JP2009228206A - Foundation structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foundation element and a foundation structure, which can shorten a construction period by eliminating cumbersome and complicated operations. <P>SOLUTION: The foundation element comprises: a precast concrete foundation element body which is equipped with a through-hole; an engaging protrusion which is provided on either of the upper and lower surfaces of the foundation element body; and an engaging recess which is provided in the other one of the upper and lower surfaces of the foundation element body. The plurality of foundation elements are prepared, and stacked while having the opposed engaging protrusion and recess engaged with each other; a columnar structure is inserted and arranged in the communicating through-hole; and a grout material is infilled between the columnar structure and the through-hole, so that the columnar structure can be fixed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to, for example, a foundation element used as a foundation element for holding various columnar structures that support a display board, a signboard, an advertisement board, and the like, and a foundation structure using the foundation element. It is related with what was devised so that shortening of the construction period required for work and facilitation of work could be aimed at.

  For example, a basic structure for holding various columnar structures that support a display board, a signboard, an advertisement board, etc. is constructed in the following procedure. First, a hole is excavated and a reinforcing bar is placed in the hole. Next, the formwork is installed and the anchor bolt is installed. Next, concrete is poured into the mold. Then, after a predetermined curing period has elapsed, the formwork is removed and the hole is refilled. And a columnar structure is attached and fixed to an anchor bolt.

  The conventional configuration has the following problems. That is, according to the conventional basic structure, there is a problem that complicated work is forced and a long construction period is required. Specifically, on-site excavation work, rebar placement work, formwork installation work, anchor bolt installation work, concrete placement work, formwork removal work, backfilling work, anchor bolts for columnar structures This is because a series of cumbersome operations such as fixing to the wall is required, and a curing period until the concrete hardens is required.

  The present invention has been made on the basis of the above points, and its object is to provide a foundation element and a foundation structure capable of shortening the construction period required for foundation construction work and facilitating the work. is there.

In addition, there exist patent document 1 and patent document 2 as what disclosed the basic structure considered to be related to this application, for example.
Japanese Patent Laid-Open No. 11-152759 JP-A-11-217838

  Patent Document 1 and Patent Document 2 disclose a basic structure using a foamed synthetic resin molded body.

In order to solve the above-mentioned problem, a foundation element according to claim 1 of the present invention includes a foundation element body formed in advance and provided with a through-hole, and an engagement convex portion provided on one of upper and lower surfaces of the foundation element body. And an engaging recess provided on either the upper or lower surface of the base element main body.
A foundation element according to claim 2 is the foundation element according to claim 1, characterized in that the outer peripheral side surface of the foundation element body is tapered.
The foundation element according to claim 3 is the foundation element according to claim 1, wherein the through hole formed in the foundation element main body has a tapered shape such that the diameter thereof is reduced from the lower surface side toward the upper surface side. It is characterized by that.
A foundation element according to claim 4 is the foundation element according to claim 1, wherein the foundation element is made of precast concrete.
A basic structure according to claim 5 is prepared by laminating a plurality of basic elements according to any one of claims 1 to 4 while engaging the engaging convex portions and engaging concave portions facing each other. A columnar structure is inserted and arranged in the connected through hole, and a grout material is filled and fixed between the columnar structure and the through hole.
The foundation structure according to claim 6 is the foundation structure according to claim 5, characterized in that a slip protrusion is provided at a portion of the columnar structure that is inserted and arranged in the through hole. It is.

As described above, according to the foundation element according to the first aspect of the present invention, the foundation element body that is formed in advance and has a through-hole, and the engagement convex portion that is provided on one of the upper and lower surfaces of the foundation element body, In addition, since it has a configuration comprising an engagement recess provided on either the upper or lower surface of the basic element body, if the basic structure is constructed using such a basic element, Since the work at the site, such as placing concrete, is greatly reduced, the construction period required for the foundation construction work can be shortened and the work can be facilitated.
The foundation element according to claim 2 is the foundation element according to claim 1, wherein the outer peripheral side surface of the foundation element main body is tapered, so that the work of taking out the foundation element from the mold is facilitated. is there.
The foundation element according to claim 3 is the foundation element according to claim 1, wherein the through hole formed in the foundation element main body has a tapered shape such that the diameter thereof is reduced from the lower surface side toward the upper surface side. Therefore, after fixing the base elements stacked and inserting the columnar structure material into the through hole and filling the gap with the grout material, the columnar structure material and the solidified grout material will come off carelessly. This can be prevented.
The foundation element according to claim 4 is the foundation element according to claim 1, and is made of precast concrete.
A basic structure according to claim 5 is prepared by laminating a plurality of basic elements according to any one of claims 1 to 4 while engaging the engaging convex portions and engaging concave portions facing each other. Since the columnar structure material is inserted and arranged in the through hole communicated, and the grout material is filled and fixed between the columnar structure and the through hole, the concrete is placed. The work at the site, such as the beginning, is greatly reduced, the work period required for the foundation construction work can be shortened and the work can be facilitated.
The foundation structure according to claim 6 is the foundation structure according to claim 5, wherein the columnar structure is provided with a stopper projection at a portion inserted and arranged in the through hole. Inadvertent misalignment can be prevented, and misalignment between the basic elements can be prevented.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. First, the structure of the basic element 1 in this Embodiment is demonstrated with reference to FIG.1 and FIG.2. 1A is a plan view of a foundation element 1 according to the present embodiment, FIG. 1B is a side view of the same, FIG. 2A is a bottom view of the same, and FIG. 2B is FIG. It is bb sectional drawing of).
The basic element 1 has a short, substantially quadrangular prism as a basic shape, and the outer peripheral side surface 1a has a tapered shape. That is, the outer peripheral side surface 1a has a tapered shape whose diameter increases from the lower side to the upper side in FIG. This is to facilitate removal from the mold when the foundation element 1 is molded as precast concrete.

  Further, on the upper surface side of the basic element 1, an engaging convex portion 3 is projected and formed. This engaging convex part 3 also has a short quadrangular prism shape. On the other hand, an engagement recess 5 is formed on the lower surface side of the foundation element 1. The engagement recess 5 is formed in a shape such that the engagement protrusion 3 is just engaged. The engagement convex portion 3 and the engagement concave portion 5 function when the base element 1 is laminated, and the engagement of the other base element 1 is placed in the engagement concave portion 5 of one base element 1 adjacent and arranged. The joint protrusion 3 is engaged.

A through hole 7 is formed at the center position of the foundation element 1. As shown in FIGS. 1B and 2B, the through hole 7 has a tapered shape whose diameter is reduced from the lower side to the upper side. The through hole 7 has a quadrangular cross-sectional shape. Further, eyebolt holes 9 are formed on the upper surface of the base element 1.
The eye bolt is used when lifting the foundation element 1 with a crane, and the eye bolt is screwed into the eye bolt holes 9 and fixed. Then, a wire is hung on a hook provided at the tip of the eyebolt, lifted by a crane, and moved / installed at a predetermined location.

  Next, with reference to FIG.3 and FIG.4, the foundation structure using the said foundation element 1 is demonstrated. First, a plurality (four in this embodiment) of basic elements 1 are embedded in the ground in a stacked state. At that time, the engaging convex portion 3 and the engaging concave portion 5 of the basic elements 1 adjacent to each other in the vertical direction in the figure are engaged. Moreover, the through-holes 7 of the respective base elements 1 are in communication with each other.

  A columnar structure 21 is inserted and arranged from above in the communicating through hole 7. The columnar structure 21 has a square cross-sectional shape and is formed in a hollow shape. Further, a slip prevention protrusion 23 is attached to the outer peripheral surface. The slip prevention protrusions 23 are provided on each side of the quadrangle, and are installed so as to correspond to the nuclear foundation elements 1 stacked in four stages. A signboard (not shown) is attached to the top of the columnar structure 21. Further, a grout material 25 is filled and solidified in the gap between the columnar structure 21 and the through hole 7.

  Next, a procedure for installing the columnar structure 21 will be described. First, the hole 31 for burying the foundation structure is excavated. Next, the base element 1 is installed in the hole 31 while being sequentially laminated. At that time, the engaging convex portions 3 and the engaging concave portions 5 of the base elements 1 adjacent in the vertical direction in the drawing are engaged. Next, the hole 31 is backfilled. Next, the columnar structure 21 is inserted into the through-hole 7 communicated, and temporarily fixed with a not-shown stick rod so that the columnar structure 21 does not tilt. Next, the grout material 25 is injected and filled in the gap between the columnar structure 21 and the through-hole 7, and after the grout material is appropriately hardened, the stick rod is removed to complete the process.

As described above, according to the present embodiment, the following effects can be obtained.
First, the work time required for the foundation construction work can be greatly shortened, the work period can be shortened, and the work can be facilitated to greatly reduce the man-hours required for the work. This is because on-site work can be greatly reduced by using a pre-cast concrete foundation element 1 formed in advance. Specifically, it eliminates the need for formwork installation work, reinforcing bar placement work, anchor bolt installation work, concrete placement work, columnar structure anchoring work to anchor bolts, formwork removal work, etc. It is.
Moreover, since the engagement convex part 3 and the engagement recessed part 5 will engage the base elements 1 laminated | stacked, mutual position shift, especially the position shift to a horizontal direction can be prevented.
Moreover, since the outer peripheral side surface 1a of the foundation element is tapered, the foundation element 1 can be easily taken out from the molding die when the foundation element 1 is molded in advance.
Further, the through-hole 7 of the base element 1 has a tapered shape such that its diameter is reduced from the lower side to the upper side, so that the grout material filled and the columnar structure 21 integrated therewith are moved upward. Can be prevented from coming off. Further, the taper shape creates a step between the through holes 7 of the foundation element 1 and prevents the grout material 25 from coming out downward.
In addition, since the columnar structure 21 is provided with the slip prevention protrusion 23, the columnar structure 21 can be prevented from being displaced.
Further, as shown in FIGS. 3 (a) and 4 (a), in the state where the foundation structure is constructed, the engagement convex portion 3 of the foundation element 1 located at the uppermost position protects the columnar structure 21. It functions.

The present invention is not limited to the one embodiment.
First, the shape, size, etc. of the basic element itself are not particularly limited. For example, in the above-described embodiment, a basic element having a square cross-sectional shape is taken as an example, and a configuration in which a through-hole is provided at the center position thereof has been described. A configuration is also conceivable.
Further, the shape, size, number, and the like of the engaging convex portions and engaging concave portions of the basic element are not particularly limited.
Moreover, in the case of the said one Embodiment, although the foundation element was made from the precast concrete, it is not limited to it, For example, it is also considered to make each resin.
The other illustrated configurations are merely examples.

The present invention relates to, for example, a foundation element used as a foundation element for holding various columnar structures and a foundation structure using the foundation element, and in particular, shortens the construction period of the foundation construction work and facilitates the work. For example, it is suitable for a base element used to hold various columnar structures such as display boards, signboards, advertisements, etc. and a base structure using the base element. .

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows one embodiment of this invention, FIG. 1 (a) is a top view of a foundation element, FIG.1 (b) is a side view of a foundation element. 2A and 2B are views showing an embodiment of the present invention, in which FIG. 2A is a bottom view of a basic element, and FIG. 2B is a cross-sectional view taken along line bb in FIG. 3A and 3B are views showing an embodiment of the present invention, in which FIG. 3A is a side view of a basic structure, and FIG. 3B is a cross-sectional view taken along line bb of FIG. 4A and 4B are diagrams showing an embodiment of the present invention, in which FIG. 4A is a side view of a basic structure in which only a columnar structure is shown by a solid line, and FIG. It is.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Foundation element 1a Peripheral side surface 3 Engagement convex part 5 Engagement recessed part 7 Through-hole 21 Columnar structure 23 Detachment protrusion 25 Grout material 31 Excavation hole

  The present invention relates to, for example, a foundation structure using a foundation element used as a foundation element for holding various columnar structures that support display boards, signboards, advertisement boards, and the like. The present invention relates to a device that can be shortened and facilitated work.

The present invention has been made based on such points, and an object thereof is to provide a foundation structure using a foundation element capable of shortening a construction period required for foundation construction work and facilitating the work. There is.

In order to achieve the above object, the basic structure according to claim 1 of the present invention is provided with a through hole that is formed in advance and has a tapered shape whose diameter is reduced from the lower surface side toward the upper surface side, and the outer peripheral side surface is the lower surface side. A base element body having a tapered shape whose diameter increases from the upper surface side toward the upper surface side, an engagement protrusion provided on one of the upper and lower surfaces of the base element body, and the upper and lower sides of the base element body Prepare a plurality of basic elements consisting of engagement recesses provided on one of the other surfaces, and stack them while engaging the engagement projections and engagement recesses facing each other, and in the through hole that is communicated A columnar structure having a protrusion for preventing slippage is inserted and arranged, and a grout material is filled and fixed between the columnar structure material and the through hole .

As described above, according to the basic structure according to claim 1 of the present invention, it is provided with a through hole that is formed in advance and has a tapered shape whose diameter is reduced from the lower surface side toward the upper surface side, and the outer peripheral side surface is the lower surface side. A base element body having a tapered shape whose diameter increases from the upper surface side toward the upper surface side, an engagement protrusion provided on one of the upper and lower surfaces of the base element body, and the upper and lower sides of the base element body Prepare a plurality of basic elements consisting of engagement recesses provided on one of the other surfaces, and stack them while engaging the engagement projections and engagement recesses facing each other, and in the through hole that is communicated A structure in which a columnar structure provided with a locking protrusion is inserted and arranged, and a grout material is filled and fixed between the columnar structure material and the through-hole, so that concrete can be placed. The work at the beginning is greatly Because small, it is possible to achieve simplification of shortening the working construction period required for the basic construction work.
Moreover, since the outer peripheral side surface of the base element body is tapered, the work of taking out the base element from the mold is facilitated.
Further, since the through hole formed in the base element body has a tapered shape such that the diameter thereof is reduced from the lower surface side to the upper surface side, the base element is laminated to form a columnar structure material in the through hole. It is possible to prevent the columnar structure material and the solidified grout material from being inadvertently pulled out after being inserted and arranged and fixed with the gap filled with the grout material.
Further, since the protrusions are provided at the portions of the columnar structures that are inserted and arranged in the through holes, the columnar structures are prevented from being inadvertently displaced and the basic elements from being displaced from each other. be able to.

In order to achieve the above object, the basic structure according to claim 1 of the present invention is provided with a through hole that is formed in advance and has a tapered shape whose diameter is reduced from the lower surface side toward the upper surface side, and the outer peripheral side surface is the lower surface side. A base element body having a tapered shape whose diameter increases from the upper surface side toward the upper surface side, an engagement convex portion provided on the upper surface of the base element body, and an engagement provided on the lower surface of the base element body Base elements that are adjacent and arranged in the stacking direction by preparing a plurality of base elements consisting of joint recesses, and stacking the plurality of base elements while engaging the engaging protrusions and engaging recesses facing each other. A plurality of steps corresponding to the plurality of basic element bodies are formed in the through-holes communicated with each other by forming stepped portions at the outer peripheral boundary portions and forming stepped portions at the boundary portions between the through-holes communicated with each other. Equipped with anti-slip projections at each location And the columnar structure inserted and arranged, is obtained as by filling the grout to secure together the columnar structures each other and the respective base element between the columnar structural material and the through hole.

As described above, according to the basic structure according to claim 1 of the present invention, it is provided with a through hole that is formed in advance and has a tapered shape whose diameter is reduced from the lower surface side toward the upper surface side, and the outer peripheral side surface is the lower surface side. A base element body having a tapered shape whose diameter increases from the upper surface side toward the upper surface side, an engagement convex portion provided on the upper surface of the base element body, and an engagement provided on the lower surface of the base element body Base elements that are adjacent and arranged in the stacking direction by preparing a plurality of base elements consisting of joint recesses, and stacking the plurality of base elements while engaging the engaging protrusions and engaging recesses facing each other. A plurality of steps corresponding to the plurality of basic element bodies are formed in the through-holes communicated with each other by forming stepped portions at the outer peripheral boundary portions and forming stepped portions at the boundary portions between the through-holes communicated with each other. Equipped with anti-slip projections at each location And the columnar structure inserted and arranged, has a configuration which is adapted to secure together by filling the grout a columnar structure interacts with the respective base element between the columnar structural material and the through hole As a result, the work at the site, such as placing concrete, is greatly reduced, so the construction period required for the foundation construction work can be shortened and the work can be facilitated.
Moreover, since the outer peripheral side surface of the base element body is tapered, the work of taking out the base element from the mold is facilitated.
Further, since the through hole formed in the base element body has a tapered shape such that the diameter thereof is reduced from the lower surface side to the upper surface side, the base element is laminated to form a columnar structure material in the through hole. It is possible to prevent the columnar structural material and the solidified grout material from being inadvertently removed after the grout material is inserted and disposed and the gap material is filled and fixed.
Further, since the protrusions are provided at the portions of the columnar structures that are inserted and arranged in the through holes, the columnar structures are prevented from being inadvertently displaced and the basic elements from being displaced from each other. be able to.

Claims (6)

A base element body formed in advance with a through-hole, an engaging projection provided on one of the upper and lower surfaces of the base element body, and an engagement provided on either the upper or lower surface of the base element body A basic element characterized by comprising a joint recess. The basic element according to claim 1,
A base element characterized in that an outer peripheral side surface of the base element main body is tapered. The basic element according to claim 1,
A base element characterized in that the through-hole formed in the base element main body has a tapered shape such that the diameter thereof is reduced from the lower surface side toward the upper surface side. The basic element according to claim 1,
Foundation elements characterized by being made of precast concrete A plurality of basic elements according to any one of claims 1 to 4 are prepared, and they are stacked while engaging engaging convex portions and engaging concave portions facing each other, and a columnar structure is formed in the communicating through hole. A basic structure in which an object is inserted and arranged, and a grout material is filled and fixed between the columnar structure material and the through hole. The basic structure according to claim 5,
A base structure characterized in that a shift protrusion is provided at a portion of the columnar structure that is inserted and disposed in the through hole.

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