JP2017014789A - Installation method of foundation pile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an installation method of a foundation pile capable of easily installing a foundation.SOLUTION: An installation method of a foundation pile includes an installation process of erecting a tubular foundation pile 31 on the ground surface 20, an insertion process of inserting a narrow part 12 of a driving-in member 10 having the narrow part 12 having a smaller width than an opening part 33 below and having a wide part 11 of a larger width than the opening 33 above the narrow part 12, in the opening 33 on the upper end of the foundation pile 31, until the wide part 11 is hooked on the upper end of the foundation pile 31 and a driving-in process of driving the foundation pile 31 in the ground surface 20 by pressing the wide part 11 in a state of being hooked on the upper end of the foundation pile 31, to the upper end of the foundation pile 31.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a foundation pile embedding method for erecting a pillar of an installation such as a fence, a signboard, a sign, etc.

Conventionally, when installing an installation such as a fence, a signboard, a sign, or the like on the ground, a foundation is embedded in the ground, and a support column of the installation object is inserted into the foundation, and the support column of the installation is erected on the ground.
As a method of installing the foundation, there is a method of embedding a concrete block having a column fixing hole into which a column is inserted on the upper surface (see, for example, Patent Document 1). There is a problem that it needs to be formed and takes time and effort.
For such a problem, there is a method of driving a metal tubular foundation pile into the ground (for example, see Patent Document 2).

JP 2006-299530 A JP 2000-64306 A

However, in the driving of the conventional foundation pile disclosed in Patent Document 2, as the tubular foundation pile penetrates deep into the ground, the underground soil enters the pipe from the bottom of the foundation pile. . Therefore, it is necessary to remove the soil in the pipe before the pillar is inserted into the pipe after the foundation pile has been driven into the ground, which is troublesome.
Then, an object of this invention is to provide the installation method of the foundation pile which can install a foundation easily in view of this problem.

  In order to achieve the above object, a foundation pile installation method according to an aspect of the present invention includes an installation step of standing a tubular foundation pile on the ground, and an opening at an upper end of the foundation pile. The narrow portion of the driving member having a narrow portion having a small width below and a wide portion having a width larger than the opening above the narrow portion is caught by the upper end of the foundation pile. And a driving step of driving the foundation pile into the ground by pressing the wide portion in a state of being hooked on the upper end of the foundation pile against the upper end of the foundation pile.

  Here, the wide portion of the driving member is made of a plate material having a width larger than the opening, the narrow portion of the driving member has a width smaller than the opening, and the main surface is the main portion of the wide plate material. The driving member further includes a bar member that connects the narrow plate member and the wide plate member, and the length of the bar member is the foundation pile. The maximum diameter of the bar may be smaller than the width of the narrow plate.

  Moreover, the part which hooks and contact | abuts to the upper end of the said foundation pile of the said wide part may be comprised from resin.

  Further, in the driving step, the foundation pile is driven into the ground so that the upper end of the foundation pile protrudes from the ground, and the installation method of the foundation pile further covers the opening at the upper end of the protruding foundation pile. It may include a capping step.

  The cap may be provided with a reflector that reflects light.

  Further, the cap may be formed with a through hole communicating with the inside of the foundation pile in a state of being covered with the opening at the upper end of the foundation pile.

  ADVANTAGE OF THE INVENTION According to this invention, the installation method of the foundation pile which can install a foundation easily is realizable.

It is a perspective view for demonstrating the installation method of the foundation pile which concerns on the 1st Embodiment of this invention. It is a perspective view for demonstrating the installation method of the foundation pile which concerns on the 1st Embodiment of this invention. It is a perspective view for demonstrating the installation method of the foundation pile which concerns on the 2nd Embodiment of this invention. It is a perspective view for demonstrating the modification of the installation method of the foundation pile which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
The installation method of the foundation pile which concerns on the 1st Embodiment of this invention is demonstrated using FIG.1 and FIG.2.

FIG.1 and FIG.2 is a figure for demonstrating the installation method of the foundation pile which concerns on this embodiment.
First, as shown in FIG. 1A, a tubular foundation pile 31 is erected on a place where a foundation is installed on the ground 20, and the driving member 10 is disposed above the foundation pile 31.
Here, the driving member 10 has a narrow portion 12 having a width (diameter) D2 smaller than the width (diameter) D1 of the circular opening 33 at the upper end of the foundation pile 31 at the lower end and a width larger than the opening 33 ( A jig having a wide portion 11 having a diameter D3 above the narrow portion 12. The narrow portion 12 and the wide portion 11 are both disk-shaped plate members and are connected in a state where the main surfaces are arranged in parallel.

  Further, the driving member 10 is further disposed between the narrow portion 12 and the wide portion 11, and is disposed above the wide portion 11 and the bar 13 that connects the centers of gravity of the narrow portion 12 and the wide portion 11. The lower end has a bar 14 connected to the wide portion 11. Since the bar 13 has a smaller diameter than the width D <b> 2 of the narrow portion 12, it can be inserted into the opening 33 at the upper end of the foundation pile 31 together with the narrow portion 12. The bar 14 is a gripping part that an operator grips with a hand when placing the driving member 10 at a predetermined position. The bars 13 and 14 may be one bar that penetrates the wide portion 11 instead of separate bars.

  Next, as shown in FIG. 1B, the narrow portion 12 and the bar 13 of the driving member 10 are inserted into the opening 33 at the upper end of the foundation pile 31, and the periphery of the wide portion 11 is the foundation pile 31. Push it down until it catches on the top edge. In this hooked state, the lower surface of the wide portion 11 is in contact with the opening end surface of the upper end of the foundation pile 31, and the opening 33 at the upper end of the foundation pile 31 is covered with the wide portion 11. And the narrow part 12 is located in the foundation pile 31, without protruding from the opening of the lower end of the foundation pile 31, and has divided the space in the foundation pile 31 into two, upper space and lower space.

  Next, as shown in FIG. 1C and FIG. 1D, the upper end of the bar 14 of the driving member 10 is struck downward with a tool 30 such as a hammer so that the wide portion 11 of the driving member 10 is widened. Is pressed against the ground 20 by driving it against the open end face of the upper end of the foundation pile 31. Then, when the upper end 32 of the foundation pile 31 is slightly protruded from the ground 20 (FIG. 1D), the driving of the foundation pile 31 is finished. When the driving member 10 can be disposed at a predetermined position by gripping the wide portion 11, the bar 14 may not be provided on the driving member 10, and in this configuration, the upper surface of the wide portion 11 is beaten by the tool 30. The foundation pile 31 is driven.

Here, when the foundation pile 31 is driven, the underground soil gradually enters the foundation pile 31 through the opening at the lower end of the foundation pile 31 as the foundation pile 31 penetrates deep into the ground. However, as shown in FIG. 1 (c), when the underground soil penetrates to the narrow portion 12, the narrow portion 12 presses the invaded soil downward. No longer intrudes into 31. As a result, as shown in FIG. 1 (d), in the foundation pile 31 that has been driven into the ground 20, all of the lower space among the lower space and the upper space separated by the narrow portion 12 in the foundation pile 31 is present. While being located below the ground 20 and being filled with underground soil, the upper space is partially below the ground 20 and not being filled with underground soil.
Further, in driving the foundation pile 31, the wide portion 11 of the driving member 10 is strongly pressed against the open end surface of the upper end of the foundation pile 31. Therefore, the lower surface of the wide portion 11 that is in contact with the opening end surface of the foundation pile 31 is not elastic, such as resin, so that a large impact sound is not generated by this pressing and the opening end surface of the upper end of the foundation pile 31 is not damaged. It is preferable to be composed of a flexible soft material.

  Next, as shown in FIGS. 2A and 2B, after the driving member 10 is pulled out from the foundation pile 31, the upper end portion 32 protruding from the ground 20 of the foundation pile 31 is covered from above. The cap 41 is fitted as shown in FIG.

  Here, the cap 41 is a cap composed of a ring-shaped disk and a hanging piece that hangs down from the outer peripheral edge thereof, and the disk is positioned on and in contact with the open end surface of the upper end of the foundation pile 31, and the hanging piece. Is fitted into the foundation pile 31 so as to be positioned on the outer peripheral surface of the upper end portion 32 of the foundation pile 31. Thereby, the opening end surface of the upper end of the foundation pile 31 that is pressed against the wide portion 11 of the driving member 10 and easily damaged is covered with the cap 41, and the occurrence of rust on the opening end surface of the upper end of the foundation pile 31 due to rainwater or the like is suppressed. be able to.

  A plurality of reflectors 43 that reflect light are attached to the outer surface of the hanging piece of the cap 41 along the circumferential direction of the hanging piece. Thereby, recognition of the position of the upper end part 32 of the foundation pile 31 can be made easy, and insertion of the support | pillar 42 in the foundation pile 31 can be made easy. In addition, after the column 42 is inserted, the presence of the column 42 becomes clear, and the occurrence of an accident such as a collision with the column 42 can be suppressed.

  Next, as shown in FIG. 2 (c), through a through hole 41 a having a substantially circular shape in a plan view of the cap 41 that communicates the upper space in the foundation pile 31 and the external space outside the foundation pile 31, A support post 42 is inserted into the upper space in the foundation pile 31.

  Next, as shown in FIG. 2 (d), a gap (cavity) between the support column 42 and the inner wall of the foundation pile 31 is formed in the upper space in the foundation pile 31 through the through hole 41 a of the cap 41. A filler such as liquid cement mortar is poured to fill the upper space in the foundation pile 31 with the filler. The support column 42 can be firmly erected on the ground 20 by curing the filler filled in the upper space. In addition, about the filling time of the filler to the upper space in the foundation pile 31, as long as the driving member 10 is pulled out from the inside of the foundation pile 31, it may be performed at any timing.

  As mentioned above, the installation method of the foundation pile 31 of this embodiment includes the installation process (FIG. 1A) which erects the tubular foundation pile 31 on the ground 20. The installation method of the foundation pile 31 further includes a narrow portion 12 having a width D2 smaller than the width D1 of the opening 33 in the opening 33 at the upper end of the foundation pile 31 and having a width D3 larger than the opening 33. This includes an insertion step (FIG. 1 (b)) in which the narrow portion 12 of the driving member 10 having the wide portion 11 above the narrow portion 12 is inserted downward until the wide portion 11 is caught by the upper end of the foundation pile 31. The method of installing the foundation pile 31 further includes a driving step of driving the foundation pile 31 into the ground 20 by pressing the wide portion 11 that is hooked on the upper end of the foundation pile 31 against the upper end of the foundation pile 31 (FIG. 1 (c) and 1D) is included.

  With this configuration, when the foundation pile 31 is driven into the ground 20, the soil that enters the foundation pile 31 is pressed down by the narrow portion 12 in the foundation pile 31, so even after the foundation pile 31 has been driven. A space not filled with soil can be formed in the upper part of the pile 31. Therefore, prior to the insertion of the pillars 42 into the foundation pile 31, it is not necessary to remove the soil in the foundation piles 31 in order to secure a space in which the pillars 42 can be inserted without being filled with soil. As a result, the installation method of the foundation pile 31 which can install a foundation easily is realizable.

  Moreover, in the installation method of the foundation pile 31 of this embodiment, the wide part 11 of the driving member 10 is comprised from the board | plate material which has the width | variety D3 larger than the width | variety D1 of the opening 33. FIG. The narrow portion 12 of the driving member 10 has a width D <b> 2 smaller than the width D <b> 3 of the opening 33, and is composed of a plate material arranged so that the main surface faces the main surface of the plate material of the wide portion 11. The driving member 10 further includes a bar 13 that connects the plate of the narrow portion 12 and the plate of the wide portion 11, and the length of the bar 13 is shorter than the length D4 of the foundation pile 31. The maximum diameter of the bar 13 is smaller than the width D2 of the plate material of the narrow portion 12.

  With this configuration, the wide portion 11 as a portion hooked on the upper end of the foundation pile 31 and the narrow portion 12 as a portion for pressing down the soil entering the foundation pile 31 are connected by the rod 13 having a small diameter. Therefore, a large gap can be formed between the bar 13 and the inner surface of the foundation pile 31 in a state of being inserted into the foundation pile 31. As a result, even when some soil enters between the driving member 10 and the inner surface of the foundation pile 31 when the foundation pile 31 is driven into the ground 20, the soil is placed in the gap between the bar 13 and the inner surface of the foundation pile 31. The driving member 10 can be easily pulled out from the foundation pile 31 after the driving is completed. Further, the driving member 10 can be reduced in weight.

  Moreover, in the installation method of the foundation pile 31 of this embodiment, the part which hooks and contacts the upper end of the foundation pile 31 of the wide part 11 is comprised from resin.

  With this configuration, the wide portion 11 is strongly pressed against the opening end surface of the upper end of the foundation pile 31 in driving the foundation pile 31, but since the wide portion 11 is made of a soft material such as resin, a large impact sound is generated, It can suppress that the opening end surface of the upper end of the foundation pile 31 receives damage.

  Moreover, in the installation method of the foundation pile 31 of this embodiment, in the driving process (FIG. 1 (c) and FIG. 1 (d)), the foundation pile 31 is placed on the ground 20 so that the upper end of the foundation pile 31 protrudes from the ground 20. Type in. And the installation method of the foundation pile 31 further includes the cap process (FIG. 2 (a) and FIG.2 (b)) which covers the cap 41 on the opening 33 of the upper end of the foundation pile 31 which protruded.

  With this configuration, the opening end surface of the upper end of the foundation pile 31 that is easily pressed and damaged by the wide portion 11 of the driving member 10 when the foundation pile 31 is driven is covered with the cap 41, and the opening end surface of the upper end of the foundation pile 31 is rusted by rainwater or the like. Generation | occurrence | production can be suppressed. As a result, it is possible to use a low-cost foundation pile 31 such as a steel pipe plated by a steel pipe manufacturer.

  Moreover, in the installation method of the foundation pile 31 of this embodiment, the reflector which reflects light is attached to the cap 41. FIG.

  With this configuration, a part of the cap 41 attached to the opening 33 of the foundation pile 31 emits light, which makes it easy for the operator to recognize the position of the upper end of the foundation pile 31 and into the foundation pile 31. An installation method of the foundation pile 31 in which the column 42 can be easily inserted can be realized. In addition, after the column 42 is inserted, the presence of the column 42 becomes clear, and the occurrence of an accident such as a collision with the column 42 can be suppressed.

  Moreover, in the installation method of the foundation pile 31 of this embodiment, the through-hole 41a connected to the inside of the foundation pile 31 is formed in the cap 41 in a state of being covered with the opening 33 at the upper end of the foundation pile 31. .

  With this configuration, the support column 42 can be inserted into the foundation pile 31 by inserting the support column 42 into the through hole 41 a of the cap 41, so that the support column 42 can be inserted into the foundation pile 31 even after the cap 41 is attached. It can be carried out. As a result, it is possible to change the order of the process of attaching the cap 41 and the process of inserting the support column 42, and it is possible to realize an installation method of the foundation pile 31 having a high degree of freedom in the order of the process.

(Second Embodiment)
The installation method of the foundation pile 31 which concerns on the 2nd Embodiment of this invention is demonstrated using FIG. Hereinafter, it demonstrates centering on a different point from the installation method of the foundation pile 31 of 1st Embodiment.

Drawing 3 is a figure for explaining the installation method of foundation pile 31 concerning this embodiment.
The installation method of the foundation pile 31 according to the present embodiment is different from the first embodiment in the configuration of the cap and the method of attaching the cap to the foundation pile 31, but the process until the foundation pile 31 is driven into the ground 20. About (FIG. 1 (a)-FIG.1 (d)), it is the same as that of 1st Embodiment.

  First, as shown in FIGS. 1A to 1D, the driving member 10 is inserted into the foundation pile 31 and struck with a tool 30 to drive the foundation pile 31 into the ground 20.

  Next, as shown in FIGS. 3A and 3B, after the driving member 10 is pulled out from the foundation pile 31, the upper space in the foundation pile 31 is filled with a filler. Then, after arrange | positioning so that the half caps 51 and 52 may be pinched and opposed on either side of the upper end part 32 protruded from the ground 20 of the foundation pile 31, the half cap 51 is fitted to the left side of the upper end part 32 from the left side. The half cap 52 is fitted on the right side of the upper end portion 32 from the right side. Accordingly, a cap 53 configured by combining the half caps 51 and 52 is fitted into the upper end portion 32 of the foundation pile 31.

  Here, the half cap 51 is composed of a semicircular disk and a hanging piece that hangs down from the arcuate outer peripheral edge, and a notch 51a is formed in the linear outer peripheral edge of the semicircular disk. The half cap 51 is positioned so that its semi-disc is in contact with the open end surface of the upper end of the foundation pile 31 and its hanging piece is in contact with the outer peripheral surface on the left side of the upper end portion 32 of the foundation pile 31. Is fitted on the left side of the foundation pile 31. A plurality of reflectors 54 that reflect light are attached to the outer surface of the hanging piece of the half cap 51 along the circumferential direction of the hanging piece.

  The half cap 52 has the same form as the half cap 51, and is composed of a semicircular plate and a hanging piece that hangs down from the arcuate outer peripheral edge. Has a notch 52a. The half cap 52 is also positioned so that its semi-disc is in contact with the open end surface of the upper end of the foundation pile 31 and its hanging piece is in contact with the outer peripheral surface on the right side of the upper end portion 32 of the foundation pile 31. Is fitted into the right side of the foundation pile 31. A plurality of reflectors 54 that reflect light are attached to the outer surface of the hanging piece of the half cap 52 along the circumferential direction of the hanging piece.

  Further, as shown in FIG. 3 (b), the cap 53 has the half caps 51 and 52 such that the linear outer peripheral edges abut each other and the outer peripheral notches 51a and 52a face each other. It is composed in combination. The cap 53 is a cylindrical cap whose upper part is covered and whose lower part is opened, and a through hole 53a constituted by two notches 51a and 52a is formed in the upper part of the cap 53. Since the through hole 53a is substantially the same as the cross-sectional shape of the column 42 inserted into the foundation pile 31, the column 42 can be installed by unifying the insertion position of the column 42 at the position of the through hole 53a and different operators. The position variation is reduced. The cap 53 covers the opening end surface of the upper end of the foundation pile 31 that is pressed against the wide portion 11 of the driving member 10 and is easily damaged, and prevents rust from being generated on the opening end surface of the upper end of the foundation pile 31 by rainwater or the like. it can.

  Next, as shown in FIGS. 3 (c) and 3 (d), through the through hole 53 a of the cap 53 that communicates the upper space in the foundation pile 31 and the external space outside the foundation pile 31. The support post 42 is inserted into the upper space in the foundation pile 31. Thereafter, the support 42 can be firmly erected on the ground 20 by curing the filler filled in the upper space.

  As mentioned above, the installation method of the foundation pile 31 of this embodiment is the installation method of the foundation pile which can install a foundation easily for the same reason as the installation method of the foundation pile 31 of 1st Embodiment. Can be realized.

  Moreover, in the installation method of the foundation pile 31 of this embodiment, the cap 53 is divided | segmented into the half caps 51 and 52. FIG.

  With this configuration, it is possible to attach the cap 53 after the support column 42 is inserted into the foundation pile 31, and an installation method of the foundation pile 31 having a high degree of freedom in the process order can be realized.

  As mentioned above, although the installation method of the foundation pile of this invention was demonstrated based on embodiment, this invention is not limited to these embodiment. The present invention includes various modifications made by those skilled in the art without departing from the scope of the present invention.

  For example, in the foundation pile installation method of this embodiment, the driving member 10 has a configuration in which the wide portion 11 and the narrow portion 12 are connected by the bar 13, but there is no bar 13 and the wide portion 11. The narrow portion 12 may be directly connected. For example, as shown in FIG. 4, in the driving member 10, the wide portion 11 and the narrow portion 12 have a large thickness in the vertical direction, and these may be directly connected.

  Moreover, in the installation method of the foundation pile of this embodiment, although the narrow part 12 of the driving member 10 was disk-shaped, it has a width D2 smaller than the width D1 of the opening 13 at the upper end of the foundation pile 31. For example, a rectangular plate shape may be used. Similarly, although the wide portion 11 of the driving member 10 has a disk shape, if it has a width D3 larger than the width D1 of the opening 13 at the upper end of the foundation pile 31, for example, it may have a rectangular plate shape. Good.

  INDUSTRIAL APPLICABILITY The present invention can be widely used in a foundation pile embedding method and the like for standing a column on the ground.

DESCRIPTION OF SYMBOLS 10 Driving member 11 Wide part 12 Narrow part 13, 14 Bar material 20 Ground 31 Foundation pile 32 Upper end part 33 Opening 41, 53 Cap 41a, 53a Through-hole 42 Support | pillar 43, 54 Reflector 51, 52 Half cap 51a, 52a Cutout

Claims (6)

An installation process in which a tubular foundation pile is erected on the ground;
In the opening at the upper end of the foundation pile, the narrow portion of the driving member that has a narrow portion having a width smaller than the opening below and a wide portion having a width larger than the opening above the narrow portion. An insertion step of inserting a part until the wide part is hooked on an upper end of the foundation pile;
An installation method for a foundation pile, comprising: a step of driving the foundation pile into the ground by pressing the wide portion in a state of being caught on the upper end of the foundation pile against the upper end of the foundation pile. The wide portion of the driving member is composed of a plate material having a width larger than the opening,
The narrow portion of the driving member has a smaller width than the opening, and is composed of a plate material arranged so that the main surface faces the main surface of the wide plate material,
The driving member further includes a bar member that connects the narrow plate member and the wide plate member,
The length of the bar is shorter than the length of the foundation pile,
The installation method of the foundation pile of Claim 1. The maximum diameter of the said bar is smaller than the width | variety of the said narrow board | plate material. The method for installing a foundation pile according to claim 1 or 2, wherein a portion of the wide portion that is caught by and contacted with an upper end of the foundation pile is made of resin. In the driving step, the foundation pile is driven into the ground so that the upper end of the foundation pile protrudes from the ground,
The installation method of the foundation pile of any one of Claims 1-3 further including the cap process which covers a cap on the opening of the upper end of the protruded foundation pile. The foundation pile installation method according to claim 4, wherein a reflector that reflects light is attached to the cap. The installation method of the foundation pile of Claim 4 or 5 in which the through-hole connected with the inside of the said foundation pile is formed in the said cap in the state covered with the opening of the upper end of the said foundation pile.

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