High-speed railway roadbed CFG pile drilling machine pile forming structure and construction method thereof

Abstract

The invention discloses a high-speed railway subgrade CFG pile drilling machine pile forming structure and a construction method thereof, and relates to the technical field of pile foundation construction.The high-speed railway subgrade CFG pile drilling machine pile forming structure comprises a drilling machine arranged on a foundation, the drilling machine comprises a drilling machine frame, a drilling and digging structure is arranged on the drilling machine frame, and a pile foundation hole is formed in the position, corresponding to the drilling and digging structure, of the foundation below the drilling and digging structure; a driving assembly is arranged on the drilling machine frame and connected with a drilling structure, a positioning detection assembly is arranged on the drilling structure, a vertical detection assembly corresponding to a pile foundation hole is arranged on the drilling structure, and the drilling structure corresponds to the position where the pile foundation hole is formed through the positioning detection assembly. The drilling rod of the drilling structure is kept vertical through the vertical detection assembly, the current detection assembly is connected with the driving piece of the drilling structure, the current generated when the driving piece drives the drilling rod to rotate to excavate the pile foundation hole is monitored, and the deviation of the pile position, the pile hole depth and the pile hole perpendicularity of the pile hole formed by the drilling machine is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of pile foundation construction, and in particular to a pile-forming structure of a CFG pile drilling rig for a high-speed railway subgrade and a construction method thereof. Background Art

[0002] CFG piles are made of a certain proportion of cement, fly ash, crushed stone and stone chips mixed by pouring on-site. They have relatively good bonding strength, obvious load effect and good construction efficiency. Therefore, they have become one of the commonly used foundation treatment methods for high-speed railway subgrades in recent years. The long spiral tube internal pumping pile technology is a common construction technology for CFG piles, which has the advantages of high work efficiency and simple operation.

[0003] In traditional construction technology, pile holes excavated by long spiral drilling rigs are mostly determined by manually marking the pile positions and determining the depth of the pile holes excavated by the drilling rigs. As a result, there are large deviations in the pile positions, pile hole depths and pile hole verticality of the pile holes opened by the drilling rigs.

[0004] With respect to the above-mentioned related technologies, the inventors believe that pile holes excavated by long spiral drilling rigs are mostly manually marked for pile positions and the depth of the pile holes excavated by the drilling rigs is determined, resulting in large deviations in the pile positions, pile hole depths and pile hole verticality of the pile holes opened by the drilling rigs. Summary of the invention

[0005] The purpose of this application is to provide a high-speed railway roadbed CFG pile drilling rig pile structure and its construction method, so as to improve the problem that pile holes excavated by long spiral drilling rigs are mostly manually marked for pile positions and the depth of pile holes excavated by the drilling rigs is determined, resulting in large deviations in pile positions, pile hole depths and pile hole verticality of the pile holes opened by the drilling rigs.

[0006] The high-speed railway roadbed CFG pile drilling rig pile structure provided in this application adopts the following technical solutions: The pile forming mechanism of the CFG pile drilling rig for the high-speed railway roadbed comprises a drilling rig arranged on a foundation, the drilling rig comprises a drilling rig frame, a drilling structure is arranged on the drilling rig frame, a pile foundation hole is opened at a position corresponding to the drilling structure on the foundation below the drilling structure, a driving component is arranged on the drilling rig frame, the driving component is connected to the drilling structure, a positioning detection component is arranged on the drilling structure, and a vertical detection component corresponding to the pile foundation hole is arranged on the drilling structure.

[0007] By adopting the above technical solution, a positioning detection component is arranged on the drilling structure, and the position of the pile foundation hole is positioned by the positioning detection component. The drilling rig is moved to a position corresponding to the opening of the pile foundation hole, so that the drilling structure corresponds to the position of the pile foundation hole, and the deviation of the excavation position of the pile foundation hole is reduced. The vertical detection component arranged on the drilling structure monitors the verticality of the drilling structure when excavating the pile foundation hole, ensuring that the drilling structure can vertically excavate the pile foundation hole, reducing the deviation of the verticality of the pile foundation hole, and allowing the CFG pile cast in the pile foundation hole to maintain a vertical state.

[0008] Optionally, the drilling structure includes a drilling support hinged to the drilling rig frame, the drilling support is connected to the driving assembly, a guide rail is provided on the drilling support at one end close to the pile foundation hole, a hollow drill rod corresponding to the pile foundation hole is provided on the drilling support, a mounting frame is provided at one end of the drill rod away from the pile foundation hole, the drill rod is rotatably connected to the mounting frame, the mounting frame moves along the guide rail corresponding to the guide rail, a driving member 1 is provided on the mounting frame, the driving member 1 is connected to the drill rod to drive the drill rod to rotate, a current detection assembly corresponding to the driving member 1 is provided on the mounting frame, the end of the mounting frame away from the drill rod is connected to the driving assembly, and the drill rod moves toward the pile foundation hole along the guide rail.

[0009] By adopting the above technical solution, a driving member on the mounting frame drives the drill rod to rotate to excavate the pile foundation hole. The guide rail provided on the drilling bracket is connected to the mounting frame through a slider, so that the mounting frame can move toward the pile foundation hole through the guide rail, so that the drill rod can excavate the depth of the pile foundation hole. By means of a current detection component corresponding to the driving member provided on the mounting frame, the current signal generated when the driving member drives the drill rod to rotate to excavate the pile foundation hole is monitored, the excavation depth of the pile foundation hole is calculated, and the deviation of the depth of the pile foundation hole is reduced.

[0010] Optionally, the driving assembly includes a driving member 2 arranged on the drilling rig frame, the driving rod of the driving member 2 is rotatably connected to the drilling bracket, the end of the driving member 2 away from the drilling bracket is rotatably connected to the drilling rig frame, a winch is arranged on the drilling rig frame, and the cable connected to the winch is connected to the mounting frame.

[0011] By adopting the above technical solution, the second driving member arranged on the drilling rig frame is used to drive the drilling bracket to rotate around the hinge on the drilling rig frame, so that the drilling bracket is erected, and is connected to the mounting frame through the cable of the winch arranged on the drilling rig frame. The winch moves the mounting frame on the guide rail on the drilling bracket by retracting and releasing the cable, so that the drill rod rotatably connected to the mounting frame excavates the depth of the pile foundation hole.

[0012] Optionally, one end of the mounting frame away from the drill rod is connected to the positioning detection assembly, and the positioning detection assembly includes a positioning unit 1 arranged on the mounting frame, a locator is arranged on the foundation where the pile foundation hole is opened, and the locator corresponds to the positioning unit 1, and a controller electrically connected to the positioning unit 1 is arranged on the drilling rig frame, and the positioning unit 1 receives the signal of the locator and transmits it back to the controller, and the drilling rig frame moves to the position where the pile foundation hole is opened through the controller so that the drill rod and the position of the pile foundation hole correspond to each other.

[0013] By adopting the above technical solution, the positioning unit 1 is installed on the mounting frame, the positioner corresponding to the positioning unit 1 is inserted into the foundation at the position where the pile foundation hole is opened, the positioner is fixed, and the position of the pile foundation hole excavated on the foundation is determined. The signal of the positioning unit 1 detecting the positioner is received by the controller electrically connected to the positioning unit 1 and arranged on the drilling rig frame, so that the drill rod fixed on the drilling support mountain corresponds to the position where the pile foundation hole is opened, thereby reducing the deviation of the position of the drill rod drilling the pile foundation hole.

[0014] Optionally, a positioning unit 2 is provided on one end of the drilling rig frame away from the drilling support, the positioning unit 2 corresponds to the locator, the positioning unit 2 is electrically connected to the controller, the side wall of the drill rod is provided with a spiral blade, the spiral blade rotates with the drill rod to excavate the pile foundation hole, and a support frame is provided on the end of the drilling support away from the mounting frame, the support frame is provided with a connecting groove corresponding to the drill rod, the support frame is connected to the vertical detection component, and the vertical detection component corresponds to the drill rod.

[0015] By adopting the above technical solution, the positioning unit 2 is set on the end of the drilling rig frame away from the drilling bracket, and the signal of the locator is received by the positioning unit 2 and transmitted back to the controller, so that the drilling rig frame is moved to a suitable position, so that the drill rod on the drilling rig is aligned with the position of the pile foundation hole. A support frame is set at the end of the drilling bracket away from the mounting frame, and the end of the drill rod away from the pile foundation hole is supported by the connecting groove provided on the support frame, so as to prevent the drill rod from deflecting too much during drilling and affecting the excavation of the pile foundation hole.

[0016] Optionally, the vertical detection component includes an inclination sensor, which is connected to the support frame, and the inclination sensor detects the verticality of the drill rod. An adsorption component is provided at one end of the support frame away from the pile foundation hole, and the inclination sensor is connected to the adsorption component and fixed on the support frame.

[0017] By adopting the above technical solution, the inclination sensor is installed on the support frame, and the inclination sensor is adsorbed and fixed by the adsorption piece arranged on the support frame, so as to facilitate the installation and disassembly of the inclination sensor and reduce the possibility of the inclination sensor and the support frame bolt connection vibrating and falling off during the drilling process. The inclination sensor is used to detect the verticality of the drill rod, and the drill rod is monitored in real time when drilling the pile foundation hole, so as to ensure that the drill rod always remains vertical during the drilling process and reduce the possibility of the pile foundation hole tilting.

[0018] Optionally, the current detection component includes a current sensor, which is arranged on the driving member 1 on the mounting frame and electrically connected to the driving member 1. The current sensor detects the current change generated by the driving member 1 driving the drill rod to rotate, and determines the drilling position of the drill rod.

[0019] By adopting the above technical solution, the current sensor is installed on the driving component 1 to detect and collect the current signal generated when the driving component 1 drives the drill rod to rotate to excavate the pile foundation hole, the drilling position of the drill rod is determined, the excavation depth of the pile foundation hole is calculated and judged, and the deviation of the excavation depth of the pile foundation hole is reduced.

[0020] Optionally, a fixing groove is provided on the mounting frame, a connecting pipe communicating with the inner wall of the drill rod is provided in the fixing groove, a delivery pipe is provided at one end of the connecting pipe away from the drill rod, the delivery pipe delivers concrete into the drill rod, a baffle is rotatably provided at one end of the drill rod close to the pile foundation hole, the baffle blocks the hollow inner wall of the drill rod, and an opening piece is provided at one end of the baffle away from the drill rod.

[0021] By adopting the above technical scheme, the baffle is rotatably set at one end of the drill rod close to the pile foundation hole to block the inner wall of the drill rod to prevent soil from entering the drill rod during the drilling process. A hole-opening member is installed under the baffle, and the drill rod is driven to rotate by a driving member to facilitate the excavation of the pile foundation hole. The connecting pipe is set in a fixed groove opened on the mounting frame and communicated with the hollow drill rod. Concrete is pumped into the drill rod through a delivery pipe connected to the connecting pipe. The concrete flushes the baffle and enters the drilled pile foundation hole to cast the CFG pile.

[0022] The construction method of the CFG pile drilling rig pile forming mechanism for high-speed railway roadbed comprises the following steps: The foundation is leveled, and the locator is inserted at the position where the pile foundation hole is opened on the foundation. The positioning detection component on the drilling rig receives the signal of the locator and drives the drilling rig to the position corresponding to the pile foundation hole opened on the foundation; The driving assembly on the drilling rig frame drives the drilling bracket to stand up, and the drill rod on the drilling bracket corresponds to the position of the pile foundation hole; Start the driving member 1 on the drilling bracket, the driving member 1 drives the drill rod to rotate, and the pile foundation hole is excavated. The vertical detection component arranged on the drilling bracket monitors the verticality of the drill rod, and the pillow allows the drill rod to vertically excavate the pile foundation hole; After the excavation of the pile foundation hole is completed, the drill rod stops rotating, the connecting pipes on the delivery pipe mounting frame are connected, and the concrete is pumped into the hollow drill rod through the delivery pipe and the connecting pipe. The concrete breaks through the baffle and falls into the bottom of the pile foundation hole. Then the drill rod is slowly lifted to fill the pile foundation hole with concrete and pour the CFG pile.

[0023] Optionally, the CFG pile is constructed by a pile driver, including the following steps: A positioning unit 2 arranged at one end of the drilling rig away from the drilling support receives the signal of the positioner and adjusts the position of the drilling rig to move to the position where the pile foundation hole is opened on the foundation; After the drilling rig moves to the position where the pile foundation hole is opened in the foundation, the driving member 2 on the drilling rig frame drives the drilling bracket to stand up, and the positioning unit 1 installed on the mounting frame arranged on the drilling bracket receives the signal of the positioner and adjusts the position of the drilling rig so that the drill hole on the mounting frame corresponds to the position where the pile foundation hole is opened; The inclination sensor installed on the support frame on the drilling bracket monitors the verticality of the drill rod to ensure that the drill rod can open the pile foundation hole vertically. The current sensor is installed on the driving member on the mounting frame to collect the current signal generated by the driving member driving the drill rod to excavate the pile foundation hole, so as to judge the excavation depth of the pile foundation hole.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Install the positioning unit 1 on the mounting frame, insert the positioner corresponding to the positioning unit 1 on the foundation where the pile foundation hole is opened, fix the positioner, determine the position of the pile foundation hole excavated on the foundation, receive the signal of the positioning unit 1 detecting the positioner through the controller electrically connected to the positioning unit 1 and arranged on the drilling rig frame, make the drilling support mountain fix the drill rod corresponding to the position where the pile foundation hole is opened, reduce the deviation of the position of the drill rod drilling the pile foundation hole, set the positioning unit 2 on the end of the drilling rig frame away from the drilling support, receive the signal of the positioner through the positioning unit 2 and transmit it back to the controller, move the drilling rig frame to a suitable position, and make the drill rod on the drilling rig align the position of the pile foundation hole; 2. A support frame is arranged at one end of the drilling bracket away from the mounting frame, and the end of the drill rod away from the pile foundation hole is supported by a connecting groove provided on the support frame to prevent the drill rod from deflecting too much during drilling, thereby affecting the excavation of the pile foundation hole. The inclination sensor is installed on the support frame, and the inclination sensor is adsorbed and fixed by an adsorption piece provided on the support frame, so as to facilitate the installation and disassembly of the inclination sensor, and reduce the possibility of the inclination sensor and the support frame bolt connection vibrating and falling off during the drilling process. The inclination sensor is used to detect the verticality of the drill rod, and the drill rod is monitored in real time when the drill rod is drilling the pile foundation hole, so as to ensure that the drill rod always remains vertical during the drilling process, and reduce the possibility of the pile foundation hole being tilted; 3. Rotate and set the baffle at one end of the drill rod near the pile foundation hole to block the inner wall of the drill rod to prevent soil from entering the drill rod during the drilling process. Install a hole-opening part under the baffle, and drive the drill rod to rotate by a driving part to facilitate the excavation of the pile foundation hole. Install a current sensor on the driving part to detect and collect the current signal generated when the driving part drives the drill rod to rotate during the excavation of the pile foundation hole, determine the drilling position of the drill rod, calculate and judge the excavation depth of the pile foundation hole, reduce the deviation of the excavation depth of the pile foundation hole, and reduce the deviation of the height of the cast CFG piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the overall schematic diagram of the pile-forming mechanism of the CFG pile drilling rig for high-speed railway roadbed; Figure 2 It is a partial cross-sectional view of the CFG pile foundation pile forming mechanism; Figure 3 yes Figure 2 A partial enlarged view of middle A; Figure 4 yes Figure 2 A partial enlarged view of B.

[0026] In the figure, 1. drilling rig; 11. drilling rig frame; 12. driving assembly; 121. driving member 2; 13. winch; 2. drilling structure; 21. drilling bracket; 22. guide rail; 23. drill rod; 231. spiral blade; 232. baffle; 233. hole opening member; 24. mounting frame; 241. driving member 1; 242. fixing groove; 243. connecting pipe; 25. supporting frame; 251. connecting groove; 252. adsorption member; 3. pile foundation hole; 4. positioning detection assembly; 41. positioning unit 1; 42. positioner; 43. controller; 44. positioning unit 2; 5. vertical detection assembly; 51. inclination sensor; 6. current detection assembly; 61. current sensor; 7. conveying pipe. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0028] Embodiment 1 High-speed railway roadbed CFG pile drilling rig pile mechanism, refer to Figure 1 and Figure 2 , including a drilling rig 1 parked on a foundation, a drilling support 21 is hinged with a drilling rig frame 11 through a large rotating shaft, and is rotatably connected with a second driving member 121 on the drilling rig frame 11, the second driving member 121 is a hydraulic cylinder, a cylinder body of the hydraulic cylinder is rotatably connected with the drilling rig frame 11 through a rotating shaft, a push rod of the hydraulic cylinder is rotatably connected with the drilling support 21 through a rotating shaft, the drilling support 21 is pushed to rotate on the drilling rig frame 11 through the second driving member 121, so that the drilling support 21 stands up, and a guide rail 22 is welded to the drilling support 21 The side of the drilling rig frame 11 away from the drilling rig frame 11 is made to be consistent in length direction with the guide rail 22, and the mounting frame 24 is connected to the guide rail 22 through a slider, so that the mounting frame 24 moves on the guide rail 22 along the drilling bracket 21 to the position where the pile foundation hole 3 is opened, and the winch 13 is fixed to the drilling rig frame 11 with a fastening bolt, and the cable of the winch 13 is connected to the mounting frame 24 through the fixed pulleys installed on the drilling rig frame 11 and the drilling bracket 21, and the mounting frame 24 is driven to move on the drilling bracket 21 by the winch 13 to retract and release the cable.

[0029] Reference Figure 2 and Figure 3 The metal drill rod 23 is rotatably connected to the mounting frame 24 through bearings and gears, and a driving member 241 is fixed to the mounting frame 24 with a fastening bolt. The driving member 241 is a driving motor. The driving rod of the driving motor drives the drill rod 23 to rotate through the driving gear. A metal spiral blade 231 is welded on the outer wall of the hollow drill rod 23 to drill the pile foundation hole 3; the locator 42 is inserted into the foundation position of the predetermined excavation pile foundation hole 3, and a positioning unit 41 that receives the signal of the locator 42 is fixedly installed on the mounting frame 24. The positioning unit 41 is a positioning antenna that receives the signal of the locator 42 and the base station. The controller 43 electrically connected to the positioning unit 41 is fixedly installed on the drilling rig frame 11, and the positioning unit 44 is fixedly installed on the drilling rig frame 11. The locomotive frame 11 is at one end away from the drilling bracket 21, and the positioning unit 24 is a directional antenna for receiving the locator 42 and the base station signal. The positioning unit 24 is electrically connected to the controller 43, and the drilling rig frame 11 is moved to the position of excavating the pile foundation hole 3, and the mounting frame 24 on the drilling bracket 21 is moved to the position corresponding to the pile foundation hole 3, so that the drill rod 23 coincides with the excavation pile position of the pile foundation hole 3, thereby reducing the possibility of displacement of the pile foundation hole 3; the current sensor 61 is fixedly installed on the driving member 241 and electrically connected to the driving member 241, and the electrical signal generated by the driving member 241 driving the drill rod 23 to rotate is detected and collected, the drilling progress of the drill rod 23 is judged, and the drilling depth of the pile foundation hole 3 is detected and calculated, thereby reducing the deviation of the depth of the pile foundation hole 3.

[0030] Reference Figure 2 and Figure 4 , weld the metal support frame 25 to the end of the drilling bracket 21 away from the mounting frame 24 and connect it to the guide rail 22, and open a connecting groove 251 corresponding to the drill rod 23 on the support frame 25 to support the end of the drill rod 23 away from the mounting frame 24, thereby reducing the possibility of deflection of the drill rod 23; install the adsorption member 252 on the support frame 25, the adsorption member 252 is a strong magnet, which is adsorbed and fixed on the metal support frame 25, and the inclination sensor 51 is adsorbed and fixed on the support frame 25, which is convenient for installation and disassembly of the inclination sensor 51, and reduces the possibility of vibration and falling off of the inclination sensor 51 and the support frame 25 bolt connection during the drilling process, and the verticality of the drill rod 23 during the drilling process is monitored in real time by the inclination sensor 51 to ensure The drill rod 23 is always kept vertical during the drilling process to prevent the pile foundation hole 3 from tilting; the metal baffle 232 is rotatably connected to the end of the drill rod 23 away from the mounting frame 24 through a rotating shaft, and the metal cutter head serving as the hole-opening member 233 is welded to the side of the baffle 232 away from the drill rod 23 to block the inner wall of the hollow drill rod 23 to prevent soil from entering; a fixing groove 242 communicating with the hollow drill rod 23 is opened on the mounting frame 24, and a metal connecting pipe 243 communicating with the inner wall of the drill rod 23 is installed in the fixing groove 242, the delivery pipe 7 is screwed and fixed to the connecting rod, concrete is pumped into the drill rod 23, and a portion of the drill rod 23 is lifted upward in the pile foundation hole 3, the baffle 232 is flushed open by the concrete, and the CFG pile is poured.

[0031] Embodiment 2 S100, the foundation is leveled, and the positioner 42 is inserted at the position where the pile foundation hole 3 is opened on the foundation. The positioning detection component 4 on the drilling rig 1 receives the signal of the positioner 42 and drives the drilling rig 1 to the position corresponding to the pile foundation hole 3 opened on the foundation; S110, the positioning unit 2 44 disposed at one end of the drilling rig 1 away from the drilling support 21 receives the signal of the positioner 42, and adjusts the position of the drilling rig 1 to move to the position where the pile foundation hole 3 is opened on the foundation; S200, the driving assembly 12 on the drilling rig frame 11 drives the drilling support 21 to stand up, and the drill rod 23 on the drilling support 21 corresponds to the position of the pile foundation hole 3; S210, after the drilling rig 1 moves to the position for opening the pile foundation hole 3 in the foundation, the driving member 2 121 on the drilling rig frame 11 drives the drilling bracket 21 to stand up, and the positioning unit 1 41 installed on the mounting frame 24 provided on the drilling bracket 21 receives the signal of the positioner 42, and adjusts the position of the drilling rig 1 so that the drill hole on the mounting frame 24 corresponds to the position for opening the pile foundation hole 3; S300, start the driving member 241 on the drilling support 21, the driving member 241 drives the drill rod 23 to rotate, and the pile foundation hole 3 is excavated. The vertical detection component 5 provided on the drilling support 21 monitors the verticality of the drill rod 23, and the drill rod 23 is vertically excavated to the pile foundation hole 3; S310, the inclination sensor 51 provided on the support frame 25 on the drilling bracket 21 monitors the verticality of the drill rod 23 to ensure that the drill rod 23 can vertically open the pile foundation hole 3, and the current sensor 61 is installed on the driving member 241 on the mounting frame 24 to collect the current signal generated by the driving member 241 driving the drill rod 23 to excavate the pile foundation hole 3, so as to judge the excavation depth of the pile foundation hole 3; S400, after the excavation of the pile foundation hole 3 is completed, the drill rod 23 stops rotating, the connecting pipe 243 on the delivery pipe 7 mounting frame 24 is connected, and concrete is pumped into the hollow drill rod 23 through the delivery pipe 7 and the connecting pipe 243. The concrete breaks through the baffle 232 and falls into the bottom of the pile foundation hole 3. Then the drill rod 23 is slowly lifted up to fill the pile foundation hole 3 with concrete, and the CFG pile is poured.

[0032] The implementation principle of the embodiment of the present application is: The foundation is leveled, and the locator 42 is inserted into the position where the pile foundation hole 3 is opened on the foundation. The positioning unit 2 44 arranged at one end of the drilling rig 1 away from the drilling bracket 21 receives the signal of the locator 42, and the position of the drilling rig 1 is adjusted to move to the position where the pile foundation hole 3 is opened on the foundation through the controller 43 electrically connected to the positioning unit. After the drilling rig 1 moves to the position where the pile foundation hole 3 is opened on the foundation, the driving member 2 121 on the drilling rig frame 11 drives the drilling bracket 21 to stand up, and the positioning unit 1 41 installed on the mounting frame 24 arranged on the drilling bracket 21 receives the signal of the locator 42, and adjusts the position of the drilling rig 1 so that the drill hole on the mounting frame 24 corresponds to the position where the pile foundation hole 3 is opened; the driving member 1 241 on the drilling bracket 21 is started, and the driving member 1 241 drives the drill rod 23 to rotate, so as to excavate the pile foundation hole 3, and the support frame 25 on the drilling bracket 21 is far from the drill rod 23 The drill rod 23 is supported at one end away from the mounting frame 24, and the inclination sensor 51 arranged on the supporting frame 25 monitors the verticality of the drill rod 23 to ensure that the drill rod 23 can vertically open the pile foundation hole 3. The current sensor 61 is installed on the driving member 241 on the mounting frame 24 to collect the current signal generated by the driving member 241 driving the drill rod 23 to excavate the pile foundation hole 3, and make a judgment on the excavation depth of the pile foundation hole 3; after the excavation of the pile foundation hole 3 is completed, the drill rod 23 stops rotating, and a part of the drill rod 23 is lifted to facilitate the rotation and opening of the baffle 232, and the connecting pipe 243 on the conveying pipe 7 mounting frame 24 is connected, and concrete is pumped into the hollow drill rod 23 through the conveying pipe 7 and the connecting pipe 243, and the baffle 232 is flushed open to make the concrete fall into the bottom of the pile foundation hole 3, and then the drill rod 23 is slowly lifted to fill the pile foundation hole 3 with concrete, and the CFG pile is poured. The signal generated by the locator 42 is received by the positioning unit to determine the position of the pile foundation hole 3 excavated on the foundation, so that the drill rod 23 and the position of the pile foundation hole 3 are aligned, reducing the possibility of the pile foundation hole 3 being off-center. The verticality of the drill rod 23 is monitored by the inclination sensor 51 to ensure that the drill rod 23 excavates the pile foundation hole 3 vertically, reducing the deviation of the verticality of the pile foundation hole 3. The electrical signal generated by the driving member 241 driving the drill rod 23 to rotate and excavate the pile foundation hole 3 is detected and collected by the current sensor 61, and the excavation depth of the pile foundation hole 3 is judged to reduce the deviation of the depth of the pile foundation hole 3, so that the deviation of the pile position, pile hole depth and pile hole verticality of the pile hole opened by the drilling rig 1 is reduced, so that the bearing capacity of the subsequently cast CFG pile is better.

[0033] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-speed railway roadbed CFG pile drilling rig pile forming mechanism, comprising a drilling rig (1) arranged on a foundation, characterized in that: The drilling rig (1) comprises a drilling rig frame (11), a drilling structure (2) is arranged on the drilling rig frame (11), a pile foundation hole (3) is opened at a position corresponding to the drilling structure (2) on the foundation below the drilling structure (2), a driving component (12) is arranged on the drilling rig frame (11), the driving component (12) is connected to the drilling structure (2), a positioning detection component (4) is arranged on the drilling structure (2), and a vertical detection component (5) corresponding to the pile foundation hole (3) is arranged on the drilling structure (2).

2. The high-speed railway roadbed CFG pile drilling rig pile forming mechanism according to claim 1 is characterized by: The drilling structure (2) comprises a drilling support (21) hinged to the drilling rig frame (11), the drilling support (21) being connected to the driving assembly (12), a guide rail (22) being arranged at one end of the drilling support (21) close to the pile foundation hole (3), a hollow drill rod (23) corresponding to the pile foundation hole (3) being arranged on the drilling support (21), a mounting frame (24) being arranged at one end of the drill rod (23) away from the pile foundation hole (3), the drill rod (23) being rotatably connected to the mounting frame (24), and the drilling rod (23) and the mounting frame (24) being rotatably connected to each other. The mounting frame (24) corresponds to the guide rail (22) and moves along the direction of the guide rail (22); a driving member (241) is provided on the mounting frame (24); the driving member (241) is connected to the drill rod (23) to drive the drill rod (23) to rotate; a current detection component (6) corresponding to the driving member (241) is provided on the mounting frame (24); one end of the mounting frame (24) away from the drill rod (23) is connected to the driving component (12); and the drill rod (23) moves along the guide rail (22) toward the pile foundation hole (3).

3. The high-speed railway roadbed CFG pile drilling rig pile forming mechanism according to claim 2 is characterized by: The driving assembly (12) comprises a second driving member (121) arranged on the drilling rig frame (11); a driving rod of the second driving member (121) is rotatably connected to the drilling bracket (21); an end of the second driving member (121) away from the drilling bracket (21) is rotatably connected to the drilling rig frame (11); a winch (13) is arranged on the drilling rig frame (11); and a cable connected to the winch (13) is connected to the mounting frame (24).

4. The high-speed railway roadbed CFG pile drilling rig pile forming mechanism according to claim 3 is characterized by: One end of the mounting frame (24) away from the drill rod (23) is connected to the positioning detection assembly (4), and the positioning detection assembly (4) includes a positioning unit (41) arranged on the mounting frame (24). A positioner (42) is arranged on the foundation where the pile foundation hole (3) is opened, and the positioner (42) corresponds to the positioning unit (41). A controller (43) electrically connected to the positioning unit (41) is arranged on the drilling rig frame (11). The positioning unit (41) receives a signal from the positioner (42) and transmits it back to the controller (43). The drilling rig frame (11) moves to the position where the pile foundation hole (3) is opened through the controller (43) so that the drill rod (23) corresponds to the position of the pile foundation hole (3).

5. The high-speed railway roadbed CFG pile drilling rig pile forming mechanism according to claim 4, characterized in that: A second positioning unit (44) is provided on one end of the drilling rig frame (11) away from the drilling support (21), the second positioning unit (44) corresponds to the positioner (42), the second positioning unit (44) is electrically connected to the controller (43), a spiral blade (231) is provided on the side wall of the drill rod (23), the spiral blade (231) rotates with the drill rod (23) to dig the pile foundation hole (3), and a support frame (25) is provided on one end of the drilling support (21) away from the mounting frame (24), a connecting groove (251) corresponding to the drill rod (23) is provided on the support frame (25), the support frame (25) is connected to the vertical detection component (5), and the vertical detection component (5) corresponds to the drill rod (23).

6. The high-speed railway roadbed CFG pile drilling rig pile forming mechanism according to claim 5, characterized in that: The vertical detection component (5) comprises an inclination sensor (51), the inclination sensor (51) is connected to the support frame (25), the inclination sensor (51) detects the verticality of the drill rod (23), an adsorption member (252) is provided at one end of the support frame (25) away from the pile foundation hole (3), and the inclination sensor (51) is connected to the adsorption member (252) and fixed on the support frame (25).

7. The high-speed railway roadbed CFG pile drilling rig pile forming mechanism according to claim 2, characterized in that: The current detection component (6) comprises a current sensor (61), which is arranged on the driving member 1 (241) on the mounting frame (24) and is electrically connected to the driving member 1 (241). The current sensor (61) detects the current change generated by the driving member 1 (241) driving the drill rod (23) to rotate, and determines the drilling position of the drill rod (23).

8. The high-speed railway roadbed CFG pile drilling rig pile forming mechanism according to claim 7, characterized in that: The mounting frame (24) is provided with a fixing groove (242), a connecting pipe (243) in communication with the inner wall of the drill rod (23) is arranged in the fixing groove (242), a delivery pipe (7) is arranged at one end of the connecting pipe (243) away from the drill rod (23), the delivery pipe (7) delivers concrete into the drill rod (23), a baffle (232) is rotatably arranged at one end of the drill rod (23) close to the pile foundation hole (3), the baffle (232) blocks the inner wall of the hollow drill rod (23), and a hole opening member (233) is arranged at one end of the baffle (232) away from the drill rod (23).

9. The construction method of the CFG pile drilling rig pile-forming mechanism for high-speed railway roadbed is characterized by: The high-speed railway roadbed CFG pile drilling rig pile forming mechanism comprises the following: S100, the foundation is leveled, a positioner (42) is inserted at a position where a pile foundation hole (3) is opened on the foundation, a positioning detection component (4) on the drilling machine (1) receives a signal from the positioner (42), and drives the drilling machine (1) to a position corresponding to the pile foundation hole (3) opened on the foundation; S200, the driving assembly (12) on the drilling rig frame (11) drives the drilling support (21) to stand up, and the drill rod (23) on the drilling support (21) corresponds to the position of the pile foundation hole (3); S300, starting a driving member 1 (241) on the drilling support (21), the driving member 1 (241) drives the drill rod (23) to rotate, and excavates the pile foundation hole (3); a vertical detection component (5) provided on the drilling support (21) monitors the verticality of the drill rod (23), and the pillow supports the drill rod (23) to vertically excavate the pile foundation hole (3); S400, after the excavation of the pile foundation hole (3) is completed, the drill rod (23) stops rotating, the delivery pipe (7) is connected to the connecting pipe (243) on the mounting frame (24), and concrete is pumped into the hollow drill rod (23) through the delivery pipe (7) and the connecting pipe (243), and the concrete breaks through the baffle (232) and falls into the bottom of the pile foundation hole (3), and then the drill rod (23) is slowly lifted up to fill the pile foundation hole (3) with concrete, and the CFG pile is poured.

10. The construction method of the high-speed railway roadbed CFG pile drilling rig pile forming mechanism according to claim 9, characterized in that: S110, a second positioning unit (44) disposed at one end of the drilling rig (1) away from the drilling support (21) receives a signal from the positioner (42) and adjusts the position of the drilling rig (1) to move toward a position where a pile foundation hole (3) is to be opened on the foundation; S210, after the drilling rig (1) moves to the position for opening the pile foundation hole (3) in the foundation, the second driving member (121) on the drilling rig frame (11) drives the drilling support (21) to stand up, and the first positioning unit (41) installed on the mounting frame (24) provided on the drilling support (21) receives the signal of the positioner (42), and adjusts the position of the drilling rig (1) so that the drill hole on the mounting frame (24) corresponds to the position for opening the pile foundation hole (3); S310, the inclination sensor (51) arranged on the support frame (25) on the drilling support (21) monitors the verticality of the drill rod (23) to ensure that the drill rod (23) can vertically open the pile foundation hole (3), and the current sensor (61) is installed on the driving member 1 (241) on the mounting frame (24) to collect the current signal generated by the driving member 1 (241) driving the drill rod (23) to excavate the pile foundation hole (3), so as to judge the excavation depth of the pile foundation hole (3).

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