CN109655308B - Portable detachable open soil sampler suitable for silt weak soil - Google Patents
Portable detachable open soil sampler suitable for silt weak soil Download PDFInfo
- Publication number
- CN109655308B CN109655308B CN201910097541.3A CN201910097541A CN109655308B CN 109655308 B CN109655308 B CN 109655308B CN 201910097541 A CN201910097541 A CN 201910097541A CN 109655308 B CN109655308 B CN 109655308B
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- pull rod
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- 239000002689 soil Substances 0.000 title claims abstract description 91
- 238000005527 soil sampling Methods 0.000 claims abstract description 34
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000005070 sampling Methods 0.000 abstract description 18
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000010409 thin film Substances 0.000 abstract 3
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides a portable detachable open soil sampler suitable for silt soft soil, which comprises a soil sampling tube and a rectangular pull rod, wherein the soil sampling tube is of a rectangular tube structure and comprises a front plate, a rear plate, a left plate and a right plate, the front plate comprises an inner plate, an outer plate and two triangular convex blocks, a rotating area is formed by the upper area and the lower area of the two convex blocks, the rear plate is identical to the front plate in structure, sliding grooves are formed in the bottoms of the inner walls of the front plate and the inner wall of the rear plate, clamping grooves are formed in the bottoms of the left plate and the right plate, the two clamping grooves and the two sliding grooves enclose a rectangle, the pull rod is arranged between the two convex blocks and can rotate in the rotating area, the lower edge of the pull rod is connected with a sliding rod, a rolling shaft is fixed in one clamping groove, a thin film is wound on the rolling shaft, the end of the thin film is fixed on the sliding rod, the sliding rod is enabled to slide from one end of the sliding groove to the other end of the sliding groove, and the sliding rod drives the thin film to seal the lower port of the soil sampling tube. The invention has the beneficial effects that: the integrated sampling and sample storage is realized, the secondary disturbance of sampling is avoided, and the sampling ratio and the sampling quality are improved.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering, in particular to a portable detachable open soil sampler suitable for silt soft soil.
Background
The soft soil is a soil body with extremely poor engineering properties due to high water content, strong compressibility, low bearing capacity and low shear strength, and how to cope with various geological problems caused by the soft soil is a widely studied problem in a large amount of urban underground construction processes. Soft soil is often distributed on geological bodies such as river alluvial plain, and the plain areas are the first choice for living of human beings, so in the engineering construction process, the influence of the soft soil on the construction is always considered, and the accurate understanding of the soft soil property is very important. In the method for researching the soil body property, the field test and the indoor test are most reliable. But the field conditions are limited, the types of tests which can be carried out are limited, and the tests can be carried out indoors to be used as supplements, so that the properties of the soil body can be comprehensively mastered, and the key problem of the indoor tests is how to ensure the original state of the soil body.
Soft soil is soil in a plastic-plastic state, so that the undisturbed sampling work of the soft soil becomes a difficult point. At present, the soft soil sampling tool has the common problems of low sampling quality, large disturbance, difficult carrying and the like, and a rough twisting or pulling mode is adopted to separate a soil sample from bottom soil after sampling, so that the disturbance is large, the sampling ratio is low, and the soil body at the lower end is extremely easy to fall off under the action of gravity, so that sampling failure is caused; after the soil sample is lifted to the earth surface, the soil body is taken out of the sampler by utilizing the thrust force, so that secondary disturbance of the soil sample can be caused, and the sampling quality of the soil sample is greatly reduced.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a portable detachable open soil sampler suitable for silt soft soil.
The embodiment of the invention provides a portable detachable open soil sampler suitable for silt soft soil, which comprises a soil sampling tube and a rectangular pull rod, wherein the soil sampling tube is of a rectangular tube structure and comprises a front plate, a rear plate, a left plate and a right plate, the front plate comprises an inner plate, an outer plate and two triangular protruding blocks which are arranged between the inner plate and the outer plate and are oppositely arranged, a rotating area is formed by the upper area and the lower area of each protruding block, the rear plate is the same as the front plate, sliding grooves are formed in the bottoms of the inner wall of the front plate and the inner wall of the rear plate, clamping grooves are formed in the bottoms of the inner wall of the left plate and the inner wall of the right plate, the clamping grooves are equal in height and are formed by surrounding the two sliding grooves and the two sliding grooves, the front edge of the pull rod is obliquely arranged between the two protruding blocks and is rotatably fixed on the front plate, the rear edge is obliquely arranged between the two protruding blocks and is rotatably fixed on the front plate, the rotating area is identical with the front plate, the inner wall of the rear plate is fixedly arranged on the front plate, the sliding groove is fixedly arranged on the lower end face of the film, the sliding tube is fixedly arranged on the sliding rod, the sliding end is fixedly arranged on the sliding rod, and the sliding rod is in the sliding end, and is fixedly arranged on the sliding rod.
Further, the upper edge of the pull rod is an upper rod, the front edge of the pull rod is a front rod, the rear edge of the pull rod is a rear rod, two ends of the upper rod are respectively and vertically connected with the upper end of the front rod and the upper end of the rear rod, the lower end of the front rod and the lower end of the rear rod are respectively and vertically connected with two ends of the slide rod, the midpoint of the front rod is rotatably fixed at the center of the inner plate of the front plate, and the midpoint of the rear rod is rotatably fixed at the center of the inner plate of the rear plate.
Further, the chute is a T-shaped chute, hemispherical bulges are arranged at the lower ends of the front rod and the rear rod, and the two bulges are respectively contained in the two chute and can slide.
Further, the sliding rod is a steel wire, and two ends of the steel wire are respectively connected with the lower ends of the front rod and the rear rod.
Further, the pull rod comprises a telescopic U-shaped handle, and two ends of the handle are respectively connected with the upper end of the front rod and the upper end of the rear rod in a sliding mode.
Further, the vertical edges of the front plate, the rear plate, the left plate and the right plate are provided with dovetail grooves or convex strips, and two adjacent plates are fixedly connected through the dovetail grooves and the convex strips in a matching manner.
Further, the lower parts of the front plate, the rear plate, the left plate and the right plate are inclined inwards to form cutting edges.
Further, the soil sampling device comprises a top cover and a bottom cap, wherein the top cover is used for sealing an upper port of the soil sampling cylinder, and the bottom cap is used for sealing the cutting edge.
Further, the edge of the upper port of the soil sampling cylinder is provided with a threaded hole and a soil lifting screw, and the soil lifting screw is matched with the threaded hole to lift the soil sampling cylinder.
The technical scheme provided by the embodiment of the invention has the beneficial effects that: according to the portable detachable open soil sampler suitable for silt soft soil, the pull rod is rotated to drive the slide rod so as to cut off the soil sample at the lower part, so that the separation of sampling soil and bottom soil is realized, the soil sample falling caused by pulling out the soil sampler can be prevented, the sampling ratio and the sampling quality are improved, the disturbance is small, and the soil sampler is improved in soil sampling efficiency compared with the soil sampler sampling through a waste soil chamber; the square soil sampling cylinder can be assembled and disassembled, and when the soil sampling cylinder samples, the soil sample can be completely taken out in a way of extracting the side wall, so that the integration of sampling and sample storage is realized, the secondary disturbance caused by thrust sampling is avoided, and meanwhile, the sampling quality is improved.
Drawings
FIG. 1 is an external schematic view of a portable removable open soil sampler suitable for use with silt soft soil in accordance with the present invention;
FIG. 2 is an internal schematic view of a portable removable open soil sampler suitable for use with silt soft soil in accordance with the present invention;
FIG. 3 is a partial schematic view of FIG. 2 at A;
FIG. 4 is a schematic view of the front plate of FIG. 2;
fig. 5 is a schematic view showing connection of the front plate, the rear plate, the left plate and the right plate of the soil sampling cylinder 1 in fig. 1;
FIG. 6 is a schematic view of the top cover;
FIG. 7 is a schematic view of the bottom cap;
FIG. 8 is a schematic view of a soil lifting screw;
fig. 9 is a schematic view of a portable detachable open soil sampler suitable for silt soft soil according to the present invention.
In the figure: 1-soil taking cylinder, 2-pull rod, 3-cutting edge, 4-front plate, 5-back plate, 6-left plate, 7-right plate, 8-bump, 9-rotation area, 10-slide bar, 11-film, 12-roller, 13-chute, 14-clamping groove, 15-movable fulcrum, 16-dovetail groove, 17-convex strip, 18-top cover, 19-bottom cap, 20-threaded hole, 21-soil lifting screw and 22-handle.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, 6 and 7, an embodiment of the present invention provides a portable detachable open soil sampler suitable for silt soft soil, which comprises a soil sampling cylinder 1, a rectangular pull rod 2, a top cover 18 and a bottom cap 19.
Referring to fig. 2, fig. 3, fig. 4 and fig. 5, the soil sampling tube 1 is of a rectangular tube structure, and comprises a front plate 4, a rear plate 5, a left plate 6 and a right plate 7, wherein a dovetail groove 16 or a raised strip 17 is arranged on the vertical edge of the front plate 4, the rear plate 5, the left plate 6 and the right plate 7, the two adjacent plates are fixedly connected through the cooperation of the dovetail groove 16 and the raised strip 17, the left plate 6 and the right plate 7 in the embodiment are identical in structure, the front plate 4 and the rear plate 5 are identical in structure, the front plate 4 comprises an inner plate, an outer plate and two triangular protruding blocks 8 which are oppositely arranged between the inner plate and the outer plate, gaps are reserved between the opposite top angles of the protruding blocks 8, a rotating area 9 is formed in the upper area and the lower area of the protruding blocks 8, a clamping groove 14 is formed in the bottom of the inner wall of the left plate 6 and the inner wall of the right plate 7, a rolling shaft 12 is arranged in the clamping groove 14, the rolling shaft 12 is wound in the clamping groove 14, the rolling shaft 12 is arranged on the rolling shaft 12, the inner plate 4 is provided with a rectangular groove 13 and the bottom 13, and the sliding groove 13 is formed in the sliding groove 13.
The pull rod 2 is obliquely arranged in the front plate 4 and the rear plate 5, the upper edge of the pull rod 2 is an upper rod, the front edge is a front rod, the rear edge is a rear rod, the two ends of the upper rod are respectively and vertically connected with the upper end of the front rod and the upper end of the rear rod, the lower end of the front rod and the lower end of the rear rod are respectively and vertically connected with two ends of a slide rod 10, the front rod is obliquely arranged between two convex blocks 8 in the front plate 4, the rear edge is obliquely arranged between two convex blocks 8 in the rear plate 5, the center of an inner plate of the front plate 4 and the center of an inner plate of the rear plate 5 are provided with movable supporting points 15, the two movable supporting points 15 are respectively and rotatably connected with the middle points of the front rod and the middle points of the rear rod, so that the pull rod 2 can rotate in the rotating area 9, the lower ends of the front rod and the rear rod are respectively provided with hemispherical bulges, the two bulges are respectively accommodated in two sliding grooves 13 and can slide, in this embodiment, the sliding rod 12 is selectively provided with steel wires 11, the sliding rod 12 is overlapped with the two sliding grooves 12, the sliding ends are respectively, the sliding tube 2 is covered by the sliding tube 2, and the two ends are respectively, the sliding tube 2 is folded by the sliding tube 2, and the sliding tube 2 is stretched by the sliding tube, and the sliding tube 2.
Referring to fig. 1 and 8, the edge of the upper port of the soil sampling tube 1 is provided with a threaded hole 20, in this embodiment, the threaded holes 20 are disposed above the left plate 6 and the right plate 7, soil lifting screws 21 are disposed on the threaded holes 20, the top cover 18 is disposed above the upper port of the soil sampling tube 1, the top cover 18 is a rectangular cover body, and has the same shape as the upper port of the soil sampling tube 1, and the top cover 18 is used for covering the upper port of the soil sampling tube 1 to seal the upper port; the lower parts of the front plate 4, the rear plate 5, the left plate 6 and the right plate 7 are inclined inwards to form a cutting edge 3, the cutting edge 3 enhances the soil cutting capacity of the lower end of the soil taking barrel 1, the bottom cap 19 is a rectangular sleeve, the shape of the bottom cap is the same as that of the lower part of the soil taking barrel 1, the bottom cap 1 is used for sleeving the cutting edge 3 and sealing the same, and the top cover 18 and the bottom cap 19 are of a sealed integrated structure formed by pouring environment-friendly resin.
Referring to fig. 9, the sampling steps of the portable detachable open soil sampler suitable for silt soft soil of the present invention are as follows:
(1) Leveling the surface of the sampled earth, coating vaseline on the inner walls of the front plate 4, the rear plate 5, the left plate 6 and the right plate 7 of the soil taking tube 1, assembling the soil taking tube 1 and the pull rod 2, winding the roller 12 by the film 11, connecting the slide bar 10, the pull rod 2 and the handle 22, assembling the front plate 4, the rear plate 5, the left plate 6 and the right plate 7 of the soil taking tube 1 through the dovetail grooves 16 and the convex strips 17, and taking care to realize the combination of the soil taking tube 1 according to the sliding from top to bottom;
(2) The soil sampling cylinder 1 is pressed into soft soil in a static pressure mode, the soft soil is kept to enter the soft soil along the vertical direction, the soft soil enters the soil sampling cylinder 1, in addition, a side plate threaded hole 20 is required to be left above the ground surface, a pushing handle 2 rotates in a rotating area 9, a sliding rod 10 moves leftwards from the right end of a sliding groove 13 to drive the sliding rod 10 and a PVC film 11 to move leftwards, the sliding rod 10 is fixed at a U-shaped clamping groove 14 at the inner side of the left plate, and the PVC film 11 seals the lower port of the soil sampling cylinder 1;
(3) Two soil lifting screws 21 are screwed into the left plate 6 and the right plate 7 of the soil sampling cylinder 1 respectively, a handle 22 and the soil lifting screws 21 are pulled, the whole soil sampling cylinder 1 is lifted out of the ground surface, the soil lifting screws 21 are screwed out, the handle 22 is retracted, the outer layer of the soil sampling cylinder 1 is wrapped with a preservative film, and then a top cover 18 and a bottom cover 19 are covered, so that the soil sample is hermetically stored;
(4) The soil sample is sent back to a laboratory for indoor test, firstly, the soil sampling tube 1 is horizontally placed, the top cover 18 and the bottom cap 19 are removed, the preservative film is torn off, then the handle 22 is pulled out, the handle is pushed to the left from the right, the roller 12 and the film 11 are reset, the sliding rod 10 at the bottom of the pull rod 2 is removed, the whole pull rod 2 is pulled out, the left plate 6 and the right plate 7 are pulled out from top to bottom along the direction of the dovetail groove 16, the front plate 4 is taken out, and the soil sample is taken out for test.
In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the protection sought herein.
The embodiments described above and features of the embodiments herein may be combined with each other without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (7)
1. Portable detachable open soil sampler suitable for silt weak soil, its characterized in that: the soil sampling device comprises a soil sampling tube and a rectangular pull rod, wherein the soil sampling tube is of a rectangular tube structure and comprises a front plate, a rear plate, a left plate and a right plate, the front plate comprises an inner plate, an outer plate and two triangular protruding blocks which are arranged between the inner plate and the outer plate and are oppositely arranged, a rotating area is formed by the upper area and the lower area of the protruding blocks, the rear plate is identical to the front plate in structure, sliding grooves are formed in the inner wall of the front plate and the bottom of the inner wall of the rear plate, clamping grooves are formed in the inner wall of the left plate and the bottom of the inner wall of the right plate, the clamping grooves and the sliding grooves are equal in height, the clamping grooves and the sliding grooves enclose a rectangle, the front edge of the pull rod is obliquely arranged between the two protruding blocks in the front plate and is rotatably fixed on the front plate, the rear edge of the pull rod is obliquely arranged between the two protruding blocks and is rotatably fixed on the front plate, the pull rod can rotate in the rotating area, a rolling shaft is fixedly arranged in the lower edge of the pull rod, a rolling shaft is fixedly arranged in the clamping groove, a rolling shaft is respectively, the clamping groove is fixedly arranged on the bottom of the inner wall of the rear plate, the sliding shaft is fixedly arranged on the clamping groove, the clamping groove is fixedly arranged on the end, the end of the film is wound on the sliding shaft, and the end is fixedly arranged on the sliding shaft, and the end is sealed at one end of the film, and is sealed by the sliding shaft.
The upper edge of the pull rod is an upper rod, the front edge of the pull rod is a front rod, the rear edge of the pull rod is a rear rod, two ends of the upper rod are respectively and vertically connected with the upper end of the front rod and the upper end of the rear rod, the lower end of the front rod and the lower end of the rear rod are respectively and vertically connected with two ends of the slide rod, the midpoint of the front rod is rotatably fixed at the center of an inner plate of the front plate, and the midpoint of the rear rod is rotatably fixed at the center of the inner plate of the rear plate;
the lower parts of the front plate, the rear plate, the left plate and the right plate are inclined inwards to form cutting edges.
2. A portable removable open soil sampler suitable for use with muddy soft soil as claimed in claim 1, wherein: the sliding groove is a T-shaped sliding groove, hemispherical bulges are arranged at the lower ends of the front rod and the rear rod, and the two hemispherical bulges are respectively contained in the two sliding grooves and can slide.
3. A portable removable open soil sampler suitable for use with muddy soft soil as claimed in claim 2, wherein: the sliding rod is a steel wire, and two ends of the steel wire are respectively connected with the lower ends of the front rod and the rear rod.
4. A portable removable open soil sampler suitable for use with muddy soft soil as claimed in claim 1, wherein: the pull rod comprises a telescopic U-shaped handle, and two ends of the handle are respectively and slidably connected with the upper end of the front rod and the upper end of the rear rod.
5. A portable removable open soil sampler suitable for use with muddy soft soil as claimed in claim 1, wherein: the vertical edges of the front plate, the rear plate, the left plate and the right plate are provided with dovetail grooves or convex strips, and two adjacent plates are fixedly connected through the dovetail grooves and the convex strips in a matching manner.
6. A portable removable open soil sampler suitable for use with muddy soft soil as claimed in claim 1, wherein: the soil sampling device comprises a top cover and a bottom cap, wherein the top cover is used for sealing an upper port of the soil sampling cylinder, and the bottom cap is used for sealing the cutting edge.
7. A portable removable open soil sampler suitable for use with muddy soft soil as claimed in claim 1, wherein: the edge of the upper port of the soil sampling cylinder is provided with a threaded hole and a soil lifting screw, and the soil lifting screw is matched with the threaded hole to lift the soil sampling cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097541.3A CN109655308B (en) | 2019-01-31 | 2019-01-31 | Portable detachable open soil sampler suitable for silt weak soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097541.3A CN109655308B (en) | 2019-01-31 | 2019-01-31 | Portable detachable open soil sampler suitable for silt weak soil |
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| CN109655308A CN109655308A (en) | 2019-04-19 |
| CN109655308B true CN109655308B (en) | 2024-01-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320067A (en) * | 2019-08-13 | 2019-10-11 | 安徽省水利水电勘测设计院 | A kind of undisturbed soil sample encapsulation auxiliary device |
| CN114136690B (en) * | 2021-11-29 | 2022-08-16 | 哈尔滨师范大学 | Peat ground sampling contrast device |
| CN114414287A (en) * | 2022-01-18 | 2022-04-29 | 中国人民解放军陆军勤务学院 | On-site undisturbed soil block sampling device easy to transport and small in disturbance and sampling method thereof |
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| "国外取土器综述";卞昭庆;《勘察科学技术》(第第3期期);第24-32页 * |
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