CN114906442B - Confining pressure type soil sampling box based on screw thread precession - Google Patents
Confining pressure type soil sampling box based on screw thread precession Download PDFInfo
- Publication number
- CN114906442B CN114906442B CN202210534751.6A CN202210534751A CN114906442B CN 114906442 B CN114906442 B CN 114906442B CN 202210534751 A CN202210534751 A CN 202210534751A CN 114906442 B CN114906442 B CN 114906442B
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- China
- Prior art keywords
- sampling box
- soil sampling
- soil
- sample
- confining pressure
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- 238000005527 soil sampling Methods 0.000 title claims abstract description 110
- 239000002689 soil Substances 0.000 claims abstract description 44
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000011835 investigation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
- B65D7/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by shape
- B65D7/04—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by shape of curved cross-section, e.g. cans of circular or elliptical cross-section
- B65D7/045—Casks, barrels, or drums in their entirety, e.g. beer barrels, i.e. presenting most of the following features like rolling beads, double walls, reinforcing and supporting beads for end walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
- B65D41/04—Threaded or like caps or cap-like covers secured by rotation
- B65D41/08—Threaded or like caps or cap-like covers secured by rotation engaging a threaded ring clamped on the external periphery of the neck or wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
- B65D7/12—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls
- B65D7/24—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls collapsible, e.g. with all parts detachable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
- B65D7/42—Details of metal walls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to the technical field of geotechnical engineering investigation, in particular to a confining pressure type soil sampling box based on screw thread precession, which comprises a soil sampling box and two soil sampling box covers, wherein external screw threads are respectively arranged at two ends of the soil sampling box, internal screw threads matched with the external screw threads are respectively arranged on the two soil sampling box covers, the soil sampling box covers and the soil sampling box form screw thread connection, a cavity for accommodating a soil sample is formed in the soil sampling box, and the screw thread of the soil sampling box covers can enable the inner diameter of the soil sampling box to be gradually reduced and squeeze the soil sample so as to apply lateral pressure to the soil sample. The invention has the advantages that: the soil sample is conveyed with confining pressure, the stress state of the soil sample is reduced, and the authenticity and accuracy of the indoor test data of the soil sample are greatly improved; the screwing turns of the soil sampling box cover are precisely controlled, and force application balance is guaranteed, so that precise control of soil sample confining pressure is realized; simple and reasonable structure, simple manufacturing process, lower cost, convenient use, portability and transportation, and suitability for popularization.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering investigation, in particular to a confining pressure type soil sampling box based on screw precession.
Background
In the geotechnical engineering investigation process, various indoor tests are often needed to be carried out on soil samples in drilling holes to obtain relevant physical and mechanical parameters of soil, and the soil samples are used for analyzing and evaluating engineering geological properties of the soil in a site, engineering design and other important purposes. The soil sample taken by the soil sampler is often packaged and transported by a common soil sampling box, the initial stress state of the soil sample is relieved after the soil sample is taken out, and the soil sample cannot be timely sent to a geotechnical laboratory after the soil sample is taken out, so that the physical state of the soil can be greatly changed. The test results obtained by using the soil sample for the related geotechnical test are inevitably greater in and out than the actual ones, and are unfavorable for the safety and economy of engineering design.
Disclosure of Invention
According to the defects of the prior art, the invention provides the confining pressure type soil sampling box based on screw thread screwing, and the side wall of the soil sampling box can apply lateral pressure to a soil sample in the soil sampling box to maintain a certain stress state of the soil sample through the screw thread screwing type structure design between the soil sampling box and the soil sampling box cover, so that the physical state of the soil sample is the same as the physical state of the soil sample in an initial ground stress state to a great extent, and the authenticity of indoor test data of the soil sample is improved.
The invention is realized by the following technical scheme:
the utility model provides a box is got to confining pressure formula based on screw precession which characterized in that: including soil sampling box and two soil sampling box covers, the both ends of soil sampling box are provided with the external screw thread respectively, two the soil sampling box cover is equipped with the internal screw thread with the external screw thread adaptation respectively, soil sampling box cover with constitute threaded connection between the soil sampling box, the inside cavity that is used for holding soil sample that has of soil sampling box, the screw of soil sampling box cover can make soil sampling box internal diameter diminishes gradually and extrudees the soil sample in order to right soil sample applys the lateral pressure.
External threads at two ends of the soil sampling box gradually become larger from two ends to the middle, and the diameter of internal threads of the soil sampling box cover is constant.
The diameter of the external threads at two ends of the soil sampling box is the same as the diameter of the inner wall of the soil sampling box, and the maximum thread diameter of the soil sampling box is the same as the diameter of the outer wall of the soil sampling box.
The box wall of the soil sampling box is divided into an upper part and a lower part through a bus, and the upper part and the lower part are overlapped along the direction vertical to the bus when the soil sampling box cover is screwed.
The outer side of the soil sampling box is carved with scale marks and marks with the same number as that of external threads at the two ends of the soil sampling box, so as to judge the screwing turns of the soil sampling box cover at the two sides.
The soil sampling box is made of aluminum round tubes, and the soil sampling box cover is made of aluminum.
The invention has the advantages that: the soil sample is conveyed with confining pressure, so that the stress state of the soil sample is reduced to a great extent, and the authenticity and accuracy of the indoor test data of the soil sample are greatly improved; the screwing turns of the soil sampling box cover are precisely controlled, and the relative balance of lateral pressure borne by the soil sample is ensured, so that the precise control of the confining pressure of the soil sample is realized; simple and reasonable structure, simple manufacturing process, lower cost, convenient use, portability and transportation, and suitability for popularization.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The features of the invention and other related features are described in further detail below by way of example in conjunction with the following figures to facilitate understanding by those skilled in the art:
as shown in fig. 1, the labels 1-6 are respectively indicated as: the soil sampling box comprises a soil sampling box cover 1, external threads 2, a soil sampling box inner wall 3, a soil sampling box outer wall 4, screw thread scales 5 and a soil sampling box body 6.
Examples: as shown in fig. 1, the confining pressure soil sampling box based on screw-in this embodiment comprises a soil sampling box body 6, wherein the soil sampling box body 6 is made of a material with certain rigidity, preferably moderate toughness and rigidity and has certain corrosion resistance, for example, an aluminum circular tube made of aluminum material, and the thickness of the soil sampling box is 2.5mm, the initial inner diameter is 89mm, the outer diameter is 94mm, and the height is 250mm. The soil sampling box body 6 is provided with a soil sampling box inner wall 3 and a soil sampling box outer wall 4, wherein the soil sampling box inner wall 3 is internally enclosed to form a containing space of a soil sample.
As shown in fig. 1, external threads 2 are respectively arranged at two ends of the soil sampling box body 6, internal threads matched with the external threads 2 are arranged on the inner walls of the two soil sampling box covers 1, and the internal threads can be in threaded fit connection with the external threads 2, so that the soil sampling box covers 1 are screwed on the soil sampling box body 6.
In this embodiment, the outer wall of the soil sampling box body 6 is carved with 15 threads with a projection width (projection to the box wall) of 1.67mm from both ends to the middle, the diameter of the threads gradually increases from both ends to the middle, as shown in fig. 1, the minimum value of the diameter of the threads is 89mm (equal to the inner diameter of the soil sampling box), and the maximum value is 94mm (equal to the outer diameter of the soil sampling box). 15 threads with the width of 1.67mm are carved on the inner side of the soil sampling box cover 1 and meshed with the external threads 2 of the box wall of the soil sampling box body 6.
When in use, the soil sampling box cover 1 forces the diameter of the box wall to be reduced and extrudes the soil sample in the screwing process along the external thread 2 of the box wall of the soil sampling box body 6, so that lateral pressure serving as confining pressure is applied to the soil sample, and the diameter of the box wall is gradually reduced and the confining pressure applied to the soil sample is gradually increased along with the increase of the screwing turns of the soil sampling box cover 1.
As shown in fig. 1, one bus bar of the box wall of the soil sampling box body 6 at the middle position along the horizontal direction thereof is broken, so that the soil sampling box body 6 is divided into an upper part and a lower part; in the process of screwing the soil sampling box cover 1, the box walls at two sides of the bus bar are mutually overlapped, along with the increase of the screwing number of turns of the soil sampling box cover 1, the overlapped parts of the upper and lower box walls of the soil sampling box body 6 are gradually increased, and the extrusion force applied to the soil sample inside the soil sampling box body 6 is larger.
In this embodiment, the performance of the materials used for the soil sampling box body 6 and the soil sampling box cover 1 is sufficient to ensure that deformation damage does not occur in the process of applying lateral pressure to the soil sample, and has strong corrosion resistance, thereby meeting the storage and transportation requirements of the soil sample with large water content. Simultaneously, the soil sample is further convenient to put in and take out by cutting the box wall of the soil sampling box body 6 along a bus bar.
As shown in fig. 1, in order to achieve accurate reading of the number of screwing turns of the soil sampling box cover 1 and rapid judgment of whether the number of screwing turns of the two box covers are the same, in this embodiment, 15 screwed thread scales 5 parallel to the box wall bus are engraved at intervals of 1.05mm from the position of the cut bus at the center of the outer wall of the soil sampling box body 6, and the screwed thread scales 5 comprise scale marks and text labels (1-15).
When the soil sampling box is used, the two sides of the bus bar are overlapped by 1.05mm towards the middle after the two soil sampling box covers 1 rotate for one circle, namely 1 scale, so that the reading of the number of screwing turns of the soil sampling box covers 1 is realized. Meanwhile, whether the screwing turns of the two soil sampling box covers 1 are consistent is judged by observing whether the screwing thread scales 5 are parallel to the buses, and when the scales of the screwing thread scales 5 are intersected with the cut buses, the two soil sampling box covers 1 are different in rotation turns, wherein the soil sampling box cover 1 with the closer scale line distance is a box cover with fewer rotation turns.
The embodiment is implemented in specific manner: the relation between the number of turns of the cap and the lateral pressure it applies to the soil sample can be obtained experimentally, ensuring that the lateral pressure is controllable.
Although the foregoing embodiments have been described in some detail with reference to the accompanying drawings, it will be appreciated by those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the invention as defined in the appended claims, and thus are not repeated herein.
Claims (3)
1. The utility model provides a box is got to confining pressure formula based on screw precession which characterized in that: the soil sampling box comprises a soil sampling box and two soil sampling box covers, wherein external threads are respectively arranged at two ends of the soil sampling box, internal threads matched with the external threads are respectively arranged on the two soil sampling box covers, threaded connection is formed between the soil sampling box covers and the soil sampling box, a cavity for accommodating a soil sample is formed in the soil sampling box, and the inner diameter of the soil sampling box can be gradually reduced by screwing the soil sampling box covers and the soil sample is extruded so as to apply lateral pressure to the soil sample;
external threads at two ends of the soil sampling box gradually become larger from two ends to the middle, and the diameter of the internal threads of the soil sampling box cover is constant;
the outer side of the box wall of the soil sampling box is carved with scale marks and marks which have the same number of threads as external threads at the two ends of the soil sampling box and are parallel to a bus so as to judge the screwing turns of the soil sampling box cover at the two sides;
the box wall of the soil sampling box is divided into an upper part and a lower part through a bus, and the upper part and the lower part are overlapped along the direction vertical to the bus when the soil sampling box cover is screwed.
2. The screw-in based confining pressure soil sampling box as recited in claim 1, wherein: the diameter of the external threads at two ends of the soil sampling box is the same as the diameter of the inner wall of the soil sampling box, and the maximum thread diameter of the soil sampling box is the same as the diameter of the outer wall of the soil sampling box.
3. The screw-in based confining pressure soil sampling box as recited in claim 1, wherein: the soil sampling box is made of aluminum round tubes, and the soil sampling box cover is made of aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210534751.6A CN114906442B (en) | 2022-05-17 | 2022-05-17 | Confining pressure type soil sampling box based on screw thread precession |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210534751.6A CN114906442B (en) | 2022-05-17 | 2022-05-17 | Confining pressure type soil sampling box based on screw thread precession |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114906442A CN114906442A (en) | 2022-08-16 |
| CN114906442B true CN114906442B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210534751.6A Active CN114906442B (en) | 2022-05-17 | 2022-05-17 | Confining pressure type soil sampling box based on screw thread precession |
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| Country | Link |
|---|---|
| CN (1) | CN114906442B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4122704A (en) * | 1978-09-23 | 1978-10-31 | Iowa State University Research Foundation | Portable variable expansion testing device for measuring lateral pressure induced on a material by a vertical applied pressure |
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| US9551188B1 (en) * | 2013-03-13 | 2017-01-24 | Kejr Inc. | Split tube soil sampling system |
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2022
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| US9551188B1 (en) * | 2013-03-13 | 2017-01-24 | Kejr Inc. | Split tube soil sampling system |
| CN105865877A (en) * | 2016-05-30 | 2016-08-17 | 辽宁工程技术大学 | Non-cohesive soil sample filling mold of geotechnical triaxial test |
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| CN114906442A (en) | 2022-08-16 |
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