JPH0682132U - Rotating buried pile holding device - Google Patents

Abstract

(57) [Summary] [Purpose] A pile that is rotationally buried in a pile insertion hole and has its lower end inserted at a required position of the root consolidation part is reliably maintained in that state and held in a suspended state for the required time. [Structure] A pile insertion rod 2 and a support 5 are provided. The pile insertion rod 2 chucks the head 7 of the pile 6 at the lower end of the rod body 10. The rod body 10 is rotated by the auger motor 12, and the pile 6 is rotationally buried in the pile insertion hole 16. The support 5 supports the rod body 10 by being installed on the ground via the pedestal 3 and the support 4 after the lower end portion 25 of the pile is inserted into the root consolidation portion 26 at a required position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, after the pile is rotationally buried in the pile insertion hole formed in the construction ground and the lower end of the pile is inserted at the required position of the consolidation part, until the pile head is fixed at the predetermined position, The present invention relates to a rotary buried pile holding device for holding a pile in a suspended state.

[0002]

[Prior art]

 When piles are rotationally buried in the pile insertion hole formed in the construction ground, the pile head is fixed in place after the pile lower end is inserted at the required position of the root consolidation part built at the lower end of the pile insertion hole. It is necessary to hold the pile in the suspended state until it becomes (that is, until the lower end of the pile is fixed to the root consolidation part as required).

Conventionally, this holding has been performed using a heavy machine a shown in FIG. The outline of the structure of the heavy equipment and the method for holding the piles by using it will be described below.

That is, the heavy equipment a is provided with an auger motor d which is suspended from a wire c and moves up and down on a pillar member b having a high height which is erected on the ground, and the pile shaft is inserted into the rotary shaft of the auger motor d. It is possible to selectively connect a drilling rod for excavating an entry hole or a pile inserting rod for rotating and burying a pile.By using both rods properly, it is possible to perform both the work for excavating a pile insertion hole and the work for burying a rotary pile. It is possible.

The pile insertion rod e has an upper end connected to the auger motor d and a lower end provided with a cap g for chucking the head f1 of the pile f. As shown in FIG. 20, the cap g has a cylindrical shape with a downward opening into which the pile head f1 can be inserted, and the peripheral surface of the cap g is connected to the upper end of the vertical opening h and the horizontal opening i. The provided L-shaped locking opening j is provided.

By inserting the pile head into the cap g, the locking pin k protruding outward at the upper end of the pile head f1 is positioned at the upper end of the vertical opening h, and then the cap g is fixed. The rotation F1 brings the locking pin k into engagement with the lateral opening i so that the pile head portion f1 is chucked. On the contrary, when the cap g is rotated in the reverse direction F2, the locking pin k is disengaged from the lateral opening i, and the chucking state of the pile head f1 is released.

[0007] However, after the pile head portion f1 is chucked to the cap g at the lower end of the pile insertion rod connected to the auger motor d, and the auger motor d is lowered while rotating in the forward rotation F1, the pile f is rotatably embedded and finally Therefore, the pile lower end portion f2 is inserted into a required position of the root consolidation portion m.

After that, for the purpose of fixing the lower end portion f2 of the pile to the consolidation portion m, the pile was held in the suspended state for a required time by a heavy machine.

[0009]

[Problems to be solved by the device]

 However, when the piles are held by using the heavy equipment in this way, there is a problem that the accuracy of burying the piles is poor, and the heavy equipment cannot be efficiently used. That is,

Problems concerning construction accuracy The time for holding the pile in which the lower end of the pile is inserted in the root consolidation part until the pile head is fixed in the required position must be set according to the ground condition. I won't. However, in the past, since the heavy machinery itself used for excavating the pile insertion hole and rotary burying of the pile was used for holding the pile, the operating cost of the heavy machinery is high per hour, so the work efficiency of the heavy machinery is taken into consideration. The time is usually set to about 20 minutes (the time when it was empirically thought that tentative pile fixing could be achieved), and after this time, the cap was removed from the pile head by the reverse rotation of the auger motor. It was Therefore, depending on the ground condition, there were cases where piles could be firmly anchored, but the piles often settled later due to their own weight, and the pile head positions of the buried piles were not accurately aligned. There were many cases.

By the way, when the cap that chucks the pile head is exposed to the ground in the final buried state of the pile, the chuck release timing can be determined by visually observing the position of the locking pin in the lateral opening. I could guess. That is, as shown in FIG. 20, if the locking pin k was in contact with the lower edge n of the lateral opening, it could be inferred that the pile was hung on the cap and the fixing was incomplete. On the contrary, if the locking pin k is in contact with the upper edge o of the lateral opening as shown by the alternate long and short dash line in FIG. 20, the pile is not in the state of being hung on the cap and therefore the chuck is released. Even so, I was able to figure out if there was no problem.

However, when the cap is hidden in the pile insertion hole as shown in FIG. 20 in the final buried state of the pile, it is not possible to even visually observe the position of the locking pin in the lateral opening portion, which is completely inconceivable. Had to decide when to release the chuck. Therefore, when the cap was pulled up with the intention of releasing the chuck, the stakes could be pulled up in the worst case.

If the pile head position is not set as designed, after cutting the ground, piles higher than the design need to be cut, and conversely, piles lower than the design are reinforced with reinforcing bars to make expensive footing. There was a significant uneconomical situation such as having to build it.

Problems in Utilization Efficiency of Heavy Equipment As described above, it took a relatively long time of about 20 minutes to hold a pile by a heavy equipment. If it can be utilized for excavation and rotary burying of piles, the utilization efficiency of heavy equipment (including its operator) can be improved and the construction cost can be reduced accordingly. There was a lot of room for improvement in the construction of piles in terms of construction cost.

An object of the present invention is to provide a holding device for a rotary buried pile that can solve such problems.

[0016]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention employs the following means.

That is, a holding device for a rotary buried pile (hereinafter referred to as a holding device) according to the present invention chucks a head portion 7 of a pile 6 on a lower end of a rod body 10 which is detachably connected to an auger motor of a heavy machine and hangs down. A pile insertion rod 2 which has a chuck device 9 for rotating around a vertical axis, and a support 5 which is installed on the ground directly or through another member to support the pile insertion rod 2. The rod main body 10 of the pile insertion rod 2 is provided with a locking concave portion 11 at least at a facing portion of a peripheral surface portion thereof, and the support tool 5 has a pair of support pieces 22, 22 for sandwiching the rod main body 10. Further, the support piece 22 is provided with a support portion 23 which is inserted into the locking recess 11 and supports the rod body 10.

In the holding device, the support 5 may be configured as follows. As an example thereof, a support portion 23 for supporting the rod body 10 by being inserted into the locking recess 11 on the inner surface side of the wall portion 30 of the tubular enclosure 29 surrounding the rod body 10 in the circumferential direction. Can be mentioned. As another example, the rod body 10 is supported by being inserted into the locking recess 11 on the inner surface side of the wall portion 30 of the U-shaped or U-shaped enclosure 29 that surrounds the rod body 10. It is possible to cite an example in which the supporting portion 23 that supports the projection is provided.

In the case of constructing the support tool with the enclosure 29 as described above, the support tool 5 is preferably configured as follows. As an example thereof, one end portions of the half-split tube portions 31 and 32 are pivotally attached to each other so that they can be opened and closed, and the other end portions of the half-split tube portions 31 and 32 are detachably connected to each other, whereby the rod body 10 is An enclosing body 29 through which the rod body 10 is inserted is formed, and a supporting portion 23 that is inserted into the locking recess 11 and supports the rod body 10 is provided on the inner surface side of the wall portion 30 of the enclosing body 29. be able to. As another example, the rod body 10 has a pair of half-split cylinders 69, 69 having fixing pieces 70, 71 at both ends, and the fixing pieces at both ends are detachably connected to each other. Is formed so as to allow the rod body 10 to be inserted therethrough, and a support portion 23, which is inserted into the locking recess 11 and supports the rod body 10, is projectingly provided on the inner surface side of the wall portion 30 of the enclosure 29. You can list the ones you have.

In this holding device, the locking recess 11 is preferably formed in an annular shape that is continuous in the circumferential direction. The support 5 may be installed on the ground via the support 4. In this case, the support base 4 has a pair of support pieces 21 and 21 placed on the ground with the rod body 10 sandwiched therebetween, and the support piece 5 is placed on the support pieces 21 and 21. Suru Further, the support 5 may be installed on the ground via the pedestal 3 mounted on the ground and the support base 4 mounted on the pedestal 3. In this case, the pedestal 3 is assumed to have a pair of pedestal pieces 15, 15 placed around the opening end 17 of the pile insertion hole 16 provided in the ground, and the support pedestal 4 Has a pair of support pieces 21 and 21 placed on the pedestal pieces 15 and 15 with the rod body 10 interposed therebetween, and the support 5 is placed on the support pieces 21 and 21.

In the above description, the support pieces 22, 22 may be integrated at the ends or in the middle, or may be independent. This also applies to the support pieces 21 and 21 and the pedestal pieces 15 and 15.

[0022]

[Action]

 However, a pile in which the pile is rotationally buried in the pile insertion hole formed in the construction ground and the lower end portion 25 of the pile is inserted at the required position of the root consolidation portion 26 (one pile or a pile in which the required number is connected at its end portion). 6) is held in that state by using the holding device according to the present invention, the support recess 23 of the support 5 installed on the ground directly or through another member is used to lock the recess 11 of the rod body 10. To engage. The holding mode is as follows.

When the support 5 has a pair of support pieces 22 and 22 that sandwich the rod body 10, the support portions 23 and 23 are inserted into the locking recess 11 on the opposite side of the rod body 10 to support the support body. The upper portion 11a of the locking recess is supported by the portion 23, thereby holding the pile in a suspended state.

When the support 5 has a tubular enclosure 29 surrounding the rod body or a U-shaped or U-shaped enclosure 29, the wall of the enclosure 29 is located on the inner surface side. The projecting support portion 23 is inserted into the locking recess 11, and the support portion 23 supports the upper surface 11a of the locking recess, thereby holding the pile in a suspended state.

When the support 5 is installed on the ground via the support base 4, the support pieces 21, 21 are placed on the ground with the rod body 10 sandwiched therebetween, and the support pieces 22, Place the support 5 on 22. When the support 5 is installed on the ground via the pedestal 3 and the support 4, the pedestal 4 is mounted such that the pedestal pieces 15 and 15 sandwich the open end of the pile insertion hole 16. The support pieces 22, 22 of the support base 4 are placed on the base pieces 15, 15 with the rod body 10 sandwiched therebetween. Then, the support tool 5 is placed on the support pieces 22 and 22. After holding the pile in this way, the pile insertion rod 2 is separated from the auger motor 12.

After the pile is held for a sufficient time and the head portion 7 of the pile 6 is fixed at a predetermined position, the engagement between the support 5 and the locking recess 11 is released, and the support 5 is removed. . If the support base 4 and the base 3 are used, these are also removed. The opening / closing type support 5 is detached by releasing the connected state of the other end. For example, the connecting shaft 52 shown in FIG. 7 is extracted. Further, the detachable support 5 is detached by releasing the connection between the fixed pieces at both ends. For example, the bolt 75 shown in FIG. 10 is pulled out.

[0027]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 3, the holding device 1 according to the present invention comprises a pile insertion rod 2, a pedestal 3, a support 4, and a support 5.

The pile insertion rod 2 has a chucking device (in this embodiment, a cap having the same structure as shown in FIG. 19) 9 for chucking the head 7 of the pile 6 at the lower end. The rod body 10 is provided with a circumferentially continuous annular recess 11 at a predetermined distance (for example, a distance of about 10 cm) in the vertical direction. It is detachably connected to the auger motor 12 and is rotatable about a vertical axis.

The pedestal 3 comprises pedestal pieces 15 and 15 projecting from both ends of one side surface of the rectangular frame 13 in parallel, and the pedestal pieces 15 and 15 are opened in a pile insertion hole 16 provided in the ground. It is placed around the open end with the end 17 being sandwiched.

The support base 4 includes support pieces 21 and 21 projecting from both ends of one side surface of the rectangular frame 20 in parallel, and with the support pieces 21 and 21 sandwiching the pile insertion rod 2, The base pieces 15 and 15 are supported at the base end portion and the tip end portion.

The support 5 has a U-shape having a pair of support pieces 22 and 22 having a wedge shape facing each other. The support pieces 22 and 22 support the rod body 10 in a sandwiched state. The half-supporting part 23 (the inner part of the middle of the supporting part) is inserted into the annular locking recess 11.

However, a pile in which the pile is rotationally buried in the pile insertion hole 16 formed in the construction ground and the pile lower end portion 25 is inserted at a required position of the root consolidation portion 26 (one pile or a required number of the end portions is used). In order to hold the piles 6 (FIG. 1) connected with each other in that state, first mount the pedestal 3 on the ground by sandwiching the open end 17 of the pile insertion hole 16 between the pedestal pieces 15 and 15. It

After that, the support pieces 21 and 21 of the comb-shaped support base 4 are placed in a state in which the rod main body 10 is sandwiched and substantially orthogonal to the pedestal pieces 15 and 15 or in a slightly slanted state, and a portion near the base end is provided. And the pedestal pieces 15 and 15 are mounted on the pedestal pieces 15 and 15.

After that, the support portions 23 and 23 of the support pieces 22 and 22 are pushed into the opposing portions of the engagement recess 11 while sandwiching the groove bottom of the engagement recess 11, and the base end of the support piece is pushed. The leaning portion and the tip portion are supported by the supporting pieces 21 and 21 facing each other. As a result, the upper surface 11a of the locking recess 11 is supported by the support 5 installed on the ground via the support 4 and the pedestal 3, and the pile is held in a completely fixed state.

FIG. 4 illustrates the case where the support pieces 22 and 22 are independent. In this case, in order to prevent the support piece 22 in engagement with the locking recess 11 from coming off, it is preferable to fix the stop piece 27 to the support piece 21.

FIG. 5 shows another embodiment of the present invention, in which the support portion 23, which is inserted into the locking recess 11 and supports the rod body 10, is provided on the inner surface side of the wall portion 30 of the enclosure 29. It is equipped with a support tool 5. The supporting tool 5 is configured as, for example, an open / close type shown in FIGS. 6 to 8 or a separable type shown in FIGS. 9 to 10.

In FIGS. 6 to 8, the opening / closing type support tool 5 pivotally connects one end of the half-split tube portions 31 and 32 to each other so as to be able to open and close, and the other end of the half-split tube portions 31 and 32. Can be detachably connected to each other, and in the connected state, an enclosure 29 into which the rod body 10 can be inserted is configured.

On the other hand, the half-split cylinder part 31 is provided with flange parts 35 and 36 projecting in the circumferential direction at the upper and lower end parts of the outer surface part of the half-split arc piece 33. The other half-divided cylindrical portion 32 also has a similar structure, and is provided with flange portions 39 and 40 projecting in the circumferential direction in proximity to the upper and lower ends of the outer surface portion of the half-divided arc piece 37.

Then, in a state in which the one end side portions 41 and 42 of the upper and lower flange portions of the one half-split tube portion 31 overlap the outer sides of the one end side portions 43 and 45 of the upper and lower flange portions of the other half split tube portion 32. , One end portions of the two half-divided cylindrical portions 31 and 32 are fitted to each other, and the upper and lower overlapping portions 46 and 47 are opened and closed by a pivot 49 which is inserted through a shaft hole having a common hole center. Possibly pivoted.

Further, the other end portions 50 and 51 of the upper and lower flange portions of the one half-split cylinder portion 31 overlap the outsides of the other end portion portions 53 and 55 of the upper and lower flange portions of the other half split cylinder portion 32. In this state, the other end portions of the two half-split tube portions 31 and 32 are fitted to each other, and the handle 63 is inserted into the insertion holes 59, 60, 61 and 62 having the common hole centers provided in the upper and lower overlapping portions 56 and 57. By connecting the connecting shaft 65 having the above-mentioned shape, the other end portions of the half-split tube portions 31 and 32 are detachably connected to each other (FIG. 6), whereby the rod main body 10 can be inserted. A body 29 is constructed.

Further, three support bolts 66, 66, 66 are screwed into the upper and lower central portions (upper and lower central portions of the half-circular arc pieces) of the peripheral surface portion of the enclosure 29 at an angular pitch of 120 degrees. There is. In the present embodiment, one bearing bolt 66 is screwed onto the one half-split cylinder portion 31, and two bearing bolts 66, 66 are screwed onto the other half-split cylinder portion 32. ing.

However, after the half-split tube portions 31 and 32 opened as shown in FIG. 7 are closed so as to surround the rod body 10 in the circumferential direction as shown in FIG. 6 and FIG. When the enclosure 29 is formed by connecting the other ends of the split tube portion with the connecting shaft 65, the inner surface of the wall 30 of the enclosure 29 is inserted into the locking recess 11 provided in the rod body. As a result, the supporting portions 23, 23, 23 for supporting the rod main body 10 (the end portions of the supporting bolts) 23, 23, 23 are in a protruding state, and, for example, as shown in FIG. It is supported and the pile is held in a suspended state.

9 to 10 illustrate the separable supporting member 5, and a pair of half-split cylindrical portions 72 in which fixing pieces 70 and 71 are outwardly bent at both ends of a half-split arc piece 69. , 73, and the fixed piece portions 70, 70, 71, 71 are brought into contact with the curved concave surfaces 74, 74 inside, and the common hole centers provided in the fixed piece portions in the corresponding contact state. By inserting the bolt 75 into the insertion hole and screwing the nut 76 into the insertion hole to tighten the bolt 75, the enclosure 29 into which the rod body 10 can be inserted can be configured.

One bearing bolt 66 is screwed into the central portion of the peripheral surface portion of the one half-divided cylinder portion 72, and both ends of the upper and lower central portions of the peripheral surface portion of the other half-divided cylinder portion 73 are offset. The support bolts 66, 66 are respectively screwed into the positions of, and the three support bolts 66, 66, 66 are screwed into the wall portion 30 of the enclosure 29 at an angle pitch of 120 degrees. It has become. The end portion of the bearing bolt protruding toward the inner surface of the wall portion is a bearing portion 23. For example, as shown in FIG. 5, the bearing portion 23 is inserted into the locking recess 11 and the upper surface portion 11a thereof is supported. Then, the pile is held in a suspended state. 9 to 10, the support 5 is placed on a pair of H-shaped support pieces 21 and 21 installed on the ground with the rod body interposed therebetween.

FIG. 11 shows that the wall portion 30 of the enclosure 29 configured as a tubular unit is inserted into the locking recess 11 provided in the rod body 10 and the upper surface 11a of the locking recess is provided, for example, as shown in FIG. An example of the support tool 5 in which the support portion 23 that supports the above is provided in a protruding manner. Note that, in FIG. 11, the support portion 23 is formed by a portion of the support bolt 66 on the front end side.

FIG. 12 shows an upper surface of a locking recess 11 which is inserted into a locking recess 11 provided in the rod main body 10 in a wall 30 of a U-shaped or U-shaped surrounding body 29 surrounding the rod main body 10. The support member 5 in which the support portions 23, 23 for supporting the portion 11a as shown in FIG. 5, for example, are provided so as to face each other will be described in the use state. In FIG. 12, one of the support portions 23 is formed as a protrusion and the other is formed as a portion on the tip side of the support bolt 66.

In FIG. 13, an independent concave portion is provided on the peripheral surface portion of the rod body 10, and this concave portion is used as a locking concave portion 11. For example, an opening / closing type enclosure 29 shown in FIG. 14 is used to hold the pile in a suspended state. A holding device is shown. The fixed support portions 23, 23 projecting from the inner surface of the openable / closable enclosure 29 are inserted into the locking recess 11 to support the upper surface 11a of the locking recess.

[0048]

[Effect of device]

  Since the holding device according to the present invention is configured as described above, by mounting the support tool for ground installation on the rod body and supporting the upper surface of the locking recess by the support part, the lower end of the pile is rooted. It is possible to reliably maintain and maintain the state of the pile inserted in the required position of the solidifying portion. Therefore, the position of the pile head of the buried pile can be accurately set as designed, and the buried construction management of the pile can be performed reliably.

Further, since the pile inserting rod is securely held through the support, the pile inserting rod in the held state can be separated from the auger motor. Therefore, the heavy equipment can continue the original work such as excavation of pile insertion holes and rotary burying of piles, improving the utilization efficiency of the heavy equipment and improving the construction efficiency and the construction cost. It can be expected.

In the holding device according to the present invention, the engagement portion with the support portion is formed by recessing the peripheral surface portion of the rod body. Therefore, as shown in FIGS. 15 to 16, the guide cylinder 80 is attached to the holding shafts 77, 77 arranged on both sides of the support member of the heavy machine through the holding arms 79, 79, and the rod body 10 is attached to the guide cylinder 80. When the piles are inserted into the piles in a substantially close contact state to bury the piles in rotation, the steadying effect of the guide cylinder 80 is exerted until the burying of the piles is completed, and the piles can be rotatably buried in a stable manner. .

When the rod body 10 is lowered while being guided by the guide cylinder 80 in this way, as shown in FIG. 17, it is supported by projecting an annular collar 81 on the peripheral surface portion of the rod body. If the upper part of the ring-shaped collar 81 is disengaged from the lower end 82 of the guide cylinder 80 due to the progress of the rotary burying of the pile, as shown in FIG. A large gap G is formed between the inner surface 83 of the rod and the rod body 10, and thereafter, there arises a problem that the steadying action of the guide cylinder cannot be expected. According to the present invention, such a problem is solved as described above.

Further, in the holding device according to the present invention, since the engaging portion with the support portion is formed by recessing the peripheral surface portion of the rod body, the space between the support pieces and the space between the support pieces are relatively small. Lightweight support and support can be used. As shown in FIG. 17, if the engaging portion with the support piece is formed by projecting an annular collar 81 on the peripheral surface portion of the rod body 10, if the diameter of the rod body is the same, The spacing between the support pieces and the spacing between the support pieces have to be set larger than those of the present invention, so that the support tool and the support stand are heavy and the processing cost is high. It is disadvantageous compared to the present invention.

[Brief description of drawings]

FIG. 1 is an explanatory view illustrating a holding state of a pile by a holding device according to the present invention.

FIG. 2 is a perspective view illustrating a holding device.

FIG. 3 is an explanatory diagram for explaining an enlarged state of holding a pile by a holding device.

FIG. 4 is an explanatory diagram illustrating a holding state of a pile by independent left and right bearing pieces.

FIG. 5 is an explanatory view illustrating a holding state of the pile when a support tool in which a support portion is provided so as to project on the inner surface side of the wall of the enclosure is used.

FIG. 6 is a perspective view showing an opening / closing type holder.

FIG. 7 is a perspective view showing a state in which an opening / closing type holder is opened.

FIG. 8 is a plan view illustrating a state in which the pressing bolt is tightened and the enclosure and the rod body are integrated when an opening / closing holder is used.

FIG. 9 is a perspective view illustrating a separation-type holder.

FIG. 10 is a plan view showing a state in which the enclosure and the rod main body are integrated by tightening the pressing bolt when the separation-type holder is used.

FIG. 11 is a perspective view illustrating a holder including an enclosure configured as a tubular integral body.

FIG. 12 is a perspective view illustrating a holder including a U-shaped enclosure.

FIG. 13 is an explanatory view for explaining a holding state of the pile by the holding device when the pile inserting rod in which the locking recess is provided in the facing portion of the peripheral surface portion of the rod body is used.

FIG. 14 is an explanatory diagram illustrating an example of a support tool that constitutes the holding device in FIG.

FIG. 15 is an explanatory diagram illustrating a state in which the rod body is steady by a guide tube.

FIG. 16 is an explanatory diagram illustrating a state where the rod body is inserted into the guide cylinder in a substantially close contact manner.

FIG. 17 is an explanatory diagram illustrating a case where an engagement portion with a support portion is formed by projecting an annular flange on a peripheral surface portion of a rod body.

FIG. 18 is an explanatory diagram for explaining a steady rest defective state due to the guide cylinder in the case where an engagement portion with a support portion is formed by projecting an annular collar on the peripheral surface portion of the rod body.

FIG. 19 is an explanatory diagram illustrating a conventional method for holding a pile by a heavy machine.

FIG. 20 is an explanatory diagram illustrating a chuck portion of a pile in conventional pile holding.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Holding device 2 Pile insertion rod 3 Pedestal 4 Support base 5 Supporting tool 6 Pile 7 Pile head 9 Chuck device 10 Rod body 11 Locking recess 15 Pedestal piece 16 Pile insertion hole 17 Opening end 21 Support piece 23 Supporting part 29 Surrounding Body 30 Wall part 31 Half-split cylinder part 32 Half-split cylinder part 69 Half-split cylinder part 70 Fixed piece part 71 Fixed piece part

Claims (8)

[Scope of utility model registration request] 1. A pile inserter having a chuck device 9 for chucking a head portion 7 of a pile 6 at a lower end of a rod main body 10 which is detachably connected to an auger motor of a heavy machine and which is rotated around a vertical axis. It comprises a rod 2 and a support 5 installed directly or through another member on the ground to support the pile insertion rod 2, and the rod body 10 of the pile insertion rod 2 has at least opposing portions of its peripheral surface portion. A locking recess 11 is provided in the support member 5, and the support member 5 includes a pair of support pieces 2 sandwiching the rod body 10.
2 and 22, and the support piece 22 is provided with a support portion 23 that is inserted into the locking recess 11 and supports the rod body 10. . 2. A pile inserter having a chuck device 9 for chucking a head portion 7 of a pile 6 at a lower end of a rod main body 10 which is detachably connected to an auger motor of a heavy machine and hangs down, and which is rotated around a vertical axis. The rod main body 10 of the pile insertion rod 2 is provided with a rod 2 and a support 5 installed on the ground directly or through another member to support the pile insertion rod 2. 11 is provided as a recess, and the support member 5 has the locking recess 11 on the inner surface side of a wall 30 of a cylindrical enclosure 29 that surrounds the rod body 10 in the circumferential direction.
Support part 2 for supporting the rod body 10 by being inserted into the
3. A holding device for a rotary buried pile, wherein 3 is provided in a protruding manner. 3. A pile inserter having a chuck device 9 for chucking a head portion 7 of a pile 6 at a lower end of a rod main body 10 which is detachably connected to an auger motor of a heavy machine and hangs down, and which is rotated around a vertical axis. The rod main body 10 of the pile insertion rod 2 is provided with a rod 2 and a support 5 installed on the ground directly or through another member to support the pile insertion rod 2. 11, the support 5 is inserted into the locking recess 11 on the inner surface side of the wall 30 of the U-shaped or U-shaped enclosure 29 that surrounds the rod body 10. A holding device for a rotary buried pile, characterized in that a supporting portion 23 for supporting the rod body 10 is provided in a protruding manner. 4. A pile inserter having a chuck device 9 for chucking a head portion 7 of a pile 6 at a lower end of a rod main body 10 which is detachably connected to an auger motor of a heavy machine and hangs down, and which is rotated around a vertical axis. The rod main body 10 of the pile insertion rod 2 is provided with a rod 2 and a support 5 installed on the ground directly or through another member to support the pile insertion rod 2. 11, the supporting member 5 is pivotally mounted so that one end portions of the half-split tube portions 31 and 32 can be opened and closed, and the other end portions of the half-split tube portions 31 and 32 can be detachably attached to each other. By connecting them, an enclosure 29 can be formed into which the rod body 10 can be inserted, and the enclosure 29 can be formed.
1. A holding device for a rotary buried pile, characterized in that a supporting portion 23, which is inserted into the locking concave portion 11 and supports the rod body 10, is projectingly provided on the inner surface side of the wall portion 30. 5. A pile insertion device having a chuck device 9 for chucking a head portion 7 of a pile 6 at the lower end of a rod body 10 which is detachably connected to an auger motor of a heavy machine and hangs down, and which is rotated around a vertical axis. The rod main body 10 of the pile insertion rod 2 is provided with a rod 2 and a support 5 installed on the ground directly or through another member to support the pile insertion rod 2. 11, the supporting member 5 has a pair of half-split cylinders 69, 69 having fixing pieces 70, 71 at both ends, and the fixing pieces at both ends are detachably connected to each other. As a result, the enclosure 29 into which the rod body 10 can be inserted can be formed, and the inner surface side of the wall portion 30 of the enclosure 29 is a bearing portion that is inserted into the locking recess 11 to support the rod body 10. Rotational padding characterized by protruding 23 Stake of the holding device. 6. The rotary buried pile holding device according to claim 1, wherein the locking recess 11 is formed in an annular shape continuous in the circumferential direction. 7. The support 5 is installed on the ground via a support base 4, and the support base 4 comprises a rod body 10
A pair of support pieces 21 and 2 which are placed on the ground while sandwiching
7. The rotary buried pile holding device according to claim 1, wherein the supporting tool 5 is mounted on the supporting pieces 21 and 21. 8. The support 5 is installed on the ground through a pedestal 3 mounted on the ground and a support base 4 mounted on the pedestal 3, and the pedestal 3 is provided on the ground. A pile insertion hole 1
6 has a pair of pedestal pieces 15 and 15 placed around the open end 17 of the base 6, and the support base 4 is placed on the pedestal pieces 15 and 15 with the rod body 10 interposed therebetween. Has a pair of support pieces 21 and 21, and the support 5 has the support pieces 21 and 21.
The device for holding a rotary buried pile according to claim 1, which is mounted on 21.