JP2007135293A - Pile standing and driving jig, and method for standing pile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an Ns pile standing and driving jig and an Ns pile standing method, wherein the pile can be installed easily, in a short time and without mistakes. <P>SOLUTION: The standing and driving jig 1 includes a drill 50 for drilling a hole on the ground in which a pile 60 is to be erected; and a jig body 10 for supporting the drill 50. The jig is provided with perpendicular support means 20, 40 for perpendicularly supporting the drill 50; fixing means 30 for fixing the jig body 10 to the ground; and idling fixing means 40 for limiting the drilling depth of the drill 50. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a pile building jig and a pile building method used when installing a trough facility of a bridge-type facility of an underground power transmission line.

  Conventionally, as a method of installing a lightweight trough on the ground, a beating insertion tube having a hitting top portion at the upper end and a saddle plate portion at the lower end is inserted into the upper end of a pile rod tube standing on the ground, and the hitting top portion is hit. There is a method of driving the pile rod tube into the ground, fixing the sinking prevention saddle plate at the ground position of this pile rod tube, and mounting the trough by attaching the trough mounting frame plate to the upper end of the pile rod tube (Patent Document 1). However, since the Ns-type trough facility has a structure in which two steel pipe piles are embedded with high accuracy, the method described in Patent Document 1 requires time and effort for installation and adjustment.

Next, a method for embedding a pile of conventional Ns type trough equipment will be described with reference to FIG. First, in step 101, as shown in FIG. 11 (a), the stringer 101 is installed, the water string 102 is stretched on the stringer 101, and the swivel swing 103 is lowered from the water string 102 to obtain the position of the excavation position in advance. Then, excavation is performed from the slope G1 to the bottom plate installation portion G2 with the scoop 104 or the like (S101). Next, in step 102, as shown in FIG. 11 (b), the Ns pile embedding excavation hole G3 is registered from the bottom plate installation portion G2, and excavated to a predetermined depth with a scoop 105 or the like (S102). Next, in Step 103, the Ns pile material 106 and the bottom plate 107 are built into the digging excavation part G3 that is difficult as shown in FIG. 11C, and fine adjustments before and after are repeatedly executed and set (S103). Next, in step 104, height adjustment is executed as shown in FIG. Since there is no adjustment on the material for the height adjustment, the Ns scooping material 106 and the bottom plate 107 are once disassembled, and the adjustment of the bottom plate 107 is repeated by earthing or the like while measuring the flooring of the bottom plate 107 with a box measure or the like. Execute (S104). Finally, in step 105, as shown in FIG. 5E, backfilling is performed on the pile excavation part G3 below the bottom plate installation part G2 (105).
Japanese Patent Laid-Open No. 5-130727

  However, in the conventional Ns-type trough facility pile burial method, since the loading was performed three times during excavation, bottom plate installation, and pile installation, it took time and effort to adjust the installation. Further, the drilled hole may be loosened and collapsed when a person enters during the work. Furthermore, since the diameter of the cut hole was increased, the vertical alignment of the piles was reworked. In addition, backfilling of the overburden was difficult because the bottom plate was in the way. Further, finally, the Ns squeeze was struck, so the noise was noisy and the product could be scratched.

  This invention solves the said subject, Comprising: It aims at providing the Ns type pile building jig and Ns type pile building method which anyone can install easily in a short time without a mistake.

  Therefore, the present invention provides a vertical support means for supporting the drill in a vertical direction in a drilling jig provided with a drill for drilling a hole for embedding underground hard and a jig body for supporting the drill. And fixing means for fixing the jig main body to the ground, and idling fixing means for limiting the drilling depth of the drill.

  The drill is detachable from the jig body, and has a handle that is manually driven and a drill rod that is detachable from the handle.

  Further, the drill portion of the drill has a diameter substantially the same as the diameter of the rake.

  The pitch of the drill portion of the drill is about 80 mm.

  The jig body has a guide hole through which the drill penetrates, and has an upper member that detachably fixes the vertical support means and the idling fixing means, and a guide means through which the drill penetrates, It consists of the lower member fixed to the ground by a fixing means, and the support | pillar which connects the said upper member and the said lower member.

  Further, the guide means is a guide pipe having an inner circumference that is substantially the same diameter as the outer circumference of the drill portion and into which the drill portion can be inserted.

  Further, the vertical support means has two left and right opening / closing lid bodies fixed to be rotatable with the guide hole of the upper member interposed therebetween, and a recess into which the drill can be fitted.

  Further, the idling fixing means has a recess into which a drill can be fitted.

  Further, the method of the present invention is a method of building a pile including a pile portion and a bottom plate having a pile portion through-hole through which the pile portion penetrates, and placing the bottom plate on the ground. A step of placing a hard laying jig main body on the bottom plate, a step of digging a hole for laying the pile with the rake building jig, and the jig leaving the bottom plate after excavation. The method includes a step of removing only the main body and a step of penetrating the rake portion through the piercing portion through hole of the bottom plate.

  In addition, after the step of passing the rake portion through the bottom plate, there is a step of fine adjustment by inserting an adjustment fitting between the bottom plate and the rake portion.

  According to the present invention, a vertical support means for supporting the drill in a vertical direction in a drilling jig provided with a drill for drilling a hole for embedding underground hard and a jig body for supporting the drill. And a fixing means for fixing the jig body to the ground and an idling fixing means for limiting the drilling depth of the drill.

  The drill is detachable from the jig body, and has a handle that is manually driven and a drill rod that can be attached to and detached from the handle.

  Moreover, since the drill part of the said drill has the diameter substantially the same as the diameter of the said rake, backfilling becomes unnecessary.

  Moreover, since the pitch of the drill part of the said drill is about 80 mm, it can be used also in the ground where gravel with a large particle size is mixed.

  The jig body has a guide hole through which the drill penetrates, and has an upper member that detachably fixes the vertical support means and the idling fixing means, and a guide means through which the drill penetrates, Since it consists of the lower member fixed to the ground by the fixing means and the support column connecting the upper member and the lower member, it can be formed with a simple structure and the cost is reduced.

  In addition, since the guide means is a guide pipe having an inner circumference in which the drill portion can be inserted with substantially the same diameter as the outer circumference of the drill portion, the guide means can also have a function as a vertical support means for vertically supporting the drill.

    Further, the vertical support means includes two left and right opening / closing lid bodies fixed to be rotatable with the guide hole of the upper member interposed therebetween, and a recess into which the drill can be fitted, so that the drill is vertically supported. be able to.

  In addition, since the idling fixing means has a recess into which the drill can be inserted, the depth of the drilling hole of the drill can be limited, and by adjusting the length of the pile, there is no need to push the pile, so noise And scratches on the product disappear.

  Further, the method of the present invention is a method of building a pile including a pile portion and a bottom plate having a pile portion through-hole through which the pile portion penetrates, and placing the bottom plate on the ground. A step of placing a hard laying jig main body on the bottom plate, a step of digging a hole for laying the pile with the rake building jig, and the jig leaving the bottom plate after excavation. Since there is a step of removing only the main body and a step of passing the rake portion through the piercing portion through hole of the bottom plate, the way of handling can be shortened from the conventional three steps to one step and the collapse of the excavation hole is eliminated.

  Further, after the step of passing the rake portion through the bottom plate, there is a step of fine adjustment by inserting an adjustment fitting between the bottom plate and the rake portion, so that the correction of the vertical error can be simplified. it can.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Fig.1 (a) is a perspective view which shows the pile construction jig 1 of this embodiment, FIG.1 (b) is a partially expanded view of Fig.1 (a). DESCRIPTION OF SYMBOLS 1 is an Ns type rake laying jig as an example of a rake building jig, 10 is a jig | tool main body, 11 is an upper cover as an example of an upper member, 12 is a support | pillar, 13 is a lower cover as an example of a lower member, 20 is a left and right open / close lid as an example of vertical support means, 21 is a left and right open / close lid body, 22 is a recess, 23 is a convex part, 24 is a thumb screw part, 25 is a thumb screw, and 30 is a fixing pin as an example of a fixing means , 40 is an idle fixing bracket as an example of an idle fixing means, 41 is an upper part, 41a is a vertical plate part, 41b is an upper plate part, 41c is an upper concave part, 42 is a bottom part, 42a is a lower concave part, 42b is a concave part of a thumbscrew, 50 is a drill, 51 is a handle, 52 is a drill rod. The Ns type pile building jig 1 is configured by passing a drill 50 having a handle 51 in the upper portion and a drill rod 52 in the lower portion through the jig body 10 having the upper lid 11, the support column 12 and the lower lid 13. The left / right opening / closing lid 20 is disposed on the upper lid 11 of the jig body 10 and used to support the drill 50 in the vertical direction. The idling fixture 40 is also mounted on the upper lid 11 of the jig body 10. Placed and used to limit the drilling depth of the drill 50. The fixing pin 30 penetrates the lower lid 13 of the jig body 10 and fixes the jig body 10 to the ground. The jig body 10 and the drill 50 each have a weight of about 15 kg and can be divided and carried. The drill 50 is used to excavate a hole for embedding a hard underground, and is supported by the jig body 10.

  Next, a detailed description will be given with reference to FIG. 2A and 2B are views showing the jig main body. FIG. 2A is a front view of the jig main body, FIG. 2B is a plan view of the upper lid 11, and FIG. It is a top view. In FIG. 2, 10 is a jig body, 11 is an upper lid, 11a is a guide hole, 11b is a thumbscrew hole, 12 is a support column, 13 is a lower lid, 13a is a guide pipe as an example of guide means, and 13b is a fixed pin hole. It is. The jig body 10 has an upper lid 11 and a lower lid 13 connected by a support column 12. The upper lid 11 is a substantially square plate material, has a guide hole 11a through which the drill 50 penetrates at the center, and has a thumbscrew hole 11b on both sides so as to sandwich the guide hole 11a. The guide hole 11a has an inner diameter of about 100 mm and is larger than the diameter of the drill rod 52 of the drill 50, so that the drill 50 can easily penetrate. The wing screw hole 11b is a female screw-like hole for screwing the wing screw 25 of the left / right opening / closing lid portion 20 and detachably fixing the left / right opening / closing lid portion 20 and the idling fixing means 40. The column 12 has four steel pipes having a length of about 600 mm and a diameter of about 35 mm arranged in a substantially square shape, and connects the upper lid 11 and the lower lid 13. The lower lid 13 is a substantially square plate material having a cylindrical guide pipe 13a through which the drill 50 penetrates at the center, and a fixing pin hole 13b through which the fixing pin 30 passes. The guide pipe 13a has an inner diameter of about 80 mm and is substantially equal to or slightly smaller than the diameter of the drill rod 52 of the drill 50, thereby supporting the drill 50 by penetrating in the vertical direction, and also having a role as a vertical support means. It is a cylindrical member that protrudes about 100 mm vertically above. The fixing pin hole 13 b is a hole that is provided at a substantially middle point of a line connecting the adjacent coupling portions of the lower lid 13 and the four support columns 12 and penetrates the fixing pin 30.

  FIG. 3 is a view showing the left / right opening / closing lid 20. In FIG. 3, 20 is a left / right opening / closing lid, 21 is a left / right opening / closing lid body, 22 is a recess, 23 is a protrusion, 24 is a thumbscrew, and 25 is a thumbscrew. The left / right opening / closing lid 20 includes a left / right opening / closing lid body 21, a recess 22, a protrusion 23, a thumbscrew 24, and a thumbscrew 25. The left and right open / close lid body 21 is a substantially circular plate member having a diameter of about 130 mm, and the respective hinge screw holes 11b provided on both sides of the upper lid 11 of the jig body 10 with the guide holes 11a interposed therebetween via the respective thumb screws 25. Two circular arc-shaped concave portions 22 cut out from the outer periphery to the central portion, a convex portion 23 projecting in an L shape from the outer periphery, and a screw hole projecting on the opposite side of the convex portion 23 and screwed into the butterfly screw 25 And a thumbscrew portion 24 provided with a hinge screw 25, and is rotatable about the thumbscrew 25. When the left and right open / close lid main body 21 rotates around the thumbscrew 25, the drill 50 can be held in a vertical state by being inserted and sandwiched in the recess 22 rotated from both sides. At this time, the convex portion 23 is hooked on the thumbscrew 25.

  FIG. 4 is a view showing the fixing pin 30. In FIG. 4, 30 is a fixed pin, 31 is a pin body, 32 is an end extension, and 33 is an intermediate extension. The fixing pin 30 is a substantially F-shaped rod-shaped member, and includes a pin body 31, an end extension portion 32, and an intermediate extension portion 33. The pin main body 31 passes through the fixing pin hole 13b of the lower lid 13 of the jig main body 10 and the fixing pin through hole 64b of the bottom plate 64 described later, and is embedded in the ground, thereby bringing the jig main body 10 and the bottom plate 64 into the ground. It is to be fixed. The end extension 32 is a portion that is hit with a hammer or the like when the fixing pin 30 is embedded in the ground. The intermediate extension 33 has a function of hitting the lower lid 13 of the jig body 10 and fixing the lower lid 13 when the fixing pin 30 is embedded in the ground. Further, when the end extension portion 32 of the fixing pin 30 is hit with a hammer or the like, the fixing pin 30 can be held and pressed.

  FIG. 5 is a view showing the idle fixing metal fitting 40. FIG. 5A is a front view, and FIG. 5B is a plan view. In FIG. 5, 40 is an idle fixing metal fitting, 41 is an upper part, 41a is a vertical plate part, 41b is an upper plate part, 41c is an upper recessed part, 42 is a bottom part, 42a is a lower recessed part, and 42b is a thumbscrew recessed part. The idle-fixing metal fitting 40 includes an upper portion 41 in which a plate material is turned upside down and a bottom portion 42 joined to an end portion of the upper portion 41 with a plate-like member. The upper portion 41 includes a vertical plate portion 41a made of two plates and an upper plate portion 41b connecting the upper end portions of the vertical plate portion 41a. The upper plate portion 41b is provided with an upper concave portion 41c into which the drill 50 is fitted. It has been. The bottom portion 42 is provided with a lower concave portion 42a into which the drill 50 is fitted and a thumbscrew concave portion 42b into which the thumbscrew 25 is fitted. The idling fixing bracket 40 supports the drill 50 in the vertical direction and limits the drilling depth of the drill 50 and is fixed by the thumbscrew 25. In this embodiment, the height is about 150 mm, but the height may be adjustable depending on the depth of the hole to be excavated.

  FIG. 6 is a view showing the drill 50. FIG. 6A is a plan view of the handle 51, and FIG. 6B is a front view of the drill 50. In FIG. 6, 50 is a drill, 51 is a handle, 51a is an annular portion, 51b is a rib portion, 51c is a hub portion, 51d is a gripping portion, 52 is a drill rod, 52a is a rod portion, and 52b is a drill portion. The drill 50 includes a handle 51 and a drill rod 52, and the drill rod 52 passes through the guide hole 11 a of the upper lid of the jig body 10 and the guide pipe 13 a of the lower lid 13 and excavates the ground by rotating the handle 51. It is.

  The handle 51 has a hub portion 51c where the rib portion 51b intersects at the center of the annular portion 51a, and is detachably coupled to the drill rod 52 at the hub portion 51c. The annular portion 51a or the rib portion 51b is provided with a grip portion 51d that is gripped when the drill 50 is manually driven. The drill rod 52 has a rod portion 52a and a drill portion 52b, and is detachably coupled to the hub portion 51c of the handle 51 at the upper end portion of the rod portion 52a. The drill part 52b is provided in the lower part of the drill rod 52, and can set a diameter according to the diameter of the rake used. In this embodiment, the diameter is about 80 mm, the pitch is about 80 mm, and the length is about 600 mm. With such a size, since the diameter of the excavation hole and the Ns rake is substantially the same, backfilling or the like is not necessary at the time of erection, and stones of about 50 mm can be eliminated at the time of excavation.

  As a mechanism for attaching and detaching the handle 51 and the drill rod 52, for example, a mechanism for opening a screw hole in the radial direction at the upper end portion of the hub portion 51c of the handle 51 and the rod portion 52a of the drill rod 52 and screwing from the outer periphery of the hub portion 51c, The inner periphery of the hub 51c of the handle 51 is formed in a quadrangle, hexagon, or the like, and the upper end of the rod 52a of the drill rod 52 is formed in the same shape to be a mechanism for fitting.

  Next, the Ns trough will be described with reference to FIG. 7A is a front view, FIG. 7B is a bottom plate, FIG. 7C is a side view, and FIG. 7D is a plan view. In FIG. 7, G1 is a slope, 60 is an Ns pile as an example of a pile, 61 is a pile portion, 62 is a blade portion, 63 is a bracket, 64 is a bottom plate, 64a is a drill and a pile through hole, and 64b is through a fixing means. A fixing pin through hole as an example of the hole, 70 is a trough mounting member, and 80 is a trough. Of the bridge-type facilities for underground transmission lines, the Ns trough has a structure in which two Ns piles 60 are embedded in a slope G1 such as embankment.

  The Ns pile 60 includes a pile portion 61, a blade portion 62, a bracket 63, and a bottom plate 64. The pile portion 61 is made of a steel pipe and the diameter and length are set according to the installation location such as the angle of the slope G1. Four blade portions 62 are installed on the bottom plate 64 at a position where the lower end is about 500 mm from the lower end portion of the scooping portion 61 and around the scooping portion 61 at intervals of about 90 degrees. The bracket 63 is installed inside each of the Ns piles 60 on which the two brackets 63 are mounted, and connects the trough mounting member 70 installed between the pile portions 61. The bottom plate 64 is separate from the rake portion 61. When excavating the digging hole using the Ns-type building jig described above, the bottom plate 64 is arranged in advance in the bottom plate installation portion G2, and the jig The fixing pin 30 is passed through the fixing pin through hole 64b together with the jig main body 10 with the main body 10 placed on top, and a portion 61 that is difficult to remove after removing only the jig main body 10 after excavation passes through the through hole 64a. Therefore, it is used as a part of the Ns rake 60. The trough placing member 70 is coupled to the bracket 63 inside the two Ns piles 60 facing each other, and places the trough 80 thereon. The trough 80 is a concrete member through which a power transmission line passes.

  Next, a method of building a pile using the Ns type pile building jig 1 for installing such an Ns type trough facility will be described. FIG. 8 is a diagram for explaining a pile building method.

  First, in step 1, as shown in FIG. 8A, a stringer 101 is installed in the same manner as in the prior art, a water string 102 is stretched on the stringer 101, and a swivel swing 103 is lowered from the water string 102 in advance. And excavating with a scoop 104 or the like from the slope G1 to the bottom plate installation part G2 (S1). Next, in step 2, the bottom plate 64 is horizontally arranged on the bottom plate installation part G2 while being measured by the level 90 as shown in FIG. 8B (S2). Next, in step 3, as shown in FIG. 8C, the jig main body 10 with the left and right opening / closing lid 20 of the Ns type pile building jig 1 attached is placed on the bottom plate 64 (S3).

  Next, in step 4, as shown in FIG. 8 (d), with the swivel 103, the guide pin cap (not shown) attached to the guide pipe 13a is aligned with the center of the guide pipe cap and the fixing pin 30 is fixed with a hammer or the like while looking horizontally. The driving bottom plate 64 and the lower lid 13 of the jig body 10 are both fixed to the ground (S4). Next, in step 5, as shown in FIG. 8E, the drill 50 is passed through the guide hole 11a of the upper lid 11 of the jig body 10 and the guide pipe 13a of the lower lid 13, and the idle fixing bracket 40 is attached to the jig body. 10 is placed on the left and right open / close lid 20 placed on the upper lid 11. At this time, as shown in FIG. 1A, the butterfly screw concave portion 42b of the bottom portion 42 is placed in a butterfly shape so that the rod portion 52a of the drill rod 52 fits into the upper concave portion 41c of the upper plate portion 41 and the lower concave portion 42a of the bottom portion 42. Fix with screws 25 (S5). Next, in step 6, as shown in FIG. 8 (f), the handle 51 is turned while excavating while maintaining the vertical state of the drill 50 (S6). At this time, the drill 50 is excavated until it abuts on the idling fixing bracket 40. When the drill 50 abuts on the idling fixing bracket 40, the drill 50 rotates idly so that the excavated soil is discharged upward from the guide pipe 13a. It has become.

  Next, in step 7, the drill 50 is pulled out as shown in FIG. 8G (S7), and in step 8, the jig body 10 is removed as shown in FIG. 8H (S8). Then, the bottom plate 64 remains in the bottom plate installation part G2. Finally, in step 9, as shown in FIG. 8 (i), an Ns pile 60 is built (S9). Then, since the diameter of the Ns rake 60 and the maximum diameter of the drill rod 52 of the drill 50 are substantially the same, the lower part than the blade part 62 of the Ns rake 60 is inserted into the digging excavation hole G3, and there is almost no need to backfill. Can be built vertically.

  FIG. 9 shows a fine adjustment method for the Ns rake 60. In FIG. 9, 65 is a U-shaped adjustment fitting, and 66 is a plate-like adjustment fitting. The U-shaped adjustment fitting 65 is a member inserted between the blade portion 62 of the Ns pile 60 and the bottom plate 64 and is used for fine adjustment of the vertical direction error. The plate-shaped adjustment fitting 66 is a member inserted between the blade portion 62 of the Ns pile 60 and the U-shaped adjustment fitting 65, and is used when further fine adjustment is required after the U-shaped adjustment fitting 65 is inserted. Is done.

  FIG. 10 shows a centering method. The centering is performed at the center of Ns to eliminate construction errors.

  By applying such a pile-building jig and a pile-building method, the Ns pile 60 is not struck, so noise and product scratches are eliminated. Further, by making the excavation diameter and the rake diameter the same, backfilling becomes unnecessary, and when the drill 50 comes into contact with the idling fixing bracket 40, the drill 50 is idle and the excavated soil is removed from the guide pipe 13a. There is no need to discharge the soil because it is discharged to the top. Furthermore, since it can be divided into the jig body 10 and the drill 50, each can be easily carried. It can also be used on ground where gravel with a large particle size is mixed. Furthermore, the spending can be shortened from the conventional three steps to one step. Further, when the Ns jig 10 is removed after drilling, the bottom plate 64 remains and the bottom plate 64 is laid as it is to form an iron plate, so that the excavation hole does not collapse. Furthermore, the correction of the vertical error can be easily done by inserting an adjustment fitting.

The figure which shows one Embodiment of a pile construction jig The figure which shows one Embodiment of a jig | tool main body The figure which shows one Embodiment of a vertical support means The figure which shows one Embodiment of a fixing means The figure which shows one Embodiment of an idling fixing means The figure which shows one Embodiment of a drill The figure which shows one Embodiment of trough The figure which shows one Embodiment of the pile construction method The figure which shows one Embodiment of the fine adjustment method The figure which shows one Embodiment of the centering method Diagram showing conventional technology

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Ns type pile building jig (Pile building jig), 10 ... Jig body, 11 ... Upper lid (upper member), 11a ... Guide hole, 11b ... Thumb screw hole, 12 ... Post, 13 ... Lower lid (Lower member), 13a ... guide pipe (guide means), 13b ... fixing pin hole, 20 ... left / right open / close lid (vertical support means), 21 ... left / right open / close lid main body, 22 ... concave, 23 ... convex, 24 ... butterfly Screw part, 25 ... thumb screw, 30 ... fixing pin (fixing means), 31 ... pin main body, 32 ... end extension part, 33 ... intermediate extension part, 40 ... idling fixing bracket (vertical support means, idling fixing means), 41 ... Upper part, 41a ... Vertical plate part, 41b ... Upper plate part, 41c ... Upper recessed part, 42 ... Bottom part, 42a ... Lower recessed part, 42b ... Thumb screw recessed part, 50 ... Drill, 51 ... Handle, 51a ... Annular part, 51b ... Rib part, 51c ... Hub part, 51d ... Holding part, 52 ... Drill lock 52a ... Rod part, 52b ... Drill part, 60 ... Ns pile, 61 ... Pile part, 62 ... Blade part, 63 ... Bracket, 64 ... Bottom plate, 64a ... Drill and pile through hole, 64b ... Fixed pin through hole (fixed) Through hole), 65 ... U-shaped adjusting bracket, 66 ... Plate-shaped adjusting bracket, 70 ... Trough mounting member, 80 ... Trough, 90 ... Level, 101 ... Tightening, 102 ... Water string, 103 ... Sparrow swing 104 ... scoop, G1 ... slope, G2 ... bottom plate installation part, G3 ... excavation part for pile burial

Claims (10)

In a pile construction jig comprising a drill for excavating a hole for embedding underground hard and a jig body for supporting the drill, a vertical support means for vertically supporting the drill, and the jig body A pile building jig comprising: fixing means for fixing the drill to the ground; and idling fixing means for limiting a drilling depth of the drill. 2. The pile building jig according to claim 1, wherein the drill is detachable from the jig main body, and includes a manually driven handle and a drill rod detachable from the handle. The pile building jig according to claim 1 or 2, wherein a drill portion of the drill has a diameter substantially the same as the diameter of the pile. 4. The pile building jig according to claim 1, wherein a pitch of the drill portion of the drill is about 80 mm. The jig body has a guide hole through which the drill passes, an upper member that detachably fixes the vertical support means and the idling fixing means, and guide means through which the drill passes, and the fixing means 5. The pile building jig according to claim 1, comprising: a lower member fixed to the ground by means of; and a support column connecting the upper member and the lower member. 6. The rake building jig according to claim 5, wherein the guide means is a guide pipe having an inner circumference that is substantially the same diameter as the outer circumference of the drill portion and into which the drill portion can be inserted. The said vertical support means has two right-and-left opening-and-closing lid main bodies fixed so that rotation is possible on both sides of the said guide hole of the said upper member, and the recessed part which can fit the said drill. The pile building jig according to claim 6. The pile-fixing jig according to any one of claims 1 to 7, wherein the idling fixing means has a recess into which a drill can be fitted. A step of placing the bottom plate on the ground; and a step of placing the bottom plate on the ground, comprising: a pile portion; and a bottom plate having a pile portion through-hole through which the pile portion penetrates. A step of placing a difficult erection jig main body, a step of drilling a piercing hole of the bottom plate with the piercing jig to dig a hole for erection of the rake, and the bottom plate after excavation A method for building a pile, comprising the steps of removing only the jig main body and leaving the pile portion through the pile portion through hole of the bottom plate. The pile building according to claim 9, further comprising a step of fine adjustment by inserting an adjustment fitting between the bottom plate and the rake portion after the step of passing the rake portion through the bottom plate. Method.

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