A bridge pile foundation rotary drilling and pouring device and construction method

Abstract

The present application relates to the technical field of bridge pile foundation construction, and in particular to a bridge pile foundation rotary excavation and grouting device and construction method, wherein the grouting device comprises a mounting frame, a vibrating assembly, a lifting duct, a segment duct and a control assembly; a hopper for holding concrete is mounted on the mounting frame; the vibrating assembly comprises a rotating sleeve, a driving member and a vibrating rod, the vibrating rod is arranged on the rotating sleeve, and the driving member can drive the rotating sleeve to rotate to cooperate with the vibrating rod to achieve mixing and vibrating of the concrete in the hopper; the lifting duct is connected with the segment duct, and there are multiple segment ducts, which are connected end to end and extend to the bottom of the pile hole, and the rotating sleeve can drive the lifting duct and the segment duct to rise and fall; the control assembly can control the lifting duct to rise according to the pouring height of the concrete in the pile hole, so as to ensure that the depth of the segment duct buried in the concrete remains constant. The present application has the effects of simplifying the removal steps of the duct, reducing the unevenness of the concrete during diffusion, and improving the efficiency and quality of the pile construction.

Description

Technical Field

[0001] The present application relates to the technical field of bridge pile foundation construction, and in particular to a bridge pile foundation rotary drilling and grouting device and a construction method. Background Art

[0002] Bridge pile foundation construction is an important part of modern civil engineering, especially in large-scale infrastructure projects such as highways, railways and bridge construction. With the accelerated advancement of urbanization and technological progress, bridge pile foundation construction technology has also been continuously innovated and developed. Traditional methods mainly rely on manual operation and simple mechanical equipment, which are not only inefficient and labor-intensive, but also difficult to meet the needs of increasingly complex engineering projects. In recent years, the application of automation and intelligent equipment has greatly improved construction quality and efficiency.

[0003] Among them, mud rotary drilling is an efficient construction method and is widely used in bridge pile foundation construction under various geological conditions. The pile hole excavated by the mud rotary drilling is filled with mud, which can protect the wall and prevent the hole wall from collapsing. When pouring the pile body, it needs to be done in the mud. Use a catheter to extend into the bottom of the pile hole and pour concrete into the catheter. After the concrete reaches the bottom of the pile hole, the lower end of the catheter will be buried to a certain depth to prevent the mud in the pile hole from entering the catheter. With the continuous pouring of subsequent concrete, the concrete inside the pile hole continues to rise, and the catheter is lifted and gradually removed until the poured concrete reaches the designed elevation. During the pouring process, the buried depth of the catheter in the concrete is controlled between 2-6 meters, and the position of the concrete surface in the hole is measured in time and the buried depth of the catheter is adjusted.

[0004] However, the gradual lifting of the conduit needs to be dismantled in multiple times. Each time the conduit is dismantled, the large hopper above it needs to be removed. Since the large hopper is too large, the transfer process is very troublesome. When the large hopper is reset, its discharge hole and horizontality need to be calibrated and adjusted with the conduit for multiple times. The overall operation is cumbersome and inefficient, which is not conducive to the continuous pouring of pile foundation concrete. In addition, the concrete entering the hopper is easily mixed with air during the transfer process, and during the pouring, the concrete is discharged upward after falling into the pile hole by its own weight. Affected by the flow characteristics of the concrete, there will be uneven diffusion during the upward extrusion of the concrete, and it is easy for floating slurry or stone to sink to the bottom, thus affecting the quality of the pile body. Summary of the invention

[0005] In order to simplify the removal steps of the conduit, reduce the unevenness of concrete diffusion, and improve the efficiency and quality of pile construction, the present application provides a bridge pile foundation rotary drilling and grouting device and a construction method.

[0006] The present application provides a bridge pile foundation rotary drilling and grouting device that adopts the following technical solution: A bridge pile foundation rotary drilling and grouting device, comprising: A mounting frame, the mounting frame is fixedly arranged above the pile hole, and a hopper for holding concrete is installed on the mounting frame; A vibrating assembly, the vibrating assembly comprising a rotating sleeve, a driving member and a vibrating rod; the rotating sleeve is rotatably arranged on a mounting frame; the driving member is used to drive the rotating sleeve to rotate; the vibrating rod is arranged on the rotating sleeve to vibrate the concrete in the hopper; A lifting conduit, the lifting conduit is slidably arranged on the hopper, the lifting conduit is provided with a material dropping trough, and the concrete in the hopper can flow into the lifting conduit through the material dropping trough; when the rotating sleeve rotates, the lifting conduit can be driven to rise or fall in the hopper; a U-shaped baffle is arranged on the hopper, and the U-shaped baffle can seal and cover the part of the material dropping trough located outside the hopper; The segmented conduit is provided with a plurality of segmented conduits; the plurality of segmented conduits are connected end to end by a detachable connection, and the feed end of the first segmented conduit is connected to the discharge end of the lifting conduit by a detachable connection, and the discharge end of the last segmented conduit extends to the bottom of the pile hole; when the lifting conduit rises or falls, it can synchronously drive the segmented conduit to rise or fall; A control component is electrically connected to the driving member to control the lifting and lowering of the lifting guide tube. The control component can synchronously control the lifting of the lifting guide tube according to the real-time pouring height of the concrete in the pile hole so that the depth of the segment guide tube buried in the concrete is always kept constant.

[0007] By adopting the above technical scheme, the bridge pile foundation rotary drilling and grouting device can simplify the removal steps of the conduit during the construction process, reduce the unevenness of concrete diffusion, and improve the efficiency and quality of pile construction; specifically, the vibrating assembly can stir and vibrate the concrete in the hopper under the drive of the rotating sleeve, effectively remove the bubbles in the concrete, improve the density and uniformity of the concrete, and ensure the quality of the pile body; at the same time, the detachable connection between the lifting conduit and the segment conduit can be achieved by directly disassembling the segment conduit without moving the hopper, thereby avoiding the position error of the segment conduit caused by the movement of the hopper, and further improving the construction efficiency; in addition, in the process of pouring concrete in the pile hole, the control component can automatically adjust the position of the lifting conduit according to the real-time pouring height, so that the segment conduit is always buried in the concrete to a certain depth, reducing the problem of uneven diffusion of concrete during the upward extrusion process, avoiding the phenomenon of concrete slurry or stone sinking to the bottom, improving the continuity and uniformity of concrete, and further ensuring the construction quality and stability of the pile body.

[0008] Optionally, the flow meter is used to detect the mud flow discharged from the pile hole when pouring the pile body; the control host is electrically connected to the driving component and the flow meter; the lifting and lowering of the lifting duct can be controlled by the control host; the control host can calculate the pouring height of the concrete in the pile hole in real time according to the measurement value of the flow meter and synchronously control the lifting of the lifting duct, so that the depth of the segment duct buried in the concrete always remains constant.

[0009] By adopting the above technical solution, the flow meter of the control component can monitor the discharge flow of the mud in the pile hole in real time. The control host can accurately calculate the actual pouring height of the concrete based on the flow value, and automatically adjust the lifting speed of the lifting guide tube to ensure that the depth of the segment guide tube buried in the concrete remains constant. This effectively avoids errors caused by manual adjustment, improves construction accuracy and efficiency, and at the same time reduces manual intervention and labor intensity.

[0010] Optionally, a spiral groove is provided on the inner wall of the rotating sleeve, a guide block is provided on the outer wall of the lifting tube, the lifting tube is inserted into the rotating sleeve, and one end of the guide block is slidably disposed in the spiral groove to enable the lifting tube to be spirally connected to the rotating sleeve.

[0011] By adopting the above technical solution, the spiral groove on the inner wall of the rotating sleeve cooperates with the guide block on the outer wall of the lifting guide tube, so that the rotation of the rotating sleeve can be directly converted into the linear motion of the lifting guide tube; at the same time, since no additional power source is required to achieve the lifting action, the operation of the entire device is simpler and more efficient. This design not only simplifies the structure and reduces the number of transmission components, but also improves the reliability and stability of the system.

[0012] Optionally, a slide groove is provided on the U-shaped baffle, and an extension direction of the slide groove is parallel to the lifting direction of the lifting tube. A sliding block is provided on the outer wall of the lifting tube, and one end of the sliding block slides and abuts against the slide groove.

[0013] By adopting the above technical solution, the matching structure of the slide groove and the slider effectively prevents the relative rotation between the lifting duct and the U-shaped baffle during the lifting process, ensures the stability and accuracy of the movement of the lifting duct, avoids concrete leakage caused by relative rotation, and improves the safety and reliability of construction.

[0014] Optionally, the guide block is further provided with a roller, and the roller rolls against the groove wall of the spiral groove.

[0015] By adopting the above technical solution, the roller on the guide block rolls and abuts against the groove wall of the spiral groove, which can significantly reduce the friction resistance of the guide block in the spiral groove, making the rotating sleeve rotate more smoothly and improving the movement accuracy and stability of the lifting guide tube; this not only helps to improve the uniformity and density of concrete pouring, but also reduces mechanical wear and extends the service life of the equipment.

[0016] Optionally, a limiting protrusion is provided on the outer wall of the segmented conduit; it also includes a limiting assembly, the limiting assembly includes a telescopic driving member and at least two limiting plates; the two limiting plates are arranged opposite to each other, and the two limiting plates are slidably set on the mounting frame, and the telescopic driving member is used to make the two limiting plates move away from or approach each other; when the two limiting plates are close to each other, the two limiting plates can respectively abut against the outer walls on both sides of the segmented conduit to position it, and the bottom surface of the limiting protrusion can abut against the top surface of the limiting plate to prevent the segmented conduit from falling; when the two limiting plates are away from each other, the two limiting plates and the limiting protrusion do not interfere with each other.

[0017] By adopting the above technical solution, the limiting assembly can effectively fix the position of the segmented duct during the pouring process to prevent it from shaking due to external vibration or mud impact, thereby ensuring the stability and safety of the construction; at the same time, when replacing the segmented duct, the cooperation between the limiting protrusion and the limiting plate can effectively prevent the segmented duct from slipping or shifting after it is separated from the lifting duct, thereby improving the safety and reliability of the construction; in addition, the structural design simplifies the installation and disassembly process of the segmented duct, reduces the difficulty of operation for workers, and further improves the construction efficiency.

[0018] Optionally, a connecting pipe is provided between the lifting conduit and the first segment conduit; one end of the connecting pipe is connected to the discharge end of the lifting conduit, and the other end of the connecting pipe is connected to the feed end of the first segment conduit.

[0019] By adopting the above technical solution, the design of the connecting pipe can not only ensure the stable connection between the lifting duct and the first segment duct, but also can replace connecting pipes of different sizes according to actual construction needs, so that the lifting duct can be connected to segment ducts of different diameters; this flexible design enables the entire grouting device to be used in pile construction of various specifications, thereby improving the versatility and applicability of the equipment.

[0020] Optionally, when the lifting guide tube rises to the highest position, the height of the bottom end of the lifting guide tube from the top end of the pile hole is greater than the length of the segment guide tube.

[0021] By adopting the above technical solution, sufficient space can be ensured for operation when disassembling the segmented conduit, avoiding operational inconvenience caused by narrow space, and improving construction efficiency and safety.

[0022] Optionally, a sealing gasket is provided between the outer wall of the lifting conduit and the hopper.

[0023] By adopting the above technical solution, the sealing gasket can effectively prevent the concrete in the hopper from leaking to the external environment during the pouring process, ensuring the safety and cleanliness of the construction process. At the same time, the sealing gasket can also enhance the sealing performance between the lifting duct and the hopper, reduce the air entering the hopper, and avoid excessive air mixing into the concrete during the transfer process, thereby improving the quality and stability of the concrete.

[0024] Optionally, a bridge pile foundation construction method comprises the following steps: Step 1: fix the mounting frame above the pile hole, connect multiple segmented conduits end to end, connect the first segmented conduit with the lifting conduit, extend the last segmented conduit to the predetermined position at the bottom of the pile hole, and calibrate the relative position of the segmented conduit and the pile hole; Step 2: Pour the first batch of concrete into the hopper using the ball pressing method, and start the vibrator to vibrate the concrete in the hopper. The amount of the first batch of concrete should be such that the end segment guide tube is buried in the concrete to a depth of at least 1 meter. Step 3: Continue pouring concrete into the hopper, and start the control component and the drive component. The control component controls the synchronous lifting of the lifting guide tube according to the real-time concrete pouring depth in the pile hole so that the depth of the segment guide tube buried in the concrete is always kept constant. When the lifting guide tube is lifted to the highest position, stop pouring concrete into the hopper; Step 4: Remove the first segment catheter connected to the lifting catheter, and lower the lifting catheter to the next segment catheter and connect it; Step 5: Repeat steps 3 and 4 until the pile casting is completed.

[0025] By adopting the above technical scheme, the design of the vibrating assembly enables the concrete in the hopper to be fully stirred and vibrated before pouring, reducing the mixing of air and improving the density and uniformity of the concrete; the linkage design between the lifting duct and the segment duct ensures that the duct is always at a suitable buried depth during the pouring process, improving the uniformity of the concrete and improving the quality of pile construction; the introduction of the control assembly realizes precise control of the lifting duct, and can automatically adjust the position of the duct according to the actual pouring height of the concrete in the pile hole, thereby improving construction efficiency and ensuring the continuity and stability of the construction process.

[0026] In summary, this application includes the following beneficial technical effects: 1. The bridge pile foundation rotary drilling and grouting device can simplify the removal steps of the guide tube during the construction process, reduce the unevenness of concrete diffusion, and improve the efficiency and quality of pile construction; specifically, the vibrating assembly can stir and vibrate the concrete in the hopper under the drive of the rotating sleeve, effectively remove the bubbles in the concrete, improve the density and uniformity of the concrete, and ensure the quality of the pile body; at the same time, the detachable connection between the lifting guide tube and the segment guide tube can be directly disassembled without moving the hopper, thereby avoiding the position error of the segment guide tube caused by the movement of the hopper, and further improving the construction efficiency; in addition, during the pouring of concrete in the pile hole, the control component can automatically adjust the position of the lifting guide tube according to the real-time pouring height, so that the segment guide tube is always buried in the concrete to a certain depth, reducing the problem of uneven diffusion of concrete during the upward extrusion process, avoiding the phenomenon of concrete slurry or stone sinking to the bottom, improving the continuity and uniformity of concrete, and further ensuring the construction quality and stability of the pile body; 2. The flow meter of the control component can monitor the discharge flow of the mud in the pile hole in real time. The control host can accurately calculate the actual pouring height of the concrete based on the flow value, and automatically adjust the lifting speed of the lifting guide tube to ensure that the depth of the segment guide tube buried in the concrete remains constant. This effectively avoids errors caused by manual adjustment, improves construction accuracy and efficiency, and reduces manual intervention and labor intensity. 3. The limiting assembly can effectively fix the position of the segmented duct during the pouring process to prevent it from shaking due to external vibration or mud impact, thereby ensuring the stability and safety of the construction; at the same time, when replacing the segmented duct, the cooperation between the limiting protrusion and the limiting plate can effectively prevent the segmented duct from slipping or shifting after it is separated from the lifting duct, thereby improving the safety and reliability of the construction; in addition, the structural design simplifies the installation and disassembly process of the segmented duct, reduces the difficulty of operation for workers, and further improves the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0028] Figure 2 It is a schematic diagram of the internal structure of Example 1 of the present application.

[0029] Figure 3 Mainly display the internal structure of the rotating sleeve and the lifting catheter of Example 1 of the present application.

[0030] Figure 4 yes Figure 3 A partial enlarged view of part A.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. mounting frame; 2. hopper; 21. U-shaped baffle; 211. slide; 3. vibrating assembly; 31. rotating sleeve; 311. spiral groove; 32. driving member; 33. vibrating rod; 4. lifting guide tube; 41. drop chute; 42. guide block; 43. slider; 5. segment guide tube; 51. limit bump; 6. control assembly; 61. flow meter; 62. control host; 7. roller; 8. limit assembly; 81. telescopic driving member; 82. limit plate; 9. connecting pipe; 10. sealing gasket. DETAILED DESCRIPTION

[0032] The following combination Figure 1-Figure 4 This application is described in further detail.

[0033] The embodiments of the present application disclose a bridge pile foundation rotary drilling and grouting device and a construction method.

[0034] Example 1

[0035] Reference Figure 1 and Figure 2 A bridge pile foundation rotary drilling and pouring device comprises a mounting frame 1, a vibrating assembly 3, a lifting guide tube 4, a segment guide tube 5 and a control assembly 6. Specifically, the mounting frame 1 is made of high-strength steel welding and has good bearing capacity and anti-deformation ability; the mounting frame 1 is arranged above the pile hole and fixed to the ground through ground nails to prevent it from moving during the pile foundation pouring process; a hopper 2 for holding concrete is fixedly installed on the mounting frame 1, and the hopper 2 has an inverted cone appearance. The hopper 2 is made of high-strength stainless steel, and the interior is smooth and flat to prevent corrosion and wear.

[0036] The vibrating assembly 3 includes a rotating sleeve 31, a driving member 32 and a vibrating rod 33; the rotating sleeve 31 is rotatably mounted on the mounting frame 1 through a bearing, and the rotation axis of the rotating sleeve 31 coincides with the central axis of the hopper 2; the driving member 32 is fixedly mounted on the mounting frame 1 and is used to drive the rotating sleeve 31 to rotate. The driving member 32 is a high-torque motor and is connected to the rotating sleeve 31 through a belt drive to drive the rotating sleeve 31 to rotate.

[0037] There are four vibrating rods 33, and the length of the vibrating rods 33 can be reasonably selected according to the size of the hopper 2 to ensure a good vibrating effect; the four vibrating rods 33 are fixed on the rotating sleeve 31 at equal intervals along the axis of the rotating sleeve 31, and the rotating sleeve 31 rotates the vibrating rods 33 to stir and vibrate the concrete in the hopper 2. In other embodiments, the number of vibrating rods 33 can be flexibly adjusted as needed; the vibrating rods 33 and the rotating sleeve 31 can also be elastically connected to slow down the transmission of vibration to the rotating sleeve 31, to prevent the rotating sleeve 31 from being deformed or stuck due to high-frequency vibration; the vibrating rods 33 can also be directly fixed on the inner wall of the hopper 2.

[0038] Reference Figure 3 and Figure 4 In this embodiment, the lifting guide tube 4 can be made of seamless steel pipe, and the surface is chrome-plated to enhance wear resistance and corrosion resistance; the lifting guide tube 4 is slidably penetrated at the bottom of the hopper 2, the central axis of the lifting guide tube 4 coincides with the rotation axis of the rotating sleeve 31, one end of the lifting guide tube 4 is inserted in the rotating sleeve 31, and the other end extends out from the bottom of the hopper 2, and the side wall of the lifting guide tube 4 is provided with a blanking groove 41, the extension direction of the blanking groove 41 is parallel to the central axis of the lifting guide tube 4, and the concrete in the hopper 2 can flow into the lifting guide tube 4 through the blanking groove 41; the inner wall of the rotating sleeve 31 is provided with a spiral groove 311, and a guide block 42 is fixedly connected to the outer wall of one end of the lifting guide tube 4 located in the rotating sleeve 31, and the end of the guide block 42 away from the rotating sleeve 31 slides and abuts in the spiral groove 311, so that the lifting guide tube 4 and the rotating sleeve 31 form a spiral rotation connection, and the lifting guide tube 4 can be smoothly raised or lowered when the rotating sleeve 31 rotates.

[0039] Preferably, a roller 7 is provided at one end of the guide block 42 located in the spiral groove 311, and the roller 7 rolls and abuts against the groove wall of the spiral groove 311, further reducing the friction between the spiral groove 311 and improving the smoothness of movement; a sealing gasket 10 is provided between the outer wall of the lifting duct 4 and the hopper 2, and the sealing gasket 10 can effectively prevent the concrete in the hopper 2 from leaking to the external environment during the pouring process, thereby enhancing the sealing performance between the lifting duct 4 and the hopper 2.

[0040] Reference Figure 2 and Figure 3 In this embodiment, a U-shaped baffle 21 is provided on the outer wall of the hopper 2. The specific structure of the U-shaped baffle 21 is a metal plate with a U-shaped slide groove. The shape of the U-shaped slide groove matches the shape of the outer wall of the lifting guide tube 4 to ensure that it can fit closely with the outer wall of the lifting guide tube 4. The U-shaped baffle 21 slides and abuts against the outer wall of the lifting guide tube 4. The U-shaped baffle 21 can seal and cover the part of the blanking chute 41 located outside the hopper 2 to prevent concrete leakage; the extension direction of the U-shaped slide groove is parallel to the lifting direction of the lifting guide tube 4 to ensure that the lifting guide tube 4 can slide smoothly; the inner wall of the U-shaped baffle 21 is provided with a slide groove 211, and the extension direction of the slide groove 211 is parallel to the lifting direction of the lifting guide tube 4. A slider 43 is provided on the outer wall of the lifting guide tube 4. The slider 43 is a convex structure on the outer wall of the lifting guide tube 4. The end of the slider 43 away from the lifting guide tube 4 slides and abuts in the slide groove 211 to prevent relative rotation or separation between the lifting guide tube 4 and the mounting frame 1.

[0041] Preferably, the bottom end of the rotating sleeve 31 is higher than the height of the concrete in the hopper 2 to prevent the concrete from invading the chute 211 and affecting the smoothness of the guide block 42 sliding in the spiral groove 311. In other embodiments, the chute 211 can also be provided on the lifting guide tube 4, and the slider 43 can also be provided on the U-shaped baffle 21.

[0042] Reference Figure 1 and Figure 3 In this embodiment, the segmented conduit 5 is generally made of thick-walled steel pipe, and the inner and outer surfaces are polished to reduce the friction resistance with concrete; there are multiple segmented conduits 5, and the specific number of use needs to be flexibly adjusted according to the actual pile construction requirements; the multiple segmented conduits 5 are connected end to end by threaded connections, and the feed end of the first segmented conduit 5 is connected to the discharge end of the lifting conduit 4 by threaded connections. When the lifting conduit 4 rises or falls, it can synchronously drive the segmented conduit 5 to rise or fall, and the discharge end of the terminal segmented conduit 5 extends to the bottom of the pile hole; this design can quickly disassemble or connect the segmented conduits 5, and flexibly adjust the length of the segmented conduits 5 to meet the construction requirements of pile holes of different depths.

[0043] The control component 6 includes a flow meter 61 and a control host 62. The flow meter 61 is arranged at the mud discharge outlet of the pile to measure the amount of mud discharged from the pile hole. The control host 62 is a micro-control computer with an operating system and control software installed inside. The control host 62 is electrically connected to the driving member 32 and the flow meter 61. The driving member 32 can be controlled by the control host 62 to drive the lifting guide tube 4 to rise and fall. The control host 62 can calculate the pouring height of concrete in the pile hole in real time according to the measurement value of the flow meter 61, and synchronously control the lifting of the lifting guide tube 4, so as to achieve that the depth of the segment guide tube 5 buried in the concrete is always kept constant when pouring concrete in the pile hole.

[0044] Reference Figure 1 and Figure 2 In this embodiment, a limiting protrusion 51 is provided on the outer wall of the segment conduit 5, and the limiting protrusion 51 is a protruding structure on the segment conduit 5; the bridge pile foundation rotary drilling and grouting device also includes a limiting assembly 8, and the limiting assembly 8 includes a telescopic driving member 81 and two limiting plates 82, the two limiting plates 82 are arranged opposite to each other and are both slidably arranged on the mounting frame 1, and the sliding direction of the limiting plate 82 is perpendicular to the central axis of the segment conduit 5; the telescopic driving member 81 can select one of a pneumatic push rod, an electric push rod, and a hydraulic push rod, the number of the telescopic driving members 81 is four, and each limiting plate 82 is configured with two telescopic driving members 81; one end of the telescopic driving member 81 is fixed on the mounting frame 1, and the other end is connected to the limiting plate 82, and the telescopic driving member 81 can drive the two limiting plates 82 to move away from or close to each other.

[0045] When the two limiting plates 82 are close to and abut against each other, a circular hole matching the shape of the segmented catheter 5 is formed between the two limiting plates 82. At this time, the two limiting plates 82 can respectively abut against the outer walls on both sides of the segmented catheter 5 to position the segmented catheter 5 and prevent the segmented catheter 5 from shaking; at the same time, the bottom surface of the limiting protrusion 51 can abut against the top surface of the limiting plate 82, thereby preventing the segmented catheter 5 from falling; when the two limiting plates 82 are away from each other, the limiting plate 82, the limiting protrusion 51 and the segmented catheter 5 do not interfere with each other.

[0046] Preferably, when the lifting guide tube 4 rises to the highest position, the height of the bottom end of the lifting guide tube 4 from the top end of the pile hole is greater than the length of the segment guide tube 5, so that the segment guide tube 5 can be removed from the pile hole smoothly. In other embodiments, the number of limit plates 82 can be adjusted as needed; the telescopic drive member 81 can also be one of a double-headed pneumatic push rod, a double-headed electric push rod, and a double-headed hydraulic push rod. By fixing the main body of the telescopic drive member 81 on the mounting frame 1, and connecting the two output ends of the telescopic drive member 81 to the two limit plates 82 respectively, the two limit plates 82 can be moved closer or farther away from each other.

[0047] Reference Figure 1 In this embodiment, a connecting pipe 9 is provided between the lifting duct 4 and the first segment duct 5; the connecting pipe 9 is a stainless steel metal pipe with a funnel-shaped appearance; the end of the connecting pipe 9 with a larger opening is connected to the discharge end of the lifting duct 4 through a threaded connection, and the end of the connecting pipe 9 with a smaller opening is connected to the feed end of the first segment duct 5 through a threaded connection; in this way, connecting pipes 9 of different sizes can be replaced according to actual construction needs, so that the lifting duct 4 can be connected to segment ducts 5 of different diameters. This flexibility enables the entire grouting device to be used in pile construction of various specifications, improving the versatility and applicability of the equipment. In other embodiments, the connecting pipe 9 can also be made of a high-strength rubber hose or a corrugated pipe with good flexibility and pressure resistance, directly providing a certain buffering and shock-absorbing effect for the lifting duct 4 and the segment duct 5.

[0048] The implementation principle of Example 1 is as follows: the bridge pile foundation rotary drilling and grouting device provided by the present application integrates multiple functional modules to simplify the removal steps of the segmented guide tube 5, reduce the unevenness during concrete diffusion, and improve the efficiency and quality of pile construction; specifically, the design of the mounting frame 1 ensures the stability and safety of the entire device, especially that it will not deviate or overturn during the pile foundation construction process; the vibrating assembly 3 can not only fully stir the concrete in the hopper 2 through the effective cooperation of the rotating sleeve 31 and the vibrating rod 33, but also effectively remove the air in the concrete, avoid the occurrence of slurry and stone sinking to the bottom, thereby significantly improving the quality of the pile concrete; the design of the lifting guide tube 4 adopts a combination of a spiral groove 311 and a guide block 42, so that the lifting guide tube 4 can move up and down smoothly under the drive of the rotating sleeve 31, which not only simplifies the lifting steps of the segmented guide tube 5, but also greatly reduces the manpower input and improves the construction efficiency. rate; the multiple designs and threaded connection methods of the segmented conduits 5 make the total length of the segmented conduits 5 flexibly adjustable, and suitable for pile hole construction of different depths; and the design of the lifting conduit 4 and the segmented conduits 5 makes it unnecessary to move the hopper 2 when disassembling and assembling the segmented conduits 5, thus avoiding position errors when resetting the hopper 2 and simplifying the operation steps; the control component 6 can monitor the pouring height of concrete in the pile hole in real time through the intelligent linkage of the flow meter 61 and the control host 62, and automatically adjust the lifting speed of the lifting conduit 4, so that the segmented conduit 5 rises with the increase of the concrete pouring height, ensuring that the depth of the segmented conduit 5 buried in the concrete remains unchanged, solving the problem that the concrete in the pile hole in the traditional method diffuses unevenly during the upward extrusion process, and it is easy for floating slurry or stones to sink to the bottom and affect the quality of the pile body; the limit component 8 ensures the accuracy and safety of the segmented conduit 5 during construction or disassembly and assembly through the cooperation of the limit plate 82 and the telescopic drive member 81.

[0049] In summary, the bridge pile foundation rotary drilling and grouting device of the present application integrates a number of innovative technologies, greatly improves the efficiency and quality of bridge pile foundation construction, and has high practical value.

[0050] Example 2

[0051] Embodiment 2 of the present application also discloses a bridge pile foundation construction method using the bridge pile foundation rotary drilling and grouting device as described above, which comprises the following steps: Step 1: fix the mounting frame 1 above the pile hole, connect multiple segmented conduits 5 end to end, connect the first segmented conduit 5 with the lifting conduit 4, extend the end segmented conduit 5 to the predetermined position at the bottom of the pile hole, and calibrate the relative position of the segmented conduit 5 and the pile hole.

[0052] Step 2: Use the ball pressing method to pour the first batch of concrete into the hopper 2, and start the vibrating rod 33 to vibrate the concrete in the hopper 2. The amount of the first batch of concrete should be such that the end segment guide tube 5 is buried in the concrete to a depth of at least 1 meter.

[0053] Step three, continue to pour concrete into the hopper 2, and start the control component 6 and the drive member 32. The control component 6 controls the synchronous lifting of the lifting guide tube 4 according to the real-time concrete pouring depth in the pile hole so that the depth of the segment guide tube 5 buried in the concrete is always kept constant. When the lifting guide tube 4 is lifted to the highest position, stop pouring concrete into the hopper 2.

[0054] Step 4: remove the first segment conduit 5 connected to the lifting conduit 4, and make the lifting conduit 4 descend to the next segment conduit 5 and communicate with it.

[0055] Step 5: Repeat steps 3 and 4 until the pile casting is completed.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bridge pile foundation rotary drilling and pouring device, characterized in that: include: A mounting frame (1), the mounting frame (1) being fixedly arranged above the pile hole, and a hopper (2) for holding concrete being mounted on the mounting frame (1); A vibrating assembly (3), the vibrating assembly (3) comprising a rotating sleeve (31), a driving member (32) and a vibrating rod (33); the rotating sleeve (31) is rotatably mounted on a mounting frame (1); the driving member (32) is used to drive the rotating sleeve (31) to rotate; the vibrating rod (33) is mounted on the rotating sleeve (31) and is used to vibrate concrete in the hopper (2); A lifting duct (4), wherein the lifting duct (4) is slidably arranged on the hopper (2), and a material drop trough (41) is provided on the lifting duct (4), and concrete in the hopper (2) can flow into the lifting duct (4) through the material drop trough (41); when the rotating sleeve (31) rotates, it can drive the lifting duct (4) to rise or fall in the hopper (2); a U-shaped baffle (21) is provided on the hopper (2), and the U-shaped baffle (21) can seal and cover the portion of the material drop trough (41) located outside the hopper (2); A segmented conduit (5), wherein a plurality of segmented conduits (5) are provided; the plurality of segmented conduits (5) are connected end to end by a detachable connection, and the feed end of the first segmented conduit (5) is connected to the discharge end of the lifting conduit (4) by a detachable connection, and the discharge end of the last segmented conduit (5) extends to the bottom of the pile hole; when the lifting conduit (4) rises or falls, it can synchronously drive the segmented conduit (5) to rise or fall; A control component (6) is electrically connected to the driving member (32) to control the lifting and lowering of the lifting guide tube (4). The control component (6) can synchronously control the lifting of the lifting guide tube (4) according to the real-time pouring height of concrete in the pile hole so that the depth of the segment guide tube (5) buried in the concrete is always kept constant.

2. A bridge pile foundation rotary drilling and grouting device according to claim 1, characterized in that: The control component (6) comprises a flow meter (61) and a control host (62); the flow meter (61) is used to detect the flow rate of mud discharged from the pile hole when pouring the pile body; the control host (62) is electrically connected to the driving member (32) and the flow meter (61); the lifting and lowering of the lifting conduit (4) can be controlled by the control host (62); the control host (62) can calculate the pouring height of concrete in the pile hole in real time according to the value measured by the flow meter (61) and synchronously control the lifting of the lifting conduit (4), so that the depth of the segment conduit (5) buried in the concrete is always kept constant.

3. A bridge pile foundation rotary drilling and grouting device according to claim 2, characterized in that: A spiral groove (311) is provided on the inner wall of the rotating sleeve (31), a guide block (42) is provided on the outer wall of the lifting guide tube (4), the lifting guide tube (4) is inserted into the rotating sleeve (31), and one end of the guide block (42) is slidably disposed in the spiral groove (311) so that the lifting guide tube (4) and the rotating sleeve (31) are connected in a spiral rotation manner.

4. A bridge pile foundation rotary drilling and grouting device according to claim 3, characterized in that: The U-shaped baffle (21) is provided with a slide groove (211), the extension direction of the slide groove (211) is parallel to the lifting direction of the lifting tube (4), and a sliding block (43) is provided on the outer wall of the lifting tube (4), and one end of the sliding block (43) is slidably abutted in the slide groove (211).

5. The bridge pile foundation rotary drilling and grouting device according to claim 3, characterized in that: The guide block (42) is also provided with a roller (7), and the roller (7) is in rolling contact with the groove wall of the spiral groove (311).

6. A bridge pile foundation rotary drilling and grouting device according to claim 1, characterized in that: The segmented conduit (5) is provided with a limiting protrusion (51) on the outer wall thereof; the segmented conduit (5) further comprises a limiting assembly (8), the limiting assembly (8) comprising a telescopic driving member (81) and at least two limiting plates (82); the two limiting plates (82) are arranged opposite to each other, and the two limiting plates (82) are both slidably arranged on the mounting frame (1); the telescopic driving member (81) is used to make the two limiting plates (82) move away from or closer to each other; when the two limiting plates (82) move closer to each other, the two limiting plates (82) can respectively abut against the outer walls of both sides of the segmented conduit (5) to position it, and the bottom surface of the limiting protrusion (51) can abut against the top surface of the limiting plate (82) to prevent the segmented conduit (5) from falling; when the two limiting plates (82) move away from each other, the two limiting plates (82) and the limiting protrusion (51) do not interfere with each other.

7. The bridge pile foundation rotary drilling and grouting device according to claim 1, characterized in that: A connecting pipe (9) is provided between the lifting duct (4) and the first segment duct (5); one end of the connecting pipe (9) is connected to the discharge end of the lifting duct (4), and the other end is connected to the feed end of the first segment duct (5).

8. The bridge pile foundation rotary drilling and grouting device according to claim 1, characterized in that: When the lifting guide tube (4) rises to the highest position, the height between the bottom end of the lifting guide tube (4) and the top end of the pile hole is greater than the length of the segment guide tube (5).

9. The bridge pile foundation rotary drilling and grouting device according to claim 1, characterized in that: A sealing gasket (10) is provided between the outer wall of the lifting duct (4) and the hopper (2).

10. A method for constructing a bridge pile foundation using a bridge pile foundation rotary drilling and grouting device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: a mounting frame (1) is fixedly installed above the pile hole, a plurality of segmented conduits (5) are connected end to end, and the first segmented conduit (5) is connected to the lifting conduit (4), and the end segmented conduit (5) is extended to a predetermined position at the bottom of the pile hole, and the relative position of the segmented conduit (5) and the pile hole is calibrated; Step 2: pouring the first batch of concrete into the hopper (2) using the ball pressing method, and starting the vibrating rod (33) to vibrate the concrete in the hopper (2). The amount of the first batch of concrete should be such that the end segment guide tube (5) is buried in the concrete to a depth of at least 1 meter; Step 3: pouring concrete into the hopper (2) continuously, and starting the control component (6) and the driving member (32); the control component (6) controls the synchronous lifting of the lifting guide tube (4) according to the real-time concrete pouring depth in the pile hole so that the depth of the segment guide tube (5) buried in the concrete is always kept constant; when the lifting guide tube (4) is lifted to the highest position, the pouring of concrete into the hopper (2) is stopped; Step 4: remove the first segment catheter (5) connected to the lifting catheter (4), so that the lifting catheter (4) descends to the next segment catheter (5) and communicates with it; Step 5: Repeat steps 3 and 4 until the pile casting is completed.

Images