JPH044033Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a slope structure for reinforcing the ground, which is implemented to protect the sloped ground.

[Conventional technology]

Concrete slope frames are installed as a method of reinforcing slopes and other sloping ground, but recently, in order to simplify and improve the efficiency of construction, steel mesh structures have been installed on slopes. Building a ground reinforcement structure by erecting a frame, placing reinforcing bars between the forms, fixing the reinforcing bars to the slope with anchor bolts, and pouring concrete between the forms (one example) As a special public official in 1977-
46361, Japanese Patent Publication No. 54-26801).

[Problem that the invention attempts to solve]

However, since the construction materials of the conventional legal frameworks mentioned above are made of steel, they are heavy, making assembly of the formwork and reinforcing work extremely difficult and inefficient, especially on slopes where workability is poor. The disadvantage is that it is bad. In addition, structures constructed using this method are susceptible to natural influences such as rainwater due to insufficient concrete cover and cracks in the concrete because concrete reinforcing materials such as reinforcing steel are buried inside. Concrete reinforcing materials such as reinforcing bars corrode due to man-made environmental influences such as exhaust gas, etc.
The problem is that it expands, causing deterioration of the structure and making it impossible to fulfill its original purpose.

This invention was devised to solve these problems, and by using a special formwork that also serves as reinforcement and is made of a lightweight and strong material instead of steel, it improves workability. The present invention aims to provide a ground reinforcement structure that has extremely good performance, is easy to assemble at slope intersections, can be constructed with high efficiency, is strong, and has no risk of deterioration.

[Means for solving problems]

The structure of the present invention will be explained with reference to the drawings corresponding to the embodiments. 2, 2 and a net-like body 3 are integrally formed and hardened, the formworks 1, 1 are arranged in parallel on the slope ground 4, and the intersection position with other structures is The formworks 1, 1 located at
Engagement notches 10a, 10b except one of 2
are formed, the notches 10a and 10b are engaged with each other, and the notched shaft reinforcements are connected by separately prepared shaft reinforcements 2c and 2c. It is characterized by being buried in concrete poured between forms.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

In the structure of the present invention, the formwork 1 which also serves as reinforcement,
Use 1. As shown in FIG. 5, the formwork 1 is formed of shaft reinforcements 2a, 2b arranged in parallel at intervals, and a mesh body 3 disposed between the shaft reinforcements 2a, 2b. The shaft reinforcements 2a, 2b and the mesh body 3 that make up the formwork 1 are made by impregnating lightweight, high-strength fiber bundles with a highly corrosion-resistant resin material and having a coefficient of thermal expansion comparable to that of hardened steel. The intersections x, x of the axial reinforcements 2a, 2b and the mesh body 3 are bound in a state in which fiber bundles are alternately overlapped, and the axial reinforcements 2a, 2b are thick, and the mesh structure 3 is thin. It is formed. The above-mentioned fibers are preferably glass fibers, carbon fibers, aramid fibers, etc., but other materials such as synthetic resin fibers, ceramic fibers, etc., or a suitable combination of these fibers can also be used. In addition, as the resin material for binding the fibers, vinyl ester resin, etc., which has good adhesion to the fibers and excellent corrosion resistance, is suitable, and other resins include unsaturated polyester resin, epoxy resin, phenol resin, etc. can be mentioned. This formwork 1 is manufactured as a fixed-size object suitable for transportation, and is carried to a construction site and used.

The structure of the present invention includes the above-mentioned formwork 1, formwork 1,
1 at a predetermined interval, and concrete 8 such as concrete or mortar.

A beam-like or column-like part of a structure is constructed by placing formworks 1 and 1 facing each other at a required interval on a sloped ground 4, as shown in Figs. 1 and 1 are connected to each other by constructing stoppers 5, 5 at various places between the upper shaft reinforcements 2, 2. Furthermore, at the intersection of the structures, the formworks 1, 1 are assembled in an intersecting manner. In this case, generally, the formworks 1 and 1 are interrupted at the point where they intersect and are butted against the other formwork 1 and assembled. This is not desirable because the strength at the intersection is considerably reduced. Therefore, in the present invention, as shown in FIGS. 6 and 7, a notch is provided at the intersection of the formwork 1 for engagement with another formwork. That is,
As shown in FIG. 6, one of the intersecting formworks 1, 1 has the shaft bar 2b on one side spread over a width l corresponding to the width of the other formwork 1, 1 opposed at an interval. At the same time, the reticular body 3 is also resected along its width up to the axial muscle 2a on the other side. As a result, the notch 10a is formed leaving the shaft reinforcement 2a on the other side. In addition, the other formwork 1, 1 that intersects,
As shown in FIG. 7, a notch 10b is formed by cutting out the axial muscle 2b on one side and the mesh member 3 connected therearound over the same width l as described above. In addition, the formwork 1 is not made of two types like this,
Although not shown, the intersecting parts of the formwork 1 can be achieved by cutting out approximately half of the muscle shafts 2a and the net-like body 3, respectively, to cross-connect the formworks 1 of one type to each other at the notched parts. can be done.

As shown in FIGS. 1 and 4, assembly at the intersection of the formworks 1 and 1 having the cutouts 10a and 10b is performed, for example, when one of the formworks 1 and 1 is formed with the notches 10a and 10b.
is erected with the unremoved axial reinforcement 2 facing upward, and the other formwork 1, 1 is placed in a notch in one formwork 1, 1 with the removed axial reinforcement 2b facing upward. 1
0a to bring it into engagement. As a result, as shown in the figure, the end surfaces of the cut axial reinforcements 2b, 2b of one formwork 1, 1 are not cut out and are passed through the other formwork 1, 1, so that the axial reinforcement 2b
a, 2a, and the end surfaces of the cut axial reinforcements 2b, 2b of the other formwork 1, 1 are in contact with the outer surfaces of the axial reinforcement 2a of the other formwork 1, 1, which are not cut and are passed through. , 2a, and any of the shaft reinforcements of each formwork 1 is placed in a through state even at the intersection points. The excised axial reinforcements 2a and 2b are connected to each other by a separately prepared axial reinforcement 2c for connection. In this way, a high-strength assembly structure can be obtained without degrading the strength of the orthogonal portions of the formworks 1,1.

At the intersection of the formworks 1, 1, anchors 7 are usually installed. anchor 7
As shown in FIGS. 1 and 3, this facility constructs an anchor connecting material 6 between the upper shaft bars passing through the intersection, and connects the anchor 7 to the formwork 1, The aim is to connect 1 and the earth 4. In addition,
Since the size of the slope varies depending on the construction conditions, the length of the beam-like or columnar part of the slope will also vary accordingly, but since formwork 1 is of a fixed length, it can be adjusted horizontally and vertically at the site. Can be assembled in a continuous frame. In addition, the end portions can be cut to a required length or added, and then assembled to a predetermined size.

After assembling formworks 1 and 1 and installing anchor 7,
Concrete type 8 such as concrete or mortar is poured between the formworks 1 and 1, and the formwork is placed in concrete type 8.
It is buried inside.

Note that the formation of the notch at the intersection of the formwork 1 is performed by forming two forms, one having a notch 10a as shown in FIG. 6 and the other having a notch 10b as shown in FIG. Although it is a kind of thing, it is not limited to this, for example, it is also possible to use a formwork with a cutout 10a as shown in Fig. 6 for both of the intersecting formworks 1, 1. .

Figures 8 and 9 are the formwork 1 in each design.
This shows another example of the mesh body 3 of the formwork 1.
may be a combination of upright members 3a and diagonal members 3b as shown in FIG. 8, or diagonal members 3c, 3c as shown in FIG.
may be formed by intersecting each other to form a net shape. In short, as the mesh body 3 of the formwork 1, the shaft reinforcements 2a, 2b
The structure itself is not limited in any way as long as it can connect the concrete 8, act as a shear reinforcing bar, and prevent the poured concrete 8 from flowing out.

Further, FIG. 10 shows still another embodiment of the formwork 1, in which the shaft reinforcements 2, 2 and the mesh body 3 are not located on the same plane, and the mesh body 3 is The axial reinforcements 2, 2 are positioned at intervals in the transverse direction. In this case, the reticular body 3
is formed by removing the axial reinforcements 2, 2, and the axial reinforcements 2, 2
is formed separately from the net-like body 3. That is, the axial reinforcements 2, 2 are formed by integrally connecting the upper and lower ends thereof with a large number of connecting reinforcements 9, 9 made of thin U-shaped fiber bundles bent in the same direction. Then, as shown in the figure, the connecting bars 9, 9 are attached to the net-like body 3, and are connected by binding materials 10, 10, such as resin wire rods. In the formwork 1 of this embodiment, as shown in FIG.
When the formworks 1, 1 are assembled, the shaft reinforcements 2, 2 can be located considerably inwardly than the mesh bodies 3, 3. Therefore, since the shaft reinforcements 2, 2 will be buried sufficiently deep from the surface of the concrete 8 that has been placed, there will be no problem even if there is a small amount of concrete covering the net-like bodies 3, 3, and the formwork will not be affected. It becomes possible to reduce or omit the spraying of concrete for burying the formworks 1 and 1, which is performed after pouring the concrete 8 between the spaces 1 and 1, which further simplifies the construction. Become.

As for the formwork 1 in which the shaft reinforcements 2, 2 can be located deeper than the net-like body 3 as in this embodiment, other examples shown in FIGS. 12 and 13 can also be considered. That is, in the example shown in FIG. 12, the net-like body 3 is bent in such a manner that its upper and lower portions protrude inwardly, and the axial reinforcements 2, 2 are integrally connected to the protruding ends. Further, in the example shown in FIG. 13, the upper and lower parts of the net-like body 3 are bent inwardly, and the shaft muscles 2, 2 are located in the middle of the bent parts 12, 12.

In each of the above embodiments, two axial reinforcements are provided, one above the other, but the number of axial reinforcements can be increased or decreased as appropriate. Furthermore, if the notch is reinforced with lap joint reinforcement, the structure of the intersection can be made even more preferable.

[Effect of idea]

As explained above, the structure of the present invention consists of a fiber bundle made of lightweight, high-strength fibers impregnated with a highly corrosion-resistant resin material. The formwork is
The formwork is arranged in parallel on the slope ground, and a notch for engagement is formed in the formwork at a position where it intersects with another structure, leaving at least one shaft bar across the width of the intersect. The notches are engaged with each other, and the notched shaft reinforcements are connected by separately prepared shaft reinforcements. It is characterized by being buried, and since it uses a formwork that also serves as reinforcement, reinforcement can be placed at the same time by assembling the formwork, and the integration between formwork assembly and reinforcement is easy. Work is greatly simplified. and,
The formwork that also serves as reinforcement is corrosion resistant and extremely lightweight, and almost no steel materials are used in the legal framework structure, making it easy to work on slopes where workability is particularly poor. This allows for efficient and inexpensive construction, and there is no fear that buried materials will corrode due to natural influences such as rainwater or man-made influences such as exhaust gas, leading to deterioration of the structure. The reinforcing and reinforcing formwork located at the intersection is assembled with a part of the shaft reinforcement passing through each of the intersecting formworks, so the strength of the intersection of the structure is ensured, and the structure is strong. It has many advantages, such as being able to construct and stabilize it over a long period of time.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a longitudinal sectional view of the intersection, Fig. 2 is a longitudinal sectional view of the beam-like part, and Fig. 3 is an overall plan sectional view of the legal frame. Figure 4 is a slope view showing the state of the intersection of the formwork that also serves as shaft reinforcement, Figure 5 is a slope view of the formwork that also serves as shaft reinforcement, and Figures 6 and 7 respectively show the type of shaft reinforcement that is used at the intersection. Front view of the frame, Figures 8, 9, 10, 12,
13 are perspective views showing other embodiments of the same formwork, and FIG. 11 is a vertical sectional view showing an example using the formwork of FIG. 10. 1... Formwork, 2a, 2b... Axial reinforcement, 3... Reticular body, 4... Earth, 7... Anchor, 8... Concrete, 10a, 10b... Notch.

Claims (1)

[Scope of utility model registration request] A formwork consisting of fiber bundles made of lightweight, high-strength fibers impregnated with a highly corrosion-resistant resin material, and a plurality of axial reinforcements and a net-like body are integrally formed and hardened. In the formwork that is parallel to the surface of the pile and intersects with other structures, engagement notches are formed across the width of the intersection, leaving at least one shaft bar, and these notches are engaged with each other, and their notched shaft reinforcements are connected with separately prepared shaft reinforcements, and each of the above formworks is buried in concrete poured between the formworks. A ground reinforcement structure characterized by: