A pipeline directional drilling construction method based on the through-hole technology of guide holes

Abstract

The present application discloses a pipeline directional drilling construction method based on the through-hole technology of guide holes, which includes: selecting an entry point and an exit point at a predetermined position on the ground; moving the drilling rig equipment to a predetermined position beside the entry point and the exit point on the ground, and erecting an isolation casing to prepare for drilling work; installing a guiding device at a predetermined position on the ground to guide the drilling direction of the isolation casing; starting the drilling rig equipment so that the isolation casing drills underground from the entry point and the exit point under the guidance of the guiding device. When the present application is used, the situation of the isolation casing deviating from the direction when being driven into the ground can be reduced, the accuracy of the drilling work can be effectively improved, and thus the construction quality can be improved.

Description

Technical Field

[0001] The invention relates to the field of underground directional drilling construction, in particular to a pipeline directional drilling construction method based on a guide hole penetration technology. Background Art

[0002] During the construction of underground pipeline crossings, directional drilling technology is often used to drill holes in predetermined locations underground. Traditional drilling processes can easily lead to the collapse of pebbles or gravel, causing drill sticking or hole blockage, which increases the difficulty of construction.

[0003] At present, in order to solve the above problems, isolation casings are generally driven into the predetermined positions of the ground entry and exit points. The isolation casings can reduce the collapse of pebbles and gravel, and then high-pressure water jets are used to remove soil from the isolation casings to ensure the normal progress of construction.

[0004] In view of the current technical situation, the inventor believes that in the process of using equipment to drive the isolation casing into the ground, coupled with the relatively complex outdoor environment, the isolation casing is prone to shaking, causing the isolation casing to eventually deviate from the predetermined direction, which can easily affect the accuracy of the isolation casing drilling work, and needs further improvement. Summary of the Invention

[0005] The purpose of this application is to provide a pipeline directional drilling construction method based on the guide hole penetration technology, which can reduce the directional deviation of the isolation casing when it is driven into the ground, effectively improve the accuracy of the isolation casing drilling work, and thus improve the construction quality.

[0006] This application provides a pipeline directional drilling construction method based on the pilot hole penetration technology, which adopts the following technical solutions:

[0007] A pipeline directional drilling construction method based on a pilot hole penetration technology comprises the following steps:

[0008] Step 1: Select the entry point and exit point at the predetermined position on the ground;

[0009] Step 2: Move the drilling rig to the predetermined location next to the entry and exit points on the ground, set up the isolation casing and prepare for drilling;

[0010] Step 3: Install a guide device at a predetermined position on the ground to guide the drilling direction of the isolation casing;

[0011] Step 4: Turn on the drilling rig equipment, so that the isolation casing is drilled into the ground from the entry point and the exit point under the guidance of the guide device.

[0012] By adopting the above technical solution, during the drilling of the isolation casing, by setting a guiding device on the ground, the guiding device can guide the drilling isolation casing, enabling the isolation casing to drill along a predetermined direction, thereby reducing the situation where the isolation casing deviates from the predetermined direction and effectively improving the accuracy and construction quality of the drilling construction.

[0013] The present application is further provided with: the guiding device includes: symmetrically arranged mounting seats on the bearing surface of the backing plate; support rods vertically mounted on the mounting seats; support cylinders mounted on the mounting seats for the bottom ends of the support rods to slide and sleeved thereon; a guiding assembly arranged at the top of the support rods for guiding the isolation casing; and a height adjustment assembly arranged on the support rods for adjusting the height of the support rods so that the support rods on the mounting seats form a height difference.

[0014] By adopting the above technical solution, the provided guiding assembly can guide the drilling direction of the isolation casing, enabling the isolation casing to drill into the soil along a predetermined direction, and the provided height adjustment assembly can adjust the height of the support rods to adjust the height of the guiding assembly on the support rods, so that the guiding assembly can be adjusted in height according to the actual situation, increasing the applicable range of the guiding assembly.

[0015] The present application is further provided with: the guiding assembly includes: a bearing plate mounted on the top of the support rod; an arc-shaped plate whose bottom side is hinged on the bearing surface of the bearing plate and is adapted to the outer contour of the isolation casing; and an adjustment assembly arranged on the bearing plate for driving the arc-shaped plate to rotate around the hinge point to adjust the angle between the arc-shaped plate and the bearing plate.

[0016] By adopting the above technical solution, when it is necessary to adjust the angle between the arc-shaped plate and the bearing plate, the adjustment assembly can be used for adjustment. This solution is simple to operate and can adjust the angle of the arc-shaped plate according to the actual situation to increase the applicable range of the arc-shaped plate.

[0017] The present application is further provided with: the adjustment assembly includes: an adjustment block slidably mounted on the bearing surface of the bearing plate for abutting against the bottom of the arc-shaped plate; a fixed block fixed on the bearing plate; and an adjustment rod threadedly inserted between the fixed block and the adjustment block. The top of the adjustment block is provided with an arc-shaped surface adapted to the outer contour of the bottom of the arc-shaped plate.

[0018] By adopting the above technical solution, rotating the adjustment rod can drive the adjustment block to slide on the bearing surface of the bearing plate. During the sliding process of the adjustment block, it can abut against the bottom of the arc-shaped plate, thereby achieving the purpose of adjusting the arc-shaped plate. This structural design is ingenious and the effect is obvious.

[0019] The present application is further provided that: symmetric sliders are slidably arranged on the bearing surface of the bearing plate. The sliders are located on both sides of the adjusting block and the sliding direction is consistent with that of the adjusting block. A connecting rod for the two is also arranged between the slider and the adjusting block. A limiting rod for abutting against the outer side of the arc-shaped plate is obliquely installed on the slider.

[0020] By adopting the above technical solution, the arranged sliders can slide along with the movement of the adjusting block. When the sliders slide to a predetermined position, the limiting rods arranged on the sliders can abut against the outer side of the arc-shaped plate to enhance the stability of the entire arc-shaped plate and reduce the situation that the arc-shaped plate shakes and affects the deviation of the direction of the isolation sleeve.

[0021] The present application is further provided that: a threaded cylinder is installed on the slider. The bottom of the limiting rod is threadedly connected in the threaded cylinder. A limiting ball is installed at the top of the limiting rod. A plurality of grooves adapted to the limiting balls are arranged on the outer side of the arc-shaped plate.

[0022] By adopting the above technical solution, the arranged limiting balls can be adapted to the grooves on the outer side of the arc-shaped plate, so as to increase the contact area between the limiting balls and the arc-shaped plate and enhance the stability of the arc-shaped plate. The arranged threaded cylinder can be rotated when needed to make the limiting balls closely fit the outer side of the arc-shaped plate, further increasing the stability of the arc-shaped plate.

[0023] The present application is further provided that: two connecting ears are installed on the slider. The bottom of the threaded cylinder is installed between the connecting ears through a rotating shaft, and a limiting nut is threadedly connected to the end of the rotating shaft.

[0024] By adopting the above technical solution, when the angle of the limiting rod needs to be adjusted, only the limiting nut needs to be rotated to release the restriction on the limiting rod. After the position of the limiting rod is adjusted, the limiting nut can be rotated in the reverse direction. The whole process is simple to operate and has a remarkable effect.

[0025] The present application is further provided that: an arc-shaped cover plate is hinged to one side of the arc-shaped plate. A locking member for connecting the two is arranged on the side of the arc-shaped cover plate and the arc-shaped plate away from their hinged ends.

[0026] By adopting the above technical solution, the arranged arc-shaped cover plate and the locking member cooperate with each other to abut and limit the isolation sleeve in the arc-shaped plate, further reducing the situation that the isolation sleeve shakes in the arc-shaped plate.

[0027] The present application is further provided that: a sliding plate is slidably arranged on the bearing surface of the cushion plate. The bottom of one of the mounting seats is installed on the sliding plate. A driving component for driving the sliding plate to slide to adjust the distance between the two mounting seats is also arranged on the cushion plate.

[0028] By adopting the above technical solution, when the driving assembly is turned on, it can drive the skateboard to slide on the backing plate to adjust the distance between the two mounting seats, so as to conveniently adapt to the angle between the isolation sleeve and the ground and increase the application range of the present application.

[0029] The present application is further provided that: the driving assembly includes: a threaded rod horizontally installed on the backing plate and passing through the skateboard in a threaded manner, and a servo motor installed on the backing plate for driving the threaded rod to rotate.

[0030] By adopting the above technical solution, when the servo motor is turned on, it can drive the threaded rod to rotate. During the rotation of the threaded rod, it can drive the skateboard to slide on the backing plate to achieve the purpose of adjusting the distance between the two mounting seats.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] By providing a guiding assembly, the guiding assembly can guide the drilling direction of the isolation sleeve, so that the isolation sleeve is drilled into the soil along a predetermined direction, reducing the situation where the isolation sleeve shakes and causes the direction to deviate, and improving the quality of the drilling engineering construction;

[0033] By providing a height adjustment assembly and an adjustment assembly, the two cooperate with each other to adjust the inclination angle of the arc plate according to the actual situation, so that the arc plate can better guide the isolation sleeve. And setting one of the mounting seats to be slidable can, on this basis, adjust the distance between the two mounting seats, further increasing the application range of the guiding assembly. Description of the Drawings

[0034] Figure 1 is a construction schematic diagram of the drilling process of the isolation sleeve in the embodiment of the present application;

[0035] Figure 2 is a structural schematic diagram of the guiding device in the embodiment of the present application;

[0036] Figure 3 is a structural schematic diagram of the guiding assembly in the embodiment of the present application.

[0037] Description of the Reference Numerals: 1, backing plate; 10, mounting seat; 2, support rod; 20, support cylinder; 21, bearing plate; 22, arc plate; 220, arc cover plate; 23, adjustment block; 231, fixed block; 232, adjustment rod; 24, slider; 241, connecting rod; 242, limiting rod; 243, threaded cylinder; 244, limiting ball; 245, connecting ear; 246, limiting nut; 3, skateboard; 30, threaded rod; 31, servo motor; 4, moving plate; 41, arc groove; 42, servo motor; 43, telescopic rod; 44, convex block; 45, locking rod; 46, return spring. Specific embodiments

[0038] The following further elaborates on this application with reference to the accompanying drawings.

[0039] An embodiment of this application discloses a pipeline directional drilling construction method based on the through-hole technology of guiding holes, as Figure 1 shown, including the following steps:

[0040] Step 1: Select an entry point and an exit point at a predetermined position on the ground;

[0041] Step 2: Move the drilling rig equipment to a predetermined position beside the entry point and the exit point on the ground, and set up the isolation casing to prepare for drilling work;

[0042] Step 3: Install a guiding device at a predetermined position on the ground to guide the drilling direction of the isolation casing;

[0043] Step 4: Start the drilling rig equipment, so that the isolation casing drills into the ground from the entry point and the exit point under the guidance of the guiding device.

[0044] In this embodiment, as Figure 2 and Figure 3 shown, the guiding device includes: a backing plate 1, symmetrically installed mounting seats 10 on the bearing surface of the backing plate 1, vertically installed support cylinders 20 on the mounting seats 10, a support rod 2 slidably arranged vertically in the support cylinder 20, a guiding component installed at the top of the support rod 2. At the same time, a height adjustment component is provided on the support rod 2 and the support cylinder 20 for adjusting the height of the support rod 2.

[0045] When the guiding device needs to be used, the height of the two support rods 2 can be adjusted by using the height adjustment component, so that a predetermined height difference is formed between the two support rods 2. At this time, the guiding component set at the top of the support rod 2 can guide the isolation casing, so that the inclination angle of the isolation casing inserted into the ground matches the height difference between the two support rods 2. By using this solution to guide the isolation casing, the situation that the isolation casing deviates from the predetermined direction can be reduced, thereby improving the construction quality of the entire drilling project.

[0046] In this embodiment, the guiding component includes: a bearing plate 21 installed at the top of the support rod 2, an arc plate 22 arranged on the bearing surface of the bearing plate 21, and one side of the bottom of the arc plate 22 is hinged on the bearing surface of the bearing plate 21. It should be noted that the inner contour of each arc plate 22 generally matches the outer contour of the isolation casing. Considering that the angles at which the isolation casing enters the ground are different in practice, an adjustment component is also provided on the bearing plate 21, and the adjustment component can drive the arc plate 22 to rotate around the hinge point to adjust the angle between the bottom of the arc plate 22 and the bearing plate 21.

[0047] Among them, the adjusting component includes: an adjusting block 23 slidably mounted on the bearing surface of the bearing plate 21. The top of the adjusting block 23 can abut against the bottom of the arc plate 22. In order to better adapt to the bottom contour of the arc plate 22 and improve the stability of the arc plate 22, in this embodiment, the top surface of the adjusting block 23 is set as an arc surface adapted to the outer contour of the arc plate 22. A fixing block 231 is also fixed on one side of the bearing plate 21 away from the hinged end of the arc plate 22. An adjusting rod 232 is threaded between the fixing block 231 and the adjusting block 23.

[0048] When it is necessary to adjust the inclination angle of the arc plate 22 to adapt to the actual drilling angle of the isolation sleeve, the adjusting rod 232 can be rotated. When the adjusting rod 232 rotates, it will drive the adjusting block 23 to abut against the arc plate 22 and rotate around the hinge point. After the angle of the arc plate 22 is adjusted, stop rotating the adjusting rod 232. The whole process is simple to operate, time-saving and labor-saving.

[0049] In addition, in order to further improve the stability of the arc plate 22, symmetric sliders 24 are slidably arranged on the bearing surface of the bearing plate 21. The sliding direction of the sliders 24 is the same as the sliding direction of the adjusting block 23, and the sliders 24 are located on both sides of the adjusting block 23. A connecting rod 241 is also connected between the sliders 24 and the adjusting block 23. When the adjusting rod 232 drives the adjusting block 23 to slide, it can also drive the two sliders 24 to slide synchronously. A threaded cylinder 243 is obliquely installed on the slider 24. A limiting rod 242 is threadedly connected in the threaded cylinder 243. A limiting ball 244 is installed at one end of the limiting rod 242 away from the threaded cylinder 243. A plurality of grooves adapted to the limiting balls 244 are also formed on the outer side of the arc plate 22.

[0050] When the adjusting rod 232 drives the slider 24 to slide to a predetermined position, the limiting rod 242 can be rotated so that the limiting ball 244 at the top of the limiting rod 242 is adapted to the groove at the predetermined position on the outer side of the arc plate 22, thereby supporting the arc plate 22 from both sides to improve the stability of the whole arc plate 22 and the isolation sleeve.

[0051] In order to adjust the limiting rod 242 at a larger angle and make the limiting rod 242 more flexible, two connecting ears 245 are installed on the slider 24. The bottom outer side of the threaded cylinder 243 is fixed with a rotating shaft, and the rotating shaft passes through the connecting ears 245 and the connecting ears are rotatably installed. A limiting nut 246 is also threadedly connected to the outer end of the rotating shaft. When it is necessary to adjust the angle of the limiting rod 242, only the limiting nut 246 needs to be rotated.

[0052] In this embodiment, in order to ensure the stability of the isolation casing during drilling, an arc-shaped cover plate 220 is hinged to one side of the arc-shaped plate 22. A locking member is provided on the side of the arc-shaped cover plate 220 and the arc-shaped plate 22 away from their hinged ends. The locking member in this embodiment is a bolt. When the arc-shaped cover plate 220 and the arc-shaped plate 22 are locked together with the bolt, the arc-shaped cover plate 220 can restrict the outside of the isolation casing to reduce the shaking of the isolation casing upwards.

[0053] In addition, in order to reduce the frictional resistance between the arc-shaped plate 22 and the arc-shaped cover plate 220 on the isolation casing, a plurality of balls are provided on the inner sides of the arc-shaped plate 22 and the arc-shaped cover plate 220. The balls slightly protrude from the inner sides of the arc-shaped plate 22 and the arc-shaped cover plate 220 by a predetermined size, and the balls are made of rubber wear-resistant material.

[0054] In this embodiment, a sliding plate 3 is also slidably mounted on the bearing surface of the backing plate 1. The sliding direction of the sliding plate 3 is the same as the sliding direction of the slider 24. The bottom of one of the mounting seats 10 is mounted on the sliding plate 3. A driving assembly for driving the sliding plate 3 to slide is also provided on the backing plate 1.

[0055] In this embodiment, the driving assembly includes: a threaded rod 30 horizontally mounted on the bearing surface of the backing plate 1 and threaded through the sliding plate 3, and a servo motor 31 mounted on the backing plate 1 for driving the threaded rod 30 to rotate. The output shaft of the servo motor 31 is connected to the threaded rod 30. When the servo motor 31 is turned on, the sliding plate 3 can be driven to slide. When the sliding plate 3 slides, the distance between the two mounting seats 10 can be adjusted. Through this solution, the angle required when the isolation casing drills into the ground can also be adapted.

[0056] In addition, in order to further increase the scope of application of the present application, an arc-shaped groove 41 is opened on the bearing surface of the backing plate 1. A moving plate 4 is slidably mounted on the arc-shaped groove 41. It should be noted that the mounting seat 10 not mounted on the sliding plate 3 in this embodiment is mounted on the moving plate 4. A servo motor 42 is also mounted on the backing plate 1. The output shaft of the servo motor 42 faces vertically upwards, and a telescopic rod 43 is fixed on the output shaft of the servo motor 42. The end of the telescopic rod 43 away from the servo motor 42 is hinged to the outside of the moving plate 4.

[0057] When the servo motor 42 is turned on, the moving plate 4 can be driven to slide on the backing plate 1 along the arc-shaped groove 41 through the telescopic rod 43, so as to drive one of the guiding components to swing. The advantage of this setting is that the direction of the isolation casing drilling into the ground can be adapted according to actual needs, and the process of starting the drilling rig equipment is omitted. It should be noted that the support cylinder 20 away from the moving plate 4 is rotatably mounted on the mounting seat 10 on the sliding plate 3.

[0058] In addition, in order to improve the stability of the moving plate 4 when it does not slide, in this embodiment, a convex block 44 is fixed on the outer side of the moving plate 4 and above the arc-shaped groove 41. A locking rod 45 is slidably inserted vertically through the convex block 44. A plurality of locking grooves adapted to the locking rod 45 are densely arranged on the bottom wall of the arc-shaped groove 41, and the locking grooves are arranged along the extending direction of the arc-shaped groove 41. Among them, a return spring 46 is sleeved on a section above the locking rod 45. One end of the return spring 46 is fixed to the top of the locking rod 45, and the other end is fixed on the convex block 44.

[0059] When it is necessary to slide the moving plate 4, only need to lift the locking rod 45 upwards so that the locking rod 45 is withdrawn from the locking groove. When the moving plate 4 slides to a predetermined position and needs to be fixed, just release the hand. At this time, the locking rod 45 will automatically insert into the corresponding locking groove under the restoring force of the return spring 46, thereby restricting the moving plate 4.

[0060] It should be noted that the height adjustment component in this embodiment has the same structure as the driving component, and the difference lies in that the set directions are perpendicular to each other, which will not be repeated here.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A pipeline directional drilling construction method based on the through-drilling technology of guiding holes, characterized in that It includes the following steps: Step 1: Select the entry point and the exit point at a predetermined position on the ground; Step 2: Move the drilling rig equipment to a predetermined position beside the entry point and the exit point on the ground, and set up the isolation casing to prepare for drilling; Step 3: Install a guiding device at a predetermined position on the ground to guide the drilling direction of the isolation casing; Step 4: Start the drilling rig equipment so that the isolation casing drills underground from the entry point and the exit point under the guidance of the guiding device; The guiding device includes: symmetrically arranged mounting seats (10) on the bearing surface of the backing plate (1); vertically installed support rods (2) on the mounting seats (10); support cylinders (20) installed on the mounting seats (10) for the bottom ends of the support rods (2) to slide and sleeved thereon; a guiding component arranged at the top of the support rod (2) for guiding the isolation casing; and a height adjustment component arranged on the support rod (2) for adjusting the height of the support rod (2) so that there is a height difference between the support rods (2) on the mounting seats (10); The guiding component includes: a bearing plate (21) installed at the top of the support rod (2); an arc-shaped plate (22) whose bottom side is hinged on the bearing surface of the bearing plate (21) and is adapted to the outer contour of the isolation casing; an adjustment component arranged on the bearing plate (21) for driving the arc-shaped plate (22) to rotate around the hinge point to adjust the angle between the arc-shaped plate (22) and the bearing plate (21); A sliding plate (3) is slidably arranged on the bearing surface of the backing plate (1), and the bottom of one mounting seat (10) is installed on the sliding plate (3). A driving component is also arranged on the backing plate (1) for driving the sliding plate (3) to slide to adjust the distance between the two mounting seats (10); An arc-shaped groove (41) is formed on the bearing surface of the backing plate (1), and a moving plate (4) is slidably installed on the arc-shaped groove (41). The mounting seat (10) not installed on the sliding plate (3) is installed on the moving plate (4). A servo motor (42) is installed on the backing plate (1). The output shaft of the servo motor (42) is vertically upward, and a telescopic rod (43) is fixed on the output shaft of the servo motor 42. The end of the telescopic rod (43) away from the servo motor (42) is hinged outside the moving plate (4) and drives the moving plate (4) to slide on the backing plate (1) along the arc-shaped groove (41). The support cylinder (20) away from the moving plate (4) is rotatably installed on the mounting seat (10) on the sliding plate (3).

2. The pipeline directional drilling construction method based on the through-hole technology of the guide hole according to claim 1, wherein, The adjustment component includes: an adjustment block (23) slidably installed on the bearing surface of the bearing plate (21) for abutting against the bottom of the arc-shaped plate (22); a fixed block (231) fixed on the bearing plate (21); and an adjustment rod (232) threadedly inserted between the fixed block (231) and the adjustment block (23). The top of the adjustment block (23) is provided with an arc-shaped surface adapted to the outer contour of the bottom of the arc-shaped plate (22).

3. The pipeline directional drilling construction method based on the through-hole technology of guiding holes according to claim 1, wherein On the bearing surface of the bearing plate (21), symmetric sliders (24) are slidably arranged. The sliders (24) are located on both sides of the adjusting block (23), and the sliding direction is consistent with that of the adjusting block (23). A connecting rod (241) for the two is also arranged between the slider (24) and the adjusting block (23). A limiting rod (242) for abutting against the outer side of the arc-shaped plate (22) is obliquely installed on the slider (24).

4. The pipeline directional drilling construction method based on the through-hole technology of the guiding hole according to claim 3, characterized in that A threaded cylinder (243) is installed on the slider (24). The bottom of the limiting rod (242) is threadedly connected in the threaded cylinder (243). A limiting ball (244) is installed at the top of the limiting rod (242). A plurality of grooves adapted to the limiting balls (244) are arranged on the outer side of the arc-shaped plate (22).

5. The pipeline directional drilling construction method based on the through-hole technology of the guide hole according to claim 4, wherein Two connecting ears (245) are installed on the slider (24). The bottom of the threaded cylinder (243) is installed between the connecting ears (245) through a rotating shaft, and a limiting nut (246) is threadedly connected to the end of the rotating shaft.

6. The pipeline directional drilling construction method based on the through-hole technology of guide holes according to claim 1, characterized in that, An arc-shaped cover plate (220) is hinged to one side of the arc-shaped plate (22). A locking member for connecting the two is arranged on the side of the arc-shaped cover plate (220) and the arc-shaped plate (22) away from their hinged ends.

7. A pipeline directional drilling construction method based on the through-hole technology of guiding holes according to claim 1, characterized in that, The driving assembly includes: a threaded rod (30) horizontally installed on the backing plate (1) and threadedly passing through the sliding plate (3), and a servo motor (31) installed on the backing plate (1) for driving the threaded rod (30) to rotate.

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