Drilling and high-pressure grouting integrated device

Abstract

The invention discloses a drilling and high-pressure grouting integrated device which comprises a drill rod, a drill bit, a drilling machine, a mud discharging device and a grouting device, a grouting pipeline is arranged in the drill rod, a spiral conveying belt is welded to the outer wall of the grouting pipeline, the outer side of the spiral conveying belt is welded to the inner wall of the drill rod, the drill rod is in threaded connection with the drill bit, and the drill bit is connected with the drilling machine. A detachable connecting device is arranged at the end, away from the drill bit, of the drill rod. When the device is used for drilling, the spiral conveying belt is connected with the sludge discharging device through the detachable connecting device. When the device is used for grouting, the grouting pipeline is connected with the grouting device through the detachable connecting device. The conveying belt and the grouting pipeline are simultaneously arranged in the drill rod of the device, the drilling function and the grouting function are integrated on the same drill rod, one rod has two purposes, the number of equipment and conversion of construction procedures are reduced, the construction efficiency is improved, independent drilling equipment and independent grouting equipment do not need to be arranged respectively, and the space of a construction site is saved.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering, and in particular to an integrated drilling and high-pressure grouting device. Background Art

[0002] High-pressure grouting technology is a technology that uses a high-pressure pump to inject slurry into the formation, where the slurry is bacterial liquid or microorganisms, thereby improving the properties of the formation or achieving other engineering purposes. It is widely used in foundation reinforcement, anti-seepage and leak plugging, slope management and other fields. In actual engineering, drilling and grouting are two key steps. Drilling technology mainly includes impact drilling, rotary drilling, spiral drilling, etc. These technologies are mainly used in geological surveys, mineral mining and other fields. Grouting technology includes static pressure grouting, high-pressure jet grouting, composite grouting, etc., which are mainly used in foundation reinforcement, anti-seepage and leak plugging and other projects. However, traditional high-pressure grouting technology usually requires the drilling and grouting equipment to be operated separately, the operation steps are cumbersome, inefficient, and require a large space. And because the equipment is separated, it is necessary to carry and install the equipment twice, which increases the cost and prolongs the construction period.

[0003] In order to solve the above problems, the prior art has proposed some devices and methods. For example, the announcement number is CN116731819A, which is an integrated vibration table experimental device for microbial temperature-controlled grouting, gasification and anti-liquefaction. By integrating microbial cultivation with grouting, the process of removing samples from the sample box and loading samples on the vibration table test is omitted. The setting of the electromagnetic vibration table can achieve precise control of the amplitude and frequency of the sample box. The structure is relatively simple and the installation is relatively convenient. The announcement number is CN117966749A, which is a drilling double-cylinder grouting integrated machine for enhanced liquid mixing. Through static mixing tubes, semi-dynamic mixing tubes, and dynamic mixing tubes, the liquid is mixed multiple times and in multiple ways, so that the liquid is peeled, divided, cross-mixed, fused, punctured, etc., to achieve enhanced mixing of the liquid, thereby ensuring the quality of grouting. The announcement number is CN117927155A, which is a microbial grouting drilling machine and grouting method for reinforcing sand soil. A dual-liquid drill pipe is combined with a dual-liquid grouting pump to inject two different slurries into one drill pipe without contact. It can ensure that the two solutions do not contact each other during the injection of the binder solution and the microbial solution, so as to prevent the mutual reaction between the two and cause blockage inside the drill pipe.

[0004] Although the existing technology has solved the problem of separate operations for drilling and grouting to a certain extent, there are still some shortcomings. First, some devices integrate multiple modules, resulting in a complex structure of the device, which is difficult to install and maintain, and is not conducive to rapid deployment and use at the construction site. Secondly, some equipment is large in size and heavy in weight, which may not be convenient to move, which may limit the scope of use of the equipment, especially in some occasions with small spaces, and it is difficult to meet the needs of flexible construction. In addition, the complex structure of the equipment will also increase the difficulty of operation, which may affect the accuracy and efficiency of the operation and increase the labor intensity of the construction personnel. These problems have limited the application and development of existing high-pressure grouting technology to a certain extent, and need to be further optimized and improved. Summary of the invention

[0005] The invention provides a drilling high-pressure grouting integrated device, which solves the problems of low grouting efficiency and equipment utilization rate in the existing high-pressure grouting technology.

[0006] In order to solve the above technical problems, the present invention provides an integrated device for drilling high-pressure grouting, comprising: a drill rod, a drill bit, a drilling rig, a mud discharge device and a grouting device, a grouting pipe is arranged inside the drill rod, a spiral conveyor belt is welded to the outer wall of the grouting pipe, the outer side of the spiral conveyor belt is welded to the inner wall of the drill rod, the drill rod and the drill bit are connected by threads, and a detachable connecting device is arranged at one end of the drill rod away from the drill bit; when the device is drilling, the spiral conveyor belt is connected to the mud discharge device through the detachable connecting device; when the device is grouting, the grouting pipe is connected to the grouting device through the detachable connecting device.

[0007] Preferably, the drill bit comprises a plurality of blades, which are arranged spirally around a central axis of the drill bit, with a certain distance between adjacent blades.

[0008] Preferably, the mud discharge device includes a first buffer tank, a second buffer tank, a sand and gravel pump, a first motor and a second motor. The bottom of the first buffer tank is connected to the drill pipe through a detachable connecting device. The first buffer tank, the second buffer tank and the sand and gravel pump are connected by a pipeline. The second buffer tank is connected to the first motor, and the sand and gravel pump is connected to the second motor.

[0009] Preferably, a spray device is provided on the top of the first buffer tank.

[0010] Preferably, a first filter is provided between the second buffer tank and the first motor.

[0011] Preferably, the grouting device includes a material cup barrel, a high-pressure pump, a third buffer tank, and a fourth buffer tank. The bottom of the third buffer tank is connected to the drill rod through a detachable connecting device. The third buffer tank, the fourth buffer tank and the material cup barrel are connected by a pipeline. The high-pressure pump is arranged between the fourth buffer tank and the material cup barrel.

[0012] Preferably, a first pressure gauge is provided between the third buffer tank and the fourth buffer tank, a second pressure gauge is provided between the fourth buffer tank and the material cup barrel, a gearbox is provided on the pipeline between the fourth buffer tank and the material cup barrel, and the high-pressure pump is connected to the gearbox.

[0013] Preferably, a second filter screen is provided between the material cup barrel and the fourth buffer tank.

[0014] Preferably, a roller is provided at the bottom of the fourth buffer tank.

[0015] Preferably, a casing is provided around the drill rod near the ground.

[0016] The benefits of the present invention include at least:

[0017] 1. A conveyor belt and a grouting pipe are set inside the drill rod, integrating the drilling and grouting functions on the same drill rod, realizing dual-purpose use of one rod, reducing the number of equipment and the conversion of construction procedures, and improving construction efficiency;

[0018] 2. The threaded connection between the drill rod and the drill bit facilitates the installation, disassembly and replacement of the drill bit. The appropriate drill bit can be selected according to different formation conditions. At the same time, a detachable connection device is provided at the end of the drill rod away from the drill bit, so that the mud discharge device and the grouting device can be quickly replaced when switching between different processes of drilling and grouting. By replacing different drill bits, mud discharge devices or grouting devices, it can adapt to a variety of formation conditions and engineering requirements, such as drilling formations of different hardness, grouting of different types of slurries, etc., which enhances the versatility and flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a drill rod device according to an embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the assembly of a drill rod device and a mud discharge device according to an embodiment of the present invention;

[0021] Figure 3 It is a schematic diagram of the assembly of a drill rod device and a grouting device according to an embodiment of the present invention;

[0022] Figure 4 A schematic structural diagram of a drill bit according to an embodiment of the present invention;

[0023] Figure 5A schematic diagram of the structure of a mud discharge device according to an embodiment of the present invention;

[0024] Figure 6 It is a schematic structural diagram of a grouting device according to an embodiment of the present invention.

[0025] In the figure: 1-drill rod; 2-drill bit; 3-drilling rig; 4-grouting pipe; 5-screw conveyor belt; 6-detachable connecting device; 7-blade; 8-first buffer tank; 9-second buffer tank; 10-sand and gravel pump; 11-first motor; 12-second motor; 13-spraying device; 14-first filter screen; 15-material cup barrel; 16-high-pressure pump; 17-third buffer tank; 18-fourth buffer tank; 19-first pressure gauge; 20-second pressure gauge; 21-gearbox; 22-second filter screen; 23-roller; 24-casing. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0027] The embodiment of the present invention provides an integrated drilling and high-pressure grouting device, comprising: a drill rod 1, a drill bit 2, a drilling rig 3, a mud discharge device and a grouting device.

[0028] like Figure 1 As shown, a grouting pipe 4 is arranged inside the drill rod 1, and a spiral conveyor 5 is welded to the outer wall of the grouting pipe 4, and the outer side of the spiral conveyor 5 is welded to the inner wall of the drill rod 1. The drill rod 1 is connected to the drill bit 2 by a thread, and a detachable connecting device 6 is arranged at one end of the drill rod 1 away from the drill bit 2; when the device is used for drilling, the spiral conveyor 5 is connected to the mud discharge device through the detachable connecting device 6; when the device is used for grouting, the grouting pipe 4 is connected to the grouting device through the detachable connecting device 6.

[0029] Specifically, the embodiment of the present invention simultaneously sets a grouting pipe 4 and a spiral conveyor belt 5 inside the drill rod 1, integrates the drilling and grouting functions on the same drill rod, realizes dual-purpose of one rod, reduces the number of equipment and the conversion of construction procedures, and improves construction efficiency. The spiral conveyor belt of the embodiment of the present invention is made of high-chromium alloy steel. The spiral conveyor belt can effectively lift and transport the soil and rocks entering the drill rod 1 by using its spiral structure during rotation. Compared with other forms of conveyor belts, it can more continuously transfer soil and rocks from the bottom of the drill rod 1 to the mud discharge device, improves the efficiency of mud discharge, reduces the risk of mud accumulation and blockage in the drill rod, and ensures that the drilling operation can proceed smoothly.

[0030] The drill rod 1 and the drill bit 2 are connected by threads, which facilitates the installation, removal and replacement of the drill bit. A suitable drill bit can be selected according to different formation conditions.

[0031] A detachable connection device 6 is provided at one end of the drill rod 1 away from the drill bit 2, so that the mud discharge device and the grouting device can be quickly and conveniently replaced when switching between different processes of drilling and grouting, thereby improving the utilization rate of the equipment and reducing the idle cost of the equipment.

[0032] The outer shell of the drill rod 1 in the embodiment of the present invention is hard, with a diameter of about 150 cm and a thickness of about 30 cm; the diameter of the grouting pipe 4 is about 20 cm, and the thickness of the pipe column is about 5 cm; the width of the spiral conveyor belt 5 is about 30 cm; the detachable connecting device is a snap-on quick connector made of aluminum alloy.

[0033] like Figure 2 As shown, during drilling, the spiral conveyor belt 5 is connected to the mud discharge device through a detachable connection device 6, which can timely and effectively discharge the soil and rocks generated during the drilling process to prevent soil and rock accumulation from affecting the drilling progress. Figure 3 As shown, during grouting, the grouting pipe 4 is connected to the grouting device through the detachable connecting device 6 to ensure that the slurry is smoothly injected into the target area. The entire construction process proceeds in an orderly manner, reducing construction time and labor costs.

[0034] The drill bit 2 includes a plurality of blades 7, such as Figure 4 As shown, the blades 7 are arranged spirally around the central axis of the drill bit 2, and a certain distance is maintained between adjacent blades.

[0035] Specifically, the blades 7 are arranged in a spiral around the central axis of the drill bit 2. When the drill bit 2 rotates, it can continuously cut the stratum. Compared with blades that are not arranged in a spiral, it can more effectively break the stratum rock and soil, improve the efficiency and speed of drilling, and make the drilling process smoother. At the same time, the spirally arranged blades make the drill bit more evenly stressed during the drilling process. Each blade bears similar cutting forces at different times, avoiding the situation where the local force is too large or too small, so that the drill bit maintains a stable direction during drilling, reduces the deviation of the drilling trajectory, helps to improve the accuracy and quality of drilling, and meets the requirements of the project for the verticality or specific direction of the drilling.

[0036] A certain distance is maintained between adjacent blades to form gaps, and during the drilling process, the crushed soil and rocks can smoothly enter these channels. As the drill bit 2 rotates and advances, the soil and rocks will enter the drill rod 1 along the channels, avoiding the accumulation of soil and rocks around the drill bit, preventing the drilling progress from being affected by soil and rocks blocking, and ensuring the continuity of the drilling operation.

[0037] like Figure 5As shown, the mud discharge device includes a first buffer tank 8, a second buffer tank 9, a sand and gravel pump 10, a first motor 11 and a second motor 12. Soil and stone enter the mud discharge device through a spiral conveyor belt 5. The bottom of the first buffer tank 8 is connected to the drill pipe 1 through a detachable connecting device. The first buffer tank 8, the second buffer tank 9 and the sand and gravel pump 10 are connected through a pipeline. The second buffer tank 9 is connected to the first motor 11, and the sand and gravel pump 10 is connected to the second motor 12.

[0038] Specifically, by setting the first buffer tank 8 and the second buffer tank 9, the soil and rocks enter the first buffer tank 8 from the drill pipe 1 and then flow into the second buffer tank 9. The two-stage buffer structure can effectively stabilize the flow state of the soil and rocks, avoid the impact on the subsequent equipment caused by the sudden change of the soil and rock flow and pressure, and ensure the smooth progress of the entire mud discharge process. The gravel pump 10 is driven by the second motor 12, which can provide strong suction and pressure to extract the soil and rocks in the buffer tank and transport them to the designated location, ensuring that the soil and rocks can overcome factors such as pipeline resistance and gravity and be discharged smoothly. The second buffer tank 9 is connected to the first motor 11 and works in conjunction with the gravel pump 10 to improve the efficiency and effect of mud discharge, speed up the mud discharge speed, and reduce the residence time of soil and rocks in the device, thereby improving the overall efficiency of the drilling operation.

[0039] A spray device 13 is provided on the top of the first buffer tank 8 .

[0040] Specifically, the soil and rocks generated when the device is drilling enter the drill rod 1 through the gap between the blades, and the spray device 13 is used to convert the soil and rocks into mud. During the drilling process, the soil and rocks that enter the drill rod form mud and are then transferred to the first buffer tank. The water flow sprayed by the spray device can convert the soil and rocks into mud, and the soil and rocks that have become mud can be discharged faster through the mud discharge device. Since the mud can be evenly distributed in components such as pipes and buffer tanks, it can be transported out more efficiently under the action of the sand and gravel pump 10. Compared with directly processing solid soil and rocks, processing mud reduces the restrictions on factors such as the size and shape of soil and rock particles, and the mud discharge system can work at a more stable speed and flow rate, thereby improving the mud discharge efficiency of the entire device.

[0041] When solid soil and rocks are transported in the equipment, they may cause wear and tear on the equipment due to collision and friction, especially on the inner wall of the pipe and pump body. After converting the soil and rocks into mud, the violent friction and collision between the solids and between the solids and the equipment are reduced, the degree of equipment wear is reduced, the service life of the mud discharge device is extended, the frequency of equipment maintenance and replacement is reduced, and the construction cost is reduced.

[0042] A first filter screen 14 is disposed between the second buffer tank 9 and the first motor 11 .

[0043] Specifically, the first filter 14 can effectively intercept larger particles or other impurities in the mud and prevent these impurities from entering the first motor 11, thereby protecting the normal operation of the motor and reducing the possibility of failure of the motor due to wear or blockage by impurities.

[0044] like Figure 6 As shown, the grouting device includes a material cup barrel 15, a high-pressure pump 16, a third buffer tank 17, and a fourth buffer tank 18. The bottom of the third buffer tank 17 is connected to the drill pipe 1 through a detachable connecting device. The third buffer tank 17, the fourth buffer tank 18 and the material cup barrel 15 are connected through a pipeline. The high-pressure pump 16 is arranged between the fourth buffer tank 18 and the material cup barrel 15.

[0045] Specifically, the high-pressure pump 16 is arranged between the fourth buffer tank 18 and the material cup barrel 15, and can provide a stable pressure for the slurry, ensure the stable flow of the slurry in the pipeline, and accurately control the grouting pressure. By adjusting the parameters of the high-pressure pump 16, the slurry can be injected into the target area at a suitable pressure according to different engineering requirements and formation conditions, thereby improving the grouting effect and engineering quality.

[0046] The third buffer tank 17 and the fourth buffer tank 18 play a multi-level buffering role. The slurry in the cup barrel 15 first flows into the fourth buffer tank 18, then into the third buffer tank 17, and finally into the drill pipe 1. In this process, the buffer tank can balance the flow and pressure fluctuations of the slurry, prevent the interruption or instability of grouting caused by uneven slurry supply or sudden pressure change, and ensure the continuity of the grouting operation.

[0047] A first pressure gauge 19 is provided between the third buffer tank 17 and the fourth buffer tank 18 , a second pressure gauge 20 is provided between the fourth buffer tank 18 and the material cup barrel 15 , a gearbox 21 is provided on the pipeline between the fourth buffer tank 18 and the material cup barrel 15 , and the high-pressure pump 16 is connected to the gearbox 21 .

[0048] Specifically, the first pressure gauge 19 and the second pressure gauge 20 are provided to monitor the pressure changes between the third buffer tank 17 and the fourth buffer tank 18 and between the fourth buffer tank 18 and the material cup barrel 15 in real time. The first pressure gauge 19 and the second pressure gauge 20 are externally connected to an intelligent pressure monitoring system to issue an early warning before the pressure approaches the pressure threshold. The operator can timely understand the pressure conditions at different stages of the grouting process based on these pressure data, so as to take prompt measures to adjust the pressure when abnormal pressure occurs, ensure that the grouting pressure is always within an appropriate range, and ensure the grouting effect and engineering quality.

[0049] The gearbox 21 is connected to the high-pressure pump 16, and the speed and torque of the high-pressure pump 16 can be adjusted through the gearbox 21. Different slurry characteristics and grouting conditions may require different pump output parameters, and the gearbox 21 can adapt the high-pressure pump according to actual conditions.

[0050] A second filter screen 22 is disposed between the material cup barrel 15 and the fourth buffer tank 18 .

[0051] Specifically, the second filter screen 22 can intercept impurities in the slurry flowing from the cup barrel 15 to the fourth buffer tank 18, prevent larger particles or other impurities from entering subsequent equipment, avoid wear and blockage of the equipment, and ensure the normal operation of the equipment.

[0052] A roller 23 is provided at the bottom of the fourth buffer pool 18 .

[0053] Specifically, the setting of the roller 23 makes it extremely convenient to move the grouting device between the construction site or different working areas. Without the need for large-scale lifting equipment or a lot of manpower to carry, its position can be easily changed by pushing or pulling, which greatly improves the mobility and flexibility of the equipment and saves time and labor costs for equipment transfer. During the construction process, it may be necessary to adjust the layout of the grouting device according to the actual situation on site. The roller 23 can easily realize the change of the relative position of the grouting device, making the layout of the entire grouting device more reasonable, adapting to different construction site conditions and process requirements, and helping to optimize the construction operation process and improve construction efficiency.

[0054] A casing 24 is arranged around the drill pipe 1 near the ground.

[0055] Specifically, during the drilling process, the casing 24 can prevent the hole wall from collapsing. Especially in soft formations or formations prone to collapse, the casing 24 can provide lateral support, maintain the shape and stability of the hole wall, ensure the safety of the drilling operation, and avoid drilling failures and equipment damage caused by hole wall collapse. At the same time, the casing 24 can effectively isolate surface water, prevent surface water from flowing into the borehole, avoid changes in the properties of the mud in the borehole or cause water accumulation in the hole, affect the normal progress of drilling and subsequent construction, maintain the stability of the mud in the borehole and the liquid level, and ensure the smooth progress of mud discharge and grouting.

[0056] The device of the present invention comprises the following steps when actually used:

[0057] S1. Check whether the equipment is in normal working condition.

[0058] S2. Connect the grouting pipe to the first buffer tank via a snap-on detachable connection device, and then start the drilling rig.

[0059] S3. Start the spiral rising conveyor belt. As the drill bit drills, the mud will enter the first buffer tank through the spiral rising conveyor belt and be discharged under the action of the sand and gravel pump and the first motor. Apply fluororesin coating on the inner wall of the formed borehole and check the wear condition regularly.

[0060] S4. Disassemble the first buffer tank from the snap-on detachable connecting device and replace it with the third buffer tank of the grouting device.

[0061] S5. Add the used slurry into the material cup bucket, start the high-pressure pump to transport the slurry to the fourth buffer tank through the grouting pipeline, and finally enter the target area through the grouting pipeline inside the drill pipe. During this period, the pressure in the pipeline is monitored by the first high-pressure gauge and the second high-pressure gauge to ensure smooth grouting.

[0062] The present invention combines a drilling device with a grouting device to achieve dual-purposes, effectively solving the limitations of existing high-pressure grouting technology, integrating drilling and grouting equipment into one, making operation more convenient, saving space, improving work efficiency, eliminating the steps of carrying and installing equipment twice, reducing costs, and shortening construction period. The drilling and grouting equipment can be easily replaced through a snap-on detachable connection device, thereby improving the utilization rate of the equipment.

[0063] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. Only the preferred embodiments of the present invention are expressed. The description is more specific and detailed, but it cannot be understood as limiting the scope of the present invention. As long as there is no contradiction in the combination of these technical features, they should be considered as within the scope of this specification.

[0064] It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A drilling high-pressure grouting integrated device, characterized in that: include: A drill rod (1), a drill bit (2), a drilling machine (3), a mud discharge device and a grouting device. A grouting pipe (4) is provided inside the drill rod (1). A spiral conveyor belt (5) is welded to the outer wall of the grouting pipe (4). The outer side of the spiral conveyor belt (5) is welded to the inner wall of the drill rod (1). The drill rod (1) and the drill bit (2) are connected via a thread. A detachable connecting device (6) is provided at one end of the drill rod (1) away from the drill bit (2). When the device is drilling a hole, the spiral conveyor belt (5) is connected to the mud discharge device via the detachable connecting device (6); when the device is grouting, the grouting pipe (4) is connected to the grouting device via the detachable connecting device (6).

2. The integrated drilling and high-pressure grouting device according to claim 1, characterized in that: The drill bit (2) comprises a plurality of blades (7), wherein the blades (7) are arranged in a spiral around the central axis of the drill bit (2), and a certain distance is maintained between adjacent blades.

3. The integrated drilling and high-pressure grouting device according to claim 1, characterized in that: The mud discharge device comprises a first buffer tank (8), a second buffer tank (9), a sand and gravel pump (10), a first motor (11) and a second motor (12); the bottom of the first buffer tank (8) is connected to the drill pipe (1) via a detachable connecting device (6); the first buffer tank (8), the second buffer tank (9) and the sand and gravel pump (10) are connected via a pipeline; the second buffer tank (9) is connected to the first motor (11); and the sand and gravel pump (10) is connected to the second motor (12).

4. The integrated drilling and high-pressure grouting device according to claim 3, characterized in that: A spray device (13) is provided on the top of the first buffer tank (8).

5. The integrated drilling and high-pressure grouting device according to claim 3, characterized in that: A first filter screen (14) is provided between the second buffer tank (9) and the first motor (11).

6. The integrated drilling and high-pressure grouting device according to claim 1, characterized in that: The grouting device comprises a material cup barrel (15), a high-pressure pump (16), a third buffer tank (17), and a fourth buffer tank (18); the bottom of the third buffer tank (19) is connected to the drill rod (1) via a detachable connecting device; the third buffer tank (17), the fourth buffer tank (18) and the material cup barrel (15) are connected via a pipeline; and the high-pressure pump (16) is arranged between the fourth buffer tank (18) and the material cup barrel (15).

7. The integrated drilling and high-pressure grouting device according to claim 6, characterized in that: A first pressure gauge (19) is provided between the third buffer tank (17) and the fourth buffer tank (18), a second pressure gauge (20) is provided between the fourth buffer tank (18) and the material cup barrel (15), a gearbox (21) is provided on the pipeline between the fourth buffer tank (18) and the material cup barrel (15), and the high-pressure pump (16) is connected to the gearbox (21).

8. The integrated drilling and high-pressure grouting device according to claim 6, characterized in that: A second filter screen (22) is provided between the material cup barrel (15) and the fourth buffer tank (18).

9. The integrated drilling and high-pressure grouting device according to claim 6, characterized in that: A roller (23) is provided at the bottom of the fourth buffer pool (18).

10. The integrated drilling and high-pressure grouting device according to claim 1, characterized in that: A casing (24) is arranged around the drill rod (1) near the ground.

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