Rapid drilling and pouring device for pile foundation engineering

Abstract

The utility model relates to the technical field of drilling machines, in particular to a rapid drilling and filling device for pile foundation engineering, which comprises a drilling machine component and a filling component, the filling component is mounted on the drilling machine component, and the drilling machine component can drive the filling component to lift; the pouring assembly comprises a driving part, a drill rod and a drill bit, the drill bit is detachably connected to the end of the drill rod, and the driving part is connected with the drill rod and used for driving the drill rod to rotate; a spraying hole is formed in the drill bit, a pouring runner is formed in the drill rod, and the pouring runner is communicated with the spraying hole; the drilling machine assembly is provided with a grouting unit, the grouting unit communicates with the grouting flow channel and is used for providing grouting slurry for the grouting flow channel, and the problems that in traditional pile foundation construction, drilling and grouting are carried out step by step, so that the stability of a pile foundation hole is lowered, and the subsequent grouting effect is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling machines, in particular to a rapid drilling and grouting device for pile foundation engineering. Background Art

[0002] Pile foundation engineering, as a basic construction technology in the field of civil engineering, is widely used in the construction of large-scale infrastructure such as high-rise buildings, bridges, ports, highways, and railways. Its principle is to set up a series of piles deep in the foundation, and use the interaction between the piles and the soil layer to effectively transfer the load of the superstructure to the deep stable stratum, so as to improve the bearing capacity, stability and seismic performance of the structure.

[0003] In traditional pile foundation construction, drilling and grouting, two core steps, are often performed separately. First, the construction team uses specialized drilling equipment, such as rotary drills or percussion drills, to excavate the pile foundation hole. After drilling is complete, the team switches to grouting equipment, such as a grouting pump or grouting machine, to inject the pre-prepared concrete slurry into the pile foundation hole. However, this step-by-step construction approach presents numerous challenges. First, the time lag between drilling and grouting can compromise the stability of the pile foundation hole. This is especially true in complex geological conditions, such as soft soils, sandy soils, or areas with abundant aquifers. The pile foundation hole may collapse or deform, making subsequent grouting more difficult. Second, the switching between drilling and grouting equipment requires additional time and manpower, extending the construction period. Furthermore, the significant time lag between drilling and grouting can hinder the grouting slurry from quickly reaching the bottom of the hole due to shrinkage, creating "voids" or "faults" that can compromise the overall strength and stability of the pile.

[0004] Therefore, in view of this, the inventors proposed a rapid drilling and grouting device for pile foundation engineering to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a rapid drilling and grouting device for pile foundation engineering, aiming to solve the problem that in traditional pile foundation construction, drilling and grouting require two sets of equipment, and the operations are performed step by step, resulting in long intervals, which easily leads to a decrease in the stability of the pile foundation hole and affects the subsequent grouting effect.

[0006] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0007] A rapid drilling and grouting device for pile foundation engineering, comprising a drilling assembly and a grouting assembly, wherein the grouting assembly is mounted on the drilling assembly and the drilling assembly is capable of driving the grouting assembly to move up and down;

[0008] The grouting assembly includes a driving member, a drill rod and a drill bit, wherein the drill bit is detachably connected to the end of the drill rod, and the driving member is connected to the drill rod to drive the drill rod to rotate;

[0009] The drill bit is provided with an injection hole, the drill rod is provided with a grouting channel, and the grouting channel is connected to the injection hole; the drilling rig assembly is provided with a grouting unit, and the grouting unit is connected to the grouting channel for providing grouting slurry to the grouting channel.

[0010] According to the above technical solution, this device integrates a drilling rig assembly and a grouting assembly. The drilling rig assembly can drive the grouting assembly to perform lifting operations. During the operation, the driving part starts, driving the drill rod and the drill bit to rotate, thereby realizing the drilling operation. After the drilling is completed, the injection hole opened on the drill bit can spray the grouting slurry into the hole. At the same time, the grouting unit on the drilling rig assembly continuously provides the grouting slurry to the grouting flow channel to ensure that the slurry can be continuously and stably injected into the borehole. The present application can complete the drilling and grouting operations through one device, and the time between drilling and grouting is greatly shortened, thereby avoiding the problem of decreased stability of the pile foundation hole caused by the traditional drilling and grouting requiring multiple equipment to be carried out step by step, and greatly improving the construction efficiency. The injection of slurry during the drilling process can enhance the bonding force between the pile body and the soil layer, and improve the bearing capacity and stability of the pile body.

[0011] Furthermore, the drilling rig assembly includes a machine body, a guide column arranged on the machine body, and a sliding seat. The sliding seat is slidably arranged on the guide column and can move along the length direction of the guide column.

[0012] Furthermore, a fixed block is provided on the guide column, a hydraulic telescopic rod is provided on the fixed block, and a piston end of the hydraulic telescopic rod is connected to the sliding seat.

[0013] According to the above technical solution, the machine body firmly supports the entire device, and the guide column installed on it provides a precise sliding track for the sliding seat. The sliding seat can move freely along the length of the guide column, achieving a high degree of flexibility. In particular, the fixed block installed on the guide column carries a hydraulic telescopic rod, the piston end of which is directly connected to the sliding seat. By controlling the telescopic action of the hydraulic telescopic rod, the height of the sliding seat and the grouting assembly it carries can be precisely adjusted, ensuring the accuracy and depth control of the drilling operation, thereby improving construction efficiency and operation precision.

[0014] Furthermore, the driving member includes a pouring member fixed on the sliding seat, a pouring cavity is opened in the pouring member, and one end of the drill rod extends into the pouring cavity; a driving motor is provided on the top of the pouring member, and the output shaft of the driving motor extends into the pouring cavity and is coaxially connected to the drill rod.

[0015] Furthermore, the driving member includes a fixing seat and a cartridge seat, the fixing seat is fixedly connected to the cartridge seat, and the perfusion chamber is located in the cartridge seat;

[0016] The cartridge seat is provided with a first through hole, which is communicated with the perfusion cavity.

[0017] Furthermore, the drill rod includes a connecting rod body and an auger, and the connecting rod body is coaxially fixedly arranged on the auger;

[0018] A first flow channel is defined in the connecting rod body, and a second flow channel is defined in the auger. The first flow channel and the second flow channel together form the perfusion flow channel.

[0019] Furthermore, a second through hole is formed on the connecting rod body, and the second through hole is used to connect the first flow channel and the perfusion cavity.

[0020] Furthermore, the drill bit includes a drilling portion and a connecting portion, and a crushing rack is formed on the drilling portion;

[0021] The connecting portion is formed with an external thread, the auger is provided with an internal thread, and the external thread is adapted to the internal thread;

[0022] The injection hole is located on the drilling portion, and the injection hole is communicated with the second flow channel.

[0023] Furthermore, the grouting unit includes a grouting barrel, a delivery pump and a delivery pipe. The grouting barrel and the delivery pump are arranged on the machine body. One end of the delivery pipe is connected to the grouting barrel, and the other end of the delivery pipe is connected to the first through hole. The delivery pump delivers the grouting slurry to the perfusion cavity through the delivery pipe.

[0024] According to the above technical solution, the grouting unit, as a key component, integrates components such as a grouting barrel, a delivery pump, and a delivery pipe. On the machine body, the grouting barrel is responsible for storing the grouting slurry, while the delivery pump provides a powerful power source. When the grouting operation is initiated, the delivery pump begins operating, using its own pressure to transport the slurry stored in the grouting barrel through the delivery pipe to the first through-hole of the barrel holder. Because the first through-hole is connected to the grouting chamber, the slurry enters the grouting chamber smoothly. At this time, the drill rod rotates and penetrates deep into the soil under the drive motor. The second through-hole in the connecting rod body ensures that the grouting chamber is connected to the first flow channel inside the drill rod, allowing the slurry to flow into the drill rod and ultimately reach the injection hole of the drill bit through the second flow channel of the auger. As the drill bit penetrates deeper and rotates, the slurry is evenly sprayed around the borehole, achieving the purpose of the grouting operation. The entire workflow is efficient and continuous, ensuring the quality and efficiency of the grouting operation.

[0025] Furthermore, a plurality of wheels are provided on the bottom of the machine body.

[0026] According to the above technical solution, the bottom of the body is equipped with several wheels, which not only provide good mobility for the entire device, but also allow workers to easily move the device to the working area by operating the wheels to prepare for subsequent drilling and grouting operations.

[0027] Beneficial effects of the utility model:

[0028] The utility model integrates a drilling rig component and a grouting component. The drilling rig component can drive the grouting component to perform lifting operations. During the operation, the driving part is started to drive the drill rod and the drill bit to rotate, and the drilling operation is realized in combination with the lifting movement. After the drilling is completed, the grouting unit on the drilling rig component is started, and the grouting unit can spray grouting slurry into the pile foundation hole through the injection hole opened on the drill bit. The grouting slurry is continuously and stably sprayed into the pile foundation hole. The drilling and grouting operations can be completed by one device, and the time between drilling and grouting is greatly shortened, avoiding the problem of decreased stability of the pile foundation hole caused by the traditional drilling and grouting requiring multiple equipment to be carried out step by step, and greatly improving the construction efficiency.

[0029] Other advantages, objectives and features of the present application will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present application. The objectives and other advantages of the present application can be achieved and obtained through the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of the utility model's rapid drilling and grouting device for pile foundation engineering;

[0031] Figure 2 This is a schematic diagram of the overall structure of the side of the rapid drilling and grouting device for pile foundation engineering of the utility model;

[0032] Figure 3 This is a front view schematic diagram of a rapid drilling and grouting device for pile foundation engineering of the utility model;

[0033] Figure 4 This is a schematic diagram of the spiral drill structure of the rapid drilling and grouting device for pile foundation engineering of the utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the drill rod of the rapid drilling and grouting device for pile foundation engineering of the utility model after being disassembled;

[0035] Figure 6 This is a schematic diagram of the drill bit in the rapid drilling and grouting device for pile foundation engineering of the utility model;

[0036] Figure 7This is a new type of rapid drilling and pouring device for pile foundation engineering Figure 4 Schematic diagram of the enlarged structure.

[0037] Among them, the drilling rig assembly 1, the body 11, the wheel 111, the guide column 12, the sliding seat 13, the fixed block 14, the hydraulic telescopic rod 15, the pouring part 16, the fixed seat 161, the cylinder seat 162, the first through hole 1621, the pouring chamber 163, the drive motor 164, the pouring assembly 2, the drive part 21, the drill rod 22, the pouring channel 221, the connecting rod body 222, the second through hole 2221, the first channel 2222, the spiral drill 223, the second channel 2231, the drill bit 23, the injection hole 231, the drilling part 233, the connecting part 232, the grouting unit 4, the grouting barrel 41, the delivery pump 42, and the delivery pipe 43. DETAILED DESCRIPTION

[0038] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended solely to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0039] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0040] This embodiment provides a rapid drilling and pouring device for pile foundation engineering, such as Figures 1 to 6 As shown, the drilling rig assembly 1 and the grouting assembly 2 are mounted on the drilling rig assembly 1. The grouting assembly 2 includes a driving member 21, a drill rod 22, and a drill bit 23. The drill bit 23 is connected to the end of the drill rod 22. The driving member 21 is connected to the drill rod 22 for driving the drill rod 22 to rotate. The drill bit 23 is provided with an injection hole 231. The drill rod 22 is provided with a grouting channel 221, which is connected to the injection hole 231. The drilling rig assembly 1 is provided with a grouting unit 4, which is connected to the grouting channel 221 and is used to provide grouting slurry to the grouting channel 221.

[0041] According to the above technical solution, the present device integrates a drilling assembly 1 and a grouting assembly 2. The drilling assembly 1 can drive the grouting assembly 2 to perform lifting operations. During the operation, the drill rod 22 and the drill bit 23 rotate, and the drilling operation is realized in combination with the lifting movement. After the drilling is completed, the grouting unit 4 on the drilling assembly 1 is started. The grouting unit 4 can spray grouting slurry into the pile foundation hole through the injection hole 231 opened on the drill bit 23. The grouting slurry is continuously and stably sprayed into the pile foundation hole. In this application, the grouting slurry is preferably cement slurry. The present application can complete the drilling and grouting operations through a single device, and the time between drilling and grouting is greatly reduced, avoiding the problem of reduced stability of the pile foundation hole caused by the traditional drilling and grouting requiring multiple devices to be carried out step by step, and greatly improving the construction efficiency.

[0042] Of course, the grouting unit 4 can also be started while drilling, and the grouting slurry can be injected into the pile foundation hole during the drilling process. The injection of the grouting slurry during the drilling process can enhance the bonding force between the pile body and the soil layer, and improve the bearing capacity and stability of the subsequent installed pile body.

[0043] As a preferred embodiment, the present application prefers the form of drilling first and then grouting.

[0044] As a preferred embodiment, the drilling rig assembly 1 includes a body 11, a guide column 12 provided on the body 11, and a sliding seat 13. The sliding seat 13 is slidably provided on the guide column 12 and can move along the length direction of the guide column 12. A fixed block 14 is provided on the guide column 12, and a hydraulic telescopic rod 15 is provided on the fixed block 14. The piston end of the hydraulic telescopic rod 15 is connected to the sliding seat 13. The body 11 firmly supports the entire device, and the guide column 12 installed thereon provides a sliding track for the sliding seat 13. The sliding seat 13 can move along the length direction of the guide column 12 (that is, the length of the guide column 12). Figure 3 The guide post 12 can be moved up and down (in the vertical direction), achieving a high degree of flexibility. In particular, the fixed block 14 mounted on the guide post 12 carries a hydraulic telescopic rod 15, the piston end of which is directly connected to the sliding seat 13. By controlling the telescopic movement of the hydraulic telescopic rod 15, the height of the sliding seat 13 and the grouting assembly 2 it carries can be precisely adjusted, ensuring the accuracy and depth control of the drilling operation, thereby improving construction efficiency and precision.

[0045] As a preferred embodiment, Figure 3As shown, the driving member 21 includes a pouring member 16 fixed to the sliding seat 13. The pouring member 16 defines a pouring chamber 163, into which the top end of the drill rod 22 extends. A drive motor 164 is provided at the top of the pouring member 16. The output shaft of the drive motor 164 extends into the pouring chamber 163 and is coaxially connected to the drill rod 22. The driving member 21 includes a fixed seat 161 and a cartridge seat 162. The fixed seat 161 is fixedly connected to the cartridge seat 162. The pouring chamber 163 is located within the cartridge seat 162. The cartridge seat 162 defines a first through hole 1621, which communicates with the pouring chamber 163.

[0046] Furthermore, the drill rod 22 includes a connecting rod body 222 and an auger 223, and the connecting rod body 222 is coaxially fixed on the auger 223; a first flow channel 2222 is opened in the connecting rod body 222, and a second flow channel 2231 is opened in the auger 223, and the first flow channel 2222 and the second flow channel 2231 together form an injection flow channel 221; a second through hole 2221 is opened on the connecting rod body 222, and the second through hole 2221 is used to connect the first flow channel 2222 and the injection chamber 163, and the drill bit 23 includes a drilling part 233 and a connecting part 232, and a crushing rack is formed on the drilling part 233; an external thread is formed on the connecting part 232, and an internal thread is opened on the auger 223, and the external thread is adapted to the internal thread; the injection hole 231 is located on the drilling part 233, and the injection hole 231 is connected to the second flow channel 2231.

[0047] According to the above technical solution, the driving member 21 is firmly installed through the fixing seat 161, and the grouting chamber 163 in the cylinder seat 162 serves as a transfer station for the grouting slurry. The drill rod 22 is composed of a connecting rod body 222 and an auger 223, which are coaxially fixed. The first flow channel 2222 and the second flow channel 2231 inside together constitute the grouting flow channel 221 for conveying the slurry. When the device is started, the delivery pump 42 in the grouting unit 4 delivers the slurry from the grouting cylinder 41 through the delivery pipe 43 into the first through hole 1621 of the cylinder seat 162, and the slurry then enters the grouting chamber 163. At this time, the second through hole 2221 on the connecting rod body 222 is used to connect the grouting chamber 163 with the first flow channel 2222, so that the grouting slurry can flow into the interior of the drill rod 22. As the drill rod 22 and drill bit 23 rotate and penetrate the soil layer driven by the drive motor, the grouting slurry enters the injection hole 231 of the drill bit 23 through the second flow channel 2231 of the auger 223 and is ultimately ejected into the drill hole. The drilling portion 233 of the drill bit 23 is equipped with a crushing rack, which effectively breaks up the soil layer. The external thread connects to the internal thread of the auger 223, ensuring the secure installation and easy removal of the drill bit 23.

[0048] As a preferred embodiment, the grouting unit 4 includes a grouting barrel 41, a delivery pump 42 and a delivery pipe 43. The grouting barrel 41 and the delivery pump 42 are arranged on the machine body 11. One end of the delivery pipe 43 is connected to the grouting barrel 41, and the other end of the delivery pipe 43 is connected to the first through hole 1621. The delivery pump 42 delivers the grouting slurry to the perfusion cavity 163 through the delivery pipe 43.

[0049] According to the above technical solution, the grouting unit 4, as a key component, integrates components such as a grouting barrel 41, a delivery pump 42, and a delivery pipe 43. On the machine body 11, the grouting barrel 41 is responsible for storing the grouting slurry, while the delivery pump 42 provides a powerful power source. When the grouting operation is initiated, the delivery pump 42 begins operation, using its own pressure to transport the slurry stored in the grouting barrel 41 through the delivery pipe 43 to the first through hole 1621 of the barrel holder 162. Because the first through hole 1621 is connected to the grouting chamber 163, the slurry enters the grouting chamber 163 smoothly. At this time, the drill rod 22 rotates under the drive motor 161 and penetrates deep into the soil. The second through hole 2221 on the connecting rod body 222 ensures that the grouting chamber 163 is connected to the first flow channel 2222 within the drill rod 22, allowing the grouting slurry to flow into the drill rod 22 and ultimately reach the injection hole 231 of the drill bit 23 through the second flow channel 2231 of the auger 223. As the drill bit 23 penetrates and rotates, the grouting slurry is evenly sprayed around the borehole, achieving the purpose of the grouting operation. The entire workflow is efficient and continuous, ensuring the quality and efficiency of the grouting operation.

[0050] Furthermore, if Figure 2 As shown, the bottom of the body 11 is provided with a plurality of wheels 111. The bottom of the body 11 is equipped with a plurality of wheels 111, which not only provide good mobility for the entire device, but also allow the staff to easily move the device to the working area by operating the wheels 111 to prepare for subsequent drilling and grouting operations.

[0051] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention shall fall within the protection scope of the present invention.

Claims

1. Rapid drilling and grouting device for pile foundation engineering, characterized in that: include: A drilling assembly (1) and a pouring assembly (2), wherein the pouring assembly (2) is mounted on the drilling assembly (1), and the drilling assembly (1) is capable of driving the pouring assembly (2) to rise and fall; The grouting assembly (2) comprises a driving member (21), a drill rod (22) and a drill bit (23), wherein the drill bit (23) is detachably connected to the end of the drill rod (22), and the driving member (21) is connected to the drill rod (22) and is used to drive the drill rod (22) to rotate; The drill bit (23) is provided with a spray hole (231), the drill rod (22) is provided with a grouting channel (221), and the grouting channel (221) is connected to the spray hole (231); the drilling rig assembly (1) is provided with a grouting unit (4), and the grouting unit (4) is connected to the grouting channel (221) and is used to provide grouting slurry to the grouting channel (221).

2. The rapid drilling and grouting device for pile foundation engineering according to claim 1, characterized in that: The drilling rig assembly (1) comprises a machine body (11), a guide column (12) arranged on the machine body (11), and a sliding seat (13); the sliding seat (13) is slidably arranged on the guide column (12) and can move along the length direction of the guide column (12).

3. The rapid drilling and grouting device for pile foundation engineering according to claim 2, characterized in that: A fixed block (14) is provided on the guide column (12), a hydraulic telescopic rod (15) is provided on the fixed block (14), and a piston end of the hydraulic telescopic rod (15) is connected to the sliding seat (13).

4. The rapid drilling and grouting device for pile foundation engineering according to claim 3, characterized in that: The driving member (21) includes a pouring member (16) fixed on the sliding seat (13), a pouring cavity (163) is provided in the pouring member (16), and one end of the drill rod (22) extends into the pouring cavity (163); a driving motor (164) is provided at the top of the pouring member (16), and an output shaft of the driving motor (164) extends into the pouring cavity (163) and is coaxially connected to the drill rod (22).

5. The rapid drilling and grouting device for pile foundation engineering according to claim 4, characterized in that: The filling piece (16) comprises a fixing seat (161) and a cartridge seat (162), wherein the fixing seat (161) is fixedly connected to the cartridge seat (162), and the filling cavity (163) is located in the cartridge seat (162); A first through hole (1621) is provided on the cartridge seat (162), and the first through hole (1621) is communicated with the perfusion cavity (163).

6. The rapid drilling and grouting device for pile foundation engineering according to claim 5, characterized in that: The drill rod (22) comprises a connecting rod body (222) and an auger (223), wherein the connecting rod body (222) is coaxially fixedly arranged on the auger (223); A first flow channel (2222) is provided in the connecting rod body (222), and a second flow channel (2231) is provided in the auger (223); the first flow channel (2222) and the second flow channel (2231) together form a perfusion flow channel (221).

7. The rapid drilling and grouting device for pile foundation engineering according to claim 6, characterized in that: A second through hole (2221) is provided on the connecting rod body (222), and the second through hole (2221) is used to connect the first flow channel (2222) and the perfusion chamber (163).

8. The rapid drilling and grouting device for pile foundation engineering according to claim 7, characterized in that: The drill bit (23) comprises a drilling portion (233) and a connecting portion (232), wherein a crushing rack is formed on the drilling portion (233); The connecting portion (232) is formed with an external thread, the auger (223) is provided with an internal thread, and the external thread is adapted to the internal thread; The injection hole (231) is located on the drilling portion (233), and the injection hole (231) is connected to the second flow channel (2231).

9. The rapid drilling and grouting device for pile foundation engineering according to claim 8, characterized in that: The grouting unit (4) comprises a grouting barrel (41), a delivery pump (42) and a delivery pipe (43); the grouting barrel (41) and the delivery pump (42) are arranged on the machine body (11); one end of the delivery pipe (43) is connected to the grouting barrel (41), and the other end of the delivery pipe (43) is connected to the first through hole (1621); the delivery pump (42) delivers the grouting slurry to the grouting cavity (163) through the delivery pipe (43).

10. The rapid drilling and grouting device for pile foundation engineering according to any one of claims 2 to 9, characterized in that: A plurality of wheels (111) are provided at the bottom of the machine body (11).

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