Pile foundation rapid forming device and construction process thereof

Abstract

The application relates to a pile foundation rapid forming device and a construction process thereof, which comprises a rack, a first lifting platform and a second lifting platform are arranged on the rack and slide in the vertical direction, the first lifting platform is located below the second lifting platform, a first lifting assembly for driving the first lifting platform to lift is arranged on the rack, and a second lifting assembly for driving the second lifting platform to lift is arranged on the rack; a punching pile is rotatably arranged on the first lifting platform, the punching pile is vertically arranged and penetrates through the first lifting platform, the punching pile is hollow and is provided with openings at both ends, a drill cylinder is coaxially and fixedly arranged on the bottom wall of the punching pile, a first driving assembly for driving the punching pile to rotate is arranged on the first lifting platform, and a soil taking mechanism is arranged on the second lifting platform, and the soil taking mechanism is used for taking out the soil in the punching pile. The application has the effect of improving the finished product quality of the cast-in-place pile.

Description

Technical Field

[0001] This application relates to the technical field of pile foundation construction technology, and in particular to a rapid pile foundation prototyping equipment and its construction technology. Background Technology

[0002] Pile foundations, also known as pile foundations, are the most widely used type of deep foundation. They consist of several piles driven into the soil and a pile cap or pile cap beam connecting the tops of the piles. The function of the piles is to transfer the load of the superstructure to the deeper soil layer with stronger bearing capacity, or to compact the weak soil layer to improve the bearing capacity and density of the foundation soil.

[0003] Currently, piles used for pile foundations are mainly divided into two categories: precast piles and cast-in-place piles. Precast piles are driven into the ground using methods such as hammering, vibration, pressing, and water jetting during construction. Cast-in-place piles, on the other hand, are usually constructed by drilling holes in the foundation soil using mechanical drilling, steel pipe extrusion, or manual digging. Then, a steel cage is placed in the pile hole and concrete is poured into the hole to form a pile.

[0004] However, during the construction of cast-in-place piles, in some areas where the soil layer has a high sand content, the soil layer around the pile hole is prone to loosening after the pile hole is drilled on the ground. When concrete is poured into the pile hole, the loose soil around the pile hole is prone to fall off from the hole wall and mix into the concrete, thus affecting the quality of the finished cast-in-place pile. Summary of the Invention

[0005] To improve the quality of finished cast-in-place piles, this application provides a rapid prototyping device for pile foundations and its construction process.

[0006] Firstly, this application provides a rapid prototyping device for pile foundations, which adopts the following technical solution:

[0007] A rapid pile foundation prototyping equipment includes a frame, on which a first lifting platform and a second lifting platform are slidably arranged in a vertical direction. The first lifting platform is located below the second lifting platform. The frame is provided with a first lifting component for driving the first lifting platform to rise and fall, and a second lifting component for driving the second lifting platform to rise and fall.

[0008] A drilled pile is rotatably mounted on the first lifting platform. The drilled pile is vertically mounted and penetrates the first lifting platform. The drilled pile is hollow and open at both ends. A drill cylinder is coaxially fixed to the bottom wall of the drilled pile. A first driving component for driving the drilled pile to rotate is mounted on the first lifting platform. A soil removal mechanism is mounted on the second lifting platform for removing soil from the drilled pile.

[0009] By adopting the above technical solution, during the construction of the cast-in-place pile, the frame is moved to the construction position, aligning the drilled pile and the cast-in-place pile. The first drive assembly drives the drilled pile to rotate, and the first lifting assembly drives the first lifting platform to descend, drilling the drilled pile into the ground through the drill cylinder on the drilled pile. Simultaneously, the second lifting assembly drives the second lifting platform to rise and fall, and the soil removal mechanism removes the soil from the drilled pile. After drilling is completed, the second lifting assembly drives the second lifting platform to rise, at which point the drilled pile... It is still located inside the pile hole, and the side wall of the drilled pile is in contact with the hole wall. The reinforcing cage is placed into the drilled pile, and concrete is poured into the drilled pile. When the drilled pile is filled with concrete, the first lifting component drives the first lifting platform to rise, so that the drilled pile slowly exits the pile hole. At the same time, concrete continues to be poured into the drilled pile to fill the gap in the pile hole when the drilled pile exits. When pouring concrete into the pile hole, the loose soil in the pile hole is not easily mixed into the concrete, which greatly improves the finished quality of the cast-in-place pile.

[0010] Optionally, the first drive assembly includes a gear ring, a drive gear, and a motor. The gear ring is sleeved on the drilled pile and is coaxially and fixedly connected to the drilled pile. The gear ring has external teeth. The drive gear is rotatably mounted on the first lifting platform and meshes with the external teeth of the gear ring. The motor is fixedly mounted on the first lifting platform, and the output shaft of the motor is coaxially and fixedly connected to the drive gear.

[0011] By adopting the above technical solution, the drive gear is driven to rotate by an electric motor, and the rotation of the drive gear drives the gear ring to rotate, thereby driving the drilled pile to rotate.

[0012] Optionally, the soil sampling mechanism includes a support frame, a second drive assembly, a soil sampling roller, and a drive source. The support frame is rotatably mounted on a first lifting platform, and the rotation axis of the support frame is vertical. The second drive assembly is used to drive the support frame to rotate. The soil sampling roller is rotatably mounted on the support frame, and the axial direction of the soil sampling roller is vertical. A spiral blade is fixedly mounted on the soil sampling roller, and the soil sampling roller is used to insert into the drilled pile. The drive source is used to drive the soil sampling roller to rotate.

[0013] By adopting the above technical solution, while the bored pile is being drilled into the ground, the second lifting platform moves together with the first lifting platform. The soil entering the bored pile is dispersed by the spiral blades on the soil-collecting roller and enters the gaps between the spiral blades. When the drilling is completed, the second lifting platform rises and drives the soil-collecting roller to detach from the bored pile, thereby taking the soil out of the bored pile. Then, the second drive component drives the support frame to rotate, so that the steel cage can be smoothly placed into the bored pile.

[0014] Optionally, a cover is rotatably mounted on the first lifting platform to seal the top of the drilled pile. A third drive assembly is provided on the first lifting platform to drive the cover to rotate. A slurry storage tank for storing concrete is provided on the first lifting platform. The top of the slurry storage tank is open. The slurry storage tank is connected to a grouting pipe. The grouting pipe is fixedly mounted on the cover and passes through the cover. A grouting assembly is provided on the first lifting platform to press the concrete in the slurry storage tank into the grouting pipe.

[0015] By adopting the above technical solution, after the drilled pile is filled with concrete, the third drive component drives the cap to rotate to the top of the drilled pile to seal the top of the drilled pile. At the same time as the drilled pile exits the pile hole, the grouting component presses concrete into the drilled pile, which improves the density of the concrete in the pile hole and to a certain extent prevents the surface of the cast-in-place pile from having voids, thereby affecting the strength of the cast-in-place pile.

[0016] Optionally, the grouting assembly includes a grouting plate and a first driving member. The grouting plate is slidably disposed on the first lifting platform in a vertical direction, and the grouting plate is used to slide into the grout storage tank. The grouting plate is adapted to the inner wall of the grout storage tank, and the first driving member is used to drive the grouting plate to slide.

[0017] By adopting the above technical solution, the first driving component drives the grouting plate to slide, so that the grouting plate enters the grout storage tank. After the grouting plate enters the grout storage tank, it applies a certain downward pressure to the concrete inside the grout storage tank, thereby pressing the concrete into the grouting pipe and then into the drilled pile.

[0018] Optionally, a sealing sleeve is slidably disposed on the cover along the direction perpendicular to the cover, and a second driving member is disposed on the cover for driving the sealing sleeve to slide. The axial direction of the sealing sleeve is perpendicular to the cover, and a sealing gasket is disposed at the end of the sealing sleeve away from the cover. The sealing gasket is used to abut against the top of the drilled pile.

[0019] By adopting the above technical solution, when the cap seals the top of the drilled pile, the second driving component drives the sealing sleeve to slide, so that the sealing gasket presses against the top of the drilled pile, thereby improving the sealing effect of the cap on the top of the drilled pile and further improving the grouting effect.

[0020] Optionally, the drill barrel is detachably connected to the drilled pile, and the drilled pile is provided with a fixing component for fixing the drill barrel.

[0021] By adopting the above technical solution, the drill barrel is prone to wear after a certain period of use. By detachably installing the drill barrel on the drilled pile, it is easy to replace the drill barrel, which increases practicality and reduces costs.

[0022] Optionally, the fixing assembly includes a mounting sleeve, a plug-in block, and a fixing member. The mounting sleeve is coaxially fixedly disposed at the bottom end of the drilled pile. One end of the drill barrel has an mounting groove communicating with the inside of the drill barrel along the axial direction of the drill barrel. The mounting groove is adapted to the mounting sleeve. The plug-in block is fixedly disposed on the side wall of the mounting sleeve. The end of the drill barrel with the mounting groove has a plug-in groove along the axial direction of the drill barrel. The plug-in block is adapted to the plug-in groove. The fixing member is used to prevent the plug-in block from sliding in the plug-in groove.

[0023] By adopting the above technical solution, the drill barrel is fitted onto the mounting sleeve through the mounting groove, and the plug block is inserted into the plug groove to prevent relative rotation between the drill barrel and the mounting sleeve. Then, the plug block is fixed in the plug groove by the fastener, thereby fixing the drill barrel onto the drilled pile.

[0024] Secondly, this application provides a construction process for a rapid prototyping device for pile foundations, employing the following technical solution:

[0025] A construction process for a rapid pile foundation prototyping device includes the following steps:

[0026] S1. Move the frame to the construction position and align the construction positions of the bored pile and the cast-in-place pile. Drive the bored pile to rotate and lower the first lifting platform. Drill the bored pile into the ground through the drill cylinder on the bored pile.

[0027] S2. Drive the second lifting platform to rise and fall, and remove the soil from the drilled pile through the soil removal mechanism.

[0028] S3. Place the reinforcing cage into the bored pile and pour concrete into the bored pile;

[0029] S4. After the drilled pile is filled with concrete, the first lifting platform is driven to rise, so that the drilled pile is slowly withdrawn from the pile hole. At the same time, concrete continues to be poured into the drilled pile to fill the gap in the pile hole when the drilled pile withdraws.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. During the construction of the cast-in-place pile, the frame is moved to the construction position, and the construction positions of the bored pile and the cast-in-place pile are aligned. The bored pile is driven to rotate by the first drive component, and the first lifting component is driven to lower the first lifting platform. The bored pile is drilled into the ground through the drill cylinder on the bored pile. At the same time, the second lifting component is driven to raise and lower the second lifting platform, and the soil in the bored pile is removed by the soil removal mechanism. After drilling is completed, the second lifting component is driven to raise the second lifting platform. At this time, the bored pile is still in the pile hole, and the side wall of the bored pile is in contact with the wall of the pile hole. The reinforcing cage is placed into the bored pile, and concrete is poured into the bored pile. When the bored pile is filled with concrete, the first lifting component drives the first lifting platform to rise, so that the bored pile is slowly withdrawn from the pile hole. At the same time, concrete continues to be poured into the bored pile to fill the gap in the pile hole when the bored pile is withdrawn. When pouring concrete into the pile hole, the loose soil in the pile hole is not easily mixed into the concrete, which greatly improves the quality of the finished cast-in-place pile.

[0032] 2. After the drilled pile is filled with concrete, the third drive component drives the cap to rotate to the top of the drilled pile to seal the top of the drilled pile. As the drilled pile exits the pile hole, the grouting component presses concrete into the drilled pile to increase the density of the concrete in the pile hole and to a certain extent prevents the surface of the cast-in-place pile from having voids, thus affecting the strength of the cast-in-place pile. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0034] Figure 2 This is a partial structural schematic diagram of an embodiment of this application, mainly used to illustrate the structural schematic diagram of the first lifting platform;

[0035] Figure 3 yes Figure 2 Enlarged view of section A;

[0036] Figure 4 This is a partial structural schematic diagram of an embodiment of this application, mainly used to illustrate the structural schematic diagram of the cap;

[0037] Figure 5 This is a partial structural schematic diagram of an embodiment of this application, mainly used to illustrate the structural schematic diagram of the second lifting platform.

[0038] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Slide groove; 12. First lead screw; 13. First motor; 14. Second lead screw; 15. Second motor; 2. First lifting platform; 21. First slider; 22. Gear ring; 23. Drive gear; 24. Motor; 25. Rotating frame; 26. Driving gear; 27. Driven gear; 28. Stepper motor; 29. ​​Fixed frame; 3. Second lifting platform; 31. Second slider; 4. Drilling pile; 41. Drill barrel; 4 11. Mounting slot; 412. Insertion slot; 42. Mounting sleeve; 43. Insertion block; 44. Fixing component; 5. Soil sampling mechanism; 51. Support frame; 52. Soil sampling roller; 53. Drive source; 54. First gear; 55. Second gear; 56. Servo motor; 6. Cover; 61. Sealing sleeve; 62. Sealing gasket; 63. Second drive component; 7. Grout storage tank; 71. Grouting pipe; 8. Grouting assembly; 81. Grouting plate; 82. First drive component. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0040] This application discloses a rapid prototyping device for pile foundations. (Refer to...) Figure 1 It includes a frame 1 and a first lifting platform 2 and a second lifting platform 3 that are slidably mounted on the frame 1 in a vertical direction. The first lifting platform 2 is located below the second lifting platform 3. A drilled pile 4 is rotatably mounted on the first lifting platform 2, and a soil extraction mechanism 5 for removing soil from the drilled pile 4 is mounted on the second lifting platform 3.

[0041] Reference Figure 1 The side wall of the frame 1 is provided with a slide groove 11 in the vertical direction. A first slider 21 is fixedly installed on the first lifting platform 2, and a second slider 31 is fixedly installed on the second lifting platform 3. The first slider 21 and the second slider 31 are both slidably installed in the slide groove 11. The slide groove 11 is a T-shaped groove, and the first slider 21 and the second slider 31 are both adapted to the slide groove 11.

[0042] Reference Figure 1 The frame 1 is provided with a first lifting assembly for driving the first lifting platform 2 to rise and fall. The first lifting assembly includes a first lead screw 12 and a first motor 13. The first lead screw 12 is rotatably disposed in the slide groove 11 and the axis of the first lead screw 12 is vertical. A first threaded hole is opened on the first slider 21 along the axis of the first lead screw 12. The first lead screw 12 passes through the first threaded hole and is threadedly connected to the first slider 21. A first through hole is opened on the second slider 31 for the first lead screw 12 to pass through. The first motor 13 is fixedly disposed on the top wall of the frame 1, and the output shaft of the first motor 13 extends into the slide groove 11 and is coaxially fixedly connected to the first lead screw 12.

[0043] Reference Figure 1The frame 1 is provided with a second lifting assembly for driving the second lifting platform 3 to rise and fall. The second lifting assembly includes a second lead screw 14 and a second motor 15. The second lead screw 14 is rotatably disposed in the slide groove 11, and the first lead screw 12 is parallel to the second lead screw 14. A second threaded hole is opened on the second slider 31 along the axial direction of the second lead screw 14. The second lead screw 14 passes through the second threaded hole and is threadedly connected to the second slider 31. A second through hole is opened on the first slider 21 for the second lead screw 14 to pass through. The second motor 15 is fixedly disposed on the top wall of the frame 1, and the output shaft of the second motor 15 extends into the slide groove 11 and is coaxially fixedly connected to the second lead screw 14.

[0044] Reference Figure 1 , 2 The drilled pile 4 is vertically arranged and passes through the first lifting platform 2. The drilled pile 4 is hollow and has openings at both ends. The first lifting platform 2 is provided with a first driving assembly for driving the drilled pile 4 to rotate. The first driving assembly includes a gear ring 22, a drive gear 23 and a motor 24. The gear ring 22 is sleeved on the drilled pile 4 and is coaxially fixedly connected to the drilled pile 4. The gear ring 22 has external teeth. The drive gear 23 is rotatably arranged on the first lifting platform 2 and meshes with the external teeth of the gear ring 22. The motor 24 is fixedly arranged on the first lifting platform 2, and the output shaft of the motor 24 is coaxially fixedly connected to the drive gear 23.

[0045] Reference Figure 2 , 3 A drill cylinder 41 is coaxially fixed to the bottom wall of the drilled pile 4. A fixing component for fixing the drill cylinder 41 is provided on the drilled pile 4. The fixing component includes an installation sleeve 42, a plug-in block 43 and a fixing member 44. The installation sleeve 42 is coaxially fixed to the bottom end of the drilled pile 4. One end of the drill cylinder 41 has an installation groove 411 that communicates with the inside of the drill cylinder 41 along the axial direction of the drill cylinder 41. The installation groove 411 is adapted to the installation sleeve 42. Four plug-in blocks 43 are provided, and all four plug-in blocks 43 are fixed to the side wall of the installation sleeve 42. The four plug-in blocks 43 are evenly distributed on the installation sleeve 42 along the circumference of the installation sleeve 42. The end of the drill cylinder 41 with the installation groove 411 has four plug-in slots 412 along the axial direction of the drill cylinder 41. The plug-in blocks 43 correspond one-to-one with the plug-in slots 412.

[0046] Reference Figure 3 The fastener 44 includes a bolt. The side wall of the drill barrel 41 has four mounting holes, each of which is connected to a plug slot 412. Each plug block 43 has a third threaded hole on its side wall. The third threaded hole is adapted to the bolt. When the plug block 43 is fully inserted into the plug slot 412, the mounting hole and the third threaded hole on the plug block 43 are aligned.

[0047] Reference Figure 3The drill barrel 41 has several conical teeth at the end away from the installation groove 411, and the conical teeth are distributed around the circumference of the drill barrel 41. When the cast-in-place pile is being constructed, the frame 1 is moved to the construction position and the drilled pile 4 is aligned with the construction position of the cast-in-place pile. The drive gear 23 is driven to rotate by the motor 24. The rotation of the drive gear 23 drives the gear ring 22 to rotate, thereby driving the drilled pile 4 to rotate. The first lead screw 12 is driven to rotate by the first motor 13, thereby driving the first lifting platform 2 to descend. The drilled pile 4 is then drilled into the ground through the drill barrel 41.

[0048] Reference Figure 2 A rotating frame 25 is rotatably mounted on the top wall of the first lifting platform 2. The rotating shaft of the rotating frame 25 is vertical. A third driving assembly for driving the cover 6 to rotate is mounted on the first lifting platform 2. The third driving assembly includes a driving gear 26, a driven gear 27, and a stepper motor 28. The driven gear 27 is fixedly connected to the rotating frame 25, and the central axis of the driven gear 27 coincides with the central axis of the rotating frame 25. The driving gear 26 is rotatably mounted on the top wall of the first lifting platform 2 and meshes with the driven gear 27. The stepper motor 28 is fixedly mounted on the top wall of the first lifting platform 2 and is coaxially fixedly connected to the driving gear 26.

[0049] Reference Figure 2 , 4 A cover 6 is fixedly installed on the rotating frame 25. The cover 6 is disc-shaped and can be rotated to be directly above the drilled pile 4. An annular groove is opened on the bottom wall of the cover 6 along the circumference of the cover 6. A sealing sleeve 61 is slidably installed in the annular groove of the cover 6 in the direction perpendicular to the cover 6. The sealing sleeve 61 is adapted to the annular groove, and the central axis of the sealing sleeve 61 coincides with the central axis of the cover 6. A sealing gasket 62 is provided at the end of the sealing sleeve 61 away from the cover 6. The sealing gasket 62 is made of rubber and is used to abut the top of the drilled pile 4.

[0050] Reference Figure 4 The cover 6 is provided with a second driving member 63 for driving the sealing sleeve 61 to slide. The second driving member 63 includes a servo cylinder, which is fixedly mounted on the top wall of the cover 6, and the piston rod of the servo cylinder extends into the annular groove and is fixedly connected to the sealing sleeve 61.

[0051] Reference Figure 2 , 4 A slurry storage tank 7 is also fixedly installed on the top wall of the first lifting platform 2. The top wall of the slurry storage tank 7 is open, and the side wall of the slurry storage tank 7 is connected to a grouting pipe 71. The grouting pipe 71 is a rubber hose. The end of the grouting pipe 71 away from the slurry storage tank 7 is fixedly installed on the cover 6 and passes through the cover 6.

[0052] Reference Figure 2The first lifting platform 2 is equipped with a grouting assembly 8 for pressing concrete from the grout storage tank 7 into the grouting pipe 71. The grouting assembly 8 includes a grouting plate 81 and a first driving component 82. A fixed frame 29 is fixedly installed on the top wall of the first lifting platform 2 and on one side of the grout storage tank 7. The grouting plate 81 is slidably installed on the fixed frame 29 in the vertical direction and is horizontally installed. The grouting plate 81 is adapted to the inner bottom wall of the grout storage tank 7. The first driving component 82 includes a hydraulic cylinder, which is fixedly installed on the fixed frame 29 and the piston rod of the hydraulic cylinder is fixedly connected to the grouting plate 81.

[0053] After the drilled pile 4 is drilled into the ground, the soil inside the drilled pile 4 is removed by the soil removal mechanism 5, the steel cage is placed into the drilled pile 4, and concrete is poured into the drilled pile 4. When the drilled pile 4 is filled with concrete, the stepper motor 28 drives the rotating frame 25 to rotate, so that the cover 6 rotates to the top of the drilled pile 4. The servo cylinder drives the sealing sleeve 61 to slide, so that the sealing gasket 62 presses against the top of the drilled pile 4 to seal the top of the drilled pile 4. Alternatively, after the steel cage is placed into the drilled pile 4, the cover 6 can be rotated directly to the top of the drilled pile 4 to seal the drilled pile 4. Concrete is then introduced into the grout storage tank 7. After entering the grout storage tank 7, the concrete flows into the drilled pile 4 through the grouting pipe 71 for grouting.

[0054] As the drilled pile 4 exits the pile hole, the hydraulic cylinder drives the grouting plate 81 to slide, allowing the grouting plate 81 to enter the grout storage tank 7. After the grouting plate 81 enters the grout storage tank 7, it applies a certain downward pressure to the concrete inside the grout storage tank 7, thereby pressing the concrete into the grouting pipe 71 and then into the drilled pile 4. This compacts the concrete inside the pile hole and, to a certain extent, prevents voids from appearing on the surface of the cast-in-place pile after it has been formed, thus affecting the strength of the cast-in-place pile.

[0055] Reference Figure 5 The soil-taking mechanism 5 includes a support frame 51, a second drive assembly, a soil-taking roller 52, and a drive source 53. The support frame 51 is rotatably mounted on the first lifting platform 2, and the rotation axis of the support frame 51 is vertical. The second drive assembly includes a first gear 54, a second gear 55, and a servo motor 56. The first gear 54 is fixedly connected to the support frame 51, and the central axis of the first gear 54 coincides with the rotation axis of the support frame 51. The second gear 55 is rotatably mounted on the second lifting platform 3 and meshes with the first gear 54. The servo motor 56 is fixedly mounted on the second lifting platform 3, and the output shaft of the servo motor 56 is coaxially fixedly connected to the second gear 55.

[0056] Reference Figure 5The soil-collecting roller 52 is rotatably mounted on the support frame 51, and the axial direction of the soil-collecting roller 52 is vertical. A spiral blade is fixedly mounted on the soil-collecting roller 52, and the projection of the spiral blade in the vertical direction is adapted to the inner diameter of the drilled pile 4. The drive source 53 includes a drive motor, which is fixedly mounted on the support frame 51, and the output shaft of the drive motor is coaxially and fixedly connected to the soil-collecting roller 52.

[0057] As the drilled pile 4 is driven into the ground, the second lifting platform 3 moves together with the first lifting platform 2 and drives the soil-collecting roller 52 to rotate via a drive motor. The soil inside the drilled pile 4 is broken up by the spiral blades on the soil-collecting roller 52 and enters the gaps between the spiral blades. When the drilling is completed, the second lifting platform 3 rises and drives the soil-collecting roller 52 to detach from the drilled pile 4, thereby taking the soil out of the drilled pile 4. Then, the servo motor 56 drives the support frame 51 to rotate, causing the soil-collecting roller 52 to deviate from the top of the drilled pile 4, so that the steel cage can be smoothly placed into the drilled pile 4.

[0058] The implementation principle of a rapid prototyping device for pile foundations in this application embodiment is as follows: During the construction of cast-in-place piles, the frame 1 is moved to the construction position, and the drilled pile 4 is aligned with the construction position of the cast-in-place pile. The drive gear 23 is driven to rotate by the motor 24, and the drive gear 23 rotates, thereby driving the drilled pile 4 to rotate. The first lead screw 12 is driven to rotate by the first motor 13, thereby driving the first lifting platform 2 to descend. The drilled pile 4 is drilled into the ground through the drill cylinder 41. At the same time, the second lifting platform 3 moves together with the first lifting platform 2, and the soil-collecting roller 52 is driven to rotate by the drive motor. The soil entering the drilled pile 4 is dispersed by the spiral blades on the soil-collecting roller 52 and enters the gap between the spiral blades. When the drilling is completed, the second lifting platform 3 rises, driving the soil-collecting roller 52 to disengage from the drilled pile 4, thereby taking the soil out of the drilled pile 4. Then, the servo motor 56 drives the support frame 51 to rotate, driving the soil-collecting roller 52 to deviate from directly above the drilled pile 4.

[0059] The reinforcing cage is placed into the bored pile 4, and concrete is poured into the bored pile 4. After the bored pile 4 is filled with concrete, the stepper motor 28 drives the rotating frame 25 to rotate, causing the cover 6 to rotate above the bored pile 4. The servo cylinder drives the sealing sleeve 61 to slide, causing the sealing gasket 62 to press against the top of the bored pile 4, sealing the top of the bored pile 4. Concrete is then introduced into the slurry storage tank 7. Afterward, the first lifting platform 2 is driven to rise, causing the bored pile 4 to slowly exit the pile hole. At the same time, through... The hydraulic cylinder drives the grouting plate 81 to slide, so that the grouting plate 81 enters the grout storage tank 7. After the grouting plate 81 enters the grout storage tank 7, it applies a certain downward pressure to the concrete inside the grout storage tank 7, thereby pressing the concrete into the grouting pipe 71 and then into the bored pile 4. This compacts the concrete in the pile hole and fills the gap in the pile hole when the bored pile 4 is withdrawn. When pouring concrete into the pile hole, the loose soil in the pile hole is not easily mixed into the concrete, which greatly improves the finished quality of the cast-in-place pile.

[0060] This application also discloses a construction process for a rapid prototyping equipment for pile foundations, including the following steps:

[0061] S1. Move the frame 1 to the construction position and align the drilled pile 4 with the construction position of the cast-in-place pile. Drive the drilled pile 4 to rotate and lower the first lifting platform 2. Drill the drilled pile 4 into the ground through the drill cylinder 41 on the drilled pile 4. At the same time, the second lifting platform 3 moves together with the first lifting platform 2 and drives the soil-taking roller 52 to rotate. The soil entering the drilled pile 4 is broken up by the spiral blades on the soil-taking roller 52 and enters the gap between the spiral blades.

[0062] S2. After drilling is completed, the second lifting platform 3 rises and drives the soil-taking roller 52 to disengage from the drilled pile 4, thereby bringing the soil out of the drilled pile 4. Then, the servo motor 56 drives the support frame 51 to rotate, causing the soil-taking roller 52 to deviate from the top of the drilled pile 4.

[0063] S3. Place the steel cage into the bored pile 4 and pour concrete into the bored pile 4.

[0064] S4. After the drilled pile 4 is filled with concrete, the stepper motor 28 drives the rotating frame 25 to rotate, so that the cover 6 rotates to the top of the drilled pile 4. The servo cylinder drives the sealing sleeve 61 to slide, so that the sealing gasket 62 presses against the top of the drilled pile 4 to seal the top of the drilled pile 4. Concrete is introduced into the grout storage tank 7. Then, the first lifting platform 2 is driven to rise, so that the drilled pile 4 slowly exits the pile hole. At the same time, the hydraulic cylinder drives the grouting plate 81 to slide, so that the grouting plate 81 enters the grout storage tank 7. After the grouting plate 81 enters the grout storage tank 7, it applies a certain downward pressure to the concrete inside the grout storage tank 7, thereby pressing the concrete into the grouting pipe 71 and then into the drilled pile 4, compacting the concrete in the pile hole and filling the gap in the pile hole when the drilled pile 4 exits.

[0065] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rapid prototyping equipment for pile foundations, characterized in that: Includes a frame (1), on which a first lifting platform (2) and a second lifting platform (3) are slidably arranged in the vertical direction. The first lifting platform (2) is located below the second lifting platform (3). The frame (1) is provided with a first lifting component for driving the first lifting platform (2) to rise and fall, and a second lifting component for driving the second lifting platform (3) to rise and fall. A drilled pile (4) is rotatably mounted on the first lifting platform (2). The drilled pile (4) is vertically mounted and penetrates the first lifting platform (2). The drilled pile (4) is hollow and open at both ends. A drill cylinder (41) is coaxially fixed on the bottom wall of the drilled pile (4). A first driving component for driving the drilled pile (4) to rotate is mounted on the first lifting platform (2). A soil-taking mechanism (5) is mounted on the second lifting platform (3). The soil-taking mechanism (5) is used to remove soil from the drilled pile (4). A cover (6) is rotatably mounted on the first lifting platform (2). The cover (6) is used to seal the top of the drilled pile (4). A third drive assembly is provided on the first lifting platform (2) to drive the cover (6) to rotate. A slurry storage tank (7) for storing concrete is provided on the first lifting platform (2). The top of the slurry storage tank (7) is open. The slurry storage tank (7) is connected to a grouting pipe (71). The grouting pipe (71) is fixedly mounted on the cover (6) and passes through the cover (6). A grouting assembly (8) is provided on the first lifting platform (2) to press the concrete in the slurry storage tank (7) into the grouting pipe (71). The grouting assembly (8) includes a grouting plate (81) and a first driving member (82). The grouting plate (81) is slidably disposed on the first lifting platform (2) in the vertical direction, and the grouting plate (81) is used to slide into the grout storage tank (7). The grouting plate (81) is adapted to the inner wall of the grout storage tank (7). The first driving member (82) is used to drive the grouting plate (81) to slide. A sealing sleeve (61) is slidably disposed on the cover (6) in a direction perpendicular to the cover (6). A second driving member (63) is disposed on the cover (6) for driving the sealing sleeve (61) to slide. The axial direction of the sealing sleeve (61) is perpendicular to the cover (6), and a sealing gasket (62) is disposed at the end of the sealing sleeve (61) away from the cover (6). The sealing gasket (62) is used to abut against the top of the drilled pile (4).

2. The rapid prototyping equipment for pile foundations according to claim 1, characterized in that: The first drive assembly includes a gear ring (22), a drive gear (23), and a motor (24). The gear ring (22) is sleeved on the drilled pile (4) and coaxially fixedly connected to the drilled pile (4). The gear ring (22) has external teeth. The drive gear (23) is rotatably mounted on the first lifting platform (2) and meshes with the external teeth of the gear ring (22). The motor (24) is fixedly mounted on the first lifting platform (2), and the output shaft of the motor (24) is coaxially fixedly connected to the drive gear (23).

3. The rapid prototyping equipment for pile foundations according to claim 1, characterized in that: The soil sampling mechanism (5) includes a support frame (51), a second drive assembly, a soil sampling roller (52), and a drive source (53). The support frame (51) is rotatably mounted on the first lifting platform (2), and the rotation axis of the support frame (51) is vertical. The second drive assembly is used to drive the support frame (51) to rotate. The soil sampling roller (52) is rotatably mounted on the support frame (51), and the axial direction of the soil sampling roller (52) is vertical. A spiral blade is fixedly mounted on the soil sampling roller (52), and the soil sampling roller (52) is used to insert into the drilled pile (4). The drive source (53) is used to drive the soil sampling roller (52) to rotate.

4. The rapid prototyping equipment for pile foundations according to claim 1, characterized in that: The drill barrel (41) is detachably connected to the drilled pile (4), and the drilled pile (4) is provided with a fixing component for fixing the drill barrel (41).

5. The rapid prototyping equipment for pile foundations according to claim 4, characterized in that: The fixing assembly includes an installation sleeve (42), a plug-in block (43), and a fixing member (44). The installation sleeve (42) is coaxially fixed at the bottom end of the drilled pile (4). One end of the drill barrel (41) has an installation groove (411) that communicates with the inside of the drill barrel (41) along the axial direction of the drill barrel (41). The installation groove (411) is adapted to the installation sleeve (42). The plug-in block (43) is fixedly installed on the side wall of the installation sleeve (42). One end of the drill barrel (41) with the installation groove (411) has a plug-in groove (412) along the axial direction of the drill barrel (41). The plug-in block (43) is adapted to the plug-in groove (412). The fixing member (44) is used to prevent the plug-in block (43) from sliding in the plug-in groove (412).

6. The construction process of a rapid pile foundation prototyping equipment according to any one of claims 1-5, characterized in that, Includes the following steps: S1. Move the frame (1) to the construction position and make the drilling pile (4) face the construction position of the cast-in-place pile. Drive the drilling pile (4) to rotate and lower the first lifting platform (2). Drill the drilling pile (4) into the ground through the drill cylinder (41) on the drilling pile (4). S2. Drive the second lifting platform (3) to rise and fall, and remove the soil from the drilled pile (4) through the soil removal mechanism (5); S3. Place the steel cage into the bored pile (4) and pour concrete into the bored pile (4); S4. After the drilled pile (4) is filled with concrete, the cap (6) is rotated to the top of the drilled pile (4), and the sealing sleeve (61) is driven to slide, so that the sealing gasket (62) presses against the top of the drilled pile (4) to seal the top of the drilled pile (4). The first lifting platform (2) is driven to rise, so that the drilled pile (4) slowly exits the pile hole. At the same time, the hydraulic cylinder drives the grouting plate (81) to slide, so that the grouting plate (81) enters the grout storage tank (7). After the grouting plate (81) enters the grout storage tank (7), it applies downward pressure to the concrete inside the grout storage tank (7), thereby pressing the concrete into the grouting pipe (71) and then into the drilled pile (4) to compact the concrete in the pile hole and fill the gap in the pile hole when the drilled pile (4) exits.

Images