A sampling device and sampling method for quick and easy soil collection in soil monitoring wells

Abstract

The present invention discloses a sampling device and a sampling method for quick and easy soil collection in a soil monitoring well, which relates to the technical field of soil monitoring, and includes an inner tube and a casing. The casing is arranged in the soil monitoring well, and the inner tube is arranged in the casing. An inner tube is added to the original soil monitoring well, and the inner tube is a pipe segment assembly structure that can be screwed in multiple sections, and the pipe wall has multiple through holes for easy penetration. The inner tube is backfilled with uncontaminated original soil and buried in the soil pollution monitoring well. Each time the soil is sampled, no sampling tools are required. It is only necessary to manually lift the inner tube, unscrew the pipe segment of a certain depth, and pour out the soil inside for collection. After the collection is completed, the section of soil is filled again and put back into the inner tube for the next sampling test.

Description

Technical Field

[0001] The invention relates to the technical field of soil monitoring, and in particular to a sampling device and a sampling method for quickly and easily collecting soil in a soil monitoring well. Background Art

[0002] The collection of soil samples is an important part of soil testing. Collecting representative samples is a prerequisite for truthfully reflecting the objective situation. Chemical industrial parks belong to the type of soil environmental assessment and monitoring for construction projects. Soil pollution observation wells must be set up in the early stages of the establishment of chemical industrial parks. The existing commonly established soil pollution observation wells are mostly located near pre-buried pipelines or important leakage inflection points. The outer wall is a rubber product of a certain thickness, and the bottom of the pipeline is backfilled with soil. When sampling soil samples, use sampling tools such as Luoyang shovels to collect soil layers of a certain depth and bring them back to the laboratory for testing and analysis.

[0003] The existing soil pollution monitoring wells are set up because the backfill soil at the bottom is not fluid. Therefore, after sampling at the bottom, a section of the bottom soil will be missing, and it will not recover on its own, which means that there will be a gap at a certain depth. This result means that the next soil sampling can only be continued on the basis of the last depth. The test comparison of soil samples at different depths lacks certain credibility and persuasiveness. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a sampling device and a sampling method for quick and easy soil collection in a soil monitoring well, so as to facilitate soil backfilling and sampling.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The invention provides a sampling device for quickly and easily collecting soil in a soil monitoring well. The device comprises an inner tube and a casing. The casing is arranged in the soil monitoring well, and the inner tube is arranged in the casing.

[0007] Optionally, the outer diameter of the inner tube is less than or equal to the inner diameter of the sleeve.

[0008] Optionally, a plurality of first through holes are provided on the tube wall of the inner tube.

[0009] Optionally, the inner tube includes a plurality of tube segments, and adjacent tube segments are connected by threads.

[0010] Optionally, the pipe section is 50 cm long.

[0011] Optionally, the outer diameter of the inner tube is 6 cm and the length of the inner tube is 2 m.

[0012] Optionally, a plurality of second through holes are provided on the tube wall of the sleeve.

[0013] Optionally, backfill soil is provided between the casing and the soil monitoring well.

[0014] Optionally, the top of the inner tube is connected to the bottom end of a chain, a hook is provided at the top of the chain, and the hook is connected to the wellhead of the soil monitoring well.

[0015] The present invention also discloses a sampling method of the above-mentioned soil monitoring well quick and easy soil collection sampling device, comprising the following steps:

[0016] Step 1: Place the casing; first design and construct the soil monitoring well, and place the casing in the soil monitoring well; the casing is in the middle of the soil monitoring well, the burial depth is determined according to the actual design, and the outside of the casing is fixed by backfill soil;

[0017] Step 2: placing the inner tube; the inner tube is arranged inside the casing, multiple tube sections are screwed together, and then the inner tube is directly placed inside the casing;

[0018] Step 3: Connect: Hang the chain hook at one end of the inner tube on the side wall below the manhole cover to freely take and place the inner tube;

[0019] Step 4: Sampling: Open the manhole cover, pull the chain, extract the inner tube, unscrew the corresponding tube section according to the required sampling depth, pour out the sample, and complete the sampling work;

[0020] Step 5, backfilling: After sampling is completed, backfill the empty pipe section with uncontaminated soil, assemble the inner pipe, put the inner pipe back into the casing, fix the chain, and cover the manhole.

[0021] Compared with the prior art, the present invention has achieved the following technical effects:

[0022] The sampling device and sampling method for quick and easy soil collection in the soil monitoring well of the present invention are as follows: an inner tube is added to the original soil monitoring well; the inner tube is a pipe segment assembly structure that can be screwed in multiple sections, and the pipe wall has multiple through holes for easy penetration; the inner tube is backfilled with uncontaminated original soil and buried in the soil pollution monitoring well; each time the soil is sampled, no sampling tools are required, and only the inner tube needs to be manually lifted, the pipe segment of a certain depth is unscrewed, and the soil inside is poured out for collection. After the collection is completed, the section of soil is filled again and put back into the inner tube for the next sampling test. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of a sampling device for quick and easy soil collection in a soil monitoring well of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the inner tube in the sampling device for quick and easy soil collection in a soil monitoring well of the present invention.

[0026] Explanation of the accompanying drawings: 1. Ground layer; 2. Manhole cover; 3. Hook; 4. Chain; 5. Inner tube; 6. First through hole; 7. Casing; 8. Second through hole; 9. Backfill soil; 10. Threaded connection. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1 and 2 As shown, this embodiment provides a sampling device for quick and easy soil collection in a soil monitoring well, comprising an inner tube 5 and a casing 7. The casing 7 is arranged in the soil monitoring well, and the inner tube 5 is arranged in the casing 7.

[0029] In this specific embodiment, the outer diameter of the inner tube 5 is less than or equal to the inner diameter of the sleeve 7, so that the inner tube 5 can be freely taken up and down, but the outer wall of the inner tube 5 is preferably as close to the inner wall of the sleeve 7 as possible.

[0030] A plurality of first through holes 6 are provided on the wall of the inner tube 5 .

[0031] The inner tube 5 includes a plurality of tube sections, and adjacent tube sections are connected by threads. The tube section is 50 cm long. The outer diameter of the inner tube 5 is 6 cm, and the inner tube 5 is 2 m long. The diameter and length of the inner tube 5 can also be selected from other sizes, so that after the inner tube 5 is filled with uncontaminated original soil, one or two people can freely extract it. The total weight of the inner tube 5 filled with backfill soil 9 is preferably not more than 15 kg.

[0032] The wall of the casing 7 is provided with a plurality of second through holes 8. Backfill soil 9 is provided between the casing 7 and the soil monitoring well. The casing 7 is fixed in the soil monitoring well by the backfill soil 9 without any other structure.

[0033] The top of the inner tube 5 is connected to the bottom of a chain 4, and a hook 3 is provided at the top of the chain 4, and the hook 3 is connected to the wellhead of the soil monitoring well. The inner tube 5 can be lifted and lowered by pulling the chain 4.

[0034] Embodiment 2:

[0035] This embodiment provides a sampling method of the sampling device for quick and easy soil collection in a soil monitoring well in Embodiment 1, comprising the following steps:

[0036] Step 1, placing the casing 7; first design and construct the soil monitoring well, and place the casing 7 into the soil monitoring well; the casing 7 is located in the middle of the soil monitoring well, the burial depth is determined according to the actual design, and the outside of the casing 7 is fixed by backfill soil 9;

[0037] Step 2: Place the inner tube 5; the inner tube 5 is placed inside the casing 7, multiple tube sections are screwed together, and then the inner tube 5 is directly placed inside the casing 7;

[0038] Step three, connection; hang the chain 4 hook 3 at one end of the inner tube 5 on the side wall below the manhole cover 2 to freely take and place the inner tube 5;

[0039] Step 4, sampling; open the manhole cover 2, pull the chain 4, extract the inner tube 5, and according to the sampling depth required, unscrew the corresponding pipe section, pour out the sample, and complete the sampling work; for example, if a soil sample at 1.5 meters is required, open the manhole cover 2, pull the chain 4, extract the inner tube 5, twist the third section of the spiral tube, pour out the sample, and complete the sampling work;

[0040] Step 5, backfilling: After the sampling is completed, the uncontaminated soil is refilled in the emptied pipe section, the inner pipe 5 is assembled, the inner pipe 5 is put back into the casing 7, the chain 4 is fixed, and the manhole cover 2 is covered.

[0041] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0042] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A sampling device for quick and easy soil collection in a soil monitoring well, characterized in that: It comprises an inner tube and a casing, wherein the casing is arranged in a soil monitoring well, and the inner tube is arranged in the casing; The outer diameter of the inner tube is less than or equal to the inner diameter of the sleeve; A plurality of first through holes are arranged on the wall of the inner tube; The inner tube includes a plurality of tube segments, and adjacent tube segments are connected by threads; A plurality of second through holes are arranged on the tube wall of the sleeve; The inner tube is backfilled with uncontaminated original soil.

2. The sampling device for quick and easy soil collection in a soil monitoring well according to claim 1 is characterized in that: The pipe section is 50 cm long.

3. The sampling device for quick and easy soil collection in a soil monitoring well according to claim 1 is characterized in that: The outer diameter of the inner tube is 6 cm, and the length of the inner tube is 2 m.

4. The sampling device for quick and easy soil collection in a soil monitoring well according to claim 1 is characterized in that: Backfill soil is arranged between the casing and the soil monitoring well.

5. The sampling device for quick and easy soil collection in a soil monitoring well according to claim 1 is characterized in that: The top of the inner tube is connected to the bottom end of a chain, and a hook is provided at the top of the chain, and the hook is connected to the wellhead of the soil monitoring well.

6. The sampling method of the sampling device for quick and easy soil collection in soil monitoring wells according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: Place the casing; first design and construct the soil monitoring well, and place the casing in the soil monitoring well; the casing is in the middle of the soil monitoring well, the burial depth is determined according to the actual design, and the outside of the casing is fixed by backfill soil; Step 2: placing the inner tube; the inner tube is arranged inside the casing, multiple tube sections are screwed together, and then the inner tube is directly placed inside the casing; Step 3: Connect: Hang the chain hook at one end of the inner tube on the side wall below the manhole cover to freely take and place the inner tube; Step 4: Sampling: Open the manhole cover, pull the chain, extract the inner tube, unscrew the corresponding tube section according to the required sampling depth, pour out the sample, and complete the sampling work; Step 5, backfilling: After sampling is completed, backfill the empty pipe section with uncontaminated soil, assemble the inner pipe, put the inner pipe back into the casing, fix the chain, and cover the manhole.

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