CN216615829U

CN216615829U - Movable pile driver for intertidal zone box

Info

Publication number: CN216615829U
Application number: CN202123034637.7U
Authority: CN
Inventors: 江松; 李�浩; 武春辉; 陈健
Original assignee: Cangzhou Guangshun Foundation Engineering Co ltd; PowerChina Hebei Electric Power Engineering Co Ltd
Current assignee: Cangzhou Guangshun Foundation Engineering Co ltd; PowerChina Hebei Electric Power Engineering Co Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-05-27
Anticipated expiration: 2031-12-03

Abstract

The utility model discloses a movable pile driver for intertidal belt box bodies, which belongs to the technical field of construction machinery and comprises a box body, a pile hammer, a pile frame, a hoisting system, a lofting positioning disc, side fine-adjustment mechanical arms, positioning anchor rods, a driving device, a Beidou positioning system and a control system, wherein the front part of the box body is provided with a pile inlet; and the control system controls the pile driver to automatically and continuously operate. The utility model can meet the requirements of insufficient water level, mudflat piling operation and equipment movement, realize the extension of the construction time of the intertidal zone pile foundation and reduce the construction cost.

Description

Movable pile driver for intertidal zone box

Technical Field

The utility model relates to the technical field of building construction machinery, in particular to a movable pile driver for an intertidal zone box body, which is used for constructing a precast pile in an intertidal zone of a muddy mudflat.

Background

Construction background: pile foundation engineering for devices acting in intertidal zone (intertidal zone, refers to the coast between the average highest tide level and the lowest tide level, i.e. the range from the place submerged when seawater rises to the highest level to the place exposed when the tide falls to the lowest level). Intertidal zone characteristics: in an intertidal zone, the mudflat is exposed for about 6 hours each day, and the tidal waters with different depths exist for about 6 hours, so that the precast pile (steel pile) pile foundation construction is performed in the area, and the equipment type selection is difficult; the adoption of the large-scale offshore pile driving ship has the disadvantages of limited draft, no water and incapability of construction when the depth of water is insufficient, slow construction speed and high construction cost; due to the influence of tide and sea wave, the small pile driving ship and the excavator vibration hammer can only construct the PHC precast pile (steel pile) with the thickness of 400mm or less, and the PHC precast pile (steel pile) with the thickness of more than 400mm can not be constructed, and the ship body is difficult to control stably in the presence of water and can not be constructed in the absence of water.

The existing equipment has the defects in intertidal zone construction:

1. marine pile driving vessel: the water depth must meet the conditions, the construction speed is slow, the construction cost is high, and almost no operation time exists in the intertidal zone.

2. Small-size pile driving boat: in recent years, fishing light complementary projects are more, the pile foundation of the photovoltaic support is basically 300mm and 400mm PHC precast tubular pile, the small-sized pile driving boat is produced at the same time, the fishing light complementary projects are mostly positioned in a culture pond and a static water area (only influenced by wind power) on the surface of a shallow water lake, and the small-sized pile driving boat is always in a floating state and is convenient to move. When the pile driving device is constructed in an intertidal zone, the small pile driving ship cannot overcome the movement in a no-tide beach state, and the operation time is shortened; the positioning device of the small pile driving barge is simple and cannot effectively resist surge and stabilize the pile driving barge; the small pile driver is simple in structure, and the PHC precast tubular pile with the thickness of 500mm or more cannot be constructed.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide the intertidal zone box body movable pile driver, which can meet the requirements of insufficient water level, mudflat pile driving operation and equipment movement, prolong the construction time of an intertidal zone pile foundation and reduce the construction cost.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

a movable pile driver with a intertidal belt box body comprises a box body, a pile hammer, a pile frame, a winding system, a lofting positioning disc, side fine-adjustment mechanical arms, positioning anchor rods, a driving device, a Beidou positioning system and a control system, wherein a pile inlet is formed in the front of the box body; the control system controls the pile driver to automatically and continuously work.

The technical scheme of the utility model is further improved as follows: the driving device at least comprises a spiral driver arranged at the bottom of the box body, a driving mechanical arm arranged at the tail part of the box body and a traction device; the driving modes of the driving device comprise power driving for driving the mechanical arm, traction driving for the traction device and screw driving for the screw driver, and the three driving modes can be used independently or in combination; the traction device realizes the longitudinal movement of the box body on the mudflat in a traction mode; the power of the driving mechanical arm assists the box body to move longitudinally, and after the box body moves longitudinally, the driving mechanical arm acts on the bottom mud flat for anchoring to assist the stability of the box body; the spiral driver is powered by the generator, so that the box body can move quickly and remotely in a water environment and a mud flat state.

The technical scheme of the utility model is further improved as follows: the traction device comprises a fixed frame arranged in the middle of the tail end of the box body, a positioning anchor point arranged on the bank at a distance from the tail end of the box body, and a traction rope connecting the fixed frame and the positioning anchor point; the positioning anchor point is coaxial with the central point of the pile position.

The technical scheme of the utility model is further improved as follows: the screw drivers are arranged in four groups.

The technical scheme of the utility model is further improved as follows: the positioning anchor rods comprise first positioning anchor rods arranged on one side of the rear part of the box body and second positioning anchor rods arranged on the other side of the front part of the box body; the first positioning anchor rod and the second positioning anchor rod are matched with the driving mechanical arm and the side fine-tuning mechanical arm to stabilize the box body; the first positioning anchor rod and the second positioning anchor rod realize counter force pressing and lifting through a pulley block and a second hoisting system which are independently matched.

The technical scheme of the utility model is further improved as follows: the lofting positioning disc comprises a first positioning disc, a second positioning disc, an extension platform and a slide rail, wherein the extension platform is arranged on the upper plane of the box body on one side of the pile feeding port, and the slide rail is arranged on the inner side of the extension platform; the first positioning disc and the second positioning disc can slide along the sliding rail at the pile inlet; the lofting positioning disc controls the distance between the first positioning disc and the second positioning disc by means of the constructed PHC pile, positioning of the PHC pile to be constructed is carried out, the distance between the two points of the constructed PHC pile and the PHC pile to be constructed is locked, deviation angle movement is completed by means of the side fine-adjustment mechanical arm, and quick and accurate positioning is achieved.

The technical scheme of the utility model is further improved as follows: the pile frame comprises a main rod arranged vertical to the box body, 2 support rods with hydraulic oil cylinders arranged at the lower parts and a suspension rope for connecting the pile hammer with the hoisting system; hydraulic cylinder can adjust the length of bracing piece to adjust the straightness that hangs down of mobile jib and box.

The technical scheme of the utility model is further improved as follows: side fine setting arm and the coaxial setting of mobile jib, during the laying-out positioning disk laying-out, the lateral shifting of side fine setting arm regulating box to satisfy the laying-out requirement, the back is accomplished in the laying-out, and side fine setting arm is used in the bottom mud flat, the stability of supplementary box.

The technical scheme of the utility model is further improved as follows: the box body structure adopts a through long structural beam, and the surface of the box body is welded by steel plates with the thickness of more than or equal to 10 mm; the height of the box body is more than 1 m; the opening size of the pile inlet is +100mm of the diameter of the construction pile.

Due to the adoption of the technical scheme, the utility model has the technical progress that:

1. according to the utility model, through the arrangement of the integral structure, the integral structural force of the pile driver is changed, the construction of the medium-large PHC precast tubular pile can be met, the all-weather construction under the working conditions of an intertidal zone, no water mud flat and different water level depths can be met, the extension of the construction time of the intertidal zone pile foundation is effectively realized, and the construction cost is reduced.

2. The box body structure, the positioning anchor rod, the driving mechanical arm and the side fine adjustment mechanical arm are arranged, so that the requirements of tidal water piling operation and equipment movement can be met.

3. The utility model can meet the requirements of insufficient water level, mudflat piling operation and equipment movement by arranging the box body structure, the driving mechanical arm, the side fine-tuning mechanical arm and the positioning traction device.

4. The lofting positioning device provided by the utility model can realize rapid and accurate positioning on water, and effectively shortens the construction time of a single pile.

5. The side edge fine-tuning mechanical arm and the driving mechanical arm are arranged, so that the stability of the pile driver is further improved, the pile driver is more stable than a single positioning anchor rod, and the influence of wind waves and tides on the construction stability of the pile driver is effectively reduced.

6. The spiral driver arranged in the utility model can realize the movement of the pile driver in the water environment and the mud flat state, greatly improve the maneuvering flexibility of the intertidal-zone box movable pile driver, enable the pile driver to move more quickly and stably, and effectively improve the working efficiency of pile driving operation construction.

7. The construction method is simple and convenient, and effectively improves the working efficiency of intertidal zone piling operation.

Drawings

FIG. 1 is a first general structural diagram of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a third schematic view of the overall structure of the present invention;

FIG. 4 is a schematic view of the structure of the case of the present invention;

FIG. 5 is a schematic view of the hoist system of the present invention;

FIG. 6 is a schematic view of the pile hammer of the present invention;

FIG. 7 is a schematic view of the pile frame structure of the present invention;

FIG. 8 is a schematic view of a lofting spud in the present invention;

FIG. 9 is a schematic view of the lofting positioning tray of the present invention;

FIG. 10 is a schematic view of a side trimming robot of the present invention;

FIG. 11 is a schematic view of a drive robot according to the present invention;

fig. 12 is a schematic view of the construction of a positioning anchor according to the present invention;

FIG. 13 is a schematic view of the construction of the draft gear of the present invention;

FIG. 14 is a schematic view of the screw driver structure of the present invention;

the construction method comprises the following steps of 1, constructing a PHC pile, 2, constructing a PHC pile to be constructed, 3, a pile hammer, 4, a pile frame, 4-1, a main rod, 4-2, a support rod, 4-3, a suspension rope, 5, a first positioning anchor rod, 6, a traction device, 6-1, 6-2, a traction rope, 6-3, a positioning anchor point, 7, a driving mechanical arm, 8, a hoisting system, 9, a box body, 9-1, a pile feeding port, 9-2, a fence, 10, a side fine adjustment mechanical arm, 11, a second positioning anchor rod, 12, a lofting positioning disc, 12-1, a first positioning disc, 12-2, a second positioning disc, 12-3, an extending platform, 13 and a spiral driver.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings:

in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" … …, and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" … … are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" … … may explicitly or implicitly include at least one such feature.

As shown in fig. 1, 2 and 3, the intertidal belt box mobile pile driver comprises a box 9 with a pile inlet 9-1 at the front part, a pile hammer 3 for driving the pile, a pile frame 4 arranged on the box 9 for suspending the pile hammer 3, a hoisting system 8 arranged in the middle of the box 9 and providing power for the pile hammer 3, a lofting positioning disc 12 arranged at the pile inlet 9-1 and capable of realizing pile position positioning at different pile intervals, side fine-tuning mechanical arms 10 arranged on two sides of the box 9 for adjusting the box 9 to move transversely, positioning anchor rods arranged at opposite corners of the box 9 and capable of quickly positioning the box 9, a driving device capable of moving the box 9 longitudinally, a Beidou positioning system for accurately positioning the pile positions, and a control system; the control system controls the pile driver to automatically and continuously work.

Considering the characteristics of the intertidal zone, the intertidal zone box body movable pile driver is designed with three driving modes, namely driving mechanical arm 7 power driving, traction device 6 traction driving and spiral driver 13 spiral driving, the three driving modes can be used independently or in combination, and according to different working conditions, the corresponding driving mode or driving combination is determined through experiments to meet the requirement that equipment smoothly moves in the mudflat or seawater.

As shown in fig. 11, 13 and 14, the driving device includes, but is not limited to, a screw driver 13 installed at the bottom of the box 9, a driving robot arm 7 installed at one side of the rear portion of the box 9, and a traction device 6 installed at a middle position of the rear portion of the box 9; the driving modes of the driving device comprise power driving of the driving mechanical arm 7, traction driving of the traction device 6 and screw driving of the screw driver 13, and all the three driving modes can be used independently or in combination; the traction device 6 realizes the longitudinal movement of the box body 9 on the mudflat in a traction mode; the power driving the mechanical arm 7 assists the box body 9 to move longitudinally, and after the box body 9 finishes moving longitudinally, the mechanical arm 7 is driven to act on the bottom mud flat for anchoring so as to assist the stability of the box body 9; the spiral driver 13 is powered by a generator, so that the box body 9 can move quickly and remotely in a water environment and a mud flat state.

As shown in fig. 13, the traction device 6 includes a fixing frame 6-1 arranged at the middle position of the tail end of the box 9, a positioning anchor point 6-3 arranged at a distance from the tail of the box 9, and a traction rope 6-2 connecting the fixing frame 6-1 and the positioning anchor point 6-3; the positioning anchor point 6-3 is coaxial with the center point of the pile position. Specifically, considering that the driving mechanical arm 7 cannot meet the requirement that the box body 9 can not move on the mudflat, the tail of the box body is provided with a positioning anchor point 6-3, the positioning anchor point 6-3 is coaxial with the central point of the pile (the PHC pile 2 to be constructed), the box body 9 is additionally provided with a traction device 6, the mudflat can longitudinally move in a traction mode, and the mechanical arm 7 is used for assisting in finely adjusting the anchoring of the box body 9.

Specifically, four groups of spiral drivers 13 are installed at the bottom of the box body 9, a 200kw generator provides power for the spiral drivers 13, so that the box body 9 can move in a water environment and a mud flat state.

As shown in fig. 12, the positioning anchor comprises a first positioning anchor 5 arranged at one side of the rear part of the box body 9 and a second positioning anchor 11 arranged at the other side of the front part of the box body 9; the first positioning anchor rod 5 and the second positioning anchor rod 11 are matched with the driving mechanical arm 7 and the side fine-tuning mechanical arm 10 to stabilize the box body 9; the first positioning anchor rod 5 and the second positioning anchor rod 11 realize counter force pressing and lifting through a pulley block and a second hoisting system which are independently matched, and operation difficulty is reduced.

Specifically, the box 9 diagonal angle sets up the location stock, and the stock can realize the quick location of box 9, and the firm box 9 of arm (drive

arm

7 and 2 side fine tuning arms 10) cooperation satisfies the steady performance of construction requirement.

As shown in fig. 8 and 9, the lofting positioning disc 12 comprises a first positioning disc 12-1, a second positioning disc 12-2, an extension platform 12-3 installed on the upper plane of the box body 9 on one side of the pile inlet 9-1, and a slide rail arranged on the inner side of the extension platform 12-3; the first positioning disc 12-1 and the second positioning disc 12-2 can slide along a slide rail at the pile feeding port 9-1; the lofting positioning disc 12 controls the distance between the first positioning disc 12-1 and the second positioning disc 12-2 by means of the constructed PHC pile 1 to position the PHC pile 2 to be constructed, locks the distance between the two points of the constructed PHC pile 1 (formed by connecting the first pile and the second pile) and the PHC pile 2 to be constructed, and completes deviation angle movement by means of the side fine-adjustment mechanical arm 10 to realize quick and accurate positioning. Hole sites capable of being opened and closed are arranged in the middle positions of the first positioning disk 12-1 and the second positioning disk 12-2, the hole sites of the first positioning disk 12-1 are clamped into the constructed PHC pile 1, and the hole sites of the second positioning disk 12-2 are pile-descending holes.

Specifically, the lofting positioning disc 12 controls the distance between two pile position positioning discs (a first positioning disc 12-1 and a second positioning disc 12-2) by means of the constructed PHC pile 1, and positions the next pile position (the PHC pile 2 to be constructed) (the distance between two points is locked, and the side fine adjustment mechanical arm 10 is used for completing deviation angle movement, so that rapid and accurate positioning is realized). The slide rail realizes the pile position location of different pile spacing. The extension platform 12-3 meets the safety guarantee of equipment maintenance.

As shown in fig. 7, the pile frame 4 comprises a main rod 4-1 arranged perpendicular to the

box body

9, 2 support rods 4-2 provided with hydraulic cylinders at the lower parts thereof, and a suspension rope 4-3 passing through the first pulley block to connect the pile hammer 3 with the hoisting system 8; the hydraulic oil cylinder can adjust the length of the support rod 4-2 so as to adjust the verticality of the main rod 4-1 and the box body 9. Specifically, the structure of the main rod 4-1 refers to a land pile machine, and a hydraulic oil cylinder (arranged inside the lower portion of the plane of the box body 9) is additionally arranged on the lower portion of the supporting rod 4-2, so that the length adjustment of the supporting rod 4-2 can be met, and the purpose of adjusting the verticality of the main rod 4-1 is achieved. The pile frame 4 is arranged by referring to the structure of a ground pile.

As shown in fig. 10, the side fine-tuning mechanical arm 10 is arranged coaxially with the main rod 4-1, when the setting-out positioning disc 12 sets out a setting-out, the side fine-tuning mechanical arm 10 adjusts the lateral movement of the box body 9 to meet the setting-out requirement, and after the setting-out is completed, the side fine-tuning mechanical arm 10 acts on the bottom mudflat to assist the stability of the box body 9. Specifically, 1 side fine-tuning mechanical arm 10 is arranged on each of two sides of the

box body

9, 2 side fine-tuning mechanical arms 10 are arranged coaxially with the main rod 4-1, and the transverse movement of the box body 9 is adjusted to meet the lofting requirement. After lofting is completed, the 2 side fine-tuning mechanical arms 10 act on the bottom mudflat to assist the stability of the box body 9.

As shown in fig. 4, the structure of the box body 9 adopts a through long structural beam, and the design meets the requirements of upper device load and rear traction; the surface is welded by adopting a steel plate with the thickness of more than or equal to 10mm, and the welding meets the performance of the floating body; the height of the box body is more than 1m, and the length and the width are reasonable according to the upper load; the opening size of the pile inlet 9-1 is +100mm of the diameter of the construction pile, namely the opening size is +100mm according to the diameter of the construction pile; in order to facilitate construction and guarantee the safety of constructors, the periphery of the box body 9 is also provided with a fence 9-2.

As shown in fig. 5, the winch system 8 is arranged with reference to a land pile driver, and will not be described in detail herein.

As shown in fig. 6, the pile hammer 3 is selected according to the formation and design requirements.

A construction method of a movable pile driver for intertidal zones comprises the following steps:

step 1, equipment assembly: the pile driver is assembled on the bank side of the intertidal zone and pushed into the water when the tide rises after the assembly and debugging are finished;

step 2, pre-positioning the equipment: the pile driver reaches a preset position through the driving device, the mechanical arm of the driving mechanical arm 7 is dropped to carry out primary positioning, and when the traction device 6 is used for traction, a positioning anchor point 6-3 is arranged;

step 3, accurately positioning the pile position: a Beidou positioning system is adopted to accurately position the pile position, the side edge fine-tuning mechanical arm 10 and the driving device are used for moving in the transverse and longitudinal directions, after the center position of a pile hole is coincided with the lofting coordinate, the anchor rod is positioned, the box body 9 is fixed, the side edge fine-tuning mechanical arm 10 presses down the auxiliary box body 9 for positioning, and the stability of the box body 9 is ensured; the driving device comprises one or a combination of, but is not limited to, a driving mechanical arm 7, a traction device 6 and a screw drive 13;

step 4, pile hoisting: the pile transporting ship stops at the right front of the box body 9, and lifts the pile material through the auxiliary winch of the winch system 8 until the pile is placed into the pile placing hole;

and 5, piling: adjusting the verticality of the main rod 4-1 through the support rod 4-2, starting driving the pile hammer 3, driving the first section of pile by a cold hammer, adjusting the verticality at any time until the verticality does not change, formally driving, stopping driving when the upper end surface of the first section of pile is 0.5m higher than the upper plane of the box body 9, and lifting the second section of pile;

step 6, pile splicing: the second section of pile is lifted to the upper end face of the first section of pile, the end faces of the two sections of pile are parallel and level, and the pile bodies are connected;

and 7, piling: driving the pile hammer 3 to a preset elevation, and forming a constructed PHC pile 1 after the construction of the pile is finished;

step 8, shifting: opening a lower pile hole, slowly moving the box body 9 backwards through a driving device until the constructed PHC pile 1 is clamped into a first positioning disc 12-1 hole position of a lofting positioning disc 12, setting the distance between the hole position of the first positioning disc 12-1 and the lower pile hole of a second positioning disc 12-2 in advance according to a pile spacing set value on a drawing, locking the first positioning disc 12-1, and performing transverse fine adjustment through a side fine adjustment mechanical arm 10 until the lower pile hole center position of the second positioning disc 12-2 is coincided with a lofting coordinate, and finishing pile position positioning of the constructed PHC pile 2;

and (5) repeating the step 4 to the step 8, and controlling the pile driver to continuously construct by the control system.

In conclusion, the pile driver changes the integral structure force of the pile driver through the design of the integral structure of the pile driver, can meet the construction requirements of medium and large PHC precast tubular piles, can meet all-weather construction under the working conditions of intertidal zone areas, no water mudflats and different water level depths, effectively prolongs the construction time of the pile foundation in the intertidal zone, and reduces the construction cost.

Claims

1. The utility model provides a portable pile driver of intertidal zone box which characterized in that: the device comprises a box body (9) with a pile inlet (9-1) at the front part, a pile hammer (3) for piling, a pile frame (4) which is arranged on the box body (9) and is used for suspending the pile hammer (3), a hoisting system (8) which is arranged in the middle of the box body (9) and provides power for the pile hammer (3), a lofting positioning disc (12) which is arranged at the pile inlet (9-1) and can realize pile position positioning at different pile intervals, side fine-adjustment mechanical arms (10) which are arranged at two sides of the box body (9) and are used for adjusting the box body (9) to move transversely, positioning anchor rods which are arranged at opposite angles of the box body (9) and are used for quickly positioning the box body (9), a driving device which can make the box body (9) move longitudinally, a Beidou positioning system for accurately positioning the pile position and a control system; the control system controls the pile driver to automatically and continuously work.

2. The mobile pile driver of claim 1, wherein: the driving device at least comprises a spiral driver (13) arranged at the bottom of the box body (9), a driving mechanical arm (7) arranged at the tail part of the box body (9) and a traction device (6); the driving modes of the driving device comprise power driving of the driving mechanical arm (7), traction driving of the traction device (6) and spiral driving of the spiral driver (13), and all the three driving modes can be used independently or in combination; the traction device (6) realizes the longitudinal movement of the box body (9) on the beach in a traction mode; the power of the driving mechanical arm (7) assists the box body (9) to move longitudinally, and after the box body (9) moves longitudinally, the driving mechanical arm (7) acts on the bottom mud flat for anchoring to assist the stability of the box body (9); the spiral driver (13) is powered by a generator, so that the box body (9) can move quickly and remotely in a water environment and a mud flat state.

3. The mobile pile driver for intertidal belt box of claim 2, wherein: the traction device (6) comprises a fixed frame (6-1) arranged in the middle of the tail end of the box body (9), a positioning anchor point (6-3) arranged on the bank at a distance from the tail of the box body (9) and a traction rope (6-2) connecting the fixed frame (6-1) and the positioning anchor point (6-3); the positioning anchor point (6-3) is coaxial with the center point of the pile position.

4. The mobile pile driver of claim 2, wherein: the screw drivers (13) are arranged in four groups.

5. The mobile pile driver of claim 2, wherein: the positioning anchor rods comprise first positioning anchor rods (5) arranged on one side of the rear part of the box body (9) and second positioning anchor rods (11) arranged on the other side of the front part of the box body (9); the first positioning anchor rod (5) and the second positioning anchor rod (11) are matched with the driving mechanical arm (7) and the side fine-tuning mechanical arm (10) to stabilize the box body (9); the first positioning anchor rod (5) and the second positioning anchor rod (11) are pressed and lifted through a pulley block and a second hoisting system which are independently matched with each other.

6. The mobile pile driver of claim 1, wherein: the lofting positioning disc (12) comprises a first positioning disc (12-1), a second positioning disc (12-2), an extension platform (12-3) arranged on the upper plane of the box body (9) on one side of the pile inlet (9-1) and a sliding rail arranged on the inner side of the extension platform (12-3); the first positioning disc (12-1) and the second positioning disc (12-2) can slide along a slide rail at the pile feeding port (9-1); the lofting positioning disc (12) controls the distance between the first positioning disc (12-1) and the second positioning disc (12-2) by means of the constructed PHC pile (1), positioning of the PHC pile (2) to be constructed is carried out, the distance between the two points of the constructed PHC pile (1) and the PHC pile (2) to be constructed is locked, deviation angle movement is completed by means of the side fine-tuning mechanical arm (10), and quick and accurate positioning is achieved.

7. The mobile pile driver of claim 1, wherein: the pile frame (4) comprises a main rod (4-1) arranged vertical to the box body (9), 2 support rods (4-2) with hydraulic oil cylinders arranged at the lower parts, and a suspension rope (4-3) for connecting the pile hammer (3) with the hoisting system (8); the hydraulic oil cylinder can adjust the length of the supporting rod (4-2) so as to adjust the verticality of the main rod (4-1) and the box body (9).

8. The mobile pile driver of claim 7, wherein: side fine setting arm (10) and mobile jib (4-1) coaxial setting, during laying-out positioning disk (12) laying-out, lateral shifting of box (9) is adjusted in side fine setting arm (10) to satisfy the laying-out requirement, after the laying-out is accomplished, side fine setting arm (10) is used in the bottom mud flat, assists the stability of box (9).

9. The mobile pile driver of claim 1, wherein: the structure of the box body (9) adopts a through long structural beam, and the surface of the box body is welded by a steel plate with the thickness of more than or equal to 10 mm; the height of the box body is more than 1 m; the opening size of the pile inlet (9-1) is +100mm of the diameter of the construction pile.