Soil sampling device and method for soil pollution detection in engineering project construction

Abstract

The present invention discloses a soil sampling device and method for soil pollution detection in engineering project construction, and relates to the technical field of construction environment monitoring. In the present invention: it includes square tube racks, ring knife rods, top cover parts, rotating parts, external positioning parts, partition blocks and other components. Through the matching structure of the square tube rack, the ring knife rod, the top cover rack, and the rotating parts, the ring knife type soil sampling operation can be carried out conveniently. The partition block cooperates with the ring knife rod and the square tube cavity, and the partition block can be independently configured during sampling, and the soil samples of each sampling point are quickly separated and stored in the square tube cavity. In this way, there is no need to peel and store the sampled soil multiple times in the project construction area, and the frequent operation of the soil sampler in soil separation is reduced. It can not only quickly complete soil sampling at multiple locations, but also quickly realize the independent removal operation of soil samples during detection, which improves the soil sampling efficiency and convenience of soil pollution detection in engineering project construction as a whole.

Description

Technical Field

[0001] The present invention relates to the technical field of construction environment monitoring, and in particular to a soil sampling device and method for detecting soil pollution during construction of an engineering project. Background Art

[0002] During the construction of engineering projects, a large number of engineering machinery and equipment are put into use. These equipment will produce waste gas and various highly polluting leaks during operation and use. At the same time, the production and life activities of many construction workers are also continuing. These factors combined make the soil in the construction area and its surrounding areas extremely vulnerable to pollution.

[0003] When the supervisor of a construction project conducts inspections of the surrounding environment, he can usually only observe relatively obvious objects such as waste on the surface of the construction area and the surrounding area with the naked eye. Pollutants that have penetrated into the soil cannot be directly detected by the naked eye. In view of this, it is necessary to sample the soil in the construction area and its surrounding areas, and send the collected samples to a professional testing center or laboratory for soil testing.

[0004] The soil sampling devices currently used mainly include ring knife soil samplers, lever soil samplers, and spiral soil samplers. When using these soil sampling devices for soil sampling, after completing sampling at each location, the soil collected in the soil sampler needs to be peeled off and the soil needs to be properly stored manually before sampling at the next location can be carried out. This workflow makes the soil sampling operation extremely cumbersome, and the efficiency will be significantly reduced when soil sampling is carried out at multiple locations in the same area.

[0005] Therefore, when sampling at multiple locations, there is an urgent need to reduce the frequent operation of the soil sampler in soil separation, so as to achieve the goal of quickly completing soil sampling at multiple locations. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a soil sampling device and method for soil pollution detection in engineering project construction, thereby reducing the frequent operation of the soil sampler in soil separation, achieving the goal of quickly completing soil sampling at multiple locations, and at the same time, during detection, it is also possible to quickly complete the independent removal operation of soil samples.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The present invention provides a soil taking device for soil pollution detection in engineering project construction, comprising a square tube frame, a ring cutter rod rotatably mounted on the inner periphery of the square tube frame, a top cover member positioned and mounted on the top of the square tube frame, a rotating member rotatably mounted above the top cover member and fixedly connected to the upper side end of the ring cutter rod, an external positioning member sleeved on the outer periphery of the square tube frame, and a partition block screwed with the ring cutter rod and slidably mounted on the inner periphery of the square tube frame.

[0009] The interior of the square tube rack is a square tube cavity, and the ring knife rod vertically penetrates the square tube cavity. A partition cavity for storing single-time sampling soil is formed between two adjacent partition blocks in the square tube cavity. A transparent PVC plate for observing the interior of the square tube cavity is also provided on the upper side of the ring side of the square tube rack.

[0010] The top cover member includes a cover body, a mounting groove located on the bottom side of the cover body and plugged into the top of the square tube frame, and a first fixing member for fixing the connection between the cover body and the square tube frame is arranged on the ring side of the cover body. The rotating member includes a rotating column limitedly connected to the upper side end of the ring cutter rod, and a plurality of hand-rotating rods located on the ring side of the rotating column. The external positioning member includes a sliding frame that is in sliding contact with the side surface of the square tube frame ring, and a foot pedal that is rotatably mounted on the bottom position of the outer side surface of a group of opposite side plates of the sliding block. The partition block is provided with a rotating threaded hole, and the inner wall of the rotating threaded hole is provided with a threaded groove that matches the ring cutter structure of the ring cutter rod, and the ring side of the partition block is pre-engraved with different digital serial numbers.

[0011] As a preferred technical solution of the device of the present invention: an observation slot is provided on a side plate of a ring of the square tube frame, and a transparent PVC plate is installed at the position of the observation slot.

[0012] As a preferred technical solution of the device of the present invention: a positioning square column and a top screw located on the upper side of the positioning square column are provided at the top of the ring cutter rod. A vertical through hole is provided at the center of the cover body, and the positioning square column movably passes through the vertical through hole. A positioning square groove and an upper through hole located above the positioning square groove are provided at the vertical axis position of the rotating column, the positioning square column is installed in cooperation at the positioning square groove position, and the top screw is installed in cooperation at the upper through hole position. A turntable that is in rotational contact with the top side surface of the cover body is also provided at the bottom of the rotating column, and the positioning square groove passes through the turntable downward.

[0013] As a preferred technical solution of the device of the present invention: the diameter of the vertical through hole is greater than the diagonal length of the horizontal cross section of the positioning square column.

[0014] As a preferred technical solution of the device of the present invention: the top screw rod protrudes upward from the upper through hole of the rotating column, and the rod body portion of the top screw rod protruding upward from the upper through hole is installed with a top nut.

[0015] As a preferred technical solution of the device of the present invention: the cover ring side plate is provided with a transverse through hole, and the square tube frame ring side plate is provided with an inner hole groove at the upper position. The first fixing member includes a mounting rod installed at the transverse through hole and the inner hole groove, and the side end of the mounting rod is provided with a cap body and an outer rod part.

[0016] As a preferred technical solution of the device of the present invention: the interior of the sliding frame is a vertical groove whose size matches the square tube frame, a rotating mounting part is fixedly provided at the bottom of the outer side of the sliding frame, and the foot pedal is rotatably connected to the rotating mounting part.

[0017] As a preferred technical solution of the device of the present invention: assuming that the pitch of the ring cutter rod ring cutter structure is ΔL, the thickness dimension h of the partition block is greater than ΔL.

[0018] The present invention provides a method for using a soil sampling device for soil pollution detection in engineering project construction, comprising the following contents:

[0019] S1. Install the soil taking device: movably install the cutter ring rod on the top cover, and fix the rotating part to the top position of the cutter ring rod, insert the cutter ring rod into the square tube cavity of the square tube frame from the upper side, and install the top cover on the top of the square tube frame and fix it with the first fixing part, and put the external positioning part on the square tube frame from the bottom of the square tube frame.

[0020] S2. Arrive at a soil sampling position, insert the ring cutter rod into the soil, adjust the position of the square tube frame, adjust the height of the external positioning piece, rotate the foot pedal, step on the foot pedal with your foot, rotate the rotating piece, drive the ring cutter rod to rotate, and perform soil sampling.

[0021] S3. After the soil sampling at the current position is completed, a partition block is screwed to the bottom of the ring cutter rod, the rotating part is rotated, and the partition block is held by hand to align the partition block with the bottom opening of the square tube cavity. The partition block moves up along the axial direction of the ring cutter rod until the partition block completely enters the bottom opening of the square tube cavity. The soil sample on the ring cutter rod moves up synchronously with the pushing action of the partition block. When installing the partition block, the partition block serial number and the soil sampling location are manually recorded.

[0022] S4. Arrive at the next soil sampling location and repeat S2 and S3.

[0023] S5. After multiple soil sampling operations, pay attention to whether the soil in the square tube cavity reaches the transparent PVC plate position on the top of the square tube rack. If the soil in the square tube cavity has reached the transparent PVC plate position on the top of the square tube rack, the square tube rack is fully loaded and soil sampling is stopped.

[0024] S6. After bringing the soil sampling device back to the soil testing site, directly remove the first fixing part, separate the top cover from the top of the square tube frame, pull out the ring knife rod and the partition block in the square tube cavity, and peel off the separated soil samples from the ring knife rod one by one.

[0025] S7. Finally, multiple soil samples are tested and analyzed one by one.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention facilitates direct ring-knife soil sampling operations by designing the matching structure of the square tube frame, the ring knife rod, the top cover frame, and the rotating part, and designs a partition block that matches the ring knife rod and the square tube cavity. During sampling, the partition block is independently configured, and the soil sample collected each time is quickly and separately stored in the square tube cavity. At the same time, the soil sampling operation of the next sampling location can be directly carried out, and there is no need to repeatedly strip and store the sampled soil in the project construction area, which reduces the frequent operation of the soil sampler in soil separation, and achieves the goal of quickly completing soil sampling at multiple locations. At the same time, during detection, the independent removal operation of the soil sample can also be quickly completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The overall structure of the soil taking device of the present invention is shown in FIG. Figure 1 .

[0029] Figure 2 The overall structure of the soil taking device of the present invention is shown in FIG. Figure 2 .

[0030] Figure 3 It is a schematic diagram of the exploded parts of the soil taking device of the present invention.

[0031] Figure 4 It is a structural schematic diagram of the square pipe rack, ring cutter rod and partition block in the present invention.

[0032] Figure 5 It is a schematic structural diagram of the top cover member, the rotating member, the first fixing member, and the top nut in the present invention.

[0033] Among them: 1-square tube rack, 101-square tube cavity, 1011-partition cavity, 102-inner hole groove, 103-observation through groove, 104-transparent PVC plate; 2-ring knife rod, 201-positioning square column, 202-top side screw; 3-top cover, 301-cover body, 302-mounting groove, 303-vertical through hole, 304-horizontal through hole; 4-rotating member, 401-rotating column, 402-turntable, 403-positioning square groove, 404-upper through hole, 405-hand rotating rod; 5-external positioning member, 501-sliding frame, 502-vertical groove, 503-rotating mounting part, 504-foot pedal; 6-first fixing member, 601-mounting rod, 602-cap body, 603-outer rod; 7-top nut; 8-partition block, 801-rotating threaded hole. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] Embodiment 1, combined with the attached Figure 1-5 The present invention designs a soil sampling device for soil pollution detection in engineering project construction, and the specific structure content is as follows:

[0036] Component 1, square tube frame 1: The internal structure is a square tube cavity 101, which is the core space of the entire device. The ring knife rod 2, partition block 8 and other components all work together inside it, and it is also a temporary storage channel for soil samples. An observation slot 103 is opened on the upper side of the ring side for placing a transparent PVC plate 104, so that the situation inside the square tube cavity 101 can be intuitively observed, including the position of the partition block 8, the progress of soil sampling, etc. There are two design options for the inner hole groove 102 on the upper side of the ring side plate: one is a threaded groove for installing the first fixing member 6 in a threaded manner; the other is a magnetic blind hole that can be matched with the magnetic first fixing member 6.

[0037] Component 2, ring cutter bar 2: vertically passes through the square tube cavity 101, and the positioning square column 201 and the top screw 202 are key structures connected to other components. The pitch of the ring cutter structure of the ring cutter bar 2 is ΔL, which is closely related to the movement of the partition block 8 and soil sampling.

[0038] Component 3, top cover 3: It consists of a cover body 301 and a mounting groove 302 on the bottom side. The mounting groove 302 is plugged into the top of the square tube frame 1 to ensure that the top cover 3 is firmly connected to the square tube frame 1. The vertical through hole 303 in the center of the cover body 301 is for the positioning square column 201 to pass through. Its diameter is larger than the diagonal length of the horizontal section of the positioning square column 201 to ensure that the positioning square column 201 can move smoothly. The horizontal through hole 304 of the ring side plate of the cover body 301 is used to install the first fixing member 6 to achieve the fixing of the top cover 3 and the square tube frame 1.

[0039] Component 4, rotating member 4: The rotating column 401 is limitedly connected with the upper side end of the ring cutter rod 2, and the positioning square groove 403 and the upper through hole 404 at the vertical axis position cooperate with the positioning square column 201 and the top screw 202 of the ring cutter rod 2 respectively, so that the rotating member 4 can effectively drive the ring cutter rod 2 to rotate. The rotating disk 402 at the bottom of the rotating column 401 is in rotational contact with the top side of the cover body 301 to reduce the friction during rotation, and multiple hand-rotating rods 405 facilitate manual rotation by the operator.

[0040] Component 5, external positioning member 5: The sliding frame 501 is in sliding contact with the side of the square tube frame 1 through the internal vertical groove 502, and can move up and down around the square tube frame 1 to adjust the position. The rotating mounting part 503 at the bottom of the outer side of the sliding frame 501 is rotatably connected to the pedal 504, and the position of the sliding frame 501 can be controlled by rotating the pedal 504, thereby stabilizing the placement of the device at the sampling point.

[0041] Part 6, partition block 8: It is provided with a rotating threaded hole 801, and its inner wall thread groove is adapted to the ring knife structure of the ring knife rod 2, so that the partition block 8 can slide up and down along it when the ring knife rod 2 rotates. The digital serial number marking on the ring side of the partition block 8 is used to distinguish different samples, and the partition cavity 1011 formed between adjacent partition blocks 8 is used to store soil sampled at a single time. Its thickness dimension h>ΔL ensures that different sampling areas can be effectively isolated when the ring knife rod 2 rotates.

[0042] In addition, the component installation and connection relationship between the above components:

[0043] After the positioning square column 201 at the top of the ring cutter rod 2 passes through the vertical through hole 303 of the cover body 301 of the top cover part 3, it is precisely installed in the positioning square groove 403 of the rotating column 401 of the rotating part 4, and the top side screw 202 passes through the upper through hole 404 of the rotating column 401 and protrudes upward. The top nut 7 is installed on the protruding part, so as to achieve a stable limiting connection between the rotating part 4 and the ring cutter rod 2. At the same time, the turntable 402 at the bottom of the rotating column 401 maintains a good rotational contact relationship with the top side surface of the cover body 301.

[0044] The fixing of the cover body 301 of the top cover member 3 and the square tube frame 1 is achieved through the first fixing member 6. When the inner hole groove 102 is a threaded groove, the installation rod 601 of the first fixing member 6 is a threaded rod, which is screwed into the inner hole groove 102 to complete the installation; when the inner hole groove 102 is a magnetic blind hole, the installation rod 601 is a magnetic rod, which is directly inserted into the inner hole groove 102 for magnetic matching installation. The cap body 602 at the side end of the installation rod 601 (when threaded installation is adopted, the hexagonal cap body is easy to operate) and the outer rod part 603 (when magnetic installation is adopted, it is convenient to plug and unplug) provide convenience for the installation process.

[0045] The partition block 8 is screwed to the ring cutter rod 2 by means of the rotating threaded hole 801 , so that it can slide up and down smoothly in the square tube cavity 101 of the square tube frame 1 , and achieve cooperative work with the ring cutter rod 2 .

[0046] Embodiment 2: The present invention provides a method for using a soil sampling device for detecting soil pollution during construction of an engineering project. The specific steps are as follows:

[0047] 1. Install the soil taking device:

[0048] The ring cutter bar 2 is movably mounted on the top cover 3 , and then the rotating member 4 is fixed to the top end of the ring cutter bar 2 .

[0049] Insert the cutter ring rod 2 into the square tube cavity 101 of the square tube frame 1 from top to bottom, then install the top cover 3 on the top of the square tube frame 1 and fix it with the first fixing member 6.

[0050] The outer positioning member 5 is put on the square tube frame 1 from the bottom thereof, and the installation of the soil taking device is completed.

[0051] 2. Soil sampling process:

[0052] After reaching the first soil sampling position, the ring cutter rod 2 is inserted into the soil, and then the position of the square pipe rack 1 is adjusted, and the height of the external positioning member 5 is adjusted to a suitable position.

[0053] The foot pedal 504 is rotated, and then the foot pedal 504 is stepped on to maintain stability, and then the rotating member 4 is rotated, and the rotating member 4 drives the ring cutter rod 2 to rotate, and the soil sampling operation is started.

[0054] 3. Processing after sampling at a single sampling point:

[0055] When the soil sampling at the current position is completed, a partition block 8 is screwed to the bottom of the ring cutter rod 2 .

[0056] Rotate the rotating member 4, and hold the partition block 8 by hand to align the partition block 8 with the bottom opening of the square tube cavity 101, and then move the partition block 8 upward along the axial direction of the ring cutter rod 2 until the partition block 8 completely enters the bottom opening of the square tube cavity 101. At this time, the soil sample on the ring cutter rod 2 will move upward synchronously under the push of the partition block 8. When installing the partition block 8, the serial number of the partition block 8 and the soil sampling location should be manually recorded.

[0057] 4. Multi-sampling point operation:

[0058] Arrive at the next soil sampling location and repeat the soil sampling process in step 2 and the processing steps after the sampling of a single sampling point in step 3.

[0059] 5. Stop sampling operation:

[0060] After multiple soil sampling operations, it is necessary to closely observe whether the soil in the square tube cavity 101 reaches the position of the transparent PVC plate 104 on the top of the square tube frame 1.

[0061] If the soil in the square tube cavity 101 has reached the transparent PVC plate 104 on the top of the square tube rack 1, it means that the square tube rack 1 is fully loaded, and the soil sampling operation should be stopped at this time.

[0062] 6. Sample processing and testing:

[0063] After the soil taking device is brought back to the soil testing site, the first fixing member 6 is directly removed to separate the top cover member 3 from the top of the square tube frame 1 .

[0064] The ring cutter rod 2 and the partition block 8 in the square tube cavity 101 are pulled out, and then the separated soil samples are peeled off from the ring cutter rod 2 one by one.

[0065] Finally, multiple soil samples were tested and analyzed one by one to complete the detection of soil pollution during the construction of the project.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A soil sampling device for soil pollution detection in engineering project construction, characterized in that: It comprises a square tube frame (1), a ring cutter rod (2) rotatably mounted on the inner periphery of the square tube frame (1), a top cover member (3) positionally mounted on the top of the square tube frame (1), a rotating member (4) rotatably mounted above the top cover member (3) and positionally fixedly connected to the upper side end of the ring cutter rod (2), an outer positioning member (5) sleeved on the outer periphery of the square tube frame (1), and a partition block (8) screwed to the ring cutter rod (2) and slidably mounted on the inner periphery of the square tube frame (1); The interior of the square tube frame (1) is a square tube cavity (101), the ring knife rod (2) vertically penetrates the square tube cavity (101), and a partition cavity (1011) for storing single-time soil sampling is formed between two adjacent partition square blocks (8) in the square tube cavity (101), and a transparent PVC plate (104) for observing the interior of the square tube cavity (101) is also arranged on the upper side of the ring side of the square tube frame (1); The top cover (3) comprises a cover body (301), a mounting groove (302) located at the bottom side of the cover body (301) and plugged into the top of the square tube frame (1), and a first fixing member (6) for fixing the connection between the cover body (301) and the square tube frame (1) is arranged on the ring side of the cover body (301); The rotating member (4) comprises a rotating column (401) which is positionally connected to the upper side end of the ring knife rod (2), and a plurality of hand-rotating rods (405) located on the ring side of the rotating column (401); The outer positioning member (5) comprises a sliding frame (501) in sliding contact with the side surface of the square tube frame (1), and a foot pedal (504) rotatably mounted on the sliding frame (501) at the bottom of a group of outer side surfaces of opposite side plates; The partition block (8) is provided with a rotating threaded hole (801), the inner wall of the rotating threaded hole (801) is provided with a threaded groove that matches the ring knife structure of the ring knife rod (2), and the ring side of the partition block (8) is pre-engraved with different digital serial numbers.

2. The soil sampling device for soil pollution detection in construction projects according to claim 1 is characterized by: An observation slot (103) is provided on a ring side plate of the square tube frame (1), and the transparent PVC plate (104) is installed at the position of the observation slot (103).

3. The soil sampling device for soil pollution detection in construction projects according to claim 1 is characterized by: The top of the ring cutter rod (2) is provided with a positioning square column (201) and a top screw rod (202) located on the upper side of the positioning square column (201); A vertical through hole (303) is provided at the center of the cover body (301), and the positioning square column (201) movably passes through the vertical through hole (303); The rotating column (401) is provided with a positioning square groove (403) and an upper through hole (404) located above the positioning square groove (403) at the vertical axis position; the positioning square column (201) is installed in cooperation with the positioning square groove (403); and the top side screw rod (202) is installed in cooperation with the upper through hole (404); The bottom of the rotating column (401) is also provided with a rotating disk (402) that is in rotational contact with the top side surface of the cover body (301), and the positioning square groove (403) passes through the rotating disk (402) downwards.

4. The soil sampling device for soil pollution detection in construction projects according to claim 3 is characterized by: The diameter of the vertical through hole (303) is greater than the diagonal length of the horizontal cross section of the positioning square column (201).

5. The soil sampling device for soil pollution detection in construction projects according to claim 3 is characterized by: The top screw rod (202) protrudes upwards from the upper through hole (404) of the rotating column (401), and a top nut (7) is installed on the rod body portion of the top screw rod (202) protruding upwards from the upper through hole (404).

6. The soil sampling device for soil pollution detection in construction projects according to claim 1 is characterized by: The cover body (301) is provided with a transverse through hole (304) on the ring side plate, and the square tube frame (1) is provided with an inner hole groove (102) on the upper side of the ring side plate; The first fixing member (6) comprises a mounting rod (601) mounted at the positions of the transverse through hole (304) and the inner hole groove (102), and a cap body (602) and an outer rod portion (603) are provided at the side end of the mounting rod (601).

7. The soil sampling device for soil pollution detection in construction projects according to claim 1 is characterized by: The interior of the sliding frame (501) is a vertical slot (502) whose size matches that of the square tube frame (1). A rotatable mounting portion (503) is fixedly provided at the bottom of the outer side surface of the sliding frame (501), and the foot pedal (504) is rotatably connected to the rotatable mounting portion (503).

8. The soil sampling device for soil pollution detection in construction projects according to claim 1 is characterized by: Assuming that the pitch of the ring cutter structure of the ring cutter rod (2) is ΔL, the thickness dimension h of the partition block (8) is greater than ΔL.

9. A method for using a soil sampling device for soil pollution detection in construction projects, characterized in that: A soil sampling device for soil pollution detection in an engineering project construction using any one of claims 1 to 8 comprises the following contents: S1. Installing the soil taking device: movably installing the ring cutter bar (2) on the top cover (3), and fixing the rotating member (4) on the top position of the ring cutter bar (2), inserting the ring cutter bar (2) into the square tube cavity (101) of the square tube frame (1) from the upper side, and installing the top cover (3) on the top of the square tube frame (1) and fixing it with the first fixing member (6), and sleeve the external positioning member (5) on the square tube frame (1) from the bottom of the square tube frame (1); S2. Arrive at a soil sampling position, insert the ring cutter bar (2) into the soil, adjust the position of the square tube frame (1), adjust the height of the external positioning member (5), rotate the foot pedal (504), step on the foot pedal (504), rotate the rotating member (4), drive the ring cutter bar (2) to rotate, and perform soil sampling; S3. After the soil sampling at the current position is completed, a partition block (8) is screwed to the bottom of the ring cutter rod (2), the rotating member (4) is rotated, and the partition block (8) is supported by hand to align the partition block (8) with the bottom opening of the square tube cavity (101), and the partition block (8) is moved up along the axial direction of the ring cutter rod (2) until the partition block (8) completely enters the bottom opening of the square tube cavity (101), and the soil sample on the ring cutter rod (2) is synchronously moved up with the pushing action of the partition block (8); Wherein, when installing the partition block (8), the serial number of the partition block (8) and the soil sampling location are manually recorded; S4. Arrive at the next soil sampling location and repeat S2 and S3; S5. After multiple soil sampling operations, pay attention to whether the soil in the square tube cavity (101) reaches the transparent PVC plate (104) at the top of the square tube rack (1). If the soil in the square tube cavity (101) has reached the transparent PVC plate (104) at the top of the square tube rack (1), the square tube rack (1) is fully loaded and soil sampling is stopped; S6. After the soil sampling device is brought back to the soil testing site, the first fixing member (6) is directly removed, the top cover member (3) is separated from the top of the square tube frame (1), the ring knife rod (2) and the partition block (8) in the square tube cavity (101) are pulled out, and the separated soil samples are peeled off from the ring knife rod (2) one by one; S7. Finally, multiple soil samples are tested and analyzed one by one.

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