A three-dimensional geological modeling method and device for multiple landform units

Abstract

A method and device for three-dimensional geological modeling of multiple geomorphic units, comprising a drill bit, a salvage device, a control chip, and a distance sensor. The drill bit is provided with an inner tube and a core tube, the inner tube is provided with a claw structure, the drill bit is provided with a positioning groove, the core tube is provided with a first extension, the inner tube is provided with a first component, a second component, and a button, the second component is provided with a tool, and then the method is operated by the following steps: 1) the drill bit drills a core; 2) the second component presses the button, the drill bit rotates upward, and the drill bit depth X is recorded, the previous drill bit depth is set as X1, and the actual operation distance Y=X-X1 is obtained; 3) the total length of the cut core is Z; 4) the salvage device spearhead is embedded in the claw structure; 5) the core is removed and step 6 is selected based on whether the core has cracks; 6) the length of the upper core is J, the gap for forming an air gap is set as K, K=Y-Z, and the air gap is formed between the depths X1+J and X1+J+K; 7) the core composition is analyzed and the obtained data is added to the modeling data; 8) finally, a three-dimensional geological model of the multiple geomorphic units is obtained.

Description

Technical Field

[0001] The present invention belongs to the technical field of geological data acquisition devices, and in particular relates to a multi-geomorphic unit three-dimensional geological modeling method and a device thereof. Background Art

[0002] With the development of technology and the demand for management convenience, more and more industries are undergoing digital transformation, including engineering surveys and infrastructure construction. By collecting geological samples and testing them to obtain geological data, BIM models and management systems are established based on this geological data, thereby facilitating efficient planning and design in subsequent engineering construction.

[0003] The existing method of collecting geological data is generally to extract the core after drilling and perform material analysis on the core. A complete geological model is obtained by aggregating data from multiple locations, and then modeling is carried out.

[0004] Core drilling equipment is also called a core drill. There are many types of core drills. Core drills for shallow-level coring typically consist of a drive unit and an outer tube connected to the drive unit. A hollow drill bit is located at the bottom of the outer tube. As the drive unit rotates and lowers the outer tube, the hollow drill bit fragments the formation, cutting out the core. As the outer tube rotates and lowers, the core enters the outer tube, where it is held in place by a plate. The core can be removed by fully lifting the outer tube. This type of core drill is only suitable for shallow-level coring. Raising and lowering the outer tube is time-consuming, making coring inefficient.

[0005] In order to improve the efficiency of core drilling, the core drilling rig for deep core drilling generally does not lift the entire outer tube when taking the core. It generally includes a driving device, an outer tube driven by the driving device, a hollow drill bit at the bottom of the outer tube, an inner tube for obtaining the core is provided in the outer tube, and a clamping claw is provided on the top of the inner tube. The inner tube is positioned at the bottom of the outer tube by clamping the clamping claw in the positioning groove in the outer tube. When the outer tube rotates and probes downward, the hollow drill bit cuts the formation and cuts out the core. As the outer tube rotates and probes downward, the core The core drill rig also includes a salvage device, which is connected to a rope at the top and a salvage spearhead at the bottom. After obtaining a predetermined amount of core from the inner tube, the salvage device is lowered from the top opening of the outer tube. The salvage device falls by its own gravity, and the salvage spearhead cooperates with the claws to position it. After the salvage spearhead and the claws are positioned, the claws disengage from the positioning grooves in the outer tube. The salvage device and the inner tube are lifted to the surface by the lifting rope, and the core is then retrieved. This core drilling rig is suitable for core drilling in deeper layers, improving the efficiency of core extraction. Generally, the outer tube is only removed when the hollow drill bit needs to be replaced.

[0006] The same length of cores is helpful for core storage. Longer cores will not fit in the core and need to be cut. Cutting may cause damage at the cut point and affect the final analysis. Shorter cores waste storage space. If the missing distance needs to be cut, a longer core may be cut.

[0007] Currently, if a core drill needs to drill out a core of the same length during use, the drill bit is used to drill the required core length. However, if a gas or liquid interstitial layer is encountered, the length of the core will be affected. Summary of the Invention

[0008] In response to the shortcomings of the existing technology, the present invention provides a three-dimensional geological modeling method and device for multiple geomorphic units. This three-dimensional geological modeling method and device for multiple geomorphic units can automatically cut and remove the core after drilling a set length, and can also calculate the gap distance of the gas or liquid gap layer.

[0009] In order to solve the above technical problems, the present invention is solved by the following technical solutions: a three-dimensional geological modeling device for multiple landform units, including a drill bit, a salvage device, a control chip and a distance sensor, the drill bit is provided with an inner tube, the inner tube is provided with a core tube, a claw structure is provided above the inner tube, the side wall of the drill bit is provided with a positioning groove matching the claw structure, the spearhead of the salvage device is embedded in the claw structure to disengage the claw structure from the positioning groove, a first protrusion is provided on one side of the core tube, a first piece is provided on the inner wall of the inner tube, the first piece is slidably connected toward the core tube, the first piece is provided with a second protrusion above the first protrusion, a first spring is provided between the first piece and the inner wall of the inner tube, a third protrusion is provided at the lower part of the first piece, the inner tube is provided with a second piece below the first piece, the second piece is slidably connected toward the first piece, the inner tube is provided with a button below the second piece, a second spring is provided below the second piece, a fourth protrusion is provided on the top of the second piece, the bottom of the fourth protrusion abuts against the top of the third protrusion, The second member is provided with a tool directed toward the core tube, and a torsion spring is provided between the tool and the second member. When the tool reaches the bottom of the core tube, the core tube still has a sliding space below the second member, and the core tube will move upward due to the squeezing of the core. If a gas layer is encountered, the core length will not increase, so the core tube will not move relatively until the rock layer is drilled again, and the length of the core will continue to increase. When the core tube is squeezed by the rock core to the first extension and the second extension, the third extension on the first member moves away from the fourth extension, and the second member is pulled by the second spring to move toward the bottom of the core tube. When the tool moves to the core tube, the tool abuts against the core, and the second member squeezes the button, the drill bit starts to rotate upward. Relying on the downward force of the core on the tool, the second member continues to move downward until the core breaks, completing the preliminary core extraction, and then taking it out of the ground. Finally, modeling is performed according to the condition of the core, so that the core can be automatically cut and removed after drilling a set length.

[0010] In the above technical solution, preferably, a first groove is provided on the second piece, a positioning plate is inserted into the first groove, and the second piece is oriented by the positioning plate and the first groove. This design facilitates the installation of the second piece and the orientation of the displacement direction of the second piece.

[0011] In the above technical solution, preferably, a third spring is provided between the top of the core tube and the inner wall of the inner tube top. This design can prevent the second component from being accidentally triggered by the core tube moving upward due to the drill bit moving downward too quickly.

[0012] In the above technical solution, preferably, a first inclined surface is provided on the top of the first extending portion, and a second inclined surface is provided on the bottom of the second extending portion. This design enables the first piece to be more easily pressed by the first extending portion.

[0013] In the above technical solution, preferably, a third inclined surface is provided on the top of the second extension. This design enables the core tube to easily return to the bottom of the first extension. Firstly, it can provide space for the second piece to continue to move downward when the core is not completely cut. Secondly, it also provides convenience when removing the core.

[0014] In the above technical solution, preferably, the top of the core tube is provided with the first through hole facing the inside of the core tube, and the top of the inner tube is provided with the second through hole. This design allows the liquid or air to flow out from the first through hole and the second through hole when the drill bit drills into the gas layer or the liquid layer, thereby increasing the drainage and exhaust capabilities.

[0015] In the above technical solution, preferably, the shape of the tool is an arc shape around the core tube from the connection between the tool and the second piece, and a torsion spring is provided between the tool and the second piece. This design enables the tool to occupy less lateral space for accommodation and at the same time provide more cutting area.

[0016] In the above technical solution, preferably, the curvature of the tool is 60 degrees around the axis of the core tube. This design can completely cut the core using the shortest tool.

[0017] A three-dimensional geological modeling method for multiple landform units, comprising the following steps: 1) the drill bit cuts the stratum and drills out a core, and the core drives the core tube to move upward until the second part is released; 2) after the second part is released, the second part moves downward until the tool moves below the core tube, and at the same time, the second part presses the button, and the button outputs the control chip signal, and the control chip controls the drill bit to rotate upward, and the control chip controls the distance sensor to record the depth X of the drill bit, and the last drill bit depth is set to X1, and the actual running distance Y=X-X1 is obtained; 3) the tool is displaced toward the core due to the torsion spring, and the tool is used to press against and cut the core. At the same time, because the length of the core tube remains unchanged, the total length of the core is fixed at Z; 4) the spearhead of the salvage device is embedded in the claw structure; 5) the core is removed by using the cooperation between the claw structure and the salvage device to analyze the core to determine whether there is a crack in the middle of the core. If there is a crack in the middle of the core, step 6 is performed; if there is no crack, step 7 is performed; 6) the length of the core at the upper end is recorded as J, and the gap formed by the void layer is set to K, K=YZ, and the void layer is formed between the depths of X1+J and X1+J+K; 7) the composition of the core is analyzed and the modeling data is added at the same time. If step 6 is passed, the depth data of the void layer is added to the modeling data; 8) finally, a three-dimensional geological model of multiple geomorphic units is obtained.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. A three-dimensional geological modeling method and device for multiple landform units of the present invention can automatically cut and remove the core after drilling a set length.

[0019] The present invention allows the tool to be shaped like an arc extending from the connection between the tool and the second piece around the core tube, and a torsion spring is provided between the tool and the second piece, so that the tool can occupy less lateral space for accommodation and provide more cutting area.

[0020] The present invention sets the arc of the tool to 60 degrees around the axis of the core tube, so that the core can be completely cut with the shortest tool.

[0021] The present invention facilitates the installation of the second member and the orientation of the displacement direction of the second member through the cooperation between the positioning plate and the first groove.

[0022] The present invention provides a third spring between the top of the core tube and the inner wall of the inner tube top, which can prevent the second component from being triggered by the core tube moving upward due to the drill bit moving downward too quickly.

[0023] In the present invention, a first inclined surface is provided on the top of the first extending portion, and a second inclined surface is provided on the bottom of the second extending portion, so that the first piece can be more easily pressed by the first extending portion.

[0024] The present invention provides a third inclined surface at the top of the second extension portion, which enables the core tube to easily return to the bottom of the first extension portion. Firstly, it can provide space for the second piece to continue to move downward when the core is not completely cut. Secondly, it also provides convenience when removing the core.

[0025] The present invention provides the first through hole and the second through hole, so that liquid or air can flow out from the first through hole and the second through hole to increase the liquid drainage and air exhaust capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 2 is a cross-sectional view of an embodiment of the present invention.

[0027] Figure 2 This is a cross-sectional view of a cutting tool according to an embodiment of the present invention.

[0028] Figure 3 This is a cross-sectional view of an embodiment of the present invention when the inner tube needs to be removed.

[0029] Figure 4 This is a structural diagram of an embodiment of the present invention.

[0030] Figure 5 This is an enlarged view of point A in Example 1 of the present invention.

[0031] Figure 6 This is an enlarged view of Example B of the present invention.

[0032] Figure 7 This is an enlarged view of point C in Example 1 of the present invention.

[0033] Figure 8 This is an enlarged view of point D in Example 1 of the present invention.

[0034] Figure 9 This is an enlarged view of point E in Example 1 of the present invention.

[0035] Figure 10 This is an enlarged view of point F in Example 1 of the present invention. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments: Figures 1 to 10A three-dimensional geological modeling device for multiple landform units includes a drill bit 1, a salvage device 52, a control chip and a distance sensor. The control chip and the distance sensor are not shown in the figure. An inner tube 13 is provided in the drill bit 1, and a core tube 2 is provided in the inner tube 13. A claw structure 50 is provided above the inner tube 13. A positioning groove 51 matching the claw structure 50 is provided on the side wall of the drill bit 1. The spearhead of the salvage device 52 is embedded in the claw structure 50 to disengage the claw structure 50 from the positioning groove 51. A first extension 3 is provided on one side of the core tube 2. The first extension 3 can be set on a plate and then extend out at one end. The plate can be fixed by screws. A first piece 4 is provided on the inner wall of the inner tube 13. The first piece 4 is slidably connected toward the core tube 2. The first piece 4 is above the first extension 3. A second extension 5 is provided, a first spring 6 is provided between the first piece 4 and the inner wall of the inner tube 13, a third extension 7 is provided at the lower part of the first piece 4, a second piece 8 is provided below the first piece 4 of the inner tube 13, the second piece 8 is slidably connected toward the first piece 4, a button 9 is provided below the second piece 8 of the inner tube 13, a second spring 10 is provided below the second piece 8, a fourth extension 11 is provided on the top of the second piece 8, the bottom of the fourth extension 11 is in contact with the top of the third extension 7, a tool 12 facing the core tube 2 is provided on the second piece 8, a torsion spring is provided between the tool 12 and the second piece 8, the torsion spring is not drawn in the figure, and when the tool 12 reaches the bottom of the core tube 2, the core tube 2 still has a sliding space below the second piece 8, so that the tool 12 can still be moved during cutting. The second piece 8 moves downward to prevent the cutter 12 from breaking due to the opposite forces exerted on the cutter 12 by the core 2 and the second piece 8. When this device is running, the drill bit 1 moves downward, and the core tube 2 will move upward relatively due to the squeezing of the core. If a gas layer is encountered, the core tube 2 will not move relatively because the core length does not increase. The core length will continue to increase until the rock layer is drilled again. When the core tube 2 is squeezed by the core to the first extension 3 squeezing the second extension 5, the first piece 4 is driven by the second extension 5, and the third extension 7 on the first piece 4 moves away from the fourth extension 11. The second piece 8 is displaced because the third extension 7 no longer blocks the fourth extension 11. The second piece 8 is pulled by the second spring 10 toward the bottom of the core tube 2 and waits until the cutter 12 is displaced. After reaching the bottom of the core tube 2, the cutter 12 rests against the core, and the drill bit 1 is rotated to cut. The second piece 8 squeezes the button 9, and the balance point between the second spring 10 and the second piece 8 can be set to this position. This can prevent the cutter 12 from moving on the outer wall of the core instead of cutting when the tension of the second spring 10 is too large. The drill bit 1 starts to rotate upward under the control of the button 9 and the control chip, and relies on the downward force of the core on the cutter 12 to drive the second piece 8 to move downward. Because the fourth extension 11 on the second piece 8 has reached the bottom of the third extension 7, the core tube 2 squeezes the second extension 5 on the first piece 4 outward after moving downward, which will not block the second piece 8 from moving downward again. Because there is still displacement space below the second piece 8, the second piece 8 continues to move downward.This prevents the cutter 12 from breaking due to the downward force of the core. Until the core breaks, the cutter 12 supports the bottom of the core or sets a clamping plate in the core tube 2 to fix the core. Because the length of the core tube 2 remains unchanged, the length of the core can be guaranteed to be consistent. The initial core is then taken out of the ground. Finally, modeling is performed based on the core situation. After the set length of the core is drilled, it can be automatically cut and taken out. At the same time, the gap distance of the gas or liquid gap layer can be calculated.

[0037] In this embodiment, a first groove 15 is provided on the second piece 8, and a positioning plate 16 is inserted into the first groove 15. The second piece 8 is oriented by the positioning plate 16 and the first groove 15. This design facilitates the installation of the second piece 8 and the orientation of the displacement direction of the second piece 8.

[0038] In this embodiment, a third spring 17 is provided between the top of the core tube 2 and the inner wall of the top of the inner tube 13. This design can prevent the second member 8 from being accidentally triggered by the upward movement of the core tube 2 due to the drill bit 1 moving downward too quickly.

[0039] In this embodiment, a first inclined surface 18 is provided on the top of the first extension portion 3 , and a second inclined surface 19 is provided on the bottom of the second extension portion 5 . This design enables the first piece 4 to be more easily pressed by the first extension portion 3 .

[0040] In this embodiment, a third inclined surface 20 is provided on the top of the second extension 5. This design enables the core tube 2 to be easily returned to the bottom of the first extension 3. Firstly, it can provide space for the second piece 8 to continue to move downward when the core is not completely cut. Secondly, it also provides convenience when removing the core.

[0041] In this embodiment, if a gas layer and a liquid layer are encountered under the above conditions, the gas and liquid can only be removed through the gap between the drill bit and the drilled hole. In this way, when the gap is small, the gas and liquid cannot be removed, which may cause the core tube 2 to be pushed and cause false triggering. A first through hole 21 facing the inside of the core tube 2 is provided on the top of the core tube 2, and a second through hole 22 is provided on the top of the inner tube 13. This design allows the liquid or air to flow out from the first through hole 21 and the second through hole 22 when the drill bit drills into the gas layer or the liquid layer, increasing the drainage and exhaust capabilities.

[0042] In this embodiment, the shape of the tool 12 is an arc shape around the core tube 2 from the connection between the tool 12 and the second part 8. Because it is an arc shape, an annular groove can be set at the place where the tool 12 is fixed to accommodate the tool 12, which can reduce the diameter of the drill bit 1. At the same time, the tool 12 supports the bottom of the core or a clamping plate is set in the core tube 2 to fix the core. This design allows the tool 12 to occupy less lateral space for accommodation and more cutting area.

[0043] In this embodiment, the curvature of the tool 12 is 60 degrees around the axis of the core tube 2, because 60 degrees can make the distance between the connection of the tool 12 and the end of the tool 12 away from the connection and the distance from the connection of the tool 12 to the axis of the core tube 2 the same, thereby achieving the shortest curvature tool 12 to cut the core, the tool 12 supports the bottom of the core or a clamping plate is set up in the core tube 2 to fix the core. This design can use the shortest tool 12 to completely cut the core.

[0044] A three-dimensional geological modeling method for multiple landform units includes the following steps: 1) a drill bit 1 cuts the stratum to drill out a core, and the core drives the core tube 2 to move upward until the second piece 8 is released; 2) after the second piece 8 is released, the second piece 8 moves downward until the tool 12 moves below the core tube 2, and at the same time, the second piece 8 presses the button 9, and the button 9 outputs a control chip signal, the control chip controls the drill bit 1 to rotate upward, and the control chip controls the distance sensor to record the depth X of the drill bit 1, and the last depth of the drill bit 1 is set to X1, and the actual running distance Y=X-X1 is obtained; 3) the tool 12 moves toward the core due to the torsion spring, and the tool 12 is used to press against and cut the core. At the same time, because the length of the core tube 2 remains unchanged, the total length of the core is fixed to Z; 4) the spearhead of the salvage device 52 is embedded in the claw Structure 50; 5) using the cooperation between the claw structure 50 and the salvage device to remove the core and analyze the core to determine whether there is a crack in the middle of the core. When there is a crack in the middle of the core, proceed to step 6, and when there is no crack, proceed to step 7; 6) record the length of the core at the upper end as J, and set the gap formed by the void layer to K, K=YZ, and the void layer is formed between the depth of X1+J and X1+J+K; 7) analyze the composition of the core and add the modeling data at the same time. At the same time, if step 6 is passed, the depth data of the void layer is added to the modeling data; 8) finally, analyze multiple positions to obtain a three-dimensional geological model of multiple geomorphic units, which can automatically cut off and remove the core after drilling a set length, and can calculate the gap distance of the gas or liquid gap layer.

[0045] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A three-dimensional geological modeling device for multiple landform units, comprising a drill bit (1), a salvage device (52), a control chip and a distance sensor, wherein an inner tube (13) is provided in the drill bit (1), a core tube (2) is provided in the inner tube (13), a claw structure (50) is provided above the inner tube (13), a positioning groove (51) matching the claw structure (50) is provided on the side wall of the drill bit (1), and a spearhead of the salvage device (52) is embedded in the claw structure (50) to disengage the claw structure (50) from the positioning groove (51), characterized in that: A first extension portion (3) is provided on one side of the core tube (2), a first piece (4) is provided on the inner wall of the inner tube (13), the first piece (4) is slidably connected toward the core tube (2), a second extension portion (5) is provided on the first piece (4) above the first extension portion (3), a first spring (6) is provided between the first piece (4) and the inner wall of the inner tube (13), a third extension portion (7) is provided at the lower part of the first piece (4), the inner tube (13) is provided with a second piece (8) below the first piece (4), the second piece (8) is slidably connected toward the first piece (4), and the inner The tube (13) is provided with a button (9) below the second piece (8), a second spring (10) is provided below the second piece (8), a fourth extension (11) is provided at the top of the second piece (8), the bottom of the fourth extension (11) is in contact with the top of the third extension (7), a tool (12) facing the core tube (2) is provided on the second piece (8), a torsion spring is provided between the tool (12) and the second piece (8), and when the tool (12) reaches the bottom of the core tube (2), the core tube (2) still has a sliding space below the second piece (8).

2. The multi-geomorphic unit 3D geological modeling device according to claim 1, characterized in that: The second piece (8) is provided with a first groove (15), a positioning plate (16) is inserted into the first groove (15), and the second piece (8) is oriented by the positioning plate (16) and the first groove (15).

3. The multi-geomorphic unit 3D geological modeling device according to claim 2, characterized in that: A third spring (17) is provided between the top of the core tube (2) and the inner wall of the top of the inner tube (13).

4. The multi-geomorphic unit 3D geological modeling device according to claim 2, characterized in that: The top of the first extension portion (3) is provided with a first inclined surface (18), and the bottom of the second extension portion (5) is provided with a second inclined surface (19).

5. The multi-geomorphic unit 3D geological modeling device according to claim 4, characterized in that: A third inclined surface (20) is provided on the top of the second extension portion (5).

6. The multi-geomorphic unit 3D geological modeling device according to claim 2, characterized in that: The top of the core tube (2) is provided with a first through hole (21) facing the inside of the core tube (2), and the top of the inner tube (13) is provided with a second through hole (22).

7. The multi-geomorphic unit 3D geological modeling device according to claim 2, characterized in that: The shape of the cutter (12) is an arc shape extending from the connection between the cutter (12) and the second member (8) around the core tube (2).

8. The multi-geomorphic unit 3D geological modeling device according to claim 7, characterized in that: The arc of the tool (12) is 60 degrees around the axis of the core tube (2).

9. The modeling method of the multi-geomorphic unit 3D geological modeling device according to claim 1, characterized in that: The following steps are involved: 1) The drill bit (1) cuts the formation and drills out the core, and the core drives the core tube (2) to move upward until the second piece (8) is released; 2) After the second piece (8) is released, the second piece (8) moves downward until the tool (12) moves below the core tube (2), and at the same time, the second piece (8) presses the button (9), and the button (9) outputs the control chip signal, and the control chip controls the drill bit (1) to rotate upward, and the control chip controls the distance sensor to record the depth X of the drill bit (1), and the last depth of the drill bit (1) is set to X1, and the actual running distance Y=X-X1 is obtained; 3) The tool (12) moves toward the core due to the torsion spring, and the tool (12) is used The core is cut against the core, and because the length of the core tube (2) remains unchanged, the total length of the core is fixed to Z; 4) the spearhead of the salvage device (52) is embedded in the claw structure (50); 5) the core is taken out by using the cooperation between the claw structure (50) and the salvage device (52) to analyze the core, and whether there is a crack in the middle of the core is determined. If there is a crack in the middle of the core, step 6 is performed, and if there is no crack, step 7 is performed; 6) the length of the core at the upper end is recorded as J, and the gap formed by the air gap is set as K, K=YZ, and the air gap is formed between the depth of X1+J and X1+J+K; 7) the composition of the core is analyzed and the modeling data is added at the same time. If step 6 is passed, the depth data of the air gap is added to the modeling data; 8) Finally, a three-dimensional geological model of multiple geomorphological units is obtained.

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