CN112729926A - Non-disturbance soil sampler and soil sampling method - Google Patents
Non-disturbance soil sampler and soil sampling method Download PDFInfo
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- CN112729926A CN112729926A CN202110060064.0A CN202110060064A CN112729926A CN 112729926 A CN112729926 A CN 112729926A CN 202110060064 A CN202110060064 A CN 202110060064A CN 112729926 A CN112729926 A CN 112729926A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000005527 soil sampling Methods 0.000 title claims abstract description 21
- 238000005070 sampling Methods 0.000 claims abstract description 16
- 210000004907 gland Anatomy 0.000 claims description 18
- 230000007797 corrosion Effects 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 12
- 230000033116 oxidation-reduction process Effects 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 8
- 238000009966 trimming Methods 0.000 abstract description 2
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- 150000003839 salts Chemical class 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 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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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a non-disturbance soil sampler and a soil sampling method, wherein the sampler comprises a square column cutter, an upper cover and a lower cover; the upper cover is provided with an exhaust cover, two side lengths of the opposite sides of the upper edge of the cutter are larger than those of the other two opposite sides to form an upper edge convex rail, the upper cover is provided with two upper cover guide grooves corresponding to the upper edge guide rails, and the upper cover and the cutter keep sliding through the guide grooves and the guide rails, so that the upper part of the cutter can be sealed; the lower edge of the cutter is in a blade shape, two opposite side trimming edges are longer than other two opposite sides, a lower edge convex rail is formed, two lower cover guide grooves corresponding to the lower edge convex rail are arranged on the lower cover, the lower cover and the cutter can slide in parallel, one edge of the lower cover, which is perpendicular to the lower cover guide grooves, is in a blade shape, and an electrode used for measuring soil physical and chemical parameters is embedded in the inner side wall of the square column cutter. The soil sampling method provided by the invention can be used for sampling, can be used for keeping the complete soil of the soil structure, has small disturbance on the soil, and can be used for accurately measuring the physicochemical parameters under the non-disturbance condition.
Description
Technical Field
The invention relates to the technical field of soil sampling, in particular to a non-disturbance soil sampler and a soil sampling method.
Background
The soil is a complex system composed of three-phase substances of gas, liquid and solid, and a framework composed of solid particles of the soil is filled with air, water and different salts. The presence of water and salts capable of conducting ionic conduction in the soil gives the soil the characteristics of an electrolyte solution, the solid particles of which contain sand, ash, sludge and humus soil formed after the decay of plants.
Most soils are a collection of mixed inorganic and organic colloidal particles, which also have many tortuous capillary pores through which water and air in the soil can pass to reach the depth of the soil. Some of the water in the soil is associated with soil constituents, some of which adhere tightly to the periphery of the solid particles and some of which may flow in the micropores. The salts dissolve in this water and the soil becomes the electrolyte. The conductivity of soil is related to the degree of dryness and salinity of the soil. Some oxygen in the soil is dissolved in water and some oxygen is stored in capillary micropores and gaps of the soil, and the content of the oxygen in the soil is closely related to the humidity and the structure of the soil. Various microorganisms live in the soil, among which bacteria having a corrosive effect on metals may be present, and thus the properties of the soil are complicated. Because of the relative immobility of the solid components constituting the soil, unlike the fluidity of the atmosphere and seawater, the physical and chemical properties of the soil are not the same even in the same type of soil.
The physicochemical properties of soil have important effects in the fields of agriculture, electric power, petrochemical industry, buildings and the like, and accurate detection and monitoring of the physicochemical properties of soil have key significance in plant growth, material design, maintenance and the like in the fields. Because the soil is a complex system, the structure, compactness, humidity, plant root system and the like of the soil seriously affect the physical and chemical parameters of the soil. Once the soil is disturbed, the structure and the like of the soil are changed immediately, and a plurality of important physicochemical parameters are changed. For example, the soil resistivity, volume weight and other parameters of the soil are changed immediately after the soil is disturbed. Regarding the soil corrosivity parameter, the corrosivity of the soil is closely related to the original state of the soil.
At present, a cutting ring and the like are generally adopted to cut into soil for non-disturbance sampling of soil, so that the soil is difficult to be not disturbed during sampling, and the cutting ring can also cause damage to the soil structure when a soil sample is removed; in addition, when a soil sample is taken out from the cutting ring and put into a soil physical and chemical parameter detector, the integrity of the original structure of the soil cannot be ensured.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a non-disturbance soil sampler and a soil sampling method, which can completely preserve the complete soil structure in the soil sampling process and have no disturbance to the soil.
The embodiment of the invention provides a non-disturbance soil sampler, which comprises a cutter, an upper cover and a lower cover, wherein the cutter is a square column cutter;
the side length of the opposite side of the upper edge of the cutter is larger than the side lengths of the other two opposite sides to form an upper edge convex rail, two upper cover guide grooves corresponding to the upper edge convex rail are arranged on two sides of the upper cover, and the upper cover guide grooves are used for enabling the upper cover to slide in through the upper edge convex rail to seal the upper part of the cutter;
the lower edge of the cutter is in a blade shape, the side length of two opposite sides is larger than that of the other two opposite sides, a lower edge convex rail is formed, two lower cover guide grooves corresponding to the lower edge convex rail are arranged on the left side and the right side of the lower cover, and the lower cover guide grooves are used for enabling the lower cover to slide in through the lower edge guide rails and sealing the lower part of the cutter;
one edge of the lower cover, which is vertical to the guide groove of the lower cover, is in a blade shape.
Preferably, the upper cover is provided with an exhaust cover, the distance between the upper cover guide grooves is equal to the distance between the upper edge guide rails, the width of the upper cover guide grooves is equal to the width of the upper edge guide rails, the length of the upper cover guide grooves is greater than or equal to the length of the upper edge guide rails, and the upper cover guide grooves start from the edge of one side of the upper cover.
Preferably, the distance between the lower cover guide grooves is equal to the distance between the lower edge guide rails, the length of the lower cover guide grooves is greater than or equal to the length of the lower edge guide rails, and the lower cover guide grooves start from the edge of the blade-shaped edge of the lower cover.
Preferably, the cutter, the upper cover and the lower cover are made of a high-strength nylon insulating material.
Preferably, a resistivity electrode for measuring the resistivity of the soil is embedded in the inner side wall of the cutter;
an oxidation-reduction potential electrode for measuring the oxidation-reduction potential of the soil is embedded in the inner side wall of the cutter;
a natural electrode for measuring natural potential is embedded in the inner side wall of the cutter;
an instantaneous corrosion rate electrode for measuring the instantaneous corrosion rate of soil is embedded in the inner side wall of the cutter;
and a reserved electrode is embedded in the inner side wall of the cutter.
Preferably, the sample thief still includes the pressure assistor, the pressure assistor includes handle, the body of rod and gland, the handle with the gland passes through the body of rod is connected, be equipped with on the gland with two gland guide slots that the upper cover guide slot is unanimous.
The invention provides a non-disturbance soil sampler, which comprises a cutter, an upper cover and a lower cover, wherein the cutter is a square column cutter; through square column cutter and with the square column cutter through two upper and lower samplings of being connected of guide rail, the upper and lower lid slip of being connected through guide rail and guide slot is sealed with the soil of the collection of sample thief collection, keeps the sampling in-process, and after the sampling process, the structural integrity of soil, its cutter embedded measuring electrode can be under keeping the complete condition of soil structure, detects the physicochemical property of soil, measured data is more accurate reliable.
The embodiment of the invention also provides a non-disturbance soil sampling method, which adopts the non-disturbance soil sampler according to any one of the embodiments and comprises the following steps:
pressing the lower edge of the square column cutter into soil until reaching a preset sampling depth;
cleaning soil outside one side surface of the square column cutter, which is vertical to the lower edge guide rail;
the knife edge-shaped edge of the lower cover faces inwards, so that the lower cover is slid into the lower cover guide groove along the lower edge guide rail, and the lower side of the cutter is sealed;
and taking out the whole cutter from the soil, so that the upper cover guide groove slides the upper cover in along the upper edge guide rail, and the upper side of the cutter is sealed.
As a preferable mode, the method further includes: and sealing and packaging the upper cover, the lower cover and the square column cutter by using glass sealant.
As another preferred mode, the pressing of the lower edge of the square column cutter into the soil may specifically be:
pressing a gland of the pressure assistor into the upper edge guide rail along the gland guide groove so that the cutter is connected with the pressure assistor;
and the square column cutter is pressed into soil through a handle of the pressure assist device.
As still another preferable mode, the method further includes: measuring the oxidation-reduction potential of the soil through an oxidation-reduction potential electrode embedded in the cutter;
measuring a natural potential through a natural potential electrode embedded in the cutter;
and measuring the instantaneous corrosion rate of the soil by the instantaneous corrosion rate electrode embedded in the cutter.
The invention discloses a non-disturbance soil sampler and a soil sampling method. The sampler comprises a square column cutter, an upper cover and a lower cover; the upper cover is provided with an exhaust cover, the upper cover is provided with two guide grooves which are parallel to each other, two convex rails are arranged on opposite sides of the upper edge of the cutter, the cutter is connected with the upper cover through the guide grooves on the upper cover, the lower edge of the cutter is in a blade shape, and the two opposite side trimming edges are longer than the other two opposite sides to form the convex rails, so that the lower cover can slide in conveniently; two guide grooves corresponding to the convex rails at the lower edge of the cutter are arranged on the lower cover, and one edge of the guide groove which corresponds to the transverse direction is in a blade shape. When the method is adopted for sampling, the cutter is cut into the soil working surface, the guide groove of the lower cover slides in through the convex rail of the cutter to take out the soil sample, the upper cover slides in through the guide groove to seal the upper part of the cutter, the electrode embedded in the cutter can keep the soil structure complete, and the physical and chemical properties of the soil are measured; the sampler provided by the invention can be used for sampling, so that the structural integrity of soil can be kept, and the physical and chemical properties of the soil can be accurately measured.
Drawings
Fig. 1 is a structural diagram of an upper cover of a non-disturbance soil sampler provided by an embodiment of the invention, wherein fig. a1 is a bottom view, and fig. a2 is a side view;
FIG. 2 is a structural diagram of a lower cover of a non-turbulent soil sampler provided by an embodiment of the invention, wherein FIG. b1 is a top view and FIG. b2 is a side view;
FIG. 3 is a cutter structure diagram of a non-turbulent soil sampler according to an embodiment of the present invention, FIG. c1 is a top view, and FIG. c2 is a front view;
FIG. 4 is a diagram of an auxiliary pressure sampler of an undisturbed soil sampler for physicochemical parameter testing, according to an embodiment of the present invention, wherein FIG. c1 is a front view and FIG. c2 is a bottom view;
FIG. 5 is a flow chart of a method for undisturbed soil sampling according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a non-disturbance soil sampling method according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples, but the present invention is not limited to these examples.
The materials, reagents, methods, apparatuses, etc. used in the following examples are, without being specifically described, all materials, reagents, methods, apparatuses, etc. which are conventional in the art. Those skilled in the art are commercially available.
The invention provides a non-disturbance soil sampler which comprises an upper cover 1, a lower cover 2 and a cutter 3. Referring to fig. 1, which is a structural diagram of an upper cover of a non-disturbance soil sampler according to an embodiment of the present invention, as shown in a top view a1 of the upper cover, upper cover guide grooves 01 and upper cover guide grooves 02 parallel to each other are provided on left and right sides of the upper cover 1, an exhaust cover 03 is further provided on the upper cover 1, and fig. a2 of the upper cover is a side view of the upper cover.
The exhaust cover 03 is openable and closable for exhausting the sampled soil.
Referring to fig. 2, which is a structural view of a lower cover of a non-turbulent soil sampler according to an embodiment of the present invention, as shown in a bottom view b1 of the lower cover, a lower cover guide slot 04 and a lower cover guide slot 05 are provided on both left and right sides of the lower cover 2, which are parallel to each other, and as shown in a side view b2 of the lower cover, one edge of the lower cover perpendicular to the lower cover guide slot is blade-shaped.
Referring to fig. 3, which is a structural diagram of a cutting knife of a non-disturbed soil sampler according to an embodiment of the present invention, as shown in a side view c2 of the cutting knife, opposite sides of an upper edge of the cutting knife 3 are longer than other two opposite sides to form an upper edge convex rail 06 and an upper edge convex rail 07, and opposite sides of a lower edge of the cutting knife 03 are often longer than other two opposite sides to form a lower edge convex rail 08 and a lower edge convex rail 09.
The side length of the opposite side of the upper edge of the cutter 3 is larger than the side lengths of the other two opposite sides to form an upper edge convex rail 06 and an upper edge guide rail 07, two upper cover guide grooves 01 and upper cover guide grooves 02 corresponding to the upper edge convex rail are arranged on two sides of the upper cover 1, and the upper cover guide grooves 01 and the upper cover guide grooves 02 are used for enabling the upper cover 1 to slide in through the upper edge convex rail 06 and the upper edge guide rail 07 to seal the upper side of the cutter 3;
the lower edge of the cutter 3 is in a blade shape, the side length of two opposite sides is larger than that of the other two opposite sides, a lower edge convex rail 08 and a lower edge guide rail 09 are formed, the left side and the right side of the lower cover 3 are provided with the lower edge convex rail 08, the lower edge convex rail 09, a lower cover guide groove 04 and a lower cover guide groove 05 which correspond to the lower edge convex rail 08, the lower edge convex rail 09 and the lower cover guide groove 05, so that the lower cover 3 slides in through the lower edge guide rail 08 and the lower edge convex rail 09 to seal the lower side of the cutter 3;
the upper cover is provided with an exhaust cover, the distance between the two upper cover guide grooves is equal to the distance between the two upper edge guide rails, the width of the two upper cover guide grooves is equal to the width of the two upper edge guide rails, the length of the two upper cover guide grooves is greater than or equal to the length of the two upper edge guide rails, and the two upper cover guide grooves start from the edge of one edge of the two upper covers.
The distance between the two lower cover guide grooves is equal to the distance between the two lower edge guide rails, the length of the two lower cover guide grooves is greater than or equal to the length of the two lower edge guide rails, and the two lower cover guide grooves start from the edge of the blade-shaped edge of the lower cover.
As shown in the top view C1 of the cutter, the resistivity electrode 4 for measuring the resistivity of the soil is embedded in the inner side wall of the square column cutter in the embodiment.
In the embodiment, an oxidation-reduction potential electrode 5 for measuring the oxidation-reduction potential of soil is embedded in the inner side wall of the square column cutter.
The embedded natural potential electrode 6 that is used for measuring the natural potential of square column cutter inside wall in this embodiment.
An instantaneous corrosion rate electrode 7 for measuring the instantaneous corrosion rate of soil is embedded in the inner side wall of the square column cutter in the embodiment.
The embedded electrode 8 that is used for reserving of square column cutter inside wall in this embodiment.
The cutter, the upper cover and the lower cover in the embodiment are made of high-strength nylon insulating materials, and in order to increase the strength of the cutter, the cutter is directly machined by nylon bars and cannot be welded or bonded. The cutter is in a square column shape, the size can be processed according to the sampling test requirement, and the wall thickness meets the sampling strength requirement;
the undisturbed soil sampler provided by the invention further comprises a pressure assistor, as shown in fig. 4, the pressure assistor comprises a handle 10, a rod body 9 and a gland 11, the handle 10 and the gland 11 are connected through the rod body 9, and the gland 11 is also provided with two gland guide grooves 1101 and 1102 consistent with the upper cover guide grooves.
The non-disturbance soil sampler provided by the embodiment of the invention comprises a cutter, a lower cover and an upper cover, wherein the cutter is a square column cutter, the upper edge and the lower edge of the cutter form an upper edge guide groove and a lower edge guide groove, the upper cover slides on the top of the square cutter through the upper edge guide groove, and the lower cover slides on the bottom of the square cutter through the lower edge guide groove to form a closed space, so that the internal sampled soil is not disturbed, the structural integrity of the sampled soil can be kept, and the physicochemical property of the soil can be accurately detected through a detection electrode embedded in the cutter under the condition of keeping the structural integrity of the soil.
Referring to fig. 5, a flow chart of an undisturbed soil sampling method provided by an embodiment of the present invention is also provided, and the undisturbed soil sampler provided by any one of the embodiments is adopted in the method, which includes steps S501 to S504:
s501, pressing the lower edge of a square column cutter into soil until a preset sampling depth is reached;
s502, cleaning soil on the outer side of one side surface of the square column cutter, which is vertical to the lower edge guide rail;
s503, the knife edge-shaped edge of the lower cover faces inwards, so that the lower cover is slid into the lower cover guide groove along the lower edge guide rail, and the lower side of the cutter is sealed;
s504, the whole cutter is taken out of the soil, the upper cover is slid into the upper cover guide groove along the upper edge guide rail, and the upper side of the cutter is sealed.
In this embodiment, after the sampler is taken out, the upper cover, the lower cover and the square column cutter can be sealed and packaged by using glass sealant, so that the structural integrity of the soil after sampling can be maintained.
When the soil of sample is comparatively soft, the sample cutter can directly press and take a sample in the soil, and soil is comparatively tight real-time, can adopt the auxiliary pressure sample thief, slides the gland of pressure assistor in the guide rail of going up along the gland guide slot, and passes through the handle of pressure assistor will the square column cutter is impressed in the soil.
Preferably, the soil sampling method provided by the embodiment can also measure the oxidation-reduction potential of the soil through the oxidation-reduction potential electrode embedded in the cutter;
measuring a natural potential through a natural potential electrode embedded in the cutter;
and measuring the instantaneous corrosion rate of the soil by an instantaneous corrosion rate electrode embedded in the cutter.
Referring to fig. 6, which is a working schematic diagram of a non-disturbance soil sampling method according to an embodiment of the present invention, a cutter is cut into a soil working surface, after the cutter is cut into a certain depth, part of soil on the lateral side of a convex rail at the lower edge of the cutter is cleaned, a lower cover is cut into the soil along the convex rail of the lower cover, the lower cover is cut into the soil and reaches the other side of the cutter, the cutter is taken out entirely from the soil under a state that the bottom of the soil is not disturbed, an upper cover is slid into an upper cover guide groove along an upper edge guide rail, and after a sampler is taken out, the upper cover and the cutter can be sealed and encapsulated by using a glass sealant, so that soil sampling is completed.
The invention discloses a non-disturbance soil sampler and a soil sampling method. The sampler comprises a square column cutter, an upper cover and a lower cover; the upper cover is provided with an exhaust cover, the upper cover is provided with two guide grooves which are parallel to each other, two upper edge convex rails are arranged on opposite sides of the upper edge of the cutter, the upper cover guide grooves are used for enabling the upper cover to slide in through the upper edge guide rails, the lower edge of the cutter is in a cutter edge shape, and the cut edges of the two opposite sides are longer than the other two opposite sides to form two lower edge convex rails; two lower cover guide grooves corresponding to the lower edge convex rails are arranged on the lower cover, the lower cover guide grooves are used for enabling the lower cover to slide in through the lower edge guide rails, and one edge of the lower cover guide grooves which transversely corresponds to the lower cover guide grooves is of a blade edge type. When the method is adopted for sampling, the cutter cuts into the soil working surface, the guide groove of the lower cover slides in through the convex rail of the cutter to take out a soil sample, the upper cover slides in through the guide groove to seal the upper part of the cutter, and the electrode embedded in the cutter can measure the physical and chemical properties of the soil; by sampling through the sampler provided by the invention, the soil structure cannot be changed, the soil disturbance is minimum, the soil structure can be kept complete, and the physicochemical property of the soil can be accurately measured.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The undisturbed soil sampler is characterized by comprising a cutter, an upper cover and a lower cover, wherein the cutter is a square column cutter;
the side length of the opposite side of the upper edge of the cutter is larger than the side lengths of the other two opposite sides to form an upper edge convex rail, two upper cover guide grooves corresponding to the upper edge convex rail are arranged on two sides of the upper cover, and the upper cover guide grooves are used for enabling the upper cover to slide in through the upper edge convex rail to seal the upper part of the cutter;
the lower edge of the cutter is in a blade shape, the side length of two opposite sides is larger than that of the other two opposite sides, a lower edge convex rail is formed, two lower cover guide grooves corresponding to the lower edge convex rail are arranged on the left side and the right side of the lower cover, and the lower cover guide grooves are used for enabling the lower cover to slide in through the lower edge guide rails and sealing the lower part of the cutter;
one edge of the lower cover, which is vertical to the guide groove of the lower cover, is in a blade shape.
2. The non-turbulent soil sampler of claim 1 wherein the top cover has a vent cover, the distance between the top cover guide slots is equal to the distance between the top edge guide rails, the width of the top cover guide slots is equal to the width of the top edge guide rails, the length of the top cover guide slots is greater than or equal to the length of the top edge guide rails, and the top cover guide slots begin at the edge of one of the sides of the top cover.
3. The non-turbulent soil sampler of claim 1 wherein the distance between the lower cover guide slots is equal to the distance between the lower edge guide rails, the length of the lower cover guide slots is greater than or equal to the length of the lower edge guide rails, and the lower cover guide slots begin at the edge of the blade-like edge of the lower cover.
4. The non-turbulent soil sampler of claim 1, wherein the cutter, the upper cover and the lower cover are made of high strength nylon insulation material.
5. The undisturbed soil sampler of claim 1 wherein said inside walls of said cutters have embedded resistivity electrodes for measuring resistivity of soil;
an oxidation-reduction potential electrode for measuring the oxidation-reduction potential of the soil is embedded in the inner side wall of the cutter;
a natural electrode for measuring natural potential is embedded in the inner side wall of the cutter;
an instantaneous corrosion rate electrode for measuring the instantaneous corrosion rate of soil is embedded in the inner side wall of the cutter;
and a reserved electrode is embedded in the inner side wall of the cutter.
6. The non-turbulent soil sampler as recited in claim 1, further comprising a pressure assist device, wherein the pressure assist device comprises a handle, a rod, and a gland, the handle and the gland are connected by the rod, and the gland is provided with two gland guide grooves corresponding to the upper cover guide grooves.
7. A method of undisturbed soil sampling using a non-disturbed soil sampler as claimed in any one of claims 1 to 6, the method comprising:
pressing the lower edge of the square column cutter into soil until reaching a preset sampling depth;
cleaning soil outside one side surface of the square column cutter, which is vertical to the lower edge guide rail;
the knife edge-shaped edge of the lower cover faces inwards, so that the lower cover is slid into the lower cover guide groove along the lower edge guide rail, and the lower side of the cutter is sealed;
and taking out the whole cutter from the soil, so that the upper cover guide groove slides the upper cover in along the upper edge guide rail, and the upper side of the cutter is sealed.
8. A method of undisturbed soil sampling as claimed in claim 7 wherein the method further includes: and sealing and packaging the upper cover, the lower cover and the square column cutter by using glass sealant.
9. A non-disturbing soil sampling method according to claim 7 wherein the pressing of the lower edge of the square column cutter into the soil is by:
pressing a gland of the pressure assistor into the upper edge guide rail along the gland guide groove so that the cutter is connected with the pressure assistor;
and the square column cutter is pressed into soil through a handle of the pressure assist device.
10. A method of undisturbed soil sampling as claimed in claim 7 wherein the method further includes: measuring the oxidation-reduction potential of the soil through an oxidation-reduction potential electrode embedded in the cutter;
measuring a natural potential through a natural potential electrode embedded in the cutter;
and measuring the instantaneous corrosion rate of the soil by the instantaneous corrosion rate electrode embedded in the cutter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110060064.0A CN112729926A (en) | 2021-01-18 | 2021-01-18 | Non-disturbance soil sampler and soil sampling method |
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| CN202110060064.0A CN112729926A (en) | 2021-01-18 | 2021-01-18 | Non-disturbance soil sampler and soil sampling method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4946000A (en) * | 1989-06-05 | 1990-08-07 | General Motors Corporation | Undisturbed soil sampler |
| CN201540215U (en) * | 2009-11-30 | 2010-08-04 | 魏海刚 | Straight-pushing taking in situ soil sampler |
| KR20110005853U (en) * | 2009-12-07 | 2011-06-15 | 대한민국(관리부서 : 산림청 국립산림과학원장) | Soil sampler for shear test apparatus |
| CN204008189U (en) * | 2014-07-17 | 2014-12-10 | 水利部南京水利水文自动化研究所 | A kind of undisturbed soil sampling device and stationary installation |
| CN205157400U (en) * | 2015-12-07 | 2016-04-13 | 沈阳北能表面技术工程有限公司 | Instantaneous corrosion rate sensor of soil electrochemistry |
| CN107991125A (en) * | 2017-12-14 | 2018-05-04 | 南京师范大学 | A kind of convenient soil sampler of cracking |
| CN209214958U (en) * | 2018-10-21 | 2019-08-06 | 黑龙江省农业科学院佳木斯分院 | A kind of soil constant volume sampler |
| CN110320066A (en) * | 2019-08-09 | 2019-10-11 | 中国科学院新疆生态与地理研究所 | Original-state soil collecting cassette and the method for original-state soil acquisition |
| CN212180682U (en) * | 2020-03-31 | 2020-12-18 | 浙江精诚华泰科技有限公司 | Oxidation-reduction potentiometer capable of being inserted into soil |
-
2021
- 2021-01-18 CN CN202110060064.0A patent/CN112729926A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4946000A (en) * | 1989-06-05 | 1990-08-07 | General Motors Corporation | Undisturbed soil sampler |
| CN201540215U (en) * | 2009-11-30 | 2010-08-04 | 魏海刚 | Straight-pushing taking in situ soil sampler |
| KR20110005853U (en) * | 2009-12-07 | 2011-06-15 | 대한민국(관리부서 : 산림청 국립산림과학원장) | Soil sampler for shear test apparatus |
| CN204008189U (en) * | 2014-07-17 | 2014-12-10 | 水利部南京水利水文自动化研究所 | A kind of undisturbed soil sampling device and stationary installation |
| CN205157400U (en) * | 2015-12-07 | 2016-04-13 | 沈阳北能表面技术工程有限公司 | Instantaneous corrosion rate sensor of soil electrochemistry |
| CN107991125A (en) * | 2017-12-14 | 2018-05-04 | 南京师范大学 | A kind of convenient soil sampler of cracking |
| CN209214958U (en) * | 2018-10-21 | 2019-08-06 | 黑龙江省农业科学院佳木斯分院 | A kind of soil constant volume sampler |
| CN110320066A (en) * | 2019-08-09 | 2019-10-11 | 中国科学院新疆生态与地理研究所 | Original-state soil collecting cassette and the method for original-state soil acquisition |
| CN212180682U (en) * | 2020-03-31 | 2020-12-18 | 浙江精诚华泰科技有限公司 | Oxidation-reduction potentiometer capable of being inserted into soil |
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