Piling equipment for cast-in-situ bored piles in multi-boulder region and construction method

Abstract

The pile driving equipment comprises a main machine body, a rack is arranged on the main machine body, a drilling rod, a lifting mechanism for driving the drilling rod to ascend and descend and a rotating mechanism for driving the drilling rod to rotate are arranged on the rack, and a drilling pile is arranged at the bottom end of the drilling rod; a hammering hole and a plurality of vibration rod holes surrounding the hammering hole are formed in the bottom of the drilled pile, a gravity block corresponding to the hammering hole and vibration rods corresponding to the vibration rod holes are arranged in the drilled pile, and a gravity hammer driven by a hammering oil cylinder is arranged above the gravity block. The upper end of the vibrating rod is fixedly connected with a vibrating chamber vibrating up and down, and the vibrating chamber is connected with a lifting oil cylinder through a mounting base. The device has the characteristics of improving the rock crushing degree and improving the construction efficiency.

Description

Technical Field

[0001] The invention relates to a pile driving device, in particular to a bored pile driving device and a construction method for areas with many boulders. Background Art

[0002] A boulder refers to an isolated rock or boulder formed during geological structure or geological action, which is isolated and exists independently by the surrounding environment or geological layer. An area with many boulders refers to an area with many rock layers and lack of rock stability. Since the compressibility of boulders is very low and very different from the compressibility of the surrounding soil, the implementation of foundation engineering in this area often faces great difficulties, which can easily cause uneven foundation and settlement. For example: 1. When there is a boulder in the soil layer under one base and no boulder in the soil layer under the other base, the settlement difference between the two foundations is too large and exceeds the allowable value of the specification. 2. When part of the independent foundation under the same column falls directly on the boulder and the other part falls on the soil, the settlement of different parts of the foundation is different and the foundation rotates. Therefore, when encountering pile construction in a boulder area, it is necessary to first crush the rock layer and then carry out cast-in-place pile construction to avoid subsequent settlement problems.

[0003] Existing bored pile driving equipment generally uses a power head to drive the drill bit to drill holes underground; when the drill bit contacts different matrices such as soil and rock, the treatment method adopted is the same. It is easier to break the soil, but it is more difficult to break the underground rock. The degree of crushing is weak, the crushing time required is long, and the work efficiency is not high. Summary of the invention

[0004] The purpose of the present invention is to provide a bored pile driving device and a construction method for areas with many isolated rocks. The present invention has the characteristics of improving the degree of rock crushing and improving the construction efficiency.

[0005] The technical solution of the present invention is as follows: a bored pile driving device for areas with many isolated rocks comprises a main body, a frame is arranged on the main body, a drill rod, a lifting mechanism for driving the drill rod to lift and lower, and a rotating mechanism for driving the drill rod to rotate are arranged on the frame, a bored pile is arranged at the bottom of the drill rod, a hammering hole and a plurality of vibrating rod holes surrounding the hammering hole are arranged at the bottom of the bored pile, a gravity block corresponding to the hammering hole and a vibrating rod corresponding to the vibrating rod hole are arranged inside the bored pile, a gravity hammer driven by a hammering cylinder is arranged above the gravity block, a vibration chamber for up and down vibration is fixedly connected to the upper end of the vibrating rod, and the vibration chamber is connected to a lifting cylinder via a mounting seat.

[0006] In the aforementioned bored pile driving equipment for areas with many boulders, a guide rod is provided inside the bored pile, a limit block is provided at the bottom of the guide rod, the gravity block moves up and down along the guide rod through the guide sleeve, and a buffer spring is provided outside the guide rod between the guide sleeve and the limit block.

[0007] In the aforementioned bored pile driving equipment for areas with many boulders, a pair of parallel driving shafts are provided inside the vibration chamber, and eccentric wheels are provided on the two driving shafts. The eccentric directions of the eccentric wheels on the two driving shafts are relatively distributed, and mutually meshing transmission gears are provided at one end of the two driving shafts, and a transmission wheel is provided at the other end of one of the driving shafts. A driving motor is also provided inside the vibration chamber, and a driving wheel is provided on the output shaft of the driving motor. The driving wheel and the transmission wheel are driven by a transmission belt.

[0008] In the aforementioned bored pile driving equipment for areas with many boulders, the vibration chamber is provided with a long screw connected to the mounting seat, and a shock-absorbing spring is sleeved on the long screw, one end of the shock-absorbing spring is connected to the vibration chamber, and the other end of the shock-absorbing spring is connected to the mounting seat.

[0009] In the aforementioned bored pile driving equipment for areas with many boulders, a plurality of circularly distributed impact blocks are provided at the bottom of the gravity block; an arc groove is provided between the bored pile and the gravity block, and a plurality of circularly distributed cutting gears and ground penetrating radars are provided at the bottom of the bored pile.

[0010] In the aforementioned bored pile driving equipment for areas with many boulders, the cutting gears are respectively located at the inner edge, middle and outer edge of the bored pile. The cutting direction of the cutting gear located at the inner edge of the bored pile is inward, the cutting direction of the cutting gear located in the middle of the bored pile is downward, and the cutting direction of the cutting gear located at the outer edge of the bored pile is outward.

[0011] In the aforementioned bored pile driving equipment for areas with many isolated rocks, the bored piles include a power seat and a pair of symmetrically distributed foundation piles, the power seat is connected to the drill rod, the top of the foundation pile is rotatably connected to the power seat, the two foundation piles are rotated with each other and spliced ​​into a working space surrounding the gravity block and the vibration rod, an isolation plate is provided in the working space, the isolation plate and the bottom of the foundation pile form a sand and gravel space connected to the outside world; a pair of driving cylinders are provided on the power seat, and the driving cylinders drive the bottom of the foundation pile to open or close respectively through a connecting rod group.

[0012] In the aforementioned bored pile driving equipment for areas with many boulders, a water collecting tank is provided on the drill rod above the bored pile, a water spray pipe extending into the sand and gravel space of the bored pile is provided on the water collecting tank, and a nozzle is provided on the water spray pipe.

[0013] The construction method of the bored pile driving equipment comprises the following steps:

[0014] S1. The main body moves the bored pile to a suitable position, the lifting mechanism adjusts the height of the bored pile, and the rotating mechanism drives the bored pile to rotate to break the ground and drill holes; the bored pile uses cutting gears with different cutting directions to cut and drill holes at different angles on the foundation to improve the ability of drilling and breaking the ground;

[0015] S2. When encountering isolated rock landforms, if the rock range is large, first drive the gravity hammer to hammer the gravity block downward through the hammering cylinder, so that the gravity block extends out of the bored pile and repeatedly hits the rock to break the large rock into small pieces;

[0016] S3. After the gravity block breaks the large rocks, the lifting cylinder drives the vibration rod to extend out of the vibration rod hole. At the same time, the rotating mechanism rotates the bored pile to adjust the position of the vibration rod so that the vibration rod corresponds to the small rocks. The vibration rod is driven by the vibration chamber to vibrate up and down at a high frequency, breaking the small rocks into fine stones.

[0017] S4. If the rock range is small, high-frequency vibration crushing is directly performed through the vibrating rod;

[0018] S5. During the drilling process, fine soil and gravel enter the gravel space. When the bored pile is drilled to a certain extent, the bored pile is lifted and taken out by the lifting mechanism, and then the oil cylinder is driven to separate the two foundation piles from each other through the connecting rod group, the bottom of the bored pile is opened, and the soil and gravel in the gravel space are discharged.

[0019] In the aforementioned bored pile driving equipment, during the bored pile drilling and stone breaking process, the water collecting tank sprays water to the working space and the arc groove through the water spray pipe and the nozzle, so as to reduce the dust during the drilling and unloading process and dissipate the heat of the working space to a certain extent.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The lifting mechanism and the rotating mechanism provided in the present invention drive the bored pile to rotate to break the soil and drill holes. When encountering isolated rock landforms, the hammering oil cylinder is first used to drive the gravity hammer to hammer the gravity block downward, so that the gravity block extends out of the bored pile to repeatedly hit the rock first, and the large rock is broken into small rocks; after the gravity block breaks the large isolated rock, the lifting oil cylinder drives the vibration rod to extend out of the vibration rod hole, and the rotating mechanism rotates the bored pile to adjust the position of the vibration rod, so that the vibration rod corresponds to the small rock. The vibration rod is driven by the vibration chamber to vibrate up and down at a high frequency, and the small rock is broken into fine stones, so as to achieve the goal of quickly breaking the rock layer, greatly shorten the construction period, improve the construction efficiency, can adapt to the complex geological conditions in areas with many isolated rocks, and ensure the stability of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of bored piles;

[0024] Figure 3 It is a schematic diagram of the bottom structure of bored piles;

[0025] Figure 4 It is a structural diagram of the eccentric wheel.

[0026] Figure 5 It is a schematic diagram of the structure of the vibration chamber.

[0027] Figure 6 It is a schematic diagram of the connection structure between the driving cylinder and the bored pile.

[0028] The markings in the accompanying drawings are: 1, main body; 2, frame; 21, drill rod; 3, bored pile; 31, hammer hole; 32, vibrating rod hole; 33, gravity block; 331, impact block; 34, gravity hammer; 35, hammer cylinder; 36, vibrating rod; 37, vibration chamber; 371, mounting seat; 38, lifting cylinder; 381, guide rod; 382, ​​limit block; 383, guide sleeve; 384, buffer spring; 41, drive shaft; 42, eccentric wheel; 43, transmission gear; 44, transmission wheel; 45, driving wheel; 46, transmission belt; 47, long screw; 48, shock-absorbing spring; 51, arc groove; 52, cutting gear; 53, ground penetrating radar; 54, power seat; 55, foundation pile; 56, isolation plate; 57, drive cylinder; 58, connecting rod group; 61, water collecting tank; 62, water spray pipe. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the embodiments, but they are not intended to limit the present invention.

[0030] Example:

[0031] like Figure 1-Figure 6 As shown, a bored pile driving device for areas with many boulders includes a main body 1, a frame 2 is provided on the main body 1, a drill rod 21, a lifting mechanism for driving the drill rod 21 to rise and fall, and a rotating mechanism for driving the drill rod 21 to rotate are provided on the frame 2, and the above mechanisms are all prior art and will not be described in detail here. A bored pile 3 is provided at the bottom end of the drill rod 21, a hammering hole 31 and a plurality of vibrating rod holes 32 surrounding the hammering hole 31 are provided at the bottom of the bored pile 3, a gravity block 33 corresponding to the hammering hole 31 and a vibrating rod 36 corresponding to the vibrating rod hole 32 are provided inside the bored pile 3, a gravity hammer 34 driven by a hammering oil cylinder 35 is provided above the gravity block 33, a vibration chamber 37 that vibrates up and down is fixedly connected to the upper end of the vibrating rod 36, and the vibration chamber 37 is connected to a lifting oil cylinder 38 via a mounting seat 371.

[0032] The lifting mechanism and the rotating mechanism drive the bored pile 3 to rotate to break the soil and drill holes. When encountering isolated rock landforms, the hammering cylinder 35 first drives the gravity hammer 34 to hammer the gravity block 33 downward, so that the gravity block 33 extends out of the bored pile 3 to repeatedly hit the rock first, and the large rock is broken into small pieces of rock; after the gravity block 33 breaks the large isolated rock, the lifting cylinder 38 drives the vibration rod 36 to extend out of the vibration rod hole 32, and at the same time, the rotating mechanism rotates the bored pile 3 to adjust the position of the vibration rod 36, so that the vibration rod 36 corresponds to the small rock. The vibration rod 36 is driven by the vibration chamber 37 to vibrate up and down at a high frequency, and the small rock is broken into fine stones, so as to achieve the goal of quickly breaking the rock layer, greatly shorten the construction period, improve the construction efficiency, and can adapt to the complex geological conditions in areas with many isolated rocks, and ensure the stability of construction.

[0033] The small stones produce fluid-like motion under the high-frequency up and down vibration of the vibration rod 36, reducing the friction between the small stones and the bored pile 3, making it easier for the bored pile 3 to penetrate deeply into the underground and rotate and drill, and also facilitating the subsequent hole cleaning operation.

[0034] A guide rod 381 is provided inside the bored pile 3, a stopper 382 is provided at the bottom of the guide rod 381, the weight block 33 moves up and down along the guide rod 381 through the guide sleeve 383, and a buffer spring 384 is provided outside the guide rod 381 between the guide sleeve 383 and the stopper 382. The mounting seat 371 is also slidably connected to the guide rod 381 through the guide sleeve 383. The guide rod 381 allows the weight block 33 and the vibration rod 36 to move in a vertical direction to avoid displacement due to the influence of the hard ground.

[0035] A pair of parallel drive shafts 41 are provided inside the vibration chamber 37, and eccentric wheels 42 are provided on both drive shafts 41. The eccentric directions of the eccentric wheels 42 on the two drive shafts 41 are relatively distributed, and mutually meshing transmission gears 43 are provided at one end of the two drive shafts 41, and a transmission wheel 44 is provided at the other end of one of the drive shafts 41. A drive motor is also provided inside the vibration chamber 37, and a driving wheel 45 is provided on the output shaft of the drive motor. The driving wheel 45 and the transmission wheel 44 are driven by a transmission belt 46. The eccentric wheel 42 is provided on the drive shaft 41, and when the drive shaft 41 rotates, irregular centrifugal force is generated due to the offset center of gravity of the eccentric wheel 42. In this embodiment, two parallel drive shafts 41 are used, and the eccentric directions of the eccentric wheels 42 on the two drive shafts 41 are opposite. During operation, the drive motor drives the active wheel 45 to rotate, and the active wheel 45 drives the transmission wheel 44 and the drive shaft 41 connected to the transmission wheel 44 to rotate via the transmission belt 46. The two drive shafts 41 are engaged with the transmission gear 43, so that the two drive shafts 41 and the eccentric wheel 42 rotate in relative directions. The lateral vibrations caused by the eccentric wheel 42 offset each other, and the longitudinal vibration is retained, so that the vibration chamber 37 vibrates periodically up and down, driving the vibration rod 36 to vibrate periodically up and down at a high frequency.

[0036] The vibration chamber 37 is provided with a long screw 47 connected to the mounting seat 371, and a shock absorbing spring 48 is sleeved on the long screw 47, one end of the shock absorbing spring 48 is connected to the vibration chamber 37, and the other end of the shock absorbing spring 48 is connected to the mounting seat 371. The long screw 47 and the shock absorbing spring 48 cooperate so that the vibration of the vibration chamber 37 will not affect the mounting seat 371, the lifting cylinder 38 and the bored pile 3.

[0037] A plurality of annularly distributed impact blocks 331 are provided at the bottom of the gravity block 33 ; an arc groove 51 is provided between the bored pile 3 and the gravity block 33 ; a plurality of annularly distributed cutting gears 52 and a ground penetrating radar 53 are provided at the bottom of the bored pile 3 .

[0038] The rotating mechanism drives the bored pile 3 to cut and drill the foundation using the cutting gear 52 during the rotation process. At the same time, the ground penetrating radar 53 is used to detect whether there are rocks underground and to determine the range of the rocks. If rocks are detected and the range is large, the gravity block 33 is used to destroy the large rocks. If rocks are detected and the range is small, the vibration rod 36 is used to crush them. The gravity block 33 crushes the rocks as a whole, and the impact block 331 concentrates the force to break the rocks from local points. Through the combination of local and overall crushing methods, it is easier to crush large rocks; the crushed rocks enter the bored pile 3 through the arc groove 51 under the action of pressure, and a certain amount of hole cleaning is performed to reduce the obstacles to the subsequent drilling of the bored pile 3.

[0039] The cutting gears 52 are respectively located at the inner edge, the middle and the outer edge of the bored pile 3. The cutting direction of the cutting gear 52 located at the inner edge of the bored pile 3 is inward, the cutting direction of the cutting gear 52 located at the middle of the bored pile 3 is downward, and the cutting direction of the cutting gear 52 located at the outer edge of the bored pile 3 is outward. During the rotation of the bored pile 3, the cutting range is wider by using the cutting gears 52 with different cutting directions, and the soil and rock blocks are cut from different angles, thereby improving the crushing degree and crushing speed of the soil and rock blocks.

[0040] The bored pile 3 includes a power seat 54 and a pair of symmetrically distributed foundation piles 55. The power seat 54 is connected to the drill rod 21. The top of the foundation pile 55 is rotatably connected to the power seat 54. The two foundation piles 55 are rotatably connected to each other to form a working space surrounding the gravity block 33 and the vibration rod 36. An isolation plate 56 is provided in the working space. The isolation plate 56 and the bottom of the foundation pile 55 form a sand and gravel space connected to the outside world; a pair of driving cylinders 57 are provided on the power seat 54, and the driving cylinders 57 drive the bottom of the foundation pile 55 to open or close respectively through a connecting rod group 58.

[0041] The broken stones and soil produced by drilling will enter the gravel space from the arc groove 51, and the working space and the gravel space are isolated by the isolation plate 56 to prevent the soil and gravel from damaging and polluting the power mechanism in the working space; when the bored pile 3 is drilled to a certain extent, the bored pile 3 is lifted and taken out by the lifting mechanism, and then the oil cylinder 57 is driven to separate the two foundation piles 55 from each other through the connecting rod group 58, so that the bottom of the bored pile 3 is opened, and the soil and gravel in the gravel space are discharged.

[0042] A water collecting box 61 is provided on the drill rod 21 above the bored pile 3, and a water spraying pipe 62 is provided on the water collecting box 61 to extend into the sand and gravel space of the bored pile 3, and a nozzle is provided on the water spraying pipe 62. During the drilling and stone breaking process, the water collecting box 61 sprays water to the working space and the arc groove 51 through the water spraying pipe 62 and the nozzle, so as to reduce dust during the drilling and unloading process and dissipate heat to the working space to a certain extent.

[0043] The construction method of the bored pile driving equipment comprises the following steps:

[0044] S1, the main body 1 moves the bored pile 3 to a suitable position, the lifting mechanism adjusts the height of the bored pile 3, and the rotating mechanism drives the bored pile 3 to rotate to break the ground and drill holes; the bored pile 3 uses the cutting gear 52 with different cutting directions to cut and drill holes at different angles on the foundation to improve the drilling and breaking ability;

[0045] S2. When encountering isolated rock landforms, if the rock range is large, first drive the gravity hammer 34 to hammer the gravity block 33 downward through the hammering cylinder 35, so that the gravity block 33 extends out of the bored pile 3 to repeatedly hit the rock first, breaking the large rock into small pieces of rock;

[0046] S3. After the gravity block 33 breaks the large rocks, the lifting cylinder 38 drives the vibration rod 36 to extend out of the vibration rod hole 32. At the same time, the rotating mechanism rotates the bored pile 3 to adjust the position of the vibration rod 36 so that the vibration rod 36 corresponds to the small rocks. The vibration rod 36 is driven by the vibration chamber 37 to vibrate up and down at a high frequency, breaking the small rocks into fine stones.

[0047] S4. If the rock range is small, high-frequency vibration crushing is directly performed through the vibration rod 36;

[0048] S5. During the drilling process, fine soil and gravel enter the gravel space. When the bored pile 3 is bored to a certain extent, the bored pile 3 is lifted and taken out by the lifting mechanism, and then the oil cylinder 57 is driven to separate the two foundation piles 55 from each other through the connecting rod group 58, and the bottom of the bored pile 3 is opened to discharge the soil and gravel in the gravel space.

[0049] During the drilling and breaking process of the bored pile 3, the water collecting tank 61 sprays water to the working space and the arc groove 51 through the water spray pipe 62 and the nozzle, so as to reduce dust during the drilling and unloading process and dissipate heat to a certain extent for the power mechanism in the working space.

Claims

1. A bored pile driving device for areas with many boulders, comprising a main body (1), a frame (2) is provided on the main body (1), a drill rod (21), a lifting mechanism for driving the drill rod (21) to rise and fall, and a rotating mechanism for driving the drill rod (21) to rotate are provided on the frame (2), a bored pile (3) is provided at the bottom end of the drill rod (21), and the device is characterized in that: The bottom of the bored pile (3) is provided with a hammering hole (31) and a plurality of vibrating rod holes (32) surrounding the hammering hole (31); a gravity block (33) corresponding to the hammering hole (31) and a vibrating rod (36) corresponding to the vibrating rod hole (32) are provided inside the bored pile (3); a gravity hammer (34) driven by a hammering oil cylinder (35) is provided above the gravity block (33); a vibrating chamber (37) that vibrates up and down is fixedly connected to the upper end of the vibrating rod (36); and the vibrating chamber (37) is connected to a lifting oil cylinder (38) via a mounting seat (371).

2. The bored pile driving equipment for areas with many boulders according to claim 1 is characterized by: A guide rod (381) is provided inside the bored pile (3), a limit block (382) is provided at the bottom of the guide rod (381), the gravity block (33) moves up and down along the guide rod (381) through the guide sleeve (383), and a buffer spring (384) is provided outside the guide rod (381) between the guide sleeve (383) and the limit block (382).

3. The bored pile driving equipment for areas with many boulders according to claim 1 is characterized by: A pair of parallel drive shafts (41) are provided inside the vibration chamber (37), and eccentric wheels (42) are provided on both drive shafts (41). The eccentric directions of the eccentric wheels (42) on the two drive shafts (41) are relatively distributed. One end of the two drive shafts (41) is provided with mutually meshing transmission gears (43), and the other end of one of the drive shafts (41) is provided with a transmission wheel (44). A drive motor is also provided inside the vibration chamber (37), and a driving wheel (45) is provided on the output shaft of the drive motor. The driving wheel (45) and the transmission wheel (44) are driven via a transmission belt (46).

4. The bored pile driving equipment for areas with many boulders according to claim 1 is characterized by: The vibration chamber (37) is provided with a long screw rod (47) connected to the mounting seat (371), and a shock absorbing spring (48) is sleeved on the long screw rod (47), one end of the shock absorbing spring (48) is connected to the vibration chamber (37), and the other end of the shock absorbing spring (48) is connected to the mounting seat (371).

5. The bored pile driving equipment for areas with many boulders according to claim 1 is characterized by: The bottom of the gravity block (33) is provided with a plurality of impact blocks (331) distributed in an annular manner; an arc groove (51) is provided between the bored pile (3) and the gravity block (33); and the bottom of the bored pile (3) is provided with a plurality of cutting gears (52) and a ground penetrating radar (53) distributed in an annular manner.

6. The bored pile driving equipment for areas with many boulders according to claim 5 is characterized by: The cutting gears (52) are respectively located at the inner edge, the middle and the outer edge of the bored pile (3); the cutting direction of the cutting gear (52) located at the inner edge of the bored pile (3) is inward, the cutting direction of the cutting gear (52) located at the middle of the bored pile (3) is downward, and the cutting direction of the cutting gear (52) located at the outer edge of the bored pile (3) is outward.

7. The bored pile driving equipment for areas with many boulders according to claim 1 is characterized by: The bored pile (3) comprises a power seat (54) and a pair of symmetrically distributed foundation piles (55); the power seat (54) is connected to the drill rod (21); the top of the foundation pile (55) is rotatably connected to the power seat (54); the two foundation piles (55) are rotatably spliced ​​to form a working space surrounding the gravity block (33) and the vibration rod (36); an isolation plate (56) is provided in the working space; the isolation plate (56) and the bottom of the foundation pile (55) form a sandstone space connected to the outside; the power seat (54) is provided with a pair of driving cylinders (57); the driving cylinders (57) respectively drive the bottom of the foundation pile (55) to open or close through a connecting rod group (58).

8. The bored pile driving equipment for areas with many boulders according to claim 7 is characterized by: A water collecting box (61) is provided on the drill rod (21) above the bored pile (3), and a water spraying pipe (62) extending into the sand and gravel space of the bored pile (3) is provided on the water collecting box (61), and a spray head is provided on the water spraying pipe (62).

9. The construction method of the bored pile driving equipment according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, the main body (1) moves the bored pile (3) to a suitable position, the lifting mechanism adjusts the height of the bored pile (3), and the rotating mechanism drives the bored pile (3) to rotate to break the soil and drill holes; the bored pile (3) uses cutting gears (52) with different cutting directions to cut and drill holes at different angles on the foundation, thereby improving the drilling and breaking soil capability; S2. When encountering isolated rock landforms, if the rock range is large, first drive the gravity hammer (34) to hammer the gravity block (33) downward by hammering the oil cylinder (35), so that the gravity block (33) extends out of the bored pile (3) to repeatedly hit the rock, breaking the large rock into small pieces of rock; S3, when the gravity block (33) breaks the large rocks, the lifting cylinder (38) drives the vibration rod (36) to extend out of the vibration rod hole (32), and at the same time, the rotating mechanism rotates the bored pile (3) to adjust the position of the vibration rod (36), so that the vibration rod (36) corresponds to the small rocks. The vibration rod (36) is driven by the vibration chamber (37) to vibrate up and down at a high frequency, breaking the small rocks into fine stones; S4. If the rock is small, high-frequency vibration crushing is directly performed through the vibration rod (36); S5. During the drilling process, fine soil and gravel enter the gravel space. When the bored pile (3) is bored to a certain extent, the bored pile (3) is lifted and taken out by the lifting mechanism, and then the oil cylinder (57) is driven to separate the two foundation piles (55) from each other through the connecting rod group (58), and the bottom of the bored pile (3) is opened to discharge the soil and gravel in the gravel space.

10. The construction method of the bored pile driving equipment according to claim 9, characterized in that: During the drilling and breaking process of the bored pile (3), the water collecting tank (61) sprays water to the working space and the arc groove (51) through the water spray pipe (62) and the spray head, thereby reducing dust during the drilling and unloading process and dissipating heat to a certain extent in the working space.

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