JP3256191B2 - An erecting method for erecting and fixing uprights such as columns and poles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing an upright such as a post such as a road sign or a streetlight or a pole such as a pole with respect to the ground.

[0002]

2. Description of the Related Art In a conventional general method, a ground excavation is formed to form a foundation concrete by excavating the ground, and a concrete formwork is provided in the center of the excavation. Concrete is poured so that the lower part of the anchor bolt is housed in the concrete formwork to form a foundation concrete.

After the concrete has hardened, the concrete form is removed and the space between the inner surface of the excavated portion and the outer peripheral surface of the foundation concrete is further filled with earth and sand or concrete, and the concrete is fixed while projecting from the upper surface of the foundation concrete. Fix the standing object via the anchor bolt.

However, in this conventional general concrete foundation method, a hole having an interval and a depth enough to allow an operator to enter the concrete form after the concrete form has been hardened until the poured concrete hardens. It is dangerous because it exists between the inner surface of the excavation part and the concrete formwork, and safety must be maintained at night until the formwork is removed and the holes are filled after the concrete has hardened.

[0005] Further, the standing strength of the standing object by the foundation concrete is not sufficient because the concrete is simply poured into the excavated portion.

Therefore, conventionally, a long object such as, for example, H steel is driven into the ground, and the periphery of the upper portion of the H steel is excavated.
A method of welding a detent plate to steel and further welding a plurality of anchor bolts to the upper end of the hammered H steel has been proposed.

In this H-steel driving method, standing strength can be secured to some extent by driving a long H-steel compared to the above-mentioned general conventional method, and no foundation concrete is poured. As described above, since there is no dangerous hole where a person falls on this construction site until the concrete is hardened, the above-mentioned safety management is unnecessary.

[0008] However, this method has a problem in that the vibration at the time of driving the H steel is large, and in addition, a member for stopping rotation (stabilization) is welded to the H steel driven as described above, We have to weld anchor bolts to steel.

[0009] It is very troublesome to perform such a welding operation for firm connection in the field.

The present invention finds out that such conventional methods have such problems, and solves them.
By driving the long pipe as a pile, the falling strength is improved and the holding strength is improved in the same manner as the conventional H steel driving method, and the troublesome welding work for firmly connecting is eliminated, and the anchor bolt is used. The pile body can be integrated with concrete, and the use of the concrete foundation method also improves the anti-rotation strength and dramatically improves the holding strength. Because it is cast, it is not necessary to remove the formwork, so there is no need to leave holes for people to fall until the concrete hardens, and safety management is not required. It can provide a construction method.

That is, according to the present invention, by combining the revolutionary creation of a concrete foundation construction method using a concrete block and a construction method using a pile body, a pile body and an anchor bolt are integrated with this concrete, and the pile body and the pile body are integrated. It is possible to provide an epoch-making construction method which is extremely excellent in holding strength, excellent in workability and excellent in safety by both of the basic concrete.

[0012]

The gist of the present invention will be described with reference to the accompanying drawings.

[0013] The standing設物1 such as struts or poles, a standing設工method through the anchor bolt 3 fixed to the ground 2 side upright fixed on the ground 2, the elongate tubular body into the ground 2 Kuitai 4 and
In addition to embedding the pile body 4 before or after embedding the pile body 4, a portion around the upper end portion of the pile body 4 is excavated to dig the pile body 4.
The excavated portion 5 is formed such that the tip of the extruded portion protrudes from the bottom, and a preformed or existing concrete block 6 is formed so as to surround the protruding exposed portion 4A of the pile 4 in the excavated portion 5. installed in the excavation section 5, this concentrated
The reed block 6 has a core for pouring concrete.
In order to function as a concrete formwork,
Surrounds the projected exposed portion 4A of the pile 4 that is projected and exposed from the bottom.
It has a cylindrical shape with a predetermined length and an open top and bottom.
The cylindrical shape of this concrete block 6 is cylindrical.
Set to a shape that becomes a detent shape in the horizontal direction without doing
And, together with fills the gap 7 between the outer peripheral surface and the inner surface of the drilling unit 5 of the concrete block 6, the concrete
A position surrounding the projecting exposed portion 4A of the pile 4 in the block 6
The anchor bolt 3 to the frame-shaped mounting portion 3A that is stored and held
In front of the mounting portion 3A with a plurality of anchor bolts 3
Directly on the protruding exposed portion 4A of the pile body 4 or metal fittings or mountings
The by temporarily fixed is held by welding through, after standing holding the anchor bolt 3 of several to a predetermined position within said concrete block 6, pouring <br/> concrete to the concrete block 6, the concrete When the anchor bolts 3 are hardened, the pile 4 and the anchor bolts 3 under the ground are integrated with each other via the hardened concrete in a state where the anchor bolts 3 project from the upper portion, and the anchor bolts 3 are projected through the exposed bolts 3. The present invention relates to an erecting method for erecting and fixing erecting objects such as columns and poles, wherein the erecting object 1 is erectly fixed on the ground.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

The present invention relates to a pile 4 suspended and buried in the ground 2.
Since the (long tube) and the anchor bolt 3 are integrally fixed by the concrete forming the concrete foundation 6 ', the overturning strength is improved by the long pile 4 (sufficient overturning depends on the depth of the burial). Can counter the moment)
At the same time, the anti-rotation (anti-sway) strength is improved by the concrete base portion 6 ′ (it is possible to counter the rotational moment by forming the anti-rotation shape). The installation holding strength is dramatically improved.

The anchor bolt 3 is fixed by welding.
Since it is temporarily fixed to the pile body 4 and then fixed by concrete, it does not require troublesome welding work for firm connection at the site, and a simple temporary fixing that does not shift position when pouring concrete is sufficient. Do Ri, moreover pile body 4 integrally
It becomes extremely high in strength.

Further, the formation of the concrete foundation 6 'does not require a troublesome work of temporarily setting a form which needs to be removed into the excavated portion 5 around the upper end of the pile 4, and merely requires the concrete block 6 When the concrete is poured into the concrete block 6 to form the concrete foundation 6 ′, the gap between the outer peripheral surface of the concrete block 6 and the inner peripheral surface of the excavation section 5 is previously determined. Since 7 can be filled with earth and sand or concrete, there is no dangerous space (hole) until the concrete hardens, and there is no need for safety management.

Further, since the holding strength is improved by burying the pile body 4 deep in the ground, it is not necessary to form the concrete foundation 6 'so deeply. If the piles 4 are driven in such a way as to avoid them, it is possible to form the concrete foundation 6 ′ having a high holding strength without hindering them.

Accordingly, the amount of excavated soil is small and can be backfilled on the same day, and sufficient strength can be obtained even if the opening of the excavated portion 5 is small. It is extremely effective.

Further, it can be said that the construction method has less restrictions on underground obstacles, land, and the like, and has a merit that the foundation weight can be reduced and that it is not affected by the supporting ground.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

A long pile 4 is buried in the ground 2.

In this embodiment, a steel pipe 4 having a circular cross section is driven and buried as a long pile 4.

The steel pipe 4 is easily available and has high strength.
It is easy to drive and has little impact on surrounding environment with little vibration and noise.

More specifically, a pre-boring milk is used for the final boring method, which is a low-vibration method.

After the pile 4 is buried or before it is buried, a portion around the upper end of the pile 4 is dug down by an excavator, a shovel car or the like to form an excavated portion 5 recessed from the ground 2. Since the excavated portion 5 can be expected to have a sufficient holding strength as described above, the excavated portion 5 may be small, the amount of unloaded material may be small, and the opening may be small.

At this time, as shown in FIG. 1, the upper end of the pile 4 is exposed from the bottom of the excavated portion 5.

Then, as shown in FIG. 2, a preformed or existing concrete block 6 is immediately inserted into the excavation part 5 so as to surround the protruding exposed part 4A of the pile 4 in the excavation part 5. Install.

The concrete block 6 functions as a concrete form (a form wall also serving as a retaining wall) for pouring concrete, and the projecting exposed portion 4A of the pile 4 projecting from the bottom of the excavated portion 5 is exposed. A concrete inflow opening 5A is provided at the upper part, and a predetermined amount of concrete can be poured from the opening 5A in a state where the lower part of the anchor bolt 3 is housed and held. Anchor bolt 3 and pile 4
Have a capacity to firmly integrate them.

The concrete block 6 is set in a detent shape, for example, a square shape, in which the concrete base part 6 'hardened by flowing the concrete into the concrete block is prevented from rotating in the horizontal direction. .

Specifically, the cost is reduced by using a box culvert (concrete mass) which is easily available and is an existing molded product.

That is, by setting a rectangular cylindrical shape having a predetermined cylindrical length with upper and lower openings, and installing this rectangular cylindrical concrete block 6 in the excavation part 5, the projecting exposed part of the pile 4 is formed. 4A is a concrete foundation part which is surrounded by the cylindrical wall of the concrete block 6 and which integrates the anchor bolt 3 and the pile 4 which are stored and held in the concrete block 6 by pouring concrete from an upper opening. 6 ′ is formed, and the concrete block 6 is not made cylindrical, but adopts a rectangular tubular concrete block 6 that is not detented in the horizontal direction.

Then, as shown in FIG. 3, a gap 7 between the outer peripheral surface of the concrete block 6 and the inner surface of the excavated portion 5 is formed.
Is filled with earth and sand, and a plurality of anchor bolts 3 are erected and held at predetermined positions in the concrete block 6, and then concrete is poured into the concrete block 6, and the concrete is hardened so that the anchor bolts 3 project from the upper part and are exposed. Then, the pile 1 is integrated with the underground pile 4 via the hardened concrete, and the standing object 1 is erected and fixed on the ground via the projected and exposed anchor bolts 3.

Specifically, as shown in FIGS. 3 and 4, a plurality of the anchor bolts 3 are erected on a mounting portion 3A which is stored and held at a predetermined position in the concrete block 6, and this mounting portion 3A is mounted on the concrete block 6. directly projecting the exposed portion 4 a of Kuitai 4 or via a bracket or fixture is temporarily fixed holding, pouring concrete into the concrete block 6 is secured to the projecting exposed state from the upper surface of the cured concrete foundation 6 ' Like that.

For example, a wire (reinforcing bar) is erected between the inner surfaces of the concrete blocks 6 near the projecting exposed portions 4A of the piles 4 and a plurality of anchor bolts 3 are juxtaposed to form a frame-shaped mounting portion 3A. It is easily welded to the wire and temporarily fixed.

This welding work is not a troublesome work since it is sufficient that the anchor bolt 3 is temporarily fixed so as not to be displaced when the concrete flows.

[0037]

Since the present invention is constructed as described above, it is possible to improve the fall strength and the holding strength by driving a long pipe body as a pile, and to eliminate the need for troublesome welding work, thereby making the anchor bolt unnecessary. And this pile body can be integrated with concrete, and since the concrete foundation is formed, the detent strength is also improved and the holding strength is dramatically improved, further using concrete blocks instead of concrete formwork Since the foundation concrete is cast, it is not necessary to remove the formwork, so there is no need to leave holes for people to fall until the concrete hardens, and safety management is not required. It becomes a typical standing construction method.

That is, according to the present invention, by combining the groundbreaking creation of a concrete foundation method using a concrete block with a method using a pile, a pile and an anchor bolt are integrated with this concrete, and the pile is integrated with the concrete. Both of the foundation concretes provide a groundbreaking construction method that excels in holding strength, workability, and safety.

Further , since a long pipe is used as the pile , the cost can be further reduced and the pile can be easily buried. In the case of the burial, the pile can be easily driven and can be buried with low vibration. It will be an upright construction method to fix uprights such as poles and poles.

Further, improved more holding strength by detent action of the concrete foundation, especially, for employing further easily moldable concrete blocks, for example, the existing best availability easy concrete mass as concrete block It is an upright construction method that can be adopted and that stands up and fixes upstanding structures such as poles and poles that are extremely practical.

Further, more easy to be fixed work A Nkaboruto, a standing設工method operation and effect to fixed erected standing設物such posts or poles be more reliably exhibit the present invention.

[Brief description of the drawings]

FIG. 1 is an explanatory cross-sectional view showing a state in which a pile body of the present embodiment is buried and an excavation portion is formed at an upper end of the pile body.

FIG. 2 is an explanatory cross-sectional view of a state in which a concrete block is installed in a digging portion of the present embodiment and a gap around the concrete block is filled with earth and sand.

FIG. 3 is a perspective view showing that an anchor bolt is inserted into a concrete block of the present embodiment and temporarily fixed, and before concrete is poured.

FIG. 4 is an explanatory perspective view showing a state where concrete is poured into the concrete block of the present embodiment.

FIG. 5 is an explanatory cross-sectional view showing that a standing object is erected and fixed via anchor bolts protruding from the upper surface of a concrete foundation after hardening of concrete according to the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Standing thing 2 Ground 3 Anchor bolt 3A Mounting part 4 Pile body (steel pipe) 4A Projection exposed part 5 Excavation part 6 Concrete block 7 Gap

Continuation of the front page (56) References JP-A-9-78608 (JP, A) JP-A-4-92022 (JP, A) JP-A-2-164932 (JP, A) JP-A-9-60008 (JP) , A) Japanese Utility Model Hei 5-71242 (JP, U) Japanese Patent Publication No. 6-70326 (JP, B2) Japanese Patent Publication No. 4-80162 (JP, B2) (58) Fields surveyed (Int. Cl. ⁷ , DB) Name) E02D 27/00

Claims (1)

(57) [Claims] 1. An erecting method for erecting a standing object such as a column or a pole on the ground via an anchor bolt fixed to the ground side, wherein a long tubular body is buried as a pile on the ground. At the same time, after or before the embedding of the pile, a portion around the upper end of the pile is excavated to form an excavated portion in which the tip of the pile protrudes from the bottom and is exposed. A pre-formed or existing concrete block is installed in the excavation section so as to surround the protruding exposed portion of the pile body, and the concrete block is
Function as a concrete formwork for pouring
A protrusion of the pile body that is exposed from the bottom of the excavation part.
Cylindrical shape of predetermined cylinder length surrounding the exposed part and opening at the top and bottom
And the cylindrical shape of this concrete block
Shape that is not detented in the horizontal direction without being cylindrical
With set, fills the gap between the outer peripheral surface and the inner surface of the excavation of the concrete block, the concrete
Store and secure the block in a position surrounding the exposed portion of the pile
Multiple anchor bolts are erected on the frame-shaped mounting part to hold
This mounting part with an anchor bolt is attached to the projecting exposed part of the pile.
Temporary holding by welding directly or through metal fittings or fixtures
By lifting, after standing hold the anchor bolts of the double <br/> number at a predetermined position within the concrete block, this concentrated
Pour concrete into the reed block and integrate the pile and anchor bolts underground via the hardened concrete in a state where the anchor bolts are projected and exposed from the upper part by hardening of this concrete,
An erecting method for erecting and erecting erecting objects such as columns and poles, wherein the erecting object is erectly fixed to the ground via the protruding and exposed anchor bolts.