A construction equipment and method for grouting reinforcement of a water-adjacent water fault zone

Abstract

This invention discloses a grouting reinforcement construction equipment and method for water-bearing fault zones, relating to the field of borehole grouting equipment. The invention includes an auxiliary positioning part that clamps and fixes the drill rod structure during assembly to extend its overall length. A new drill rod assembly is then installed at the top of the drill rod structure without the need for manual clamping and positioning with pliers or other tools. This makes drill rod assembly more convenient and faster, effectively improving assembly efficiency and reducing manpower and costs during grouting. Grouting guide grooves are provided in the drill rod assembly, drill bit assembly, and connecting part. These grooves connect sequentially after assembly, forming a grouting channel that runs through the borehole grouting section. This allows for direct grouting reinforcement after drilling is completed in the borehole grouting section.

Description

Technical Field

[0001] This invention belongs to the field of drilling and grouting equipment, and more specifically, it relates to a grouting reinforcement construction equipment and construction method for water-bearing fault zones. Background Technology

[0002] Grouting reinforcement, as a core geological reinforcement method, is widely used in geotechnical engineering and low-carbon oil extraction. For example, when carrying out oil extraction or foundation pit engineering in areas adjacent to water-moving fault zones, grouting reinforcement is often required for these geologically complex sections to effectively prevent the risk of ground collapse and water seepage.

[0003] The current common grouting process generally includes drilling, disassembling drill rods, installing grouting pipes, sealing the hole, connecting the grouting pipes, and grouting. In actual drilling, drill rods are usually spliced ​​one by one to reach the target depth. Furthermore, the splicing operation largely relies on manual labor using tools such as clamps to position and fix the drill rods inside the hole, resulting in a cumbersome drill rod assembly process and limited work efficiency. In addition, after the hole is formed, all drill rods must be disassembled and removed, and then the grouting pipes must be reinstalled for grouting. This repetitive operation further increases the complexity of the process and reduces the overall reinforcement construction efficiency. Summary of the Invention

[0004] In response to the problems in related technologies, this invention proposes a grouting reinforcement construction equipment and method for water-bearing fault zones, in order to overcome the aforementioned technical problems existing in the existing related technologies.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a grouting reinforcement construction device for a water-bearing fault zone, comprising a rotary drive unit, a lifting drive unit, a drilling and grouting unit, and an auxiliary positioning unit. The rotary drive unit can cooperate with the lifting drive unit to drive the drilling and grouting unit to rotate downwards and drill. The drilling grouting section includes a drill rod assembly, a drill bit assembly, and a connecting part. Multiple drill rod assemblies can be sequentially assembled and connected through the connecting part to form a drill rod structure. The bottom end of the drill rod structure is equipped with the drill bit assembly through the connecting part. Grouting guide grooves are provided in the drill rod assembly, the drill bit assembly, and the connecting part, so that after the drill rod assembly, the drill bit assembly, and the connecting part are sequentially assembled and connected, multiple grouting guide grooves can be sequentially connected to form a grouting channel that runs through the drilling grouting section. The auxiliary positioning part can clamp and fix the drill rod structure when the drill rod assembly is added to the top of the drill rod structure. The auxiliary positioning part can also release the clamping of the drill rod structure when the drilling and grouting part rotates and drills.

[0006] Preferably, the drill rod assembly, drill bit assembly, and connecting part are all provided with double grouting guide grooves, and after the drill rod assembly, drill bit assembly, and connecting part are assembled and connected in sequence, the corresponding grouting guide grooves are connected in sequence to form a double grouting flow channel with concentric inner and outer parts that runs through the grouting part of the borehole.

[0007] Preferably, the drill pipe assembly includes a drill pipe and a grouting pipe. The grouting pipe can be positioned and installed on the inner ring of the drill pipe through a connecting part, and the grouting pipe has an inner grouting channel. An outer grouting channel is formed between the outer wall of the grouting pipe and the inner wall of the drill pipe.

[0008] Preferably, the connecting part includes a connector, and both ends of the connector are provided with connecting posts. The connecting posts can be fixedly inserted into the end of the drill rod. The connecting posts are provided with connecting holes and guide holes. The grouting pipe can be fixedly inserted into the connecting holes, and the connecting holes at both ends of the connector are interconnected so that the internal grouting channels in the grouting pipes at both ends of the connector can be connected through the connecting holes. The guide holes are connected to the external grouting channels, and the guide holes at both ends of the connector are interconnected so that the external grouting channels in the drill rods at both ends of the connector can be connected through the guide holes.

[0009] Preferably, the drill bit assembly includes a drill bit that can be fixedly inserted into the connecting post, and the drill bit is provided with a central grouting hole communicating with the connecting hole and an external grouting hole communicating with the guide hole; the connecting part is rotatably inserted into the drill rod assembly and the drill bit assembly via threads.

[0010] Preferably, the auxiliary positioning part includes a clamping drive part and a plurality of positioning chucks. The plurality of positioning chucks are arranged circumferentially on the outer ring of the drill pipe structure. The clamping drive part can drive the plurality of positioning chucks to move synchronously to perform centering clamping, so that the plurality of positioning chucks synchronously abut against and clamp the surface of the drill pipe structure, or synchronously move and separate from the drill pipe structure.

[0011] Preferably, the clamping drive unit includes a rotary drive assembly and multiple limiting seats. The multiple limiting seats are arranged in a circle around the outer ring of the drill rod structure. A drive block is slidably mounted on the limiting seat via a slide rail. The positioning chuck is fixedly mounted on the front end of each drive block. A support plate is fixedly installed on the outer end of the limiting seat, and a screw is rotatably installed on the support plate through a bearing. The drive block is provided with a threaded hole that can be connected to the screw. The rotary drive assembly can drive multiple screws to rotate synchronously in the forward or reverse direction. The rotary drive assembly includes a clamping hydraulic shaft, a sliding seat, and a geared disc. The geared disc is rotatably mounted on the outer ring of the support plate. A bevel gear ring is fixedly mounted on the geared disc. A bevel gear that meshes with the bevel gear ring is fixedly mounted on the outer end of the screw. The sliding seat is slidably mounted on one side of the geared disc via a slide rail. A rack that meshes with the geared disc is fixedly mounted on one side of the sliding seat. The telescopic end of the clamping hydraulic shaft is fixedly connected to the sliding seat so that the clamping hydraulic shaft can drive the sliding seat to reciprocate and slide along the tangential direction of the geared disc.

[0012] Preferably, the rotary drive unit includes a rotary drive unit, a drive rod, and a turntable. The rotary drive unit can drive the turntable to rotate. The drive rod is slidably inserted into the center hole of the turntable, and the drive rod and the turntable are radially locked so that the drive rod can rotate synchronously when the turntable rotates. The bottom end of the drive rod can be fixedly connected to the drill rod assembly through a connecting part, and the inside of the drive rod is provided with a slurry conveying channel communicating with the grouting channel in the drilling grouting part. The rotary drive unit includes a positioning seat, a motor, and a drive shaft. The turntable is rotatably installed in the positioning seat, and a driven bevel gear is fixedly installed on the outer ring of the top surface of the turntable. The drive shaft is rotatably installed on one side of the positioning seat. A transmission bevel gear that meshes and drives with the driven bevel gear is fixedly installed at one end of the drive shaft, and a driven wheel is fixedly installed at the other end of the drive shaft. A driving wheel is driven at the output end of the motor, and the driving wheel and the driven wheel are connected by a transmission belt.

[0013] Preferably, the lifting drive unit includes a lifting seat and a hydraulic lifting shaft. The hydraulic lifting shaft can drive the lifting seat to move up and down. The lifting seat is rotatably connected to the upper end of the drive rod. A rotary joint is installed at the top of the lifting seat. The rotary joint is rotatably connected to the top of the drive rod. The rotary joint is provided with a slurry inlet that communicates with the slurry conveying channel inside the drive rod.

[0014] This invention also discloses a grouting reinforcement construction method for water-bearing fault zones, the specific steps of which are as follows: The drilling and grouting unit is driven to rotate downward by the cooperation of the rotary drive unit and the lifting drive unit. When the drilling and grouting part rotates and moves downward, it drills downward through the drill bit assembly. When the top of the drill rod structure is about to move down to the ground height, the drill rod structure is clamped and fixed by the auxiliary positioning part, and the rotation drive part and the lifting drive part are moved upward and separated from the top of the drill rod structure. Then, the drill rod assembly is connected and installed at the top of the drill rod structure through the connecting part to increase the length of the drill rod structure. Then, the rotary drive and the lifting drive work together to drive the drilling and grouting unit to continue rotating downwards, repeating the drilling and drill rod assembly steps until the drill bit assembly drills into the water-bearing fault zone. Grout is then delivered from top to bottom through the grouting channel of the drilling and grouting unit to reinforce the water-bearing fault zone.

[0015] The present invention has the following beneficial effects: 1. This invention includes an auxiliary positioning unit that clamps and fixes the drill rod structure during assembly to extend its overall length. New drill rod components can then be installed at the top of the drill rod structure without the need for manual clamping and positioning with pliers or other tools. This makes drill rod assembly more convenient and faster, effectively improving assembly efficiency and reducing manpower required for grouting, thus lowering costs. Furthermore, compared to manual clamping, the hydraulically driven mechanical clamping of the auxiliary positioning unit provides higher positioning accuracy, improving the assembly precision of the drill rod components and ultimately enhancing the drilling and grouting effect of the equipment.

[0016] 2. In this invention, grouting guide grooves are provided in the drill rod assembly, drill bit assembly, and connecting part, so that after the drill rod assembly, drill bit assembly, and connecting part are assembled and connected in sequence, they can be connected in sequence through multiple grouting guide grooves to form a grouting channel that runs through the borehole grouting part. Thus, after drilling is completed in the borehole grouting part, grouting reinforcement construction can be carried out directly through the grouting channel without disassembling and removing the drill rod and then installing and inserting the grouting pipe for grouting construction. This simplifies the grouting reinforcement construction process and can significantly improve the efficiency of grouting reinforcement construction.

[0017] 3. In this invention, the drill rod assembly includes a drill rod and a grouting pipe. The grouting pipe can be positioned and installed on the inner ring of the drill rod through a connecting part. The grouting pipe has an inner grouting channel, and an outer grouting channel is formed between the outer wall of the grouting pipe and the inner wall of the drill rod. At the same time, the connecting part is provided with connecting holes and guide holes that communicate with the inner and outer grouting channels respectively. This allows the drill rod assembly and the connecting part to form a double grouting channel with concentric inner and outer grouting channels in the grouting part of the borehole when they are assembled sequentially. This enables simultaneous grouting of cement slurry and water glass through the double grouting channels. After mixing in the water-bearing fault zone, the cement slurry and water glass will react and solidify rapidly, effectively sealing the water flow and filling the cracks, thus preventing the grout from being washed away by the water flow. This is beneficial to improving the grouting reinforcement effect in the water-bearing fault zone. Furthermore, when the drill rod assembly is connected and assembled through the connecting part, it can quickly and reliably connect to form a concentric double-layer drill rod structure, which can improve the sealing and isolation performance between the two grouting channels, prevent cross-contamination of grout, and improve the grouting effect.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is one of the three-dimensional structural schematic diagrams of the grouting reinforcement construction equipment of the present invention; Figure 2 This is a side view of the grouting reinforcement construction equipment of the present invention; Figure 3 This is the second three-dimensional structural schematic diagram of the grouting reinforcement construction equipment of the present invention; Figure 4 This is the third three-dimensional structural schematic diagram of the grouting reinforcement construction equipment of the present invention; Figure 5 This is the fourth three-dimensional structural schematic diagram of the grouting reinforcement construction equipment of the present invention; Figure 6 For the present invention Figure 5 A magnified structural diagram at point A; Figure 7 For the present invention Figure 5 A magnified structural diagram at point B; Figure 8 This is the fifth three-dimensional structural schematic diagram of the grouting reinforcement construction equipment of the present invention; Figure 9 For the present invention Figure 8 A magnified structural diagram at point C; Figure 10 This is one of the three-dimensional structural schematic diagrams of the drilling and grouting part of the present invention; Figure 11 This is the second three-dimensional structural schematic diagram of the drilling and grouting part of the present invention; Figure 12 This is the third three-dimensional structural schematic diagram of the drilling and grouting part of the present invention; Figure 13 This is the fourth three-dimensional structural schematic diagram of the drilling and grouting part of the present invention; Figure 14 For the present invention Figure 13 A magnified structural diagram at point D; Figure 15 This is a schematic diagram of grout flow in the drilling and grouting section of the present invention.

[0021] In the diagram: 1. Walking unit; 11. Hydraulic support shaft; 12. Support seat; 2. Rotary drive unit; 21. Positioning seat; 22. Motor; 23. Drive rod; 24. Drive shaft; 25. Drive wheel; 26. Transmission belt; 27. Driven wheel; 28. Turntable; 29. ​​Driven bevel gear; 210. Transmission bevel gear; 3. Lifting drive unit; 31. Lifting seat; 32. Hydraulic lifting shaft; 33. Rotary joint; 4. Drilling and grouting unit; 41. Drill rod; 42. Connector ; 43. Drill bit; 44. Connecting column; 45. Connecting hole; 46. Guide hole; 47. Central grouting hole; 48. External grouting hole; 49. Grouting pipe; 410. External grouting channel; 411. Internal grouting channel; 5. Auxiliary positioning part; 51. Positioning chuck; 52. Drive block; 53. Limit seat; 54. Screw; 55. Support plate; 56. Bevel gear ring; 57. Clamping hydraulic shaft; 58. Sliding seat; 59. Rack; 510. Bevel gear; 511. Gear disc. Detailed Implementation

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0024] Example 1 Please see Figure 1 , Figure 2 , Figure 10 , Figure 11 As shown, this embodiment is a grouting reinforcement construction device for a water-bearing fault zone, including a rotary drive unit 2, a lifting drive unit 3, a drilling and grouting unit 4 and an auxiliary positioning unit 5. The rotary drive unit 2 can cooperate with the lifting drive unit 3 to drive the drilling and grouting unit 4 to rotate downward and drill. The drilling grouting section 4 includes a drill rod assembly, a drill bit assembly, and a connecting part. Multiple drill rod assemblies can be sequentially assembled and connected through the connecting part to form a drill rod structure. The bottom end of the drill rod structure is equipped with a drill bit assembly through the connecting part. Grouting guide grooves are provided in the drill rod assembly, the drill bit assembly, and the connecting part, so that after the drill rod assembly, the drill bit assembly, and the connecting part are sequentially assembled and connected, multiple grouting guide grooves can be sequentially connected to form a grouting channel that runs through the drilling grouting section 4. The auxiliary positioning part 5 can clamp and fix the drill rod structure when the drill rod assembly is added to the top of the drill rod structure. The auxiliary positioning part 5 can also release the clamping of the drill rod structure when the drilling and grouting part 4 rotates and drills.

[0025] When performing grouting reinforcement on a water-bearing fault zone, the rotary drive unit 2 and the lifting drive unit 3 work together to drive the drilling grouting unit 4 to rotate downwards. As the drilling grouting unit 4 rotates downwards, it drills downwards through the drill bit assembly. When the top of the drill rod structure is about to reach ground level, the auxiliary positioning unit 5 clamps and fixes the drill rod structure, and the rotary drive unit 2 and the lifting drive unit 3 are moved upwards to separate from the top of the drill rod structure. Then, the connecting part is used to continue connecting and installing the drill rod assembly at the top of the drill rod structure to increase the length of the drill rod structure. Next, the rotary drive unit 2 and the lifting drive unit 3 work together to drive the drilling grouting unit 4 to continue rotating downwards, repeating the drilling and drill rod assembly steps until the drill bit assembly drills into the water-bearing fault zone. Grout is then delivered from top to bottom through the grouting channel of the drilling grouting unit 4 to perform grouting reinforcement on the water-bearing fault zone. The auxiliary positioning part 5 clamps and fixes the drill rod structure during assembly to extend its overall length, allowing new drill rod components to be installed at the top without the need for manual clamping and positioning with pliers or other tools. This makes assembly more convenient and faster, effectively improving assembly efficiency and reducing manpower required for grouting, thus lowering costs. Furthermore, compared to manual clamping, mechanical clamping and positioning via the auxiliary positioning part 5 offers higher positioning accuracy, thereby improving... The high assembly precision of the drill rod assembly improves the drilling and grouting effect of the equipment. Grouting guide grooves are provided in the drill rod assembly, drill bit assembly, and connecting parts. After the drill rod assembly, drill bit assembly, and connecting parts are assembled and connected in sequence, they can be connected in sequence through multiple grouting guide grooves to form a grouting channel that runs through the drilling and grouting part 4. This allows grouting and reinforcement construction to be carried out directly through the grouting channel after drilling is completed in the drilling and grouting part 4, without having to disassemble and remove the drill rod structure and then install and insert the grouting pipe for grouting construction. This simplifies the grouting and reinforcement construction process and can significantly improve the efficiency of grouting and reinforcement construction.

[0026] Furthermore, the grouting reinforcement construction equipment also includes a walking unit 1, a rotary drive unit 2, a lifting drive unit 3, a drilling and grouting unit 4, and an auxiliary positioning unit 5, all mounted on the walking unit 1. The walking unit 1 can drive the entire equipment to move and adjust, thereby facilitating multi-point drilling and grouting construction at the construction site and improving the grouting reinforcement effect. The walking unit 1 includes a tracked vehicle, with hydraulic support shafts 11 fixedly installed at each of the four corners. Support seats 12 are fixedly installed on the telescopic ends at the bottom of the hydraulic support shafts 11. The tracked vehicle is used for movement to facilitate the movement and adjustment of the equipment in complex geographical conditions. By setting hydraulic support shafts 11 and support seats 12 at the four corners of the tracked vehicle, during drilling and grouting, the hydraulic support shafts 11 can drive the support seats 12 to descend and ground, thereby providing auxiliary support for the tracked vehicle, improving the stability of the tracked vehicle on the ground, and thus improving the stability of the equipment during drilling and grouting.

[0027] Example 2 Please see Figure 1 , Figure 2 , Figures 10-15 As shown, the difference between this embodiment and the above embodiment is that the drill rod assembly, drill bit assembly and connecting part are all provided with double grouting guide grooves, and after the drill rod assembly, drill bit assembly and connecting part are assembled and connected in sequence, the corresponding grouting guide grooves can be connected in sequence to form a double grouting flow channel with concentric inner and outer parts of the through borehole grouting part 4. The dual grouting channels allow for the simultaneous injection of cement grout and water glass. After mixing in the water-bearing fault zone, the cement grout and water glass react and solidify rapidly, effectively sealing the water flow and filling the cracks. This prevents the grout from being washed away by the water flow, thus improving the grouting reinforcement effect in the water-bearing fault zone.

[0028] Specifically, the drill pipe assembly includes a drill pipe 41 and a grouting pipe 49. The grouting pipe 49 can be positioned and installed on the inner ring of the drill pipe 41 through a connecting part, and the grouting pipe 49 has an inner grouting channel 411 inside. An outer grouting channel 410 is formed between the outer wall of the grouting pipe 49 and the inner wall of the drill pipe 41. The connecting part includes a connector 42, and each end of the connector 42 is provided with a connecting post 44. The connecting post 44 can be fixedly inserted into the end of the drill pipe 41. The connecting post 44 is provided with a connecting hole 45 and a guide hole 46. The grouting pipe 49 can be fixedly inserted into the connecting hole 45, and the two ends of the connector 42 are provided with a connecting post 44. The connecting holes 45 at both ends of the connector 42 are interconnected so that the inner grouting channels 411 in the grouting pipes 49 at both ends of the connector 42 can be connected through the connecting holes 45. The guide holes 46 are connected to the outer grouting channels 410, and the guide holes 46 at both ends of the connector 42 are interconnected so that the outer grouting channels 410 in the drill rods 41 at both ends of the connector 42 can be connected through the guide holes 46. The drill bit assembly includes a drill bit 43, which can be fixedly inserted and connected to the connecting column 44. The drill bit 43 is provided with a central grouting hole 47 that communicates with the connecting holes 45 and an outer grouting hole 48 that communicates with the guide holes 46. The connecting part is rotatably connected to the drill rod assembly and drill bit assembly via threads. Through the cooperation of the drill rod 41, the connector 42 and the grouting pipe 49, not only can the drill rod structure be quickly connected and assembled, but two grouting channels, an inner grouting channel 411 and an outer grouting channel 410, are also formed in the assembled drill rod structure. During grouting, the inner grouting channel 411 is connected to the water glass delivery pump on the ground, and water glass is delivered and grouted through the inner grouting channel 411. The outer grouting channel 410 is connected to the cement slurry delivery pump on the ground, and cement slurry is delivered and grouted through the outer grouting channel 410.

[0029] Furthermore, sealing structures (sealing rings or sealing gaskets) are installed at the joints between the connecting parts and the drill pipe assembly and drill bit assembly to improve the sealing performance of the joints and prevent slurry leakage or cross-contamination.

[0030] Example 3 Please see Figure 1 , Figure 5 , Figures 7-9 As shown, the difference between this embodiment and the above embodiment is that the auxiliary positioning part 5 includes a clamping drive part and a plurality of positioning chucks 51. The plurality of positioning chucks 51 are arranged in a circle on the outer ring of the drill pipe structure. The clamping drive part can drive the plurality of positioning chucks 51 to move synchronously to perform centering clamping, so that the plurality of positioning chucks 51 synchronously abut against and clamp the surface of the drill pipe structure, or synchronously move and separate from the drill pipe structure.

[0031] The drill rod structure is centered and clamped by multiple positioning chucks 51, which not only facilitates the positioning of the drill rod structure so that new drill rod components can be assembled on the drill rod structure to extend the length of the drill rod structure, but also enables precise centering and positioning of the drill rod structure so that the assembled drill rod structure can be accurately docked and connected to the upper rotary drive unit 2. Compared with manual positioning with the assistance of clamps, the centering and clamping by the positioning chucks 51 has higher positioning accuracy, thereby improving the positioning accuracy and assembly accuracy of the drill rod components, and thus improving the drilling and grouting effect of the equipment.

[0032] Specifically, the clamping drive unit includes a rotary drive assembly and multiple limit seats 53. The multiple limit seats 53 are arranged circumferentially on the outer ring of the drill rod structure. A drive block 52 is slidably mounted on the limit seat 53 via a slide rail. A positioning chuck 51 is fixedly mounted on the front end of each drive block 52. A support plate 55 is fixedly mounted on the outer end of the limit seat 53. A screw 54 is rotatably mounted on the support plate 55 via a bearing. A threaded hole is provided in the drive block 52 that can connect with the screw 54. The rotary drive assembly can drive the multiple screws 54 to rotate synchronously in the forward or reverse direction. The rotary drive assembly includes a clamping hydraulic shaft 57, a sliding seat 58, and a gear disk 511. The gear disk 511 is rotatably mounted on the outer ring of the support plate 55. A bevel gear ring 56 is fixedly mounted on the gear disk 511. A bevel gear 510 that meshes with the bevel gear ring 56 is fixedly mounted on the outer end of the screw 54. The sliding seat 58 is slidably mounted on one side of the gear disk 511 via a slide rail. A rack 59 that meshes with the gear disk 511 is fixedly mounted on one side of the sliding seat 58. The telescopic end of the clamping hydraulic shaft 57 is fixedly connected to the sliding seat 58 so that the clamping hydraulic shaft 57 can drive the sliding seat 58 to reciprocate and slide along the tangential direction of the gear disk 511.

[0033] The limiting seat 53 and the support plate 55 are installed on the tracked vehicle near the ground. When the drill rod structure is about to drill down and enter the borehole (when the uppermost connector 42 is located in the inner ring of the positioning chuck 51), the rotary drive unit 2 and the lifting drive unit 3 stop driving the drill rod structure to continue rotating downwards. Then, the clamping hydraulic shaft 57 drives the sliding seat 58 to translate along the tangential direction of the gear disk 511, so that the sliding seat 58 drives the gear disk 511 to rotate through the meshing of the rack 59. At this time, the gear disk 511 drives multiple bevel gears 510 to rotate synchronously through the meshing of the bevel gear ring 56, so that the multiple bevel gears 510 simultaneously drive multiple screws. The screw 54 rotates synchronously, and when the screw 54 rotates, it drives the corresponding drive block 52 to move along the limit seat 53 towards the connector 42 through the thread transmission until multiple drive blocks 52 drive multiple positioning chucks 51 to move synchronously and abut against the surface of the connector 42, so as to center and clamp the connector 42, thereby facilitating the subsequent installation of grouting pipe 49 and drill rod 41 on the connector 42. Through the cooperation of bevel gear ring 56, bevel gear 510 and screw 54, multiple positioning chucks 51 can be driven to move synchronously so that multiple positioning chucks 51 can cooperate to center and clamp. The screw 54 has a self-locking function, which can improve the clamping stability. When the drill pipe assembly is completed and drilling is to continue, the clamping hydraulic shaft 57 drives the sliding seat 58 to move and reset in the opposite direction along the tangent of the gear disc 511, so that the sliding seat 58 drives the gear disc 511 to rotate in the opposite direction through the meshing of the rack 59. At this time, the gear disc 511 drives multiple bevel gears 510 to rotate in the opposite direction synchronously through the meshing of the bevel gear ring 56, so that the multiple bevel gears 510 simultaneously drive multiple screws 54 to rotate in the opposite direction synchronously. When the screws 54 rotate in the opposite direction, they drive the corresponding drive blocks 52 to move away from the connector 42 along the limit seat 53 through the threaded transmission, until the drive blocks 52 drive the positioning chuck 51 to move and separate from the surface of the connector 42, releasing the clamping of the connector 42, and then the drilling can continue.

[0034] Furthermore, a photoelectric sensor capable of detecting the drilling position of the grouting section 4 is installed between the gaps of adjacent positioning chucks 51. This photoelectric sensor is connected to the control system of the grouting reinforcement construction equipment. When the photoelectric sensor detects that the drill rod structure is about to be drilled down and submerged into the borehole (i.e., when the uppermost connector 42 is detected to be located in the inner ring of the positioning chuck 51), the control system controls the rotary drive unit 2 and the lifting drive unit 3 to stop driving the drill rod structure to continue rotating downward. After that, the control system controls the clamping hydraulic shaft 57 to extend and retract, so that the clamping hydraulic shaft 57 drives the positioning chuck 51 to center and clamp the drill rod structure.

[0035] Example 4 Please see Figures 1-6 The difference between this embodiment and the above embodiments is that the rotary drive unit 2 includes a rotary drive unit, a drive rod 23, and a turntable 28. The rotary drive unit can drive the turntable 28 to rotate. The drive rod 23 is slidably inserted into the center hole of the turntable 28, and the drive rod 23 and the turntable 28 are radially locked so that the drive rod 23 can rotate synchronously when the turntable 28 rotates. The bottom end of the drive rod 23 can be fixedly connected to the drill rod assembly through a connecting part, and the inside of the drive rod 23 is provided with a grout delivery channel communicating with the grouting channel in the drilling grouting unit 4; The drive unit includes a positioning base 21, a motor 22, and a drive shaft 24. A turntable 28 is rotatably mounted inside the positioning base 21, and a driven bevel gear 29 is fixedly mounted on the outer ring of the top surface of the turntable 28. The drive shaft 24 is rotatably mounted on one side of the positioning base 21. A transmission bevel gear 210 that meshes and drives with the driven bevel gear 29 is fixedly mounted on one end of the drive shaft 24, and a driven wheel 27 is fixedly mounted on the other end of the drive shaft 24. A driving wheel 25 is driven and mounted on the output end of the motor 22. The driving wheel 25 and the driven wheel 27 are connected by a transmission belt 26. The lifting drive unit 3 includes a lifting seat 31 and a hydraulic lifting shaft 32. The hydraulic lifting shaft 32 can drive the lifting seat 31 to move up and down. The lifting seat 31 is rotatably connected to the upper end of the drive rod 23. A rotary joint 33 is installed at the top of the lifting seat 31. The rotary joint 33 is rotatably connected to the top of the drive rod 23. A slurry inlet is provided on the rotary joint 33, which communicates with the slurry conveying channel inside the drive rod 23.

[0036] The drive rod 23 is a square rod. During rotary drilling, the motor 22 drives the drive shaft 24 to rotate via the drive wheel 25, transmission belt 26, and driven wheel 27. When the drive shaft 24 rotates, it drives the turntable 28 to rotate through the meshing of the transmission bevel gear 210 and the driven bevel gear 29. The rotation of the turntable 28 drives the drive rod 23, which is slidably engaged with it, to rotate synchronously. This, in turn, drives the drilling and grouting part 4 connected below the drive rod 23 to rotate synchronously. At the same time, the hydraulic lifting shaft 32 drives the lifting seat 31 to move downward synchronously, thereby driving the drilling and grouting part 4 to gradually rotate downward and drill. When it is necessary to assemble the extended drill rod structure, the motor 22 first... The motor 22 and hydraulic lifting shaft 32 stop working, causing the drill rod structure to stop rotating and drilling. Then, the drill rod structure is held and fixed by the auxiliary positioning part 5. Then, the reverse rotation of the motor 22 drives the drive rod 23 to rotate in the opposite direction to the drilling. At the same time, the hydraulic lifting shaft 32 extends and drives the drive rod 23 upward to separate the drive rod 23 from the connector 42. Meanwhile, the drive rod 23 continues to rise to leave enough distance between the drive rod 23 and the connector 42 to install a new drill rod 41. Then, the new drill rod 41, grouting pipe 49 and connector 42 are connected and installed between the connector 42 and the drive rod 23 to extend the length of the drill rod structure. Furthermore, the inner ring of the drive rod 23 is fitted with a grouting pipe 49 via a connector 42, thereby providing an inner grouting channel 411 and an outer grouting channel 410 within the drive rod 23. The rotary joint 33 is provided with grouting ports that communicate with the inner grouting channel 411 and the outer grouting channel 410 respectively. During grouting, the inner grouting channel 411 and the outer grouting channel 410 are connected to the water glass grouting pump and the cement grouting pump on the ground via the grouting ports on the rotary joint 33, respectively, to achieve the delivery and grouting of water glass and cement grout.

[0037] Example 5 This embodiment discloses a grouting reinforcement construction method for a water-bearing fault zone, the specific steps of which are as follows: The rotary drive unit 2 and the lifting drive unit 3 work together to drive the drilling and grouting unit 4 to rotate downwards. When the drilling and grouting part 4 rotates and moves downward, it drills downward through the drill bit assembly. When the top of the drill rod structure is about to move down to the ground height, the auxiliary positioning part 5 clamps and fixes the drill rod structure, and moves the rotation drive part 2 and the lifting drive part 3 upward to separate from the top of the drill rod structure. Then, the drill rod assembly is connected and installed at the top of the drill rod structure through the connecting part to increase the length of the drill rod structure. Then, the rotary drive unit 2 and the lifting drive unit 3 work together to drive the drilling and grouting unit 4 to continue rotating downwards, repeating the drilling and drill rod assembly steps until the drill bit assembly drills into the water-bearing fault zone. Grout is then delivered from top to bottom through the grouting channel of the drilling and grouting unit 4 to reinforce the water-bearing fault zone.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, because according to the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to the present invention.

Claims

1. A grouting reinforcement construction device for a water-bearing fault zone, characterized in that: It includes a rotary drive unit, a lifting drive unit, a drilling and grouting unit, and an auxiliary positioning unit. The rotary drive unit can cooperate with the lifting drive unit to drive the drilling and grouting unit to rotate downwards for drilling. The drilling grouting section includes a drill rod assembly, a drill bit assembly, and a connecting part. Multiple drill rod assemblies can be sequentially assembled and connected through the connecting part to form a drill rod structure. The bottom end of the drill rod structure is equipped with the drill bit assembly through the connecting part. Grouting guide grooves are provided in the drill rod assembly, the drill bit assembly, and the connecting part, so that after the drill rod assembly, the drill bit assembly, and the connecting part are sequentially assembled and connected, multiple grouting guide grooves can be sequentially connected to form a grouting channel that runs through the drilling grouting section. The auxiliary positioning part can clamp and fix the drill rod structure when the drill rod assembly is spliced ​​and added to the top of the drill rod structure. The auxiliary positioning part can also release the clamping of the drill rod structure when the drilling and grouting part rotates and drills. It also includes a traveling unit, on which the rotary drive unit, lifting drive unit, drilling and grouting unit and auxiliary positioning unit are all mounted, so that the traveling unit can drive the rotary drive unit, lifting drive unit, drilling and grouting unit and auxiliary positioning unit to move and adjust synchronously.

2. The grouting reinforcement construction equipment for a water-bearing fault zone according to claim 1, characterized in that: The drill rod assembly, drill bit assembly, and connecting part are all provided with double grouting guide grooves. After the drill rod assembly, drill bit assembly, and connecting part are assembled and connected in sequence, the corresponding grouting guide grooves can be connected in sequence to form a double grouting flow channel with concentric arrangement inside and outside the grouting part of the through borehole.

3. The grouting reinforcement construction equipment for a water-bearing fault zone according to claim 2, characterized in that: The drill pipe assembly includes a drill pipe and a grouting pipe. The grouting pipe can be positioned and installed on the inner ring of the drill pipe through a connecting part, and the grouting pipe has an internal grouting channel. An external grouting channel is formed between the outer wall of the grouting pipe and the inner wall of the drill pipe.

4. The grouting reinforcement construction equipment for a water-bearing fault zone according to claim 3, characterized in that: The connecting part includes a connector, and each end of the connector is provided with a connecting post. The connecting post can be fixedly inserted into the end of the drill rod. The connecting post is provided with a connecting hole and a guide hole. The grouting pipe can be fixedly inserted into the connecting hole, and the connecting holes at both ends of the connector are interconnected so that the internal grouting flow channel in the grouting pipe at both ends of the connector can be connected through the connecting hole. The guide hole is connected to the external grouting flow channel, and the guide holes at both ends of the connector are interconnected so that the external grouting flow channel in the drill rod at both ends of the connector can be connected through the guide hole.

5. The grouting reinforcement construction equipment for a water-bearing fault zone according to claim 4, characterized in that: The drill bit assembly includes a drill bit that can be fixedly connected to the connecting column, and the drill bit is provided with a central grouting hole communicating with the connecting hole and an external grouting hole communicating with the guide hole.

6. The grouting reinforcement construction equipment for a water-bearing fault zone according to claim 1, characterized in that: The auxiliary positioning part includes a clamping drive part and multiple positioning chucks. The multiple positioning chucks are arranged circumferentially on the outer ring of the drill pipe structure. The clamping drive part can drive the multiple positioning chucks to move synchronously to perform centering clamping, so that the multiple positioning chucks synchronously abut against and clamp the surface of the drill pipe structure, or synchronously move and separate from the drill pipe structure.

7. The grouting reinforcement construction equipment for a water-bearing fault zone according to claim 6, characterized in that: The clamping drive unit includes a rotary drive assembly and multiple limiting seats. The multiple limiting seats are arranged in a circle on the outer ring of the drill rod structure. A drive block is slidably mounted on the limiting seat via a slide rail. The positioning chuck is fixedly mounted on the front end of each drive block. A support plate is fixedly installed on the outer end of the limiting seat. A screw is rotatably installed on the support plate through a bearing. A threaded hole that can be connected to the screw is provided in the drive block. The rotary drive assembly can drive multiple screws to rotate synchronously in the forward or reverse direction.

8. The grouting reinforcement construction equipment for a water-bearing fault zone according to claim 1, characterized in that: The rotary drive unit includes a rotary drive unit, a drive rod, and a turntable. The rotary drive unit can drive the turntable to rotate. The drive rod is slidably inserted into the center hole of the turntable, and the drive rod and the turntable are radially locked so that the drive rod can rotate synchronously when the turntable rotates. The bottom end of the drive rod can be fixedly connected to the drill rod assembly through a connecting part, and the inside of the drive rod is provided with a grout delivery channel that communicates with the grouting channel in the borehole grouting part.

9. The grouting reinforcement construction equipment for a water-bearing fault zone according to claim 8, characterized in that: The lifting drive unit includes a lifting seat and a hydraulic lifting shaft. The hydraulic lifting shaft can drive the lifting seat to move up and down. The lifting seat is rotatably connected to the upper end of the drive rod. A rotary joint is installed at the top of the lifting seat. The rotary joint is rotatably connected to the top of the drive rod. The rotary joint is provided with a slurry inlet that communicates with the slurry conveying channel inside the drive rod.

10. A grouting reinforcement construction method for a water-bearing fault zone, using the grouting reinforcement construction equipment for a water-bearing fault zone as described in any one of claims 1-9, characterized in that, The specific steps are as follows: The drilling and grouting unit is driven to rotate downward by the cooperation of the rotary drive unit and the lifting drive unit. When the drilling and grouting part rotates and moves downward, it drills downward through the drill bit assembly. When the top of the drill rod structure is about to move down to the ground height, the drill rod structure is clamped and fixed by the auxiliary positioning part, and the rotation drive part and the lifting drive part are moved upward and separated from the top of the drill rod structure. Then, the drill rod assembly is connected and installed at the top of the drill rod structure through the connecting part to increase the length of the drill rod structure. Then, the rotary drive and the lifting drive work together to drive the drilling and grouting unit to continue rotating downwards, repeating the drilling and drill rod assembly steps until the drill bit assembly drills into the water-bearing fault zone. Grout is then delivered from top to bottom through the grouting channel of the drilling and grouting unit to reinforce the water-bearing fault zone.

Images