JPS5976329A - Pile driver - Google Patents

Abstract

PURPOSE:To easily move the whole of a pile driver by a method which a pile driver is attached in a reciprocally movable manner in the driving direction to the upside of a guide frame to guide the driving direction of sheet piles, and an extrusible movable ring in contact with the upside of sheet piles driven is provided to the rear end of the guide frame. CONSTITUTION:An early-period sheet pile 4A is driven at the head position of driving line, the H-shaped steel 2 of a pile driver is matched with the driving direction, and both sides of the sheet pile 4A are contacted with an uprising part 12A and a hanging part 14 by operating interval alteration means 6 and 7. The setting of the guide frame 3 is completed according to thickness of sheet piles 4. The pile drive body 17 is orderly moved on the guide frame 3 by an oil motor 28, and sheet piles supported by the guide frame 3 are penetrated into the ground in connection with the sheet pile 4A by means of the chuck 48 of the driver body 17. After the driving of a series of sheet piles 4, an oil-pressure cylinder 70 is extended, the rear end of the guide frame 3 is lifted up by the movable ring 71, the whole of the pile driver is moved, and sheet piles are again driven.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pile driver, and particularly to a pile driver capable of continuously driving sheet piles in a straight line.

Sheet piles are used in closing construction, earth retaining construction, agricultural canal construction, etc. due to their ease of handling and speed of construction. These sheet piles are driven into the soil one after another by a pile driver and are used to cover the sheet pile walls with cedar bark. In this case, each sheet pile is section-aligned and integrated with each other, but the verticality of the sheet pile is maintained accurately and the wall side is maintained in a straight line so that the sheet pile wall can properly demonstrate its design strength. must be maintained. For this reason,
A guiding frame extending in the driving direction is installed on the ground to sandwich both sides of the sheet pile to prevent bending of the wall side. conventionally,
As the guiding frame, concrete was poured over the entire sheet pile wall, or a portable guiding frame was moved and installed as the construction progressed. However, in this conventional technology, since the pile driving machine and the guiding frame are equipped completely separately, it is difficult to maintain the verticality of the sheet pile, and when viewed from the driving direction, the sheet pile is There was an inconvenience that it tilted from side to side.

Once a slope occurs, it is difficult to correct it, resulting in a decrease in construction accuracy and a time-consuming process.

The present invention has been made in view of the drawbacks of the prior art described above, and an object of the present invention is to provide a pile driver that can drive sheet piles accurately, rapidly, and continuously.

The present invention provides a pile driving machine body equipped with a guiding frame for guiding the driving direction of sheet piles, which engages with the guiding frame so as to be able to move forward and backward in the driving direction, a means for sliding the pile driving machine body, and a means for sliding the pile driving machine body, and The above object is achieved by providing a movable wheel that can be freely pushed out and provided at least at the rear end of the guiding frame.

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 to 5.

FIG. 1 is a schematic perspective view showing a pile driver according to the present invention. In the figure, a guide frame 3 consisting of L-I type steels 1 and 2 as left and right sets of guide frames installed parallel to each other is placed on the ground with sheet piles 4, 4. ... driving direction (extending diagonally in the upper right direction in Figure 1).This guide frame 3 is used to drive the sheet piles 4 correctly in a straight line by inserting the sheet piles 4 from the left and right. belongs to.

Said H-beam steels 1, 2 (reinforcing members 5, 5...
It is reinforced by the spacing changing means 6 at the front and rear ends.
7 is equipped. The front interval changing means 6 includes a slide frame l having guide plates 8 and 9 disposed vertically and parallel to each other.
O and HWWN22 are interposed between
Hydraulic jack 11 that moves from side to side (see Figure 2)
It consists of The H-shaped steel 2 is configured to slide between guide plates 8 and 9. The distance changing means 7 on the rear end side includes 1
A U-shaped arm member 12 is fixed to the rear end of the type 1 steel l, the lower end is fixed to the rear end of the Hm steel 2, and the upper end is slidably fitted into the horizontal part 13 of the arm member 12. and a hydraulic jack 15 that is interposed between the tip of the arm member 12 and the lower end of the suspension member 14 and moves 1 to the left and right with respect to the H-shaped steel 2. By operating the hydraulic jacks 11 and 15 in synchronization 17, it is possible to change the distance between the H-shaped steels 1.2 while maintaining their parallelism.
The distance is changed depending on the thickness of the sheet pile 4.

On the lower surface side of the horizontal g13 of the arm member 12 (,, -1,
As shown in FIG. 5, a hydraulic cylinder 70 is fixed between the suspension member 14 and the rising portion 12.

A movable wheel 71 is installed at one end of a hydraulic cylinder 70 so as to be movable up and down. The movable wheel 71 is pressed down against the upper end of the sheet pile 4 by the extension action of the hydraulic cylinder 70 when the entire pile driver is moved in the driving direction. At this time, the rear end of the guide frame 3 leaves the ground due to the reaction force from the sheet pile 4, so if the front end of the pile driver is pulled with a rope or the like, the movable wheel 71 rotates on the sheet pile 4 and easily Pile driver can be moved and installed.

A movable frame 16 is installed on the guiding frame 3 so as to be slidable in the longitudinal direction of the H-shaped steel 1°2, and a pile driver main body 17 is mounted on the second side of the movable frame 16. The movable pedestal 16 consists of left and right pedestal members 18 and 19, and the left 9114 part of the pedestal member 18 and the right end part of the pedestal member 19 are respectively
(see Fig. 2), [■ Type steel 1
, 2 move to the left or right, the pedestal parts 18, 19 also move integrally. These frame members 1
8°19i-J, is combined with a U-shaped flat substrate 22 on which a left stone direction shifter mυ is freely provided on the upper side of the pedestal member 18.19. The right side frame member 19 and the H-shaped j142 are equipped with a sliding means for the movable frame 16. This sliding means includes a moving part 24 provided at the front end of the frame member 19, and a chain 2 disposed along the longitudinal direction of the upper end of the web 25 inside the H-shaped g12.
Consists of 6. To explain the moving part 24 in detail, the gantry member 1
The oil motor 28 is fixed to the front end of the base plate 27 and extends to the front side of the horizontal flange 21.
A gear mechanism 29 (
2), and the output shaft 30 of this gear mechanism 29 protrudes vertically to the mating surface side of the horizontal 7 langes 20 and 21 following between the steel sections 1 and 2, and at the tip thereof. Is there a gear 32 that engages with the chain 26?
I'm L. The chain 26 includes support members 33 and 33 (-10,000, see FIG. 2) provided at the front and rear ends of the H-shaped steel 2.
The chain 26 is supported by a support plate 35, and the lower side of the chain 26 is supported by a support plate 35.The oil motor 28 is operated When the chain gear 32 is rotated, a reaction force is received from the chain 26, and the movable frame 16 moves to the rit of the guiding frame 3.
It is designed to move in the backward direction.

As for the pile driving machine main body 17 mounted on the upper side of the movable frame 16, the upper end of each of the frame members 18 and 19 is
A substrate 22 that is slidably engaged in slide grooves 36 and 37 provided integrally in the left and right directions, and this substrate 22
V-shaped device that can be rotated in the front and back direction upwards 11 1. It consists of a pile driver main body part 38. This pile driver main body part 38 includes a bottom plate 39, left and right sides of this bottom plate 39 (iillVc
It was installed horizontally in the upper work station between 111140 and 41 on the Lft side.

111i hard pipes 42.43 and intervening members 44.45 to the side wall 40.41, a set of left and right lifting hydraulic cylinders 46.47, and this lifting hydraulic cylinder 46.
．． A U-shaped chuck part 48 suspended from the lower end of 47;
The chuck portion 48 is composed of a fixed chuck 49 and a movable chuck 50, which are provided opposite to each other inside the tip ↑b15 of the chuck portion 48. Projections 51 ) 52 are provided on the left and right ends of the outer surface 1 of the substrate 22 of the mount member 18 , 19 , and the projections 51 152 [
Protrusions 53 and 54 are provided on the left and right ends of the opposing substrate 22, of which the protrusions 51 and 53 on the pedestal member 18 side are bolted. For this reason, the above I (type steel 2 VC
On the other hand, when the counter 1 moves to the left or right, the right half of the board 22 slides on the pedestal member 19.

Note that it is also possible to bolt the protrusions 52 and 54 and slide the left half of the board 22 on the pedestal member 18. The slide grooves 36 and 37 are formed in a tab tail shape and are made of 1 so that the movable pedestal 16 and the board 22 can be surely engaged with each other.

A rotating means 55 is provided between the base plate 22 and the bottom plate 39, and rotates the pile driver main body 3 with respect to the driving direction of the sheet pile 40.
8 can be tilted back and forth. That is, as shown in FIGS. 2 and 4, both left and right sides of the rear end portion are rotatably supported in the front and rear directions by bearings 56 and 57 below the bottom plate 39. At the front end of the bottom plate 39, a threaded rod 56 embedded in the base plate 22 is inserted through a hole 57 and protrudes upward, and an adjustment nut 58 is screwed onto the lower surface side of the base plate 22 of the screw rod 56. has been done. By turning this adjustment nut 58, the inclination angle of the pile driver main body 38 can be adjusted. This is to adjust the direction in which the sheet pile 4 is pressed in by the pile driver main body 38 and to prevent the sheet pile 4 from tilting in the direction in which the sheet pile is driven, or to change the normal line of the press-in. The threaded rod 56
A locking nut 59 for removing the bottom plate 39 is screwed onto the upper end of the bottom plate 39. A reinforcing member 60 is fixed between the bottom plate 39 and (111@40).

The lifting cylinders 46 and 47 are configured to move up and down 1 in synchronization with each other, thereby moving the chuck section 48 up and down. The fixed chuck 49. The movable chuck 50 is formed into a disc shape with a vertical surface, and the fixed chuck 49
is fixed to the inner side of the transitional end of the left arm 48A of the chuck part 48, and the movable chuck 50 is installed inside the rear end of the right arm 48B of the chuck part 48 so as to be movable in the left-right direction by a hydraulic cylinder 61. The fixed chuck 49. The movable chucks 50 are provided so as to face each other parallel to the driving direction of the sheet pile 4, and the moving operation of the movable chuck 50 pushes the sheet pile 4 in its thickness direction.
It is designed so that it can be held in place.

A retaining member 62 having a hook-shaped curved 11″r portion at the left and right ends is fixed to the Ai1 surface side of the chuck portion 48,
This retaining member 62 is fitted into a guide plate 63 fixed between the bottom plate 39 and the reinforcing tube 42 so as to be slidable in the vertical direction. This ensures that the chuck section 48 can be moved up and down irrespective of the inclination of the pile driver main body section 38 mentioned above. The pile driver main body 38 is mounted on the guiding frame 3 facing backward. In addition, the fixed chuck 49
．． The movable chuck 50 is equipped so as to protrude rearward from the sides 40 and 41, so that after driving one sheet pile 4, when hanging the next sheet pile 4 next to the sheet pile 4, , the back and forth movement of the pile driver main body 1G is reduced. A hydraulic operating section 6 is provided on the front side of the 11III wall 41.
4 is set! I'm here.

The center (lull edge of the frame part 18, 19 is located outside the center edge of the shaped steel 1.2. A square groove 652 and a trapezoidal groove 66 are carved in the base plate 22 and the bottom plate 39, respectively. The size of the groove 651 and the trapezoid groove 66 and the interval between the fixed chuck 49 and the movable chuck 50 are as follows.
Even if the distance between the H-shaped steels 1 and 2 is changed, the substrate 22.
It is formed in a size that allows the sheet pile 4 to be sufficiently gently clamped on the guiding frame 3 without coming into contact with the bottom plate 39. The sheet pile contact surface 49A of the fixed chuck 49 is located in the same vertical plane as the inner end surface 2OA of the horizontal 7 flange 20 of the H-shaped steel 1.

In addition, the hydraulic jacks 11, 15, the oil motor 28,
The hydraulic cylinders 46 and 47 for lifting, the hydraulic cylinder 61 for holding the sheet pile 4, and the hydraulic cylinder 70 for lifting the movable wheels 71 are each connected to a hydraulic power source (not shown), and a hydraulic operating section 64
It is activated by operating the lever.

Next, the overall operation of the above embodiment will be explained.

For example, concrete sheet piles are used as the sheet piles. First, the initial sheet pile 4A is driven into the leading position of the driving line where the sheet pile wall is to be formed, paying attention to the verticality and the cob.

Next, the distance between the L-shaped steels 1 and 2 is opened to a thickness greater than the thickness of the sheet pile 4, and the entire pile driving machine is hoisted with a rope so that the arm member 12 rises by 1'% 12A and the lifting member 14 is The initial sheet pile 4A is installed so as to sandwich the above-ground projecting part.At this time, the hydraulic cylinder 70 is contracted, and the rising part 12A is brought into contact with the right side of the sheet pile 4 in FIG. Next, the interval changing means 6 and 7f are operated to sandwich the interval between the H-beams 1 and 2 so that the hanging member 14 is in contact with the left side of the sheet pile 4. At this time, As it moves, the setting of the guide frame 3 according to the thickness of the sheet pile 4 is completed.The fixed chuck 49 of the pile driver main body 38 and the center edge of the H-shaped steel 1 are flush with each other in the vertical plane. be.

Next, the oil motor 28f is driven 1 to advance the pile driver main body 16 forward, and then the sheet pile 4 for the next driving is suspended and inserted into the guide frame 3 while aligning the section to the front side of the initial sheet pile 4A. insert. At this time, it is guided by the wall axis Fi guiding frame 3 formed by the two sheet piles 4A and 4, and becomes a straight line. Further, the left side of the sheet pile 4 is in contact with the fixed chuck 49. The oil motor 28 is driven again to move the pile driver main body 16 backward to hold the sheet pile 4 in the chuck part 48, and adjust the longitudinal position of the pile driver main body 16 and the rotation mechanism 55 to move the sheet pile 4 backward. Press-fit normal line and fixed chuck 49. The line of action of the movable chamber 2500 is aligned. This rotation mechanism 55 will be fixed from now on, and will be adjusted as necessary, such as when the press-fit normal line is inclined due to earth pressure or the like.

Furthermore, the position of the pile driver main body 16 is determined by stopping the oil motor 28.

After the setting of the pile driver main body 16 is completed, the press-fitting operation of the sheet pile 4 begins. That is, by operating the hydraulic cylinder 61, the movable chuck 5
0 to the fixed chuck 49 side and clamp the entire sheet pile 4 with a predetermined pressing force (see arrow A in FIG. 3). Next, the lifting hydraulic cylinders 46° 47 are lowered, and the chuck portion 48
Press the sheet pile 4 held between the
Ho reference. Move the movable chuck 50 to the right to stop holding the sheet pile 4 (see arrow in figure 8g3). Hydraulic cylinders 46 and 47' for raising and lowering (raise and return the chuck part 48 to its original position (see arrow 2 in FIG. 3)).

Thereafter, the above-described operation is repeated until the sheet pile 4 is press-fitted into the ground for a predetermined length. The press-in reaction force is generated by the pile driver main body 16. The weight of guide frame 3 is the weight of the guide frame 3. This pile driving work of the sheet pile 4 is performed near the ground due to static pressure, so there is no vibration or noise, and there is no negative impact on the surrounding environment, and there is no possibility that the sheet pile 4 will be damaged due to vibration or buckling. Monamu. Fixed fixed chuck 4
Since the guide frame 9 moves in a vertical plane flush with the edge of the guiding frame 3, the verticality of the sheet pile can be maintained accurately. After driving the sheet pile 4, the oil motor 28 is operated to move the pile driver main body 16 forward, and the sheet pile 4 for the next driving is suspended.The pile driver main body 16 is set and the sheet pile is set in the same manner as described above. Perform press fitting in step 4.

In this way, the sheet piles 4 are press-fitted one after another until they reach the front end of the guiding frame 3, then the hydraulic cylinder 70 is extended and the movable wheel 71 lifts the rear end of the guiding frame 3 (see Fig. 5). The entire batter is moved approximately by the length of the guiding frame 3. Next, the hydraulic cylinder 70 is contracted and the rear end of the guide frame 3 is lowered to the ground. At this time, the sheet pile 4 at the front end of the sheet pile wall, which has been completely driven, is held between the rising portion 12A of the arm member 12 and the hanging member 14. The above-mentioned movement of the pile driver and press-fitting of the sheet piles may be repeated in sequence. In addition, when moving the pile driver, the work will be made easier if the interval between the guide frames 3 is made wider than the thickness of the arrow 4. Further, the sheet pile can be easily pulled out by operating the pile driver described above in reverse.

According to this embodiment, the driving direction of the sheet pile is guided <1%
By providing a frame, the cob of the sheet pile wall can be formed in a straight line, and since the pile driver body is mounted on this guiding frame so that it can move forward and backward, it is possible to move and install the guiding frame and move the pile driver body at the same time. In addition, it is possible to continuously drive sheet piles while moving the pile driver body back and forth on the guide frame, which significantly improves work efficiency.

Since the sliding movement of the pile driver body is performed by a chain and a chain gear, it is possible to reliably move forward and backward with a simple configuration, and it can be moved over a wide range on the guide frame. Furthermore, since the sheet piles are press-fitted using static pressure, there is no adverse effect on the environment or damage to the sheet piles, and the press-in normal line can be easily changed depending on the driving situation, soil structure, etc. Furthermore, since the fixed chuck moves within a vertical plane extending from the edge of the guide frame, the verticality of the sheet pile can be maintained accurately. In addition, since the interval between the guide frames can be changed, it is highly versatile regardless of the thickness of the sheet pile. Further, the fixing chuck is always positioned above the edge of the guide frame regardless of the change in the interval between the guide frames, so that the installation work is easy.

Also, when moving the entire pile driver, push the moving wheel onto the top of the sheet pile and press the rear end of the pile driver. Since it is carried out by lifting, less traction force is required and it can be moved and installed quickly.

In the above embodiment, the guide frame was made of H-shaped steel, but it may be made of machined steel, plates, etc. The main body of the pile driver may be moved forward and backward by a hydraulic cylinder, and the movable frame may be made of One end of the plywood is made into a U-shape and is engaged with the horizontal flange of the 10,000 H-shaped steel, and the other end may be simply slidably mounted on the horizontal flange of the other H-shaped steel, and the right side When the frame member and the board are bolted together, the left side may be a movable chuck and the right side may be a fixed chuck.
When using shaped steel piles, use movable chucks on both the left and right (17), and when driving sawn sheet piles in reverse directions, alternately fix both the left and right movable chucks.

On the other hand, it can be used in a movable manner. In addition, a movable wheel that can be pushed out is provided on the horizontal lower surface V of the arm member, and also on each IJ.
One at each rear end of the shaped steel, or one at each end.
One each may be provided at the 13iJ and rear end portions of the I-type steel.

As described above, according to the present invention, the guide frame is equipped with the pile driver main body, and the guide frame is provided with a movable wheel that can be pushed out freely, so that the guide frame and the pile driver main body can be quickly moved to the pile driving site.

It can be easily installed, and since the sheet pile is supported at two places, the upper and lower parts of the guide frame and the chuck part of the pile driving machine, the lead angle of the sheet pile can be accurately maintained, and this pile driving The machine body is equipped to move forward and backward, allowing continuous pile driving work.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view showing a pile driver according to the present invention, Fig. 2 is a longitudinal sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is a chuck provided on the main body of the pile driver. An explanatory diagram of the operation of the section, Fig. 4 (
-J: An explanatory diagram of the operation of the rotating means of the main body of the pile driver. FIG. 5 is a schematic diagram showing part A in FIG. 1. 1.2...H-shaped steel, 3...Guiding frame, 4,4A...Sheet pile, 17...Pile driver main body. Patent applicant Nearyo Co., Ltd. Figure 2 Figure 3 Figure 4 Figure 5 Figure 3

Claims (1)

[Claims] (I) a guiding frame for guiding the driving direction of the sheet pile; a pile driving machine body equipped with the guiding frame so as to be able to move forward and backward in the driving direction; and means for sliding the pile driving machine body; A pile driver comprising a movable wheel that can be freely pushed out and provided at least at the rear end of a guiding frame.