JP5781112B2 - Pile rotary presser direction changing method and pile rotary presser re-installation method - Google Patents

Description

  The present invention relates to a method for changing the direction of a pile rotary press used in underground laying work of a foundation pile that is performed prior to the construction of a structure, and a pile rotary press using the direction changing method of the pile rotary press Re-installation method.

  A pile rotary press machine of the type shown in FIG. 12 is known as a pile burying machine for burying piles such as foundation piles in the ground. Fig. 12 (A) is a front view of the pile rotary press, Fig. 12 (B) is a side view of the pile rotary press, and Fig. 12 (C) is a plan view of the pile rotary press.

The pile rotary press-fitting machine 10 illustrated in FIG. 12 includes a base frame 1, a lift drive device 2, a lift frame 3 that can be lifted and lowered with respect to the base frame 1 by the lift drive device 2, and a rotation mounted on the lift frame 3. A driving device 4 and a pile gripping mechanism 5 that can be rotationally driven with respect to the lifting frame 3 by the rotational driving device 4 are included.
The underframe 1 has wheels 11 for moving the pile rotary presser 10 along a ruler member 6 to be described later for adjusting the position of the pile rotary presser 10.

  The elevating drive device 2 is composed of four hydraulic piston cylinder devices 21. The piston cylinder device 21 has a cylinder portion standing at four corners of a lifting frame 3 having a square shape in plan view, and a piston rod connected to the frame 1. According to the elevating drive device 2, the elevating frame 3 can be raised with respect to the base frame 1 by projecting the piston rod from the cylinder portion with a hydraulic device (not shown), and elevating by moving the piston rod back to the cylinder portion. The frame 3 can be lowered to the frame 1.

  The rotation drive device 4 includes a ring gear 41 rotatably mounted on the elevating frame 3, a pinion gear 42 meshing with the ring gear 41, and a hydraulic rotation motor 43 that rotationally drives the gear 42.

  The pile gripping mechanism 5 includes a chuck portion 51 that can be opened and closed by a hydraulic piston cylinder device 52 to grip and release the pile. The pile gripping mechanism 5 is attached to the ring gear 41 and is driven to rotate when the ring gear 41 is rotated.

  Such a pile rotary press-fitting machine is described in, for example, Japanese Patent No. 2519851.

  This pile rotary presser 10 can be modified to a self-propelled pile rotary presser in combination with a self-propelled device, but doing so will increase the overall size of the machine and increase its weight. May be difficult to handle, and may not be able to be carried into a small construction site.

  Therefore, in pile embedding work at a narrow site, the pile rotary press-fitting machine 10 is installed on the pile embedding target ground 100 via the ruler member 6 by lifting it with a crane or the like. In the installation of the pile rotary presser 10, the pile rotary presser 10 can be moved along the ruler member 6 to adjust the position as necessary.

  In the pile holding mechanism 5 of the pile rotary press machine 10 installed in this way, the first ready-made pile P (P1) provided with the ground excavation head H at the lower end is built by hanging it with a crane, etc. The pile 5 can be press-fitted into the ground 100 by causing the mechanism 5 to hold the pile and rotating the pile holding mechanism 5 with the rotation drive device 4 to lower the lifting frame 3 by the lifting drive device 2. The lifting frame 3 is raised as indicated by the chain line in FIG. 12A prior to the pile gripping and pile rotation press-fitting.

  Further, if necessary, the pile holding mechanism 5 of the partly buried pile P is released from the pile holding mechanism 5, the lifting frame 3 is lifted by the lifting drive device 2, and the pile P is held in the pile holding mechanism 5 again. The pile P can be further press-fitted into the ground 100 by lowering the elevating frame 3 by the elevating driving device 2 while rotating the pile holding mechanism 5 with the rotation driving device 4.

  By repeating such a pile rotation press-fitting operation as many times as necessary, the pile P can be buried at a desired depth in the ground 100, and if necessary, one or more piles can be buried in a pile buried first. By connecting them sequentially, a predetermined number of piles can be embedded in the ground by repeating the same rotary press-fitting operation.

Whether the number of piles to be buried is one or plural, as illustrated in FIG. 10 to be described later, an auxiliary member 90 is detachably connected to the last pile, and the auxiliary member The pile can be press-fitted through 90 and then the auxiliary member 90 can be recovered.

  Further, in order to smoothly lay the pile, as shown in FIG. 12 (A), a liquid feeding shaft SF for supplying the drilling liquid to the drilling head H is arranged in the inner space of the pile P, and if necessary, this The swivel device SW for liquid feeding is connected to the liquid feeding shaft SF, and the pile can be embedded while supplying the drilling liquid from the liquid feeding shaft SF via the swivel device SW.

  In any case, according to the pile rotary press-fitting machine, a pile having a predetermined length as a whole can be embedded in the ground while adding piles, so that the length of one pile can be shortened, Even if the working space above the ground required when building in a pile gripping mechanism by hanging it with a crane etc. is narrowed for existing structures, such as under a viaduct, etc. There is an advantage that pile burying work can be carried out.

Japanese Patent No. 2519851

  However, the pile rotary press machine may be required to change direction. The ruler member may be required to change direction accordingly. For example, a change of direction may be required when moving the rotary press-fitting machine toward the next pile embedding target ground.

  The rotary press-fitting machine normally has a substantially rectangular shape when viewed from the plane. However, as illustrated in FIG. 13, the ruler member 6 extends for stabilization during position adjustment movement along the ruler member 6. The length α in the same direction as the extending direction X is longer than the length β in the direction Y across the direction X in which the ruler member 6 extends. As shown in FIG. 13, the ruler member 6 may be longer than the length α (α ′> α).

  When the rotary press-fitting machine 10 is to be moved from the currently installed ground (first ground) 101 to the next predetermined second ground 102, there is an interval between the two grounds. For example, there is an existing structure ST (for example, a column structure) ST, and the distance L between the adjacent structures ST is the same as the sequential arrangement direction of the structures of the pile rotary press 10 installed on the first ground 101. When the length is shorter than the length in the direction (the length α in the X direction in FIG. 13) and longer than the length β in the direction crossing the sequential arrangement direction of the structures, the rotary presser 10 is changed in direction, It must be possible to pass between adjacent pillar structures.

  In the case of the example in FIG. 13, when the pile rotary presser 10 is first installed on the ground 101, the pile rotary presser 10 is used by using a transporter such as a large crane that can lift or lift the pile rotary presser 10. Even if it can be installed, the pile rotary presser 10 is moved to the next ground 102, and when it is installed there, the pile rotary presser 10 is lifted or lifted by the same conveyor to change the direction, and a narrower column structure In order to move between the objects ST and move to the ground 102, the transporter is too large to perform such work.

  Therefore, the present invention provides a frame, a lift drive device mounted on the frame, a lift frame that can be lifted and lowered with respect to the frame by the lift drive device, and a rotation drive device mounted on the lift frame. Including a pile gripping mechanism that can be rotationally driven with respect to the lifting frame by the rotation drive device, and the base frame is installed on a ruler member installed on a pile embedding target ground, and is passed through the pile gripping mechanism. The pile to be embedded is vertically gripped by the pile gripping mechanism, and the pile gripping mechanism is rotated by the rotary drive device while the pile is moved by the vertical drive of the lift frame by the lift drive device. A method for changing the direction of a pile rotary press for turning a pile rotary press that can be press-fitted into the ground from a state in which the pile rotary press is installed on the local board via the ruler member. Pile rotation press-fitting without the need for a conveyor Provides a method for changing the direction of a pile rotary press that can easily change the direction so that it can be moved in the desired direction on the local board and toward the ground in the desired direction using the ruler member This is the first problem.

,
Moreover, this invention moves the said pile rotation press machine from the state installed on the 1st ground which is the said local board to the next 2nd predetermined ground, and installs the pile rotation press which installs on this 2nd ground A method for re-installing a pile rotary press-fit machine, wherein the pile rotary press-fit machine can be easily changed in a direction suitable for movement to the second ground and installed on the second ground. Providing is a second problem.

In order to solve the first problem, the present invention
A base frame, a lift drive device, a lift frame that can be lifted and lowered with respect to the stand frame by the lift drive device, a rotation drive device mounted on the lift frame, and a rotation drive device that rotates with respect to the lift frame Including a drivable pile gripping mechanism, wherein the underframe is installed on a ruler member installed on a pile embedding target ground, and the embedding target pile built up and down through the pile gripping mechanism is A pile rotary press machine capable of press-fitting the pile into the ground by driving the lift frame vertically by the lift driving device while holding the pile gripping mechanism and rotating the pile gripping mechanism with the rotary drive device. It is a method of changing the direction of a pile rotary press that causes the rotary press to change direction from a state where the rotary press is installed on the local board via the ruler member,
A frame temporary connection step of temporarily connecting the ruler member to the frame so that the pile rotary press-fitting machine can be moved up and down together with the ruler member;
A support means installation step of installing a support means of the pile rotary presser in a portion below the pile gripping mechanism of the local board ;
Wherein the elevator frame the elevator drive unit pulling raised with respect to the pile gripping mechanism each of the underframe, the by gripping the supporting means placed in the supporting means mounting step該杭gripping mechanism, then the support A frame lifting step for lifting the frame from the local board together with the ruler member connected in the frame temporary connection step with the lifting drive device as a support, and
In the state where the frame is pulled up from the local board in the frame lifting step, the lifting frame is rotated relative to the pile gripping mechanism holding the support means by the rotary drive device. A direction changing step of turning the pile rotary press-fitting machine in a predetermined direction and changing the direction,
A pile including a frame re-installation step in which the frame is lowered with respect to the lift frame together with the ruler member by the lift drive device after the direction changing step, and is installed on the local board via the ruler member. A method for changing the direction of a rotary press machine is provided.

Here, the “ground” includes not only the ground exposed in the air but also the ground under the surface of the water. The “local board” is the ground where the pile rotary press is actually installed. In the “ pile rotary press machine installed on the local board via a ruler member”, for example, since the ground is under the water surface, the ruler member and the pile rotary press machine are installed on the ground via a suitable base. It is also included.
The “ruler member” is a member that mounts a pile rotary presser on the ruler member and can move the pile rotary presser along the ruler member to adjust the pile rotary presser position, and can also be called a rail member.

  The “temporary connection of the ruler member to the underframe” in the underframe temporary connection step of temporarily connecting the ruler member to the underframe is to use the ruler member as a ruler member by releasing it from the connection to the underframe. The ruler member is connected to the underframe so as to be able to do so, and various connecting means and connecting methods can be adopted as long as they can be connected in that way.

  According to the method of changing the direction of the rotary rotary presser according to the present invention, it is possible to easily change the direction of the rotary rotary presser together with the ruler member in the desired direction on the local board without the need for a large conveyor such as a crane. it can.

Moreover, when temporarily connecting the ruler member from the pile rotation press machine whose direction has been changed, for example, a rail member is installed toward the second ground in the desired direction following the ruler member, and the pile rotary press machine is It can be moved from the ruler member along the rail member toward the second ground. Thus, without requiring a large transporter such as a crane, the pile rotary press-fitting machine can be changed to move toward the ground in a desired direction using the ruler member.

  Examples of the “support means” of the pile rotary press-fitting machine used in the implementation of the support means installation step include a support column built through the pile gripping mechanism and a support body that supports the support column from below. Can be mentioned.

  Such a support pillar can mention the member of the height which can function as a support pillar of the same cross-sectional shape as an embedding target pile, for example. The support pillar may be formed by combining (for example, sequentially connecting) the divided members.

  The said support body which supports a support pillar from the lower part may utilize the head of the pile already press-fitted and embedded, for example with the pile rotary press. For example, it may include an existing pile head and a connector using a vise mechanism, a fitting mechanism, a meshing mechanism, a bolt connection mechanism, or the like that detachably connects the lower end portion of the support column to the head.

The support for supporting the support pillar from below may be prepared separately from the existing pile. Examples of such a support include a plate-like member laid on the local board portion and a support-pillar holding device that holds the support column provided on the plate-like member.
Examples of the support column holding device include those using a vise mechanism, a fitting mechanism, a meshing mechanism, a bolt connection mechanism, and the like.

  In the case where the support includes a plate-like member laid on the local board portion and the support column holding device, the support vertically positions the support column held by the support column holding device. It may include a posture adjusting mechanism that adjusts so as to be maintained.

Such a posture adjustment mechanism may be included in the support column holding device.
Further, for example, the support column holding device is configured so that the support column can be erected perpendicularly to the plate-like member surface, and the posture adjusting mechanism is a leveling mechanism that can adjust the plate-like member to a horizontal posture ( It may be a horizontal dipping mechanism.

The “supporting means” used for the implementation of the supporting means installation step is the head of the pile to be buried in order to press fit and bury the pile to be buried in the field board by the pile rotary press to a predetermined depth. It may be an auxiliary member (a member commonly referred to as “Yatko” at the pile construction site) removably added to the part.

  When this auxiliary member is adopted, the step of press-fitting and embedding the pile to be buried to a predetermined depth using the auxiliary member also serves as the support means installation step.

Further, the “support means” used for carrying out the support means installation step may be a head of an embedding target pile that is already press-fitted and buried in the local board by the pile rotary press-fitting machine. In this case, the press-fitting and embedding process of the pile to be buried by the pile rotary presser also serves as the support means setting process.

  In addition, the implementation order of each said process is arbitrary if a pile rotation press machine can change direction with a ruler member. For example, the temporary connection of the ruler member to the frame may be performed even before the frame is lifted to the lifting frame side.

In order to solve the second problem, the present invention
A base frame, a lift drive device, a lift frame that can be lifted and lowered with respect to the stand frame by the lift drive device, a rotation drive device mounted on the lift frame, and a rotation drive device that rotates with respect to the lift frame Including a drivable pile gripping mechanism, wherein the underframe is installed on a ruler member installed on a pile embedding target ground, and the embedding target pile built up and down through the pile gripping mechanism is A pile rotary press machine capable of press-fitting the pile into the ground by driving the lift frame vertically by the lift driving device while holding the pile gripping mechanism and rotating the pile gripping mechanism with the rotary drive device. The rotary press-fitting machine is installed on the second ground by moving the rotary press-fitting machine from the first ground, which is the local board, to the next second ground through the ruler member. An installation method,
Prior to moving the pile rotary press machine installed on the first ground onto the second ground via the ruler member, the pile rotary press machine is moved by the direction changing method of the pile rotary press machine according to the present invention. A first direction changing step for changing the direction to a direction suitable for movement to the second ground;
A step of releasing the temporary connection of the ruler member from the pile rotary press machine changed in direction by the first direction changing step ;
A step of installing a rail member toward the second ground following the ruler member;
A step of installing a second ruler member on the second ground following the rail member;
Moving the pile rotary press machine from the ruler member along the rail member toward the second ground;
A pile rotary presser re-installation method including the step of moving the pile rotary presser from the rail member onto the second ruler member and placing it on the second ground is provided.

  According to the pile rotary presser re-installation method according to the present invention, prior to moving the pile rotary presser installed on the first ground onto the second ground, the method for changing the direction of the pile rotary presser according to the present invention is used. It is possible to easily and easily change the direction of the pile rotary press-fitting machine together with the ruler member in a direction suitable for movement to the second ground without requiring a crane or other conveyor. The pile rotary press machine thus made can be moved toward the second ground along the ruler member that has been temporarily disconnected and the rail member that is subsequently installed toward the second ground. Furthermore, it can be easily installed on the second ruler member on the second ground following the rail member.

  The pile rotary presser re-installation method according to the present invention is the same as the method of changing the direction of the pile rotary presser on the first ground, and the pile rotation toward the desired direction on the second ground A direction change of the press-fitting machine may be further included.

The pile rotary presser re-installation method according to the present invention can be adopted at various pile construction sites. For example, it can be conveniently employed in the following cases. That is,
There is an existing structure adjacent to each other with a gap between the first ground and the second ground, and the distance between the adjacent existing structures is the first ground before the first direction changing step. Although the pile rotary press machine installed and the ruler member temporarily connected to the pile rotary press machine are combined, it is shorter than the length in the same direction as the sequential arrangement direction of the existing structures, and the sequential arrangement direction of the existing structures Is longer than the length in the direction crossing.

  In such a case, the rotary press machine can be easily moved and installed on the second ground by changing the direction of the rotary press machine for each ruler member, for example, 90 degrees so that the rotary presser machine can pass between adjacent existing structures.

  As described above, according to the present invention, the frame, the elevating drive device mounted on the frame, the elevating frame that can be driven up and down with respect to the frame by the elevating drive device, and the elevating frame are mounted on the elevating frame. And a pile gripping mechanism that can be rotationally driven with respect to the lifting frame by the rotational drive device, and the base frame is installed on a ruler member installed on a pile-embedded ground, the pile The pile to be buried that has been built in the vertical direction through the gripping mechanism is gripped by the pile gripping mechanism, and the pile gripping mechanism is rotated by the rotary drive device while the lift frame is lowered by the lift drive device. A method for changing the direction of a pile rotary presser, wherein a pile rotary presser capable of press-fitting the pile into the ground is changed from a state in which the pile rotary presser is installed on the local board via the ruler member. Without the need for a large transport machine The direction change of the pile rotary press that can be changed easily so that the rotary press can be moved in the desired direction on the local board and to the ground in the desired direction using the ruler member. A method can be provided.

  Further, according to the present invention, the pile rotation press machine is installed on the second ground by moving the pile rotary press machine from the state installed on the first ground, which is the local ground, to the next second ground. A press-fitting machine re-installation method, wherein the pile rotary press-fitting machine can be installed on the second ground by simply changing the direction to a direction suitable for movement to the second ground. Can be provided.

In order to implement the direction changing method of the pile rotary presser according to the present invention, the support body of the support column is installed, the underframe and the ruler member are connected, and the state in which the support column is built is viewed from the front side of the pile rotary presser FIG. It is a figure which shows a mode that a raising / lowering frame is raised in the state which built the support pillar in the support body. It is a figure which shows a mode that a base frame and a ruler member are pulled up using a support pillar as a support. It is a figure which shows a mode that the whole pile rotation press-fit machine changes direction about 90 degree | times with a support pillar as a support. It is a figure which shows a mode that a frame and a ruler member are lowered | hung to the ground with a support pillar as a support after a direction change. It is removal explanatory drawing, such as a support pillar. It is a figure which shows the support body of a support pillar, A figure (A) is a top view of a support body, and a figure (B) is a front view of a support body. It is a figure which shows the example which makes an existing pile a support body of a support pillar. It is a figure which shows the example of a pile rotary presser re-installation. It is a figure which shows the other example of the support means of a pile rotary press-fit machine. It is a figure which shows the further another example of the support means of a pile rotary press. It is a figure which shows a pile rotary press machine, a figure (A) is a front view of a pile rotary press machine, a figure (B) is a side view of a pile rotary press machine, and a figure (C) is a pile rotary press machine. It is a top view. It is a figure which shows the example by which the direction change of a pile rotary press machine is calculated | required.

  Hereinafter, with reference to drawings, the direction change method of the pile rotary press machine and the pile rotary press machine re-installation method concerning the present invention are explained. The pile rotary press machine 10 in the following method description is the same as the pile rotary press machine described with reference to FIGS. 12 and 13 and is already known per se. Parts and parts similar to those of the pile rotary press-fitting machine of FIGS. 12 and 13 are denoted by the same reference numerals as in FIGS.

(1) Direction change method of pile rotary press machine 10 In changing the direction of pile rotary press machine 10, as shown in FIG. 1, pile holding mechanism 5 of pile rotary press machine 10 installed on the first ground 101 is shown. The support body 7 is installed in the 1st ground part below. The elevating frame 3 is lowered to the frame 1. The chuck portion 51 of the pile gripping mechanism 5 is opened. Further, the ruler member 6 is connected to the frame 1 with a connector 9.

  The support body 7 is used to support and stand a support column 8 described later from below. Here, the support 7 is as shown in FIG. FIG. 7A is a plan view of the support 7, and FIG. 7B is a side view of the support 7.

  The support body 7 is a plate-shaped member 71, a pair of column fitting members 73 standing perpendicular to the upper surface of the plate-shaped member 71, and a plate-shaped member 71 for installing on the first ground 101 while maintaining the horizontal position. A leveling device 72 is included. Each column fitting member 73 is a semicircular member when viewed from the plane, and the pair of members 73 are erected on the plate member with a slight gap so as to exhibit a circular contour when viewed from the plane.

  The connector 9 for connecting the ruler member 6 to the frame 1 is not limited to this, but is a member that is bolted to the frame 1 and bolted to the ruler member 6 in this example.

  As shown in FIG. 1, in this example, a cylindrical support column 8 is suspended by a crane K and passed through an open chuck portion 51 of a pile gripping mechanism 5, and a lower end portion of the column 8 is fitted to a column of the support 7. It fits inside the joint member 73 and stands on the support 7. At this time, the protruding member 81 at the lower end of the column is inserted into the gap 74 between the pair of column fitting members 73.

Further, the leveling device 72 forms a plate before or after the support column 8 is built in the support body 7 so that the support column 8 is placed in a vertical posture in a state where the support column 8 is erected on the support body 7. The member 71 is set to a horizontal posture.
The crane K used at this time may be small enough to allow the support pillar 8 to be built. Moreover, it may replace with the crane K and you may use the other conveying machine in which a support pillar can be built.

  Next, as shown in FIG. 2, the elevating frame 3 is raised from the frame 1 by the elevating drive device 2, and then the support pillar 8 is grasped by the pile grasping mechanism 5. In this state, as shown in FIG. 3, the frame 1 and the ruler member 6 are pulled up to the lifting frame 3 side by the lifting drive device 2 with the support column 8 as a support.

Further, as shown in FIG. 4, with the support pillar 8 gripped by the pile gripping mechanism 5 as a support, the lift frame 3 is rotated relative to the gripping mechanism 5 by the rotation driving device 2. Thus, the entire pile rotary press-fitting machine 10 is changed to the desired direction together with the ruler member 6. Thereafter, as shown in FIG. 5, the frame 1 and the ruler member 6 are lowered onto the ground while the support column 8 is supported, and then, as shown in FIG. 6, the support column 8 by the pile gripping mechanism 5. The support pillar 8 is recovered and removed with a crane or the like.

Further, as shown in FIG. 6, the elevating frame 3 can be lowered to the frame 1 as required, and the support 7 and the connecting tool 9 between the frame 1 and the ruler member 6 can be removed. it can.
About the support body of the support pillar 8, it replaces with the support body 7 and you may employ | adopt another support body. For example, as shown in FIG. 8, a support body including a top portion PT of an existing pile embedded in the ground with a pile rotary presser 10 and a connection tool CN connecting a support column 8 to the top portion PT may be used.

(2) Reinstallation method of pile rotary press machine 10 Next, as shown in FIG. 1, the pile rotary press machine 10 installed on the first ground 101 is moved to a predetermined second ground 102, An example of a method for re-installing a pile rotary press-fitting machine installed on the second ground will be described with reference to FIG.

  FIG. 9 shows a case where the pile rotary press 10 installed on the first ground 101 as shown in FIG. 1 is re-installed on the predetermined second ground 102. There is a viaduct above both grounds 101 and 102, and existing pillar structures ST that support the viaduct are erected next to each other between the grounds 101 and 102 in sequence.

  The rotary press-fitting machine 10 including the ruler member 6 has a generally rectangular outline when viewed from above, and has a length α ′ in the same direction as the direction X in which the ruler member 6 extends (X of the pile rotary press-fitting machine 10 main body X The length slightly longer than the length α in the direction) is longer than the length β in the direction Y across the direction X in which the ruler member 6 extends (same as the length in the Y direction of the pile rotary presser 10 main body).

  As shown in FIG. 9, the distance L between the existing structures ST is a length in the same direction as the sequential arrangement direction of the structures of the pile rotary press 10 before changing direction installed on the first ground 101 (FIG. 9). Is shorter than the length β in the direction crossing the sequential alignment direction of the column structures.

Therefore, the pile rotary press-fitting machine 10 is turned about 90 degrees together with the ruler member 6 so that it can be re-installed on the second ground 102.
First, the pile rotary press 10 is turned in the ground 101 by the method shown in FIGS.

  The temporary connection of the ruler member 6 by the connector 9 is released from the pile rotary press-fitting machine 10 changed in direction as described above, and the rail member R is further directed to the second ground 102 after the ruler member 6 and further to the rail member R. Subsequently, the second ruler member 60 is installed on the second ground 102.

  Then, the rotary press-fitting machine 10 is moved from the ruler member 6 along the rail member R onto the second ruler member 60 and placed on the second ground 102. Thus, the rotary press-fitting machine 10 can be easily re-installed on the ground 102, and can be used for pile burial work there, for example, foundation pile burial work for building earthquake-proof reinforcement columns. The second ruler member 60 may be laid by moving the ruler member 6 after the rotary presser 10 has moved onto the rail member R.

  Alternatively, if necessary, as shown by a solid line in FIG. 9, the pile rotary presser 10 is further changed in direction by, for example, about 90 degrees and installed on the second ground 102, and pile burying work there, for example, for seismic reinforcement It can also be used for foundation pile burial work for pillar construction.

  When the pile rotary press-fitting machine 10 is further turned, for example, by approximately 90 degrees on the second ground 102, and re-installed on the second ground 102, the pile embedding work can be performed on the first ground 101. What is necessary is just to implement the process similar to the case of direction change.

  In the method for changing the direction of the pile rotary press machine described above, as a support means of the pile rotary press machine for changing the direction of the pile rotary press machine 10, a support body such as a support column 8 and a support body 7 supporting the support pillar 8 (see FIG. 7, see FIG. 8).

However, the support means of the pile rotary press is not limited to these. For example, as shown in FIG.
The support means is an auxiliary member that is removably added to the head of the pile P in order to press-fill the pile P to be press-embedded in the local board 100 by the pile rotary press-fit machine 10 (at the pile construction site). 90, a member commonly called “Yatko”.

  In the illustrated example, the auxiliary member 90 is a cylindrical member having an outer diameter substantially the same as that of the pile P, in which a small-diameter portion that can be fitted into the head of the pile P is connected to the lower end. The protrusion P formed on the inner peripheral surface of the pile head is inserted into the inverted L-shaped groove g formed on the small-diameter wall, and the pile P is press-fitted to a predetermined depth in a state where the protrusion P is rotated and engaged with the groove depth. Used to bury.

When this auxiliary member 90 is adopted, the step of press-fitting and embedding the pile P to a predetermined depth using the auxiliary member 90 also serves as the support means installation step.

  Further, the support means of the rotary press-fitting machine may be the head Ph of the existing pile P as shown in FIG. In the example shown in FIG. 11, the pile rotary press machine is slightly different from the pile rotary press machine 10 described so far. That is, in the pile rotary press 10, the elevating frame 3 is used as the elevating frame 30, and the rotary drive device 4 and the pile gripping mechanism 5 are supported by the arm 301 extending downward of the elevating frame 30.

  In the case of this pile rotary press-fitting machine, as shown in FIG. 11, the head Ph of the existing pile P is gripped by the pile gripping mechanism 5 supported by the lifting frame 30 slightly raised with respect to the frame 1. In this state, the frame 1 can be relatively raised with the pile head Ph as a support, and then the rotary presser 4 can be turned by rotating the lifting frame 30 and the frame 1 relatively with the rotation drive device 4. it can. In this case, the pile insertion process of the pile P by the pile rotary press machine also serves as the support means installation process.

  The present invention includes a base frame, an elevating drive device, an elevating frame that can be moved up and down with respect to the base frame by the elevating drive device, a rotary drive device mounted on the elevating frame, and a rotary drive device that can be driven to rotate relative to the elevating frame The present invention can be used to provide a simple direction changing method of a pile rotary presser including a simple pile gripping mechanism and a pile rotary presser re-installation method using this method.

DESCRIPTION OF SYMBOLS 10 Pile rotary press-fit machine 1 Underframe 11 Wheel 2 Lift drive device 21 Piston cylinder device 3, 30 Lift frame 301 Arm 4 of lift frame 30 Rotation drive device 41 Ring gear 42 Pinion gear 43 Motor 5 Pile gripping mechanism 51 Chuck part 52 Piston cylinder device 6, 60 Ruler member 7 Support device 71 Plate member 72 Leveling device 73 Column fitting member 8 Support column 81 Projection member
9 Connecting tool P Pile PT Top CN of existing pile Connection tool Ph Head 90 of existing pile Auxiliary member (Yatco)
g Inverted L-shaped groove f Protrusion 100 Local board 101 First ground 102 Second ground R Rail member

Claims (7)

A base frame, a lift drive device, a lift frame that can be lifted and lowered with respect to the stand frame by the lift drive device, a rotation drive device mounted on the lift frame, and a rotation drive device that rotates with respect to the lift frame Including a drivable pile gripping mechanism, wherein the underframe is installed on a ruler member installed on a pile embedding target ground, and the embedding target pile built up and down through the pile gripping mechanism is A pile rotary press machine capable of press-fitting the pile into the ground by driving the lift frame vertically by the lift driving device while holding the pile gripping mechanism and rotating the pile gripping mechanism with the rotary drive device. It is a method of changing the direction of a pile rotary press that causes the rotary press to change direction from a state where the rotary press is installed on the local board via the ruler member,
A frame temporary connection step of temporarily connecting the ruler member to the frame so that the pile rotary press-fitting machine can be moved up and down together with the ruler member;
A support means installation step of installing a support means of the pile rotary presser in a portion below the pile gripping mechanism of the local board ;
Wherein the elevator frame the elevator drive unit pulling raised with respect to the pile gripping mechanism each of the underframe, the by gripping the supporting means placed in the supporting means mounting step該杭gripping mechanism, then the support A frame lifting step for lifting the frame from the local board together with the ruler member connected in the frame temporary connection step with the lifting drive device as a support, and
In the state where the frame is pulled up from the local board in the frame lifting step, the lifting frame is rotated relative to the pile gripping mechanism holding the support means by the rotary drive device. A direction changing step of turning the pile rotary press-fitting machine in a predetermined direction and changing the direction,
After the direction changing step, including a frame re-installation step of lowering the frame with the ruler member together with the ruler member by the elevating drive device and setting the frame on the local board via the ruler member. A method of changing the direction of a pile rotary press.   The method for changing the direction of a pile rotary presser according to claim 1, wherein the support means includes a support column built through the pile gripping mechanism and a support body that supports the support column from below. The pile rotary press-fit machine according to claim 2, wherein the support body includes a plate-like member laid on the part of the local board , and a support-pillar holding device provided on the plate-like member for holding the support pillar. Redirection method. The support means is an auxiliary member that is removably added to the head of the pile to be buried in order to press-fill and bury the pile to be buried in the local board by the pile rotary press machine to a predetermined depth. The method of turning a pile rotary presser according to claim 1, wherein the step of press-fitting and embedding the pile to be buried to a predetermined depth using the auxiliary member also serves as the support means installation step. The support means is a head of an embedding target pile that has already been press-embedded in the local board by the pile rotary press-in machine, and the press-in embedding process of the pile to be embedded by the pile rotary press-in machine includes the support means installing process. The direction changing method of the pile rotary press machine according to claim 1, which also serves as a pile. A base frame, a lift drive device, a lift frame that can be lifted and lowered with respect to the stand frame by the lift drive device, a rotation drive device mounted on the lift frame, and a rotation drive device that rotates with respect to the lift frame Including a drivable pile gripping mechanism, wherein the underframe is installed on a ruler member installed on a pile embedding target ground, and the embedding target pile built up and down through the pile gripping mechanism is A pile rotary press machine capable of press-fitting the pile into the ground by driving the lift frame vertically by the lift driving device while holding the pile gripping mechanism and rotating the pile gripping mechanism with the rotary drive device. The rotary press-fitting machine is installed on the second ground by moving the rotary press-fitting machine from the first ground, which is the local board, to the next second ground through the ruler member. An installation method,
The direction of the pile rotary presser according to any one of claims 1 to 5, prior to moving the pile rotary presser installed on the first ground onto the second ground via the ruler member. A first direction changing step of changing the direction of the pile rotary press-fit machine to a direction suitable for movement to the second ground by a conversion method;
A step of releasing the temporary connection of the ruler member from the pile rotary press machine changed in direction by the first direction changing step ;
A step of installing a rail member toward the second ground following the ruler member;
A step of installing a second ruler member on the second ground following the rail member;
Moving the pile rotary press machine from the ruler member along the rail member toward the second ground;
A pile rotary presser re-installation method comprising the step of moving the pile rotary presser from the rail member onto the second ruler member and placing it on the second ground.   There is an existing structure adjacent to each other with a gap between the first ground and the second ground, and the distance between the adjacent existing structures is the first ground before the first direction changing step. Although the pile rotary press machine installed and the ruler member temporarily connected to the pile rotary press machine are combined, it is shorter than the length in the same direction as the sequential arrangement direction of the existing structures, and the sequential arrangement direction of the existing structures The pile rotary presser re-installation method of Claim 6 in the case where it is longer than the length of the direction which crosses.