Geological exploration device and exploration method thereof

Abstract

The invention relates to the technical field of geological exploration, and provides a geological exploration device and an exploration method thereof.The geological exploration device comprises a sampling pipe, the sampling pipe enters underground for sampling, a mounting frame is arranged above the sampling pipe, a push plate is arranged in the mounting frame in a lifting mode, and the push plate pushes out a soil sample from the interior of the sampling pipe; the soil sampling device is characterized by further comprising a cutting line which is vertically arranged in the sampling pipe, horizontally moves in the sampling pipe and is used for cutting the soil sample in the soil sample along a ring shape and cutting the cylindrical soil sample into an outer ring part and an inner core part; the cutting line horizontally moves in the sampling pipe, is vertically lifted and is used for cutting a soil sample. By means of the technical scheme, the problems that in the prior art, the periphery of a soil sample does not have sampling analysis value, and an internal soil sample is prone to being affected are solved.

Description

Technical Field

[0001] The present invention relates to the field of geological prospecting technology, and in particular to a geological prospecting device and a prospecting method thereof. Background Art

[0002] When conducting geological exploration, it is necessary to use a soil sampling device to sample the underground, and the soil samples obtained are used for geological analysis.

[0003] The existing soil sampling device uses a sampling tube to rotate downward or press vertically into the ground, and the soil sample is retained inside the sampling tube, and then the soil sample is pushed out from the sampling tube to complete the sampling. However, whether it is rotating drilling or vertically pressing into the ground, the sampling tube will cause a certain degree of compression on the soil, especially the part where the soil sample contacts the inner wall of the sampling tube, which is affected by pressure, changing the internal density and soil distribution information; in the process of the sampling tube descending into the soil, the lower end of the sampling tube is likely to bring the upper soil to the deep layer, resulting in inaccurate soil stratification information inside the sampling tube near the inner wall of the sampling tube; when the soil sample in the sampling tube is pushed out, the friction with the inner wall of the sampling tube causes the outer soil layer of the soil sample to be broken and chaotic, and at the same time, the outer soil may involve the inner soil, affecting the distribution of the soil layer inside the soil sample, affecting the accuracy of the sampling information, and causing sampling failure.

[0004] Therefore, in the existing soil sampling technology, the problem that the periphery of the soil sample has no sampling and analysis value and is easy to affect the internal soil sample needs to be solved. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a geological exploration device and an exploration method thereof in view of the above-mentioned technical deficiencies, which solves the problem that the periphery of the soil sample has no sampling and analysis value and is easy to affect the internal soil sample.

[0006] The technical solution adopted by the present invention is: to provide a geological exploration device, including a sampling tube, the sampling tube enters underground to take samples, a mounting frame is arranged above the sampling tube, a push plate is arranged inside the mounting frame for lifting, and the push plate pushes the soil sample out of the sampling tube; it is characterized by further comprising:

[0007] The cutting line is vertically arranged inside the sampling tube and horizontally movably arranged inside the sampling tube, and is used for cutting the soil sample along a ring inside the soil sample, so as to cut the cylindrical soil sample into an outer ring part and an inner core part.

[0008] To further optimize the technical solution, the cutting line moves horizontally inside the sampling tube and is vertically lifted and lowered to cut the soil sample.

[0009] Further optimization of this technical solution also includes:

[0010] A mounting plate is arranged to move horizontally relative to the sampling tube, and the mounting plate moves closer to or farther from the sampling tube after movement;

[0011] A slide seat is horizontally movably arranged on the mounting plate, and the moving direction of the slide seat is perpendicular to the moving direction of the mounting plate;

[0012] The support frame is vertically arranged on the slide, the upper part of the support frame is located above the sampling tube and is used to connect with the upper end of the cutting line, the lower part of the support frame is located below the sampling tube and is used to connect with the lower end of the cutting line, and the support frame moves with the slide to drive the cutting line to cut the soil sample.

[0013] Further optimization of this technical solution also includes:

[0014] There are two threaded caps, one threaded cap is provided at each of the upper and lower ends of the cutting line;

[0015] An upper seat, arranged on the upper part of the support frame;

[0016] An upper plate is lifted and arranged in the upper seat, and an upper threaded rod is provided at the lower end of the upper plate, and the upper threaded rod is used for threaded connection with the threaded cap at the upper end of the cutting line;

[0017] A lower seat, arranged at the lower part of the support frame;

[0018] The lower plate is lifted and arranged in the lower seat, and the upper end of the lower plate is provided with a lower threaded rod, and the lower threaded rod is used for threaded connection with the threaded cap at the lower end of the cutting line.

[0019] Further optimization of this technical solution also includes:

[0020] A linear reciprocating drive unit, disposed in the upper seat, for driving the upper plate to rise and fall;

[0021] A tension spring is arranged in the lower seat, one end of which acts on the lower seat and the other end of which acts on the lower plate, and is used to provide a force for straightening the cutting line.

[0022] Further optimization of this technical solution also includes:

[0023] A transmission screw is rotatably arranged on the mounting plate, and the transmission screw is threadedly connected to the slide seat to drive the slide seat to move horizontally.

[0024] To further optimize the technical solution, the inner wall of the sampling tube has a vertically arranged accommodating groove for accommodating the cutting line, the upper part of the sampling tube has an upper plug hole, the upper plug hole is used to accommodate the threaded cap at the upper end, and the lower end of the sampling tube has a lower plug hole, the lower plug hole is used to accommodate the threaded cap at the lower end.

[0025] A prospecting method is also proposed, which uses the geological prospecting device to take soil samples, and the steps include:

[0026] In the first step, the cutting line is attached to the inner wall of the sampling tube, the sampling tube is lowered and extended into the ground for sampling, a soil sample is stored inside the sampling tube, and then the sampling tube is raised above the ground;

[0027] In the second step, after the cutting line moves radially in the sampling tube, it moves away from the inner wall of the sampling tube, and then the cutting line moves in a circular shape to cut the soil sample in the sampling tube into the outer ring part and the inner core part;

[0028] In the third step, the push plate descends, pushes the cut soil sample out of the sampling tube, peels off the outer ring, and retains the inner core as the sample, completing the sampling.

[0029] The beneficial effects of the present invention are:

[0030] 1. The cutting line can cut the soil sample in the sampling tube into an outer ring and an inner core. The inner core is finally used as a sample and divided into two parts, inner and outer. The direct connection between the outer ring and the inner core can be cut off. When the soil sample is pushed out, the outer ring is more susceptible to damage, and the damage is not easily transmitted to the inside, which can reduce the involvement of the inner core and ensure the accuracy of the soil layer information of the inner core.

[0031] 2. The cutting line is very thin. When cutting, the soil is squeezed less, and the information of the inner core soil layer is retained more accurately. At the same time, the cutting line is vertically set in the sampling tube. There is no long-distance movement in the vertical direction, and the surface soil will not be brought to the deep layer, reducing the confusion of soil layers at different depths.

[0032] 3. Cutting inside the sampling tube can keep the soil sample more stable as a whole in the sampling tube compared to cutting outside the sampling tube. After cutting, the impact on the inside of the soil sample during the pushing process is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the present invention;

[0034] Figure 2 It is a schematic diagram of the structure of the present invention when cutting a soil sample from a side view;

[0035] Figure 3 It is a schematic diagram of the structure of the present invention viewed from above;

[0036] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at the AA position;

[0037] Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at point a in the middle;

[0038] Figure 6 For the present invention Figure 4 The schematic diagram of the local enlarged structure at b in the middle;

[0039] Figure 7 It is a schematic diagram of the internal structure of the sampling tube of the present invention;

[0040] Figure 8 It is a schematic diagram of the external structure of the sampling tube of the present invention;

[0041] Fig. 9 It is a schematic diagram of the soil sample structure of the present invention;

[0042] Explanation of marks in the figure: 1. Sampling tube; 101. Mounting frame; 1011. Avoidance; 102. Push plate; 103. Receiving groove; 104. Upper socket; 105. Lower socket; 2. Cutting line; 201. Threaded cap; 3. Mounting plate; 301. Transmission screw; 4. Sliding seat; 5. Support frame; 6. Upper seat; 601. Upper plate; 602. Upper threaded rod; 603. Linear reciprocating drive unit; 7. Lower seat; 701. Lower plate; 702. Lower threaded rod; 703. Tension spring; 8. Soil sample; 801. Outer ring; 802. Inner core; 9. Fixing frame. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0045] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0047] like Figure 1-9 As shown, a geological prospecting device and an exploration method thereof include a sampling tube 1, the sampling tube 1 enters underground for sampling, a mounting frame 101 is arranged above the sampling tube 1, a push plate 102 is arranged inside the mounting frame 101 for lifting, and the push plate 102 pushes the soil sample 8 out of the sampling tube 1; and also include: a cutting line 2, which is vertically arranged inside the sampling tube 1 and horizontally moved inside the sampling tube 1, and is used to cut the soil sample 8 along a ring inside the soil sample 8, and cut the cylindrical soil sample 8 into an outer ring part 801 and an inner core part 802.

[0048] When in use, the sampling tube 1 descends into the underground. The sampling tube 1 can be raised and lowered on a fixed frame 9. The fixed frame 9 is erected on the ground. The sampling tube 1 can be raised and lowered by existing technologies such as hydraulic component driving. The mounting frame 101 can be fixed on the sampling tube 1 and raised and lowered synchronously. The push plate 102 can be raised and lowered by a linear drive unit such as a hydraulic cylinder built into the mounting frame 101.

[0049] The cutting line 2 is built into the sampling tube 1 and fits the inner wall of the sampling tube 1. It descends into the ground synchronously with the sampling tube 1. The soil sample 8 is retained inside the sampling tube 1 and then rises back to the ground. Then the cutting line 2 can be used to cut the soil sample 8, and the soil sample 8 is divided into an inner and outer side, an annular outer ring part 801 and a columnar inner core part 802. Then the push plate 102 pushes the soil sample 8 out of the sampling tube 1 as a whole. During the pushing process, the outer ring part 801 is damaged. After it is completely pushed out, it can be manually cleaned, etc., and the outer ring part 801 is completely separated from the inner core part 802, and the inner core part 802 is retained as a sample. When the push plate 102 pushes the soil sample 8, the cutting line 2 can be moved out together with the soil sample 8.

[0050] Before entering the underground, the cutting line 2 is fitted to the inner wall of the sampling tube 1. The lower end of the cutting line 2 can be fixed to the lower end of the sampling tube 1 by plugging or squeezing in a conventional fixing manner, or the cutting line 2 can be bypassed around the lower end of the sampling tube 1 and placed in a "U" shape. When descending, the cutting line 2 will not move out. Similarly, the cutting line 2 can also be annular and sleeved on the side wall of the sampling tube 1. It has more redundancy to facilitate later movement and cutting. When the soil sample 8 is moved out of the sampling tube 1, the cutting line 2 is close to the side and will not move out of the sampling tube 1.

[0051] Furthermore, the cutting line 2 moves horizontally and is vertically lifted inside the sampling tube 1 to cut the soil sample 8 .

[0052] When in use, the cutting line 2 located inside the sampling tube 1 moves horizontally in a circular trajectory, and moves vertically by reciprocating or shaking up and down. The up and down movement distance is short and the frequency can be high, which is conducive to faster cutting of the soil sample 8. The cutting efficiency is high, the damage to the soil is small, and the up and down movement distance is very short, and the surface soil will not be brought into the deep layer.

[0053] Furthermore, it also includes: a mounting plate 3, which is arranged to move horizontally relative to the sampling tube 1, and the mounting plate 3 moves closer to or away from the sampling tube 1; a slide 4, which is arranged to move horizontally on the mounting plate 3, and the moving direction of the slide 4 is perpendicular to the moving direction of the mounting plate 3; a support frame 5, which is vertically arranged on the slide 4, the upper part of the support frame 5 is located above the sampling tube 1 and is used to connect with the upper end of the cutting line 2, the lower part of the support frame 5 is located below the sampling tube 1 and is used to connect with the lower end of the cutting line 2, the support frame 5 moves with the slide 4, and is used to drive the cutting line 2 to cut the soil sample 8.

[0054] When in use, the slide 4 can drive the support frame 5 to move, so as to realize the movement of the cutting path of the cutting line 2. The upper and lower ends of the cutting line 2 are detachably connected to the support frame 5, and the mounting plate 3 is close to the sampling tube 1 to move the upper and lower ends of the support frame 5 to the sampling tube 1. After the cutting line 2 and the end of the support frame 5 are connected, the cutting line 2 is straightened and tightened in the vertical direction. Initially, the cutting line 2 is attached to the inner wall of the sampling tube 1, and the mounting plate 3 is moved close to the sampling tube 1, thereby driving the cutting line 2 to move away from the inner wall of the sampling tube 1 by a certain distance, and then the mounting plate 3 and the slide 4 move at the same time, so that the cutting line 2 can move along a circular trajectory, and the soil sample 8 is divided. After the soil sample 8 is divided into the outer ring part 801 and the inner core part 802, the mounting plate 3 is away from the sampling tube 1, so that the cutting line 2 is reset to fit the inner wall of the sampling barrel, and then the push plate 102 pushes the soil sample 8 out.

[0055] The support frame 5 may be in a “]” shape, so as to facilitate driving the cutting line 2 to move in the sampling barrel from the outside. The side of the mounting frame 101 close to the mounting plate 3 has an escape opening 1011, so that the support frame 5 can move.

[0056] The movement of the mounting plate 3 can be driven by a linear drive unit such as a hydraulic assembly.

[0057] Further, it also includes: a threaded cap 201, which has two, and a threaded cap 201 is provided at both ends of the upper and lower ends of the cutting line 2; an upper seat 6, which is arranged on the upper part of the support frame 5; an upper plate 601, which is arranged in the upper seat 6 for lifting and lowering, and an upper threaded rod 602 is provided at the lower end of the upper plate 601, and the upper threaded rod 602 is used for threaded connection with the threaded cap 201 at the upper end of the cutting line 2; a lower seat 7, which is arranged at the lower part of the support frame 5; a lower plate 701, which is arranged in the lower seat 7 for lifting and lowering, and a lower threaded rod 702 is provided at the upper end of the lower plate 701, and the lower threaded rod 702 is used for threaded connection with the threaded cap 201 at the lower end of the cutting line 2. It also includes: a linear reciprocating drive unit 603, which is arranged in the upper seat 6 and is used to drive the upper plate 601 to lift and lower; a tension spring 703, which is arranged in the lower seat 7, one end of which acts on the lower seat 7, and the other end acts on the lower plate 701, and is used to provide a force to straighten the cutting line 2.

[0058] When in use, the threaded cap 201 can realize the detachable connection between the cutting line 2 and the support frame 5, and the upper plate 601 and the lower plate 701 can be used to straighten the cutting line 2, and the cutting line 2 can be moved up and down at the same time. The linear reciprocating drive unit 603 can drive the upper plate 601 to reciprocate and rise and fall. After the threaded caps 201 at the upper and lower ends are connected with the upper threaded rod 602 and the lower threaded rod 702, the upper plate 601 and the lower plate 701 straighten the cutting line 2, the upper plate 601 rises, driving the cutting line 2 to rise, and the tension spring 703 is extended to store energy, the upper plate 601 falls, and the tension spring 703 pulls the cutting line 2 down through tension, and the tension spring 703 keeps the cutting line 2 in a straightened state at all times.

[0059] The linear reciprocating drive unit 603 can achieve reciprocating drive by driving a one-way screw assembly or a reciprocating screw assembly via a motor.

[0060] Furthermore, it also includes: a transmission screw 301, which is rotatably arranged on the mounting plate 3, and the transmission screw 301 is threadedly connected with the slide 4 to drive the slide 4 to move horizontally.

[0061] When in use, the transmission screw 301 can be set on the side of the mounting plate 3 close to the sampling tube 1, and the motor driving the transmission screw can be set on the other side of the mounting plate 3, and the transmission is performed through gears or timing belts, which is helpful to shorten the length of the mounting plate 3 in the axial direction of the transmission screw 301.

[0062] Furthermore, the inner wall of the sampling tube 1 has a vertically arranged accommodating groove 103 for accommodating the cutting line 2, the upper part of the sampling tube 1 has an upper plug hole 104 for accommodating the upper threaded cap 201, and the lower end of the sampling tube 1 has a lower plug hole 105 for accommodating the lower threaded cap 201.

[0063] When in use, the inner wall of the sampling tube 1 is provided with a receiving groove 103 in the vertical direction, and the cutting line 2 can be placed in the receiving groove 103 at the beginning. The upper plug hole 104 of the sampling tube 1 can be plugged to receive the threaded cap 201 at the upper end, and the lower plug hole 105 can receive the threaded cap 201 at the lower end. When the sampling tube 1 is lowered into the ground, the cutting line 2 is built into the sampling barrel, and when cutting, the threaded cap 201 is pulled out and connected to the support frame 5. The upper plug hole 104 can be located on the outer side of the upper part of the sampling barrel. When the threaded cap 201 at the upper end is plugged, more redundancy of the cutting line 2 can be left above the sampling barrel, which is convenient for the connection and cutting with the support frame 5 in the later stage.

[0064] A geological exploration method is also proposed, which uses the above-mentioned geological exploration device to take soil samples, and the use steps include:

[0065] In the first step, the cutting line 2 is attached to the inner wall of the sampling tube 1, the sampling tube 1 is lowered and extended into the ground for sampling, a soil sample 8 is stored inside the sampling tube 1, and then the sampling tube 1 is raised above the ground;

[0066] In the second step, after the cutting line 2 moves radially in the sampling tube 1, it moves away from the inner wall of the sampling tube 1, and then the cutting line 2 moves in a circular manner to cut the soil sample 8 in the sampling tube 1 into an outer ring portion 801 and an inner core portion 802;

[0067] In the third step, the push plate 102 descends to push the cut soil sample 8 out of the sampling tube 1, peeling off the outer ring portion 801, leaving the inner core portion 802 as the sample, and completing the sampling.

[0068] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A geological prospecting device, comprising a sampling tube (1), wherein the sampling tube (1) enters underground for sampling, a mounting frame (101) is arranged above the sampling tube (1), a push plate (102) is arranged inside the mounting frame (101) for lifting, and the push plate (102) pushes a soil sample (8) out of the sampling tube (1); characterized in that: Also includes: The cutting line (2) is vertically arranged inside the sampling tube (1) and is arranged to move horizontally inside the sampling tube (1) and is used to cut the soil sample (8) along a ring inside the soil sample (8) to cut the columnar soil sample (8) into an outer ring portion (801) and an inner core portion (802).

2. A geological prospecting device according to claim 1, characterized in that: The cutting line (2) moves horizontally inside the sampling tube (1) and is arranged to be lifted and lowered vertically, and is used for cutting the soil sample (8).

3. A geological prospecting device according to claim 2, characterized in that: Also includes: A mounting plate (3) is arranged to be horizontally movable relative to the sampling tube (1), and the mounting plate (3) moves closer to or farther from the sampling tube (1); A slide seat (4) is arranged on the mounting plate (3) for horizontal movement, and the movement direction of the slide seat (4) is perpendicular to the movement direction of the mounting plate (3); A support frame (5) is vertically arranged on the slide (4); the upper portion of the support frame (5) is located above the sampling tube (1) and is used to connect with the upper end of the cutting line (2); the lower portion of the support frame (5) is located below the sampling tube (1) and is used to connect with the lower end of the cutting line (2); the support frame (5) moves with the slide (4) and is used to drive the cutting line (2) to cut the soil sample (8).

4. A geological prospecting device according to claim 3, characterized in that: Also includes: There are two threaded caps (201), one threaded cap (201) is disposed at each of the upper and lower ends of the cutting line (2); An upper seat (6) is arranged on the upper part of the support frame (5); An upper plate (601) is lifted and disposed in the upper seat (6), and the lower end of the upper plate (601) is provided with an upper threaded rod (602), and the upper threaded rod (602) is used for threaded connection with the threaded cap (201) at the upper end of the cutting line (2); A lower seat (7) is arranged at the lower part of the support frame (5); The lower plate (701) is lifted and arranged in the lower seat (7), and the upper end of the lower plate (701) is provided with a lower threaded rod (702), and the lower threaded rod (702) is used for threaded connection with the threaded cap (201) at the lower end of the cutting line (2).

5. A geological prospecting device according to claim 4, characterized in that: Also includes: A linear reciprocating drive unit (603), arranged in the upper seat (6), and used for driving the upper plate (601) to rise and fall; A tension spring (703) is arranged in the lower seat (7), one end of which acts on the lower seat (7) and the other end of which acts on the lower plate (701), and is used to provide a force for straightening the cutting line (2).

6. A geological prospecting device according to claim 3, characterized in that: Also includes: A transmission screw (301) is rotatably mounted on the mounting plate (3); the transmission screw (301) is threadedly connected to the slide seat (4) and is used to drive the slide seat (4) to move horizontally.

7. A geological prospecting device according to claim 4, characterized in that: The inner wall of the sampling tube (1) has a vertically arranged receiving groove (103) for receiving the cutting line (2); the upper part of the sampling tube (1) has an upper plug hole (104) for receiving the threaded cap (201) at the upper end; the lower end of the sampling tube (1) has a lower plug hole (105) for receiving the threaded cap (201) at the lower end.

8. A geological prospecting method, characterized in that: The method of using the geological exploration device according to claim 1 to take soil samples comprises the following steps: In the first step, the cutting line (2) is attached to the inner wall of the sampling tube (1), the sampling tube (1) is lowered and extended into the ground for sampling, a soil sample (8) is stored inside the sampling tube (1), and then the sampling tube (1) is raised above the ground; In the second step, after the cutting line (2) moves radially along the sampling tube (1), it moves away from the inner wall of the sampling tube (1), and then the cutting line (2) moves in a circular direction to cut the soil sample (8) in the sampling tube (1) into the outer ring part (801) and the inner core part (802); In the third step, the push plate (102) descends to push the cut soil sample (8) out of the sampling tube (1), peeling off the outer ring portion (801), leaving the inner core portion (802) as a sample, and completing the sampling.

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