JP7164139B1 - Pile driving method and stationary machine - Google Patents

Abstract

[PROBLEMS] To provide a pile driving method that reduces work and improves work efficiency in driving piles into each of a plurality of positions. SOLUTION: In the pile driving method, the stationary machine is arranged on one side in the width direction of the traveling vehicle body of the construction machine and in a state in which the truck is movable along the longitudinal direction of the traveling vehicle body. The base frame of the stationary machine is pressed vertically downward by the front outrigger and the rear outrigger on the side where the stationary machine is positioned in the width direction. In the pile driving method, in a state where the base frame is pressed, excavation is performed sequentially at a plurality of positions using an auger while moving the truck between the front outrigger and the rear outrigger, and excavation is performed at each of the plurality of positions. A pile is inserted into the hole formed by using a construction machine. [Selection drawing] Fig. 7

Description

The present invention relates to a pile driving method and a stationary machine .

Patent Literature 1 discloses a pile driving method for driving a pile into the ground. In this pile driving method, a pile is driven into the ground using a pile driving machine, which is a construction machine, and a stationary press-in device, which is a stationary machine separate from the pile driving machine. In the operation of driving a pile into the ground, first, a pair of front outriggers of the pile driving machine each press the base frame of the stationary press-in device vertically downward. Then, while the base frame is pressed by the front outrigger, the auger attached to the leader of the pile driving machine is driven to excavate. Then, the stationary press-in device is driven while the base frame is pressed by the front outrigger and the pile is held by the leader of the pile driver and the stationary press-in device. Thereby, the pile is inserted into the hole formed in the ground by the excavation by the auger.

JP-A-57-197324

At a construction site or the like, piles are driven into the ground at each of a plurality of positions using, for example, the pile driving method of Patent Document 1 described above. In the work of driving piles into each of a plurality of positions, it is required to reduce labor in the work and improve work efficiency. Improve work efficiency, e.g., by allowing excavation and insertion of piles into excavated holes at multiple locations in close proximity to each other without moving the stationary machine is required.

The present invention has been made to solve the above-mentioned problems, and its object is to reduce labor in driving piles into each of a plurality of positions and improve work efficiency. is to provide Another object of the present invention is to provide a stationary machine for use in the pile driving method.

In order to achieve the above object, a pile driving method according to one aspect of the present invention is arranged on one side in the width direction of a traveling vehicle body of the construction machine with respect to the construction machine, and in the front-rear direction of the traveling vehicle body of the construction machine. arranging the stationary machine in a state in which the carriage is movable along the width of the traveling vehicle body; and pressing the base frame vertically downward, and moving the truck between the front outrigger and the rear outrigger while the base frame is being pushed. sequentially excavating a plurality of locations using an auger; and inserting piles at each of the plurality of locations using the construction machine into holes formed by excavation by the auger. .

Advantageous Effects of Invention According to the present invention, it is possible to provide a pile driving method that reduces work and improves work efficiency in driving piles into each of a plurality of positions. Moreover, it is possible to provide a stationary machine used for the pile driving method.

FIG. 1 is a vertical top view of a construction machine and a stationary machine placed at predetermined positions in an example of work using the pile driving method according to the embodiment. FIG. 2 is a view of the state of FIG. 1 as viewed from the front side of the traveling vehicle body of the construction machine. FIG. 3 is a view of the state of FIG. 1 as viewed from one side in the width direction of the traveling vehicle body of the construction machine. FIG. 4 is an enlarged view of range A1 in FIG. FIG. 5 is a diagram of a state in which excavation is being performed by an auger of a stationary machine in an example of work using the pile driving method according to the embodiment, as viewed vertically from above. FIG. 6 is a view of the state of FIG. 5 viewed from the front side of the traveling vehicle body of the construction machine. FIG. 7 is a diagram of a state in which a pile is inserted into a hole formed in the ground in an example of work using the pile driving method according to the embodiment, as viewed from above. FIG. 8 is a view of the state of FIG. 7 viewed from the front side of the traveling vehicle body of the construction machine. FIG. 9 is a schematic diagram showing an example of a configuration for driving an auger of a stationary machine with hydraulic oil from a construction machine in the embodiment.

Hereinafter, embodiments will be described with reference to the drawings.

1 to 3 show a state in which a construction machine 1 and a stationary machine 2 are placed at predetermined positions in an example of work using the pile driving method according to the embodiment. In one example of FIGS. 1 to 3, a wheel crane is used as the construction machine 1, and a stationary excavator is used as the stationary machine 2. FIG. As shown in FIGS. 1 to 3, the construction machine 1 includes a traveling vehicle body 3 and a revolving body 5 that is connected to the traveling vehicle body 3 from the vertical upper side (arrow Z1 side). The construction machine 1 is moved by the running vehicle body 3 performing a running motion. The revolving body 5 can revolve with respect to the traveling vehicle body 3 about a revolving axis P that is parallel or substantially parallel to the vertical direction (directions indicated by arrows Z1 and Z2).

In the traveling vehicle body 3 of the construction machine 1, the fore-and-aft direction (the directions indicated by arrows X1 and X2) intersects (perpendicularly or substantially perpendicular to) the vertical direction, and intersects both the vertical direction and the fore-and-aft direction. A (orthogonal or substantially orthogonal) width direction (direction indicated by arrow Y1 and arrow Y2) is defined. 1 is a view seen from the vertical upper side, FIG. 2 is a view seen from the front side of the traveling vehicle body 3, and FIG. It is the figure seen from the direction side (arrow Y1 side). Further, in the revolving structure 5, a front-rear direction that intersects (perpendicularly or substantially perpendicular to) the vertical direction and a width direction that intersects (perpendicularly or substantially at right angles) with both the vertical direction and the front-rear direction are specified. be done. 1 to 3, the front side of the traveling vehicle body 3 (the arrow X1 side) coincides or substantially coincides with the front side of the revolving body 5, and the rear side of the traveling vehicle body 3 (the arrow X2 side) is the revolving body 5. coincides or substantially coincides with the rear side of the

A rear end portion of a boom 6 is connected to the revolving body 5 . The boom 6 extends longitudinally from the rear end to the front end. In addition, the boom 6 can be raised and lowered with respect to the revolving body 5 and can be revolved with respect to the traveling vehicle body 3 about the revolving axis P together with the revolving body 5 . A pair of front outriggers 7A, 7B and a pair of rear outriggers 8A, 8B are attached to the traveling vehicle body 3 . The front outriggers 7A, 7B are arranged on the front side of the traveling vehicle body 3 with respect to the pivot axis P, and the rear outriggers 8A, 8B are arranged on the rear side of the traveling vehicle body 3 with respect to the pivot axis P. 1, the front outrigger 7A and the rear outrigger 8A are arranged on the left side of the traveling vehicle body 3, and the front outrigger 7B and the rear outrigger 8A are arranged on the right side of the traveling vehicle body 3. Each of the front outriggers 7A, 7B and the rear outriggers 8A, 8B can extend outward in the width direction of the traveling vehicle body 3 and can be grounded on the ground.

The stationary machine 2 comprises a base frame 11 , a carriage 12 , a leader 13 and an auger 15 . In the stationary machine 2, which is a stationary excavator, the longitudinal direction (the directions indicated by arrows X3 and X4) intersecting (perpendicular or substantially perpendicular to) the vertical direction, and in both the vertical direction and the longitudinal direction A width direction (a direction indicated by arrows Y3 and Y4) that intersects (perpendicularly or substantially perpendicularly) is defined. In FIG. 2 the stationary machine 2 is shown viewed from one longitudinal side, and in FIG. 3 the stationary machine 2 is shown viewed from one lateral side. The base frame 11 includes a pair of rail portions 16A, 16B and a pair of cross portions 17A, 17B. The rail portions 16A and 16B are arranged apart from each other in the width direction of the stationary machine 2 . Each of the rail portions 16A and 16B extends along the longitudinal direction of the stationary machine 2, and the rail portions 16A and 16B extend parallel or substantially parallel to each other.

Each of the cross portions 17A and 17B extends along the width direction of the stationary machine 2 and spans between the rail portions 16A and 16B. In the rail portions 16A and 16B, ends on one side in the longitudinal direction are connected by a cross portion 17A, and ends on the opposite side to the cross portion 17A in the longitudinal direction are connected by a cross portion 17B. . The cross portions 17A and 17B are spaced apart from each other in the longitudinal direction of the stationary machine 2 and extend parallel or substantially parallel to each other. Since the rail portions 16A and 16B and the cross portions 17A and 17B are formed as described above, the base frame 11 has a rectangular shape or a substantially rectangular shape when viewed from the vertical direction. The rectangular shape or substantially rectangular shape formed by the base frame 11 has a longer dimension in the longitudinal direction than the dimension in the width direction. A space is formed in a region surrounded by the rail portions 16A and 16B and the cross portions 17A and 17B of the base frame 11. As shown in FIG.

In the base frame 11, the plate 18A is attached to the cross portion 17A, and the plate 18B is attached to the cross portion 17B. Each of the plates 18A, 18B projects longitudinally outwardly of the stationary machine 2 from the one to which the cross portions 17A, 17B are attached. Four jacks 20 are attached to the base frame 11 . 1 to 3, the connection portion between the rail portion 16A and the cross portion 17A, the connection portion between the rail portion 16B and the cross portion 17A, the connection portion between the rail portion 16B and the cross portion 17A, and the rail portion 16B A jack 20 is attached to each of the connection portions between the cross section 17B and the cross section 17B. That is, one jack 20 is attached to each of the four corners of the aforementioned rectangular shape or substantially rectangular shape formed by the base frame 11 . Each of the jacks 20 is vertically extendable. By grounding each of the jacks 20 on the ground, the base frame 11 is supported on the ground. Further, by adjusting the expansion/contraction state of each jack 20, the base frame 11 is adjusted horizontally or substantially horizontally.

The carriage 12 is attached to rail portions 16A and 16B so as to be movable with respect to the base frame 11 along the longitudinal direction of the stationary machine 2 . The carriage 12 is movable along the longitudinal direction in the range between the cross portions 17A and 17B. The carriage 12 includes a plate-shaped pedestal 21 . 1 to 3, the pedestal 21 has a quadrangular or substantially quadrangular shape when viewed from the vertical direction. The pedestal 21 is arranged in a state in which the plate thickness direction coincides or substantially coincides with the vertical direction.

FIG. 4 shows an enlarged view of range A1 in FIG. As shown in FIG. 4 and the like, in the carriage 12, wheels 22 with flanges are installed on the surface of the pedestal 21 facing vertically downward. Four wheels 22 are attached to the pedestal 21 , and one wheel 22 is attached to each of the four corners of the quadrangular or substantially quadrangular shape formed by the pedestal 21 . A groove 23 that opens outward in the width direction of the stationary machine 2 is formed in each of the rail portions 16A and 16B. In each of the rail portions 16A and 16B, the groove 23 is formed continuously in the longitudinal direction between the cross portions 17A and 17B. Of the four wheels 22 of the carriage 12, two on the side where the rail portion 16A is located engage with the grooves 23 of the rail portion 16A, and the remaining two wheels on the side where the rail portion 16B is located. One engages with the groove 23 of the rail portion 16B. Each of the wheels 22 is engaged with one corresponding groove 23 of the rail portions 16A, 16B so as to be movable along the longitudinal direction of the stationary machine 2. As shown in FIG. Therefore, the carriage 12 can move along the longitudinal direction with respect to the base frame 11 .

As shown in FIG. 1 and the like, the stationary machine 2 is provided with a carriage power source 25 . The truck power source 25 generates power to move the truck 12 and transmits the generated power to the truck 12 . 1 to 3, the carriage power source 25 is arranged between the rail portions 16A and 16B in the width direction. In one example, truck power source 25 comprises a hydraulic cylinder. The carriage is moved by extending or contracting the hydraulic cylinder with hydraulic oil. In another example, the truck power source 25 includes a hydraulic motor, a winch and a chain, and hydraulic fluid drives the hydraulic motor to move the chain. The carriage 12 is moved by the movement of the chain. The configuration of the carriage power source 25 is not limited to the above-described example as long as it transmits the power for moving the carriage 12 to the carriage 12 .

Further, in the carriage 12, brackets 26A, 26B, 27A, and 27B are formed on the surface of the pedestal 21 facing vertically upward. The brackets 26A and 26B are arranged apart from the brackets 27A and 27B in the width direction of the stationary machine 2 on the side where the rail portion 16A is located. Also, the brackets 26A, 26B are spaced apart from each other in the longitudinal direction of the stationary machine 2 and the brackets 27A, 27B are spaced apart from each other in the longitudinal direction of the stationary machine 2 . Each of the brackets 26A, 26B, 27A, 27B is formed at a corresponding one of the four corners of the aforementioned quadrangular or substantially quadrangular shape formed by the pedestal 21. As shown in FIG.

The reader 13 is attached to the pedestal 21 of the carriage 12 by pin connection, for example. The reader 13 is attached to the pedestal 21 so as to extend vertically upward from the pedestal 21 straight or substantially straight. Reader 13 is connectable to each of brackets 26A, 26B and is attached to pedestal 21 while selected one of brackets 26A, 26B. 1 to 3, the reader 13 is attached to the bracket 26A.

Leader 13 is supported by two braces 31 . One end of each of the struts 31 is connected to the vertically upper end of the leader 13 . Also, the end of each of the columns 31 opposite to the side connected to the reader 13 can be connected to brackets 26A, 26B, 27A, and 27B. With the leader 13 attached to the bracket 26A, one of the two posts 31 connects between the bracket 26B and the vertical upper end of the leader 13, and the other of the two posts 31 connects between the bracket 27A and the leader 13. between the vertical upper edge of With the leader 13 attached to the bracket 26B, one of the two posts 31 connects between the bracket 26A and the vertical upper end of the leader 13, and the other of the two posts 31 connects between the bracket 27B and the leader 13. between the vertical upper edge of Therefore, even when the reader 13 is attached to either bracket 26A or 26B, the two supports 31 are arranged in an L shape or a substantially L shape when viewed vertically from above.

An auger 15 is attached to the leader 13 . Therefore, the auger 15 is attached to the carriage 12 via the leader 13 . The auger 15 is attached to the leader 13 so as to protrude outward in the width direction of the stationary machine 2 with respect to the base frame 11 , the carriage 12 and the leader 13 . Also, the auger 15 is attached to the leader 13 so as to be movable along the vertical direction with respect to the leader 13 . 1 to 3, the leader 13 is attached to the bracket 26A, so the auger 15 is positioned at the position indicated by the solid line in FIG. When the reader 13 is attached to the bracket 26B, the auger 15 is positioned as indicated by the dashed line in FIG.

An auger power source 33 is also attached to the leader 13 along with the auger 15 . The auger power source 33 generates power to rotationally drive the auger 15 and transmits the generated power to the auger 15 . The power from the auger power source 33 drives the auger 15 to rotate, thereby enabling the auger 15 to excavate the ground. As auger 15 moves vertically relative to leader 13 , auger power source 33 moves vertically with auger 15 . Further, when the truck 12 moves along the longitudinal direction of the stationary machine 2 , the leader 13 , the auger 15 , etc. move together with the truck 12 along the longitudinal direction.

5 and 6 show a state in which excavation is being performed by the auger 15 in an example of work using the pile driving method according to the embodiment. FIG. 5 is a view viewed from the vertical upper side. FIG. 6 is a diagram of the construction machine 1 viewed from the front side of the traveling vehicle body 3 and the stationary machine 2 viewed from one side in the longitudinal direction. As shown in FIGS. 5 and 6, the auger 15 of the stationary machine 2 can excavate the ground in a region adjacent to the rail portion 16A on the outside in the width direction. Also, the auger 15 can excavate the ground in the region between the cross portions 17A and 17B in the longitudinal direction of the stationary machine 2 . Excavation by the auger 15 forms a hole in the ground.

Also, at a work site or the like, a pile serving as a core material is inserted into a hole formed in the ground by excavation by the auger 15 . That is, a pile is erected in a hole (vertical hole) in the ground. This drives the pile into the ground. 7 and 8 show a state in which a pile 35 is inserted into a hole formed in the ground in an example of work using the pile driving method according to the embodiment. FIG. 7 is a view seen from the vertical upper side. FIG. 8 is a diagram of the construction machine 1 viewed from the front side of the traveling vehicle body 3 and the stationary machine 2 viewed from one side in the longitudinal direction.

As shown in FIGS. 7 and 8, a winch 36 is attached to the revolving body 5 of the construction machine 1. As shown in FIGS. During work using the construction machine, the rope 37 let out from the winch 36 extends forward of the boom 6 along the surface of the boom 6 on the rising side. A hook 38 is hung from the front end of the boom 6 via a rope 37 . The pile 35 is lifted by being hooked on a hook 38 suspended from the front end of the boom 6 . Then, the pile 35 lifted as described above using the boom 6 of the construction machine 1 is inserted into the hole formed by excavation.

Also, the stationary machine 2 can be lifted using the boom 6 of the construction machine 1 . For lifting the stationary machine 2, a hook different from the hook 38 is hung from the front end of the boom 6 via a rope. A hook used for lifting the stationary machine 2 can lift a load heavier than the hook 38 . In the stationary machine 2, for example, a portion for hooking a hook is formed at the vertically upper end of the leader 13. As shown in FIG. This allows the stationary machine 2 to be lifted using the boom 6 . The stationary machine 2 is lifted by the boom 6 so that the stationary machine 2 can be moved.

In the stationary machine 2, the hydraulic oil supplied from the construction machine 1 drives (rotates) the auger 15 and moves the carriage 12 along the longitudinal direction. Further, in the stationary machine 2 , each of the jacks 20 may be extended or contracted by hydraulic oil from the construction machine 1 . FIG. 9 shows an example of a configuration for driving the auger 15 with hydraulic oil from the construction machine 1. As shown in FIG. It should be noted that even when the movement of the carriage 12 and the extension or contraction of each of the jacks 20 are performed by the hydraulic oil from the construction machine 1, the construction machine 1 can also 2 is supplied with hydraulic oil.

In the example configuration of FIG. 9 , the construction machine 1 is provided with a hydraulic pump 41 , a tank 42 , and switching valves 43 and 45 . The hydraulic pump 41 and the switching valve 43 are connected via a flow path 46 , and the hydraulic pump 41 discharges hydraulic oil stored in the tank 42 to the flow path 46 . Also, the tank 42 and the switching valve 43 are connected via a flow path 47 , and hydraulic oil is discharged to the tank 42 through the flow path 47 . Two flow paths 51 and 52 extend between the switching valves 43 and 45, respectively.

Also, in the example of FIG. 9 , each of the two flow paths 55 and 56 extends from the switching valve 45 to the hydraulic motor 53 that is the actuator that drives the winch 36 . In addition, two flow paths 57 and 58 extend from the switching valve 45 as flow paths separate from the flow paths 55 and 56 . In one example of FIG. 9 , a hydraulic motor 61 is provided in the auger power source 33 as an actuator for rotationally driving the auger 15 . Also, in the stationary machine 2 , each of the two flow paths 62 , 63 extends from the hydraulic motor 61 . In the example of FIG. 9 , the construction machine 1 is provided with connection portions that connect the flow paths 57 and 58 to flow paths outside the construction machine 1 . At the connecting portions described above, the flow path 57 is connected to the flow path 62 via the coupler 65 , and the flow path 58 is connected to the flow path 63 via the coupler 66 .

The switching valve 43 can be switched between a neutral state, a first operating state and a second operating state. In the neutral state, the flow paths 46, 47, 51 and 52 are communicated with each other in the switching valve 43, and the switching valve 43 is so-called ABPT open. As a result, no pressure difference is generated to rotate the hydraulic motors 53 and 61, and the hydraulic oil from the hydraulic pump 41 flows back to the tank 42, resulting in an unloaded state. In the first operating state, in the switching valve 43 the flow path 46 communicates only with the flow path 51 and the flow path 47 communicates only with the flow path 52 . Therefore, in the first operating state of the switching valve 43 , hydraulic oil is supplied from the flow path 46 to the flow path 51 and is discharged from the flow path 52 to the flow path 47 . Further, in the second operating state, in the switching valve 43 , the flow path 46 communicates only with the flow path 52 and the flow path 47 communicates only with the flow path 51 . Therefore, in the second operating state of the switching valve 43 , hydraulic oil is supplied from the flow path 46 to the flow path 52 and is discharged from the flow path 51 to the flow path 47 .

The switching valve 45 is switchable between a first switching state and a second switching state. In the first switching state, the channel 51 communicates with the channel 55 and the channel 52 communicates with the channel 56 in the switching valve 45 . Therefore, in the first switching state of the switching valve 45, hydraulic oil can be supplied to the hydraulic motor 53 through either of the flow paths 55 and 56, and the winch 36 can be driven. In the second switching state, in the switching valve 45 , the flow path 51 communicates with the flow path 57 and the flow path 52 communicates with the flow path 58 . Therefore, in the second switching state of the switching valve 45, hydraulic oil can be supplied to the hydraulic motor 61 through either of the flow paths 62 and 63, and the auger 15 can be rotationally driven. Therefore, by setting the switching valve 45 to the second switching state, the hydraulic oil can be supplied from the construction machine 1 to the stationary machine 2, and the auger 15 can be driven.

In this embodiment, the construction machine 1 and the stationary machine 2 as described above are used to drive piles into the ground at each of a plurality of positions. In the work of driving piles into each of the plurality of positions, ground curing is first performed in the area where the stationary machine 2 is arranged. At this time, for example, the ground is cured by laying a metal plate such as a steel plate on the ground in the area where the stationary machine 2 is arranged.

Then, as shown in FIGS. 1 to 3 and the like, the stationary machine 2 is placed in the area where the ground has been cured. At this time, by using the boom 6 of the construction machine 1 to lift the stationary machine 2 as described above, the construction machine 1 is moved to an area where the stationary machine 2 is arranged. The stationary machine 2 is arranged side by side with the construction machine 1 on one side in the width direction of the traveling vehicle body 3 . In addition, the stationary machine 2 is arranged such that its longitudinal direction coincides or substantially coincides with the longitudinal direction of the traveling vehicle body 3 . Therefore, in the stationary machine 2 arranged in the ground-cured area, the carriage 12 and the auger 15 are movable relative to the base frame 11 along the longitudinal direction of the traveling vehicle body 3 .

In addition, in the stationary machine 2 arranged in the ground-cured area, the rail portion 16A is located farther from the traveling vehicle body 3 of the construction machine 1 than the rail portion 16B. In the stationary machine 2, the auger 15 protrudes with respect to the base frame 11, the carriage 12 and the leader 13 in the width direction opposite to the side where the traveling vehicle body 3 is located. The stationary machine 2 is arranged with each of the four jacks 20 grounded on the ground. Then, the base frame 11 is adjusted horizontally or substantially horizontally by adjusting the expansion/contraction state of each jack 20 in a state where the stationary machine 2 is placed in the ground-cured area. At this time, for example, the hydraulic oil supplied from the construction machine 1 extends or contracts each of the jacks 20 to adjust the base frame 11 horizontally or substantially horizontally.

Then, with the construction machine 1 and the stationary machine 2 arranged as described above, the front outrigger 7A and the rear outrigger 8A of the construction machine 1 are extended outward in the width direction of the traveling vehicle body 3, respectively. Then, the base frame 11 of the stationary machine 2 is pressed vertically downward by the extended front outriggers 7A and rear outriggers 8A. That is, the base frame 11 is pressed vertically downward by each of the front outrigger 7A and the rear outrigger 8A on the side where the stationary machine 2 is positioned in the width direction of the traveling vehicle body 3 . At this time, the front outrigger 7A pushes the plate 18A, and the rear outrigger 8A pushes the plate 18B. With the front outriggers 7A and the rear outriggers 8A pressing against the base frame 11, the carriage 12 can move along the longitudinal direction of the stationary machine 2 between the front outriggers 7A and the rear outriggers 8A. In addition, the front outrigger 7B and the rear outrigger 8B on the side opposite to the side where the stationary machine 2 is located in the width direction of the traveling vehicle body 3 each protrude outward in the width direction of the traveling vehicle body 3 . Each of the overhanging front outrigger 7B and rear outrigger 8B is grounded on the ground.

Then, as shown in FIGS. 5 and 6, the auger 15 is moved vertically downward along the leader 13 while the front outrigger 7A and the rear outrigger 8A are pressing the base frame 11. (Auger screw) 15 is rotated. As a result, the ground is excavated to form a hole (vertical hole) in the ground. At this time, for example, the auger 15 is rotationally driven by hydraulic oil supplied from the construction machine 1 . Further, in the present embodiment, excavation is sequentially performed at a plurality of positions by the auger 15 while moving the carriage along the longitudinal direction of the stationary machine 2 . At this time, the truck 12 is moved by hydraulic oil supplied from the construction machine 1, for example. Also, the truck 12 moves between the front outriggers 7A and the rear outriggers 8A.

Since excavation is performed by the auger 15 as described above, in the pile driving method of the present embodiment, it is adjacent to the stationary machine 2 on the side opposite to the side on which the traveling vehicle body 3 is located in the width direction, and The ground is excavated at each of a plurality of positions in the region between the front outrigger 7A and the rear outrigger 8A in the longitudinal direction of the stationary machine 2 (the longitudinal direction of the construction machine 1). The positions at which the excavation takes place are located longitudinally of the stationary machine 2 at distances from each other. Also, a hole is formed in the ground at each of the plurality of excavated locations.

Then, as shown in FIGS. 7 and 8, the piles 35 are inserted (implanted) into the holes formed in the ground at each of the plurality of excavated positions. At this time, the construction machine 1 is used to insert the pile 35 into the hole. That is, in the construction machine 1 , the revolving body 5 is revolved, and the hook 38 suspended from the front end of the boom 6 is hooked on the pile 35 . Thereby, the pile 35 is lifted by the construction machine 1 . Then, the construction machine 1 inserts the pile 35 lifted as described above into the hole formed by excavation. Then, piles 35 are driven into the holes formed at each of the plurality of excavated positions as described above.

When the piles 35 are driven at all of the excavated positions, the front outriggers 7A and the rear outriggers 8A release the pressure on the base frame 11 . Then, the stationary machine 2 is moved from the area in which it was placed. At this time, the stationary machine 2 is moved by lifting the stationary machine 2 using the boom 6 of the construction machine 1 as described above. The construction machine 1 moves the lifted stationary machine 2, for example, to the area where the pile driving is to take place next. Also in the area where the stationary machine 2 is moved, the construction machine 1 and the stationary machine 2 are used to drive piles at each of the plurality of positions as described above.

In this embodiment, the construction machine 1 and the stationary machine 2 are used to drive the piles 35 as described above. And it becomes possible to insert the pile 35 into the hole formed by excavation. Therefore, in the pile driving work, the number of times the stationary machine 2 is moved is reduced, and the work is reduced in labor. Therefore, the work efficiency is improved in the pile driving work.

Further, in this embodiment, excavation and insertion of the pile 35 into the hole are performed while the front outrigger 7A and the rear outrigger 8A of the construction machine 1 are pressing the base frame 11 . Therefore, the reaction force to each of excavation and insertion of pile 35 is received by front outrigger 7A and rear outrigger 8A in addition to stationary machine 2 . As a result, the stationary machine 2 including the base frame 11 is stably placed on the ground during each of excavation and insertion of the piles 35 . In addition, in this embodiment, the front outrigger 7A and the rear outrigger 8A of the construction machine 1 are used as described above in order to arrange the stationary machine 2 stably. Therefore, in order to stably arrange the stationary machine 2, it is not necessary to separately perform the work of installing the counterweight on the base frame 11, or the like. Therefore, the work efficiency is further improved in the pile driving work.

Further, in this embodiment, the stationary machine 2 can be moved using the construction machine 1 provided with the front outriggers 7A and the rear outriggers 8A. That is, by lifting the stationary machine 2 using the boom 6 of the construction machine 1, the stationary machine 2 can be moved. Therefore, it is not necessary to provide a machine for moving the stationary machine 2 and a machine for assembling and dismantling the stationary machine 2 separately from the construction machine 1 . In addition, since the stationary machine 2 can be moved without dismantling the stationary machine 2, the work efficiency is further improved in the pile driving work.

Further, in this embodiment, movement of the carriage 12 and driving of the auger 15 are performed by supplying hydraulic oil from the construction machine 1 . That is, the construction machine 1 is provided with a hydraulic oil supply source for the stationary machine 2 . Therefore, movement of the carriage 12, driving of the auger 15, and the like can be performed appropriately without providing a hydraulic oil supply source separate from the construction machine 1. FIG.

In the above-described embodiment and the like, the case where the stationary machines 2 are arranged side by side on the left side of the traveling vehicle body 3 has been described. With the formula machines 2 arranged side by side, the excavation and insertion of the stakes 35 into the holes restricted by the excavation may be performed as described above. In this case, excavation by the auger 15 and insertion of the pile 35 are performed in a state in which the front outrigger 7B and the rear outrigger 8B each press the base frame 11 vertically downward. Also, while moving the truck 12 between the front outrigger 7B and the rear outrigger 8B, the piles 35 are driven into the ground at each of a plurality of positions. This example also has the same actions and effects as the above-described embodiments and the like.

It should be noted that the present invention is not limited to the above-described embodiments, and can be variously modified in the implementation stage without departing from the gist of the invention. Moreover, each embodiment may be implemented in combination as much as possible, and in that case, the combined effect can be obtained. Furthermore, the above-described embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements.

DESCRIPTION OF SYMBOLS 1... Construction machine, 2... Stationary machine, 3... Traveling vehicle body, 5... Revolving body, 6... Boom, 7A, 7B... Front outrigger, 8A, 8B... Rear outrigger, 11... Base frame, 12... Bogie, 13... Leader 15 Auger 16A, 16B Rail portion 17A, 17B Cross portion 18A, 18B Plate 20 Jack 21 Pedestal 22 Wheel 25 Bogie power source 33 Auger power source 35 Pile.

Claims (4)

Arranging the stationary machine on one side in the width direction of the traveling vehicle body of the construction machine in a state in which the truck is movable along the longitudinal direction of the traveling vehicle body of the construction machine. When,
pressing the base frame of the stationary machine vertically downward with each of the front outrigger and the rear outrigger on the side where the stationary machine is located in the width direction of the traveling vehicle body;
While the base frame is pressed, a plurality of locations are drilled sequentially using an auger attached to the carriage via a leader while moving the carriage between the front outrigger and the rear outrigger. and
inserting a pile using the construction machine into a hole formed by the auger excavation at each of the plurality of locations;
A pile driving method comprising: The method further comprising moving the stationary machine by releasing pressure on the base frame by the front outrigger and the rear outrigger and lifting the stationary machine using a boom of the construction machine. 1. Pile driving method. 2. The pile driving method according to claim 1, further comprising moving the truck and driving the auger by supplying hydraulic oil from the construction machine. A stationary machine used in the pile driving method according to any one of claims 1 to 3,
comprising the base frame, the carriage, the leader and the auger ;
the base frame comprises a pair of plates longitudinally spaced apart from each other;
each of the pair of plates protrudes outward in the longitudinal direction of the base frame;
in the base frame, each of the pair of plates is pressed by a corresponding one of the front outrigger and the rear outrigger;
stationary machine.

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