottle bottleneck of top cap lid, the sealing washer will play sealed effect. The bottle was measured to be full of hydrophobic fluid. The measuring tube is communicated with the side wall of the lower part of the measuring bottle and is marked with scales. Before the experiment, the soil sample is put into a measuring bottle and sealed; the measuring flask with the soil sample therein was then placed in a freezer and held for 24 hours. After freezing is finished, if the volume of the soil sample expands, the liquid level in the measuring tube rises; otherwise, it is decreased. The volume change of the liquid discharged inside the measuring pipe represents the freezing deformation of the soil sample. The utility model provides a pair of soil sample freezes body and becomes measuring device can measure the soil sample volume deformation of freezing the in-process, and measurement accuracy is high, and measuring step is simple.
Description
Technical Field
The utility model relates to a frozen soil mechanics technical field especially relates to a soil sample freezes body and becomes measuring device.
Background
The frozen soil is a soil rock which is lower than zero centigrade and contains ice, and can be divided into three types of instant frozen soil, seasonal frozen soil and permafrost soil according to the duration of a frozen state. A large number of engineering practices and research results at home and abroad show that the frost heaving effect is the main cause of the frost damage of various projects in seasonal frozen soil regions. On one hand, frost heaving of frozen soil can reduce the use quality of projects such as railways and highways and the service life of the projects, on the other hand, roadbed deformation can be caused, the safe operation of a route is seriously influenced, and huge loss is brought. The temperature of the end face of the earth pillar changes periodically, so that a freeze-thaw interface in the earth pillar oscillates, and freeze-thaw of earth layers in a certain section in the earth pillar is alternated. As a macroscopic expression of freeze-thaw interface oscillation and water phase change of the air gaps in the soil, freezing expansion and melting sinking deformation occur in the soil sample. The basic characteristic value of frost heaving deformation of a soil sample is the frost heaving amount. At present, the test standard which can be referred to by a soil sample frost heaving amount measurement test is issued by the national market supervision and management headquarter, the living quarters of the people's republic of China and the Ministry of urban and rural construction 2019-05-24 in a combined manner, and the ' soil test method standard ' (GB/T50123) implemented by 2019-10-01 begins.
In the standard of geotechnical test method, the instrument for measuring the frost heaving amount comprises an experiment box, a freezing box, a temperature control system, a temperature monitoring system, a water replenishing system, a deformation monitoring system dial indicator or a displacement sensor and a pressurizing system, and the whole set of device is complex. During the experiment, a sample box containing a sample is placed in a freezing box, a thermistor thermometer is inserted into the periphery of the sample, the top plate and the bottom plate, the top plate, the bottom plate cold liquid circulation pipeline and the bottom plate water replenishing pipeline are connected, water is supplied, bubbles in the bottom plate are removed, and the water level of a water supply device is adjusted. And opening the freezing box, the sample top plate and the bottom plate for cold bath, setting the temperature of the cold bath in the freezing box, and monitoring the temperature and the deformation of the sample. And starting the test after the initial temperature of the sample uniformly reaches a certain temperature. And adjusting the temperature of the top plate to quickly freeze the sample from the top surface, then adjusting the temperature of the top plate to the required negative temperature to uniformly lower the temperature of the soil body, keeping the temperature of the box and the temperature of the bottom plate, recording the initial water level, recording the water level, the temperature and the deformation for 1 time every 1 hour, and continuing the test for 72 hours. The measurement process is tedious, the requirement on experimental operation is high, and the efficiency is low. At present, a laboratory also utilizes a thickness gauge to measure the frost heaving quantity of a soil body, and the device limits the soil body of a ring cutter sample and reflects the frost heaving quantity of the soil body through the change of the height of the sample before and after frost heaving. The whole set of experiment device is complicated, and the measurement process is loaded down with trivial details, can lead to the soil body to melt and then influence the accuracy of experimental result because the reading time overlength.
SUMMERY OF THE UTILITY MODEL
The utility model provides a soil sample freezes body and becomes measuring device solves the soil sample among the frozen soil mechanics and freezes the measurement problem of volume deflection.
In order to achieve the purpose, the utility model adopts the following technical scheme.
A soil sample frozen body deformation measuring device comprises a measuring tube, a measuring bottle, a sealing ring and a top cover;
the top cover is detachably matched with the bottle mouth of the measuring bottle, the bottle mouth of the measuring bottle is provided with a groove part, a sealing ring is arranged in the groove part, and when the top cover is matched with the bottle mouth of the measuring bottle, the sealing ring is tightly attached to the side wall of the top cover;
the measuring bottle has a hydrophobic fluid therein; the measuring tube is an L-shaped tube, and one end of the measuring tube penetrates through the side wall of the measuring bottle and is communicated with the hydrophobic fluid in the measuring bottle; the height of the other end of the measuring tube is larger than that of the bottle mouth of the measuring bottle; the side wall of the measuring tube is provided with scales; when the soil sample is put into the hydrophobic fluid in the measuring bottle, the position of the liquid level of the hydrophobic fluid can be changed, so that the liquid level of the hydrophobic fluid moves in a section with scales on the side of the measuring pipe extending into the measuring bottle.
Preferably, the measuring flask is of a vertical structure; the L-shaped measuring tube comprises a vertical part and a horizontal part which are connected with each other, the horizontal part extends into the measuring bottle through one end of the horizontal part to be communicated with the hydrophobic fluid, and the scale is arranged on the side walls of the horizontal part and the vertical part.
Preferably, the horizontal part penetrates through the side wall of the bottom of the measuring bottle through one end of the horizontal part to be communicated with hydrophobic fluid in the measuring bottle.
Preferably, the hydrophobic fluid is a gallium-based liquid alloy.
Preferably, the top cover and the measuring bottle are mutually matched through bolts; the top cover comprises a top part and a bottom part, the diameter of the top part is larger than that of the bottom part, and the bottom part of the top cover extends into the measuring bottle; the groove is positioned on the inner side wall of the bottle mouth of the measuring bottle, and the sealing ring in the groove is tightly attached to the bottom of the top cover; the outer side wall of the bottle mouth of the measuring bottle is provided with a bolt hole, and the top edge of the top cover is provided with a through hole corresponding to the bolt hole.
By the foregoing the utility model provides a technical scheme can find out, the utility model provides a soil sample freezes body and becomes measuring device, including surveying buret, measuring flask, sealing washer and top cap. The bottleneck of measuring bottle has concave part, places the sealing washer at concave part, and when the tight measuring bottle bottleneck of top cap lid, the sealing washer will play sealed effect. The bottle was measured to be full of hydrophobic fluid. The measuring tube is communicated with the side wall of the lower part of the measuring bottle and is marked with scales. Before the experiment, the soil sample is put into a measuring bottle and sealed; the measuring flask with the soil sample therein was then placed in a freezer and held for 24 hours. After freezing is finished, if the volume of the soil sample expands, the liquid level in the measuring tube rises; otherwise, it is decreased. The volume change of the liquid discharged inside the measuring pipe represents the freezing deformation of the soil sample. The utility model provides a pair of soil sample freezes body and becomes measuring device can measure the soil sample volume deformation of freezing the in-process, and measurement accuracy is high, and measuring step is simple.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of the whole soil sample frozen body deformation measuring device provided by the present invention;
fig. 2 is a cross-sectional view of a measuring bottle of the soil sample frozen body deformation measuring device provided by the utility model;
fig. 3 is a top view of a measuring bottle of the soil sample frozen body deformation measuring device provided by the utility model;
fig. 4 is a front view of a top cover of the soil sample frozen body deformation measuring device provided by the present invention;
fig. 5 is the utility model provides a top view of soil sample frozen body becomes measuring device's top cap.
In the figure:
1. the measuring tube 11, the horizontal part 12, the vertical part 2, the measuring bottle 21, the groove part 22, the bolt hole 3, the sealing ring 4, the top cover 41, the top part 42 and the bottom part 43 are provided with through holes.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In order to facilitate understanding of the embodiments of the present invention, the following description will be given by taking specific embodiments as examples with reference to the accompanying drawings.
The utility model provides a soil sample freezes body and becomes measuring device can be used to materials such as the precision measurement soil body or concrete and warp at the volume of cooling process to and be used for the frost heaving of the soil body or freeze the shrinkage deformation measurement, the frost heaving of sulphate salinized soil cooling in-process salt deformation measurement, concrete or freeze the shrinkage deformation measurement.
Referring to fig. 1-5, a soil sample freezing deformation measuring device comprises a measuring tube 1, a measuring bottle 2, a sealing ring 3 and a top cover 4.
In the embodiment provided by the present invention, the measuring flask 2 has a hydrophobic fluid therein. Survey buret 1 and be L type pipe, survey buret 1 and run through the one end of self 2 lateral walls of measuring bottle and stretch into measuring bottle 2 in, the hydrophobic fluid in the intercommunication measuring bottle 2. The height of the other end (top end) of the measuring tube 1 is larger than that of the bottle mouth of the measuring bottle 2, and the measuring tube is used for preventing hydrophobic fluid in the measuring bottle 2 from flowing out of the top end of the measuring tube 1. The measuring tube 1 has graduations on its side walls, and the level of the hydrophobic fluid is located in the graduated section of the measuring tube 1. When a soil sample is put into the hydrophobic fluid in the measuring bottle 2, the position of the liquid level of the hydrophobic fluid can be changed, so that the liquid level of the hydrophobic fluid moves in a section with scales on one side of the measuring tube 1 extending into the measuring bottle 2, and the variation of the frozen volume of the soil sample can be calculated by reading the corresponding degree of the scales of the liquid level of the hydrophobic fluid before and after the soil sample is put.
In the embodiment provided by the utility model, the measuring bottle 2 is of a vertical structure. As shown in fig. 2, the L-shaped measuring tube 1 comprises a vertical part 12 and a horizontal part 11 connected to each other, the horizontal part 11 extending into the measuring bottle 2 through one end thereof for communicating hydrophobic fluid, and scales are provided on the side walls of the horizontal part 11 and the vertical part 12.
Further, the horizontal portion 11 is communicated with the hydrophobic fluid in the measuring bottle 2 through one end thereof penetrating the side wall of the measuring bottle 2.
In the embodiment provided by the utility model, the hydrophobic fluid is gallium-based liquid alloy, has strong hydrophobicity, and is nontoxic, and the freezing point is less than-10 degrees, and takes place linear expansion when the temperature variation (namely under the same condition of temperature variation, liquid volume variation is directly proportional with the total volume of this liquid).
In order to further strengthen the sealing effect of the top cover 4 and the measuring bottle 2 bottleneck, make the top cover 4 more closely laminate with the measuring bottle 2 bottleneck mutually the utility model provides an in the embodiment, make top cover 4 and measuring bottle 2 mutual closure through the mode that sets up bolt-up. In the embodiment, as shown in fig. 4, the top cap 4 includes a top portion 41 and a bottom portion 42, the front surface of the top cap is in a T-shaped structure, the diameter of the top portion 41 is larger than that of the bottom portion 42, the diameter of the bottom portion 42 is similar to that of the mouth of the measuring bottle 2, and the bottom portion 42 of the top cap 4 extends into the measuring bottle 2 to plug the mouth. The groove portion 21 is located on the inner side wall (the radial side facing the bottom 42 of the top cover 4) of the mouth of the measuring bottle 2, and the sealing ring 3 in the groove portion 21 is used for being tightly attached to the bottom 42 of the top cover 4. As shown in fig. 3 to 5, the outer side wall of the mouth of the measuring bottle 2 has a bolt hole 22, and the top 41 edge of the top cover 4 (the area where the top 41 and the bottom 42 have a radial length difference) has a through hole 43 corresponding to the bolt hole 22. The bolt holes 22, the through holes 43, and the number of bolts can be set as appropriate.
The utility model discloses use scheme includes:
1. firstly, pouring a proper amount of gallium-based liquid alloy into a measuring bottle 2 of the device until the liquid level in the measuring tube 1 is flush with the opening of the measuring bottle, and recording the volume V of the poured alloy 1 And the height h of the liquid level in the measuring tube 1 1 ；
2. Then the sealing ring 3 is placed in the groove part 21, the bottle cap is covered, and the three bolts are screwed in to tightly fix the top cover 4 on the measuring bottle 2, so that the good air tightness of the device in the measuring process is ensured; the whole apparatus was then placed in a freezer and taken out after 24 hours, and the level scale reading h in the measuring tube 1 was recorded 2 Then the volume is V 1 At the temperature, i.e., (h) 1 -h 2 ) X measuring the cross-sectional area S of the tube 1;
3. further, the height was 2cm, the diameter was 61.8mm, and the volume was 60cm 3 The ring-cutter sample is placed in the measuring flask 2, the gallium-based liquid alloy is poured until the measuring flask 2 is filled, and the volume V of the poured fluid is recorded 2 And the height h of the liquid level in the measuring tube 1 is measured at this time 3 (ii) a Screwing three bolts to tightly fix the top cover 4 on the measuring bottle 2, so as to ensure good air tightness of the device in the measuring process; the whole apparatus is then placed in a freezer and taken out after 24 hours, and the height h of the liquid level in the measuring tube 1 is recorded 4 ；
4. The volume change of the frozen soil sample is
(Note: a positive value indicates frost heaving in the soil sample and a negative value indicates frost shrinkage in the soil sample)
To sum up, the utility model provides a pair of soil sample freezes body and becomes measuring device, including surveying buret, measuring flask, sealing washer and top cap. Top cap detachably cooperatees with the bottleneck of measuring the bottle, and the bottleneck of measuring the bottle has the concave part, has the sealing washer in this concave part, and when the top cap cooperateed with the bottleneck of measuring the bottle, the sealing washer closely laminated the lateral wall at the top cap. Hydrophobic fluid is arranged in the measuring bottle, and one side of the measuring tube penetrates through the measuring bottle and extends into the hydrophobic fluid in the measuring bottle; the side wall of one side of the measuring tube extending into the measuring bottle is provided with scales; when the soil sample is put into the hydrophobic fluid in the measuring bottle, the volume of the hydrophobic fluid can be changed, so that the liquid level of the hydrophobic fluid moves in a section with scales on the side of the measuring tube extending into the measuring bottle. The device provided by the utility model, guaranteed the accurate degree of measurement, make the simple easy operation of measuring step, improve experimental efficiency. The embodiment of the utility model provides a soil sample freezes body and becomes measuring device based on gallium-based liquid alloy. The device can ensure the accuracy of the measuring result and also can ensure that the measuring steps are simple and easy to operate.
For device or system embodiments, since they are substantially similar to method embodiments, they are described in relative simplicity, and reference may be made to some descriptions of method embodiments for related points. The above-described embodiments of the apparatus and system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A soil sample frozen body deformation measuring device is characterized by comprising a measuring tube, a measuring bottle, a sealing ring and a top cover;
the top cover is detachably matched with the bottle mouth of the measuring bottle, the bottle mouth of the measuring bottle is provided with a groove part, a sealing ring is arranged in the groove part, and when the top cover is matched with the bottle mouth of the measuring bottle, the sealing ring is tightly attached to the side wall of the top cover;
the measuring bottle has a hydrophobic fluid therein; the measuring tube is an L-shaped tube, and one end of the measuring tube penetrates through the side wall of the measuring bottle and is communicated with the hydrophobic fluid in the measuring bottle; the height of the other end of the measuring tube is greater than that of the bottle mouth of the measuring bottle; the side wall of the measuring pipe is provided with scales; when a soil sample is put into the hydrophobic fluid in the measuring bottle, the position of the liquid level of the hydrophobic fluid can be changed, so that the liquid level of the hydrophobic fluid moves in a section with scales on the side of the measuring pipe extending into the measuring bottle.
2. The soil sample frozen body deformation measuring device according to claim 1, wherein the measuring bottle is of a vertical structure; the L-shaped measuring tube comprises a vertical portion and a horizontal portion which are connected with each other, the horizontal portion extends into the measuring bottle through one end of the horizontal portion, the measuring bottle is communicated with hydrophobic fluid, and the scale is located on the side walls of the horizontal portion and the vertical portion.
3. The soil sample frozen body deformation measuring device of claim 2, wherein the horizontal portion is communicated with the hydrophobic fluid in the measuring bottle through one end of the horizontal portion penetrating through the side wall of the bottom of the measuring bottle.
4. A soil sample freezing transformation measuring device according to claim 1, wherein said hydrophobic fluid is a gallium-based liquid alloy.
5. The soil sample frozen body deformation measuring device of claim 1, wherein the top cover and the measuring bottle are mutually matched through bolts; the top cover comprises a top part and a bottom part, the diameter of the top part is larger than that of the bottom part, and the bottom part of the top cover extends into the measuring bottle; the groove is positioned on the inner side wall of the bottle mouth of the measuring bottle, and the sealing ring in the groove is tightly attached to the bottom of the top cover; the outer side wall of the bottle mouth of the measuring bottle is provided with a bolt hole, and the top edge of the top cover is provided with a through hole corresponding to the bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220229839.2U CN217212368U (en) | 2022-01-27 | 2022-01-27 | Soil sample frozen body becomes measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220229839.2U CN217212368U (en) | 2022-01-27 | 2022-01-27 | Soil sample frozen body becomes measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217212368U true CN217212368U (en) | 2022-08-16 |
Family
ID=82794854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220229839.2U Active CN217212368U (en) | 2022-01-27 | 2022-01-27 | Soil sample frozen body becomes measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217212368U (en) |
-
2022
- 2022-01-27 CN CN202220229839.2U patent/CN217212368U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2171801C (en) | A level measurement method and apparatus using measurements of water column pressure therefor | |
| CN103487564B (en) | Double-chamber determinator for volume frost-heaving ratio of frozen soil | |
| CN104007135B (en) | Earth working material change in volume method of testing | |
| CN101187643B (en) | Solid-liquid phase change material normal pressure thermal expansion rate and work volume digital measuring device | |
| CN110146688A (en) | A kind of concrete early deformation detection device and its detection method | |
| CN109187285A (en) | Seepage through soil mass experimental rig | |
| CN202869938U (en) | Constant head soil layer permeability coefficient tester | |
| CN108445192A (en) | A kind of multi-functional frost heave, thaw collapse experimental rig | |
| CN110146687A (en) | Detection device and method for concrete early deformation under various environment temperatures | |
| CN104483718A (en) | High-precision rainfall measuring instrument | |
| CN107941847A (en) | A kind of test device and method for the deformation of cement concrete early stage frost heave | |
| CN108956425A (en) | A kind of device and method measuring extra-viscous oil reservoir initial water permeability | |
| CN217212368U (en) | Soil sample frozen body becomes measuring device | |
| CN208921233U (en) | A kind of multifunction electronic water gauge | |
| CN111680403B (en) | Frozen wall development condition judging and early warning method based on thermo-acoustic coupling algorithm | |
| CN115754248B (en) | Diving-soil moisture movement tracing experimental device and method based on radon isotope under freezing condition | |
| CN110068415B (en) | Device and method for measuring pore water pressure and ice pressure in normal frozen soil | |
| CN205384209U (en) | Capillary rise height and feedwater degree apparatus | |
| CN203941304U (en) | A kind of evaporation from water surface automatic water supplement and measurement mechanism | |
| CN108333329B (en) | Multifunctional test device for on-site determination of salt expansion of sulfate saline soil | |
| CN208872753U (en) | A kind of experimental rig for testing roadbed filling frost-heaving deformation | |
| CN208537081U (en) | Positive frozen soil Pore Pressure and ice pressure measuring device | |
| CN216900317U (en) | Large-scale frost heaving test system for coarse-grained soil | |
| CN204044152U (en) | A kind of device measuring cement-based material self-constriction amount | |
| RU200182U1 (en) | Float Liquid Level Gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |