JPH0160618B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a slope protection method in which a formwork is formed on a slope and concrete or mortar is poured into the formwork to form a slope.

Various construction methods are known for forming a legal framework using formwork. However, in many of the conventional construction methods, formwork is installed on the slope and reinforcement is placed between the formworks to connect the formworks, which has the disadvantage that assembly work on site is laborious and time-consuming. It was hot.
Furthermore, if the formwork is connected in advance with spacers or the like and then transported to the site, the formwork is bulky and difficult to transport.

Therefore, an object of the present invention is to provide a slope protection method that allows the formwork to be easily transported to the site and the formwork to be assembled at the site.

According to the present invention, a formwork unit is prepared by pivotally connecting a pair of paper formworks whose ends are bendable by a plurality of reinforcing bars, and the formwork unit is expanded to form the above-mentioned paper formwork. The formwork units are fixed in an expanded state by connecting reinforcing bars diagonally with connecting rods, a large number of formwork units are placed on a slope, and both end edges of the paper formwork are bent at a predetermined angle. They are connected by a connecting member, and concrete or mortar is poured between the pair of paper forms.

Therefore, the formwork unit can be folded up by pivoting the connecting parts of the reinforcing bars and can be transported to the site in a compact form. In addition, on-site work is easy because the formwork can be assembled simply by spreading out the formwork unit, fixing it in the spread state with connecting rods, and connecting both ends of the paper formwork with connecting members. . Further, since the reinforcement is arranged using reinforcing bars provided in advance on the formwork unit and connecting rods that fix the formwork unit in an expanded state, the reinforcement work on site can be greatly simplified.

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

As shown in FIG. 1, a pair of paper forms 1, 1 made of reinforced corrugated paper or the like are prepared, and both edges 1a of the forms are made bendable. Reinforcement made by assembling two horizontal reinforcements 2, 2 and two vertical reinforcements 3, 3 in a grid pattern, welding their intersections, and bending both ends of the horizontal reinforcements 2, 2 into an L-shape. Prepare the muscle 4. Three sets of reinforcing bars 4 are placed between the paper forms 1, 1 at predetermined intervals. Fasteners 5 are provided at the portions where the bent portions at both ends of the horizontal stripes 2 of the paper forms 1, 1 come into contact. As shown in FIGS. 2 and 3, this fastener 5 has a hook 7 having spring properties protruding from the center of a mounting plate 6, and a notch 8 formed at the base of the hook 7. In addition, cylindrical ribs 9 are provided at both ends of the mounting plate 6.
It curves to form a 9. And paper formwork 1,1
Insert the hook 7 through the through hole 10 from the outside of the
And round holes 1 provided on both sides of the through hole 10
The fastener 5 is attached to the paper forms 1, 1 by fitting the cylindrical ribs 9, 9 to the paper forms 1, 11. Furthermore, the bent portions at both ends of the horizontal reinforcement 2 of the reinforcing reinforcement 4 are attached to the respective fasteners 5.
By fitting into the hook 7 of the paper formwork 1, the paper forms 1, 1 are pivotally connected to form a formwork unit 12. Therefore, the formwork unit 12 can be folded by pivoting the bent portions at both ends of the transverse reinforcement 2.

On the other hand, a connecting rod 13 is prepared to connect the longitudinal reinforcements 3 of adjacent reinforcing reinforcements 4 that are located diagonally in the state shown in FIG. 1. This connecting rod 13 has annular parts 14, 14 formed by bending both ends, and by inserting the annular parts 14, 14 into the vertical bars 3, 3, the vertical bars 3, 3 are connected in a spiral shape. death,
The formwork unit 12 is fixed in an expanded state.

Then, a large number of formwork units 12 are folded and a large number of connecting rods 13 are bundled together and transported to the site, where the formwork units 12 are unfolded and the vertical bars 3, 3 located diagonally are connected with the connecting rods 13. The formwork unit 12 is fixed in an expanded state.

Next, each formwork unit 12 is placed on the slope. In that case, for example, when forming a lattice-like legal frame, each formwork unit 12 is arranged so as to constitute one side of a substantially square frame. And the fourth
As shown in the figure, the edges 1a of the paper form 1 are bent outward at a predetermined angle of 45 degrees in this embodiment, and the edges 1a are abutted between adjacent form units 12. In this case, each paper formwork 1, 1 has 1 through hole.
5, 15 are formed, and notch grooves 16, 16 are formed in each end edge 1a, 1a, and the notch grooves 16, 16 are located at mutually compatible positions. These edges 1a, 1a are connected by a connecting member, and in this embodiment, the connecting member is a connecting plate 17 and presser fittings 20, 21, as shown in FIG.
and three wedges 22. Connecting plate 17
Both ends are bent at a predetermined angle, 45 degrees in this embodiment, and are attached to the outside of the edges 1a, 1a of the paper forms 1, 1. At both ends of the connecting plate 17, through holes 15, 1 of the paper forms 1, 1 are provided.
Through holes 18, 18 corresponding to 5 are bored,
In addition, a through hole 19 corresponding to the notch grooves 16, 16 of the end edges 1a, 1a is bored in the center of the connecting plate 17. Further, the presser metal fitting 20 is provided with a U-shaped bent portion 20a at the center. Furthermore, the presser metal fitting 21 is provided with a U-shaped bent part 21a in the center, and both end parts 21b, 21b are bent at a predetermined angle of 45 degrees in this embodiment.
It is adapted to be attached to the inner side of the end edges 1a, 1a. Then, the bent portion 20a of the presser metal fitting 20 is connected to the through holes 15, 15 of the paper forms 1, 1 and the connecting plate 17.
into the through holes 18, 18 respectively, and insert the wedges 22, 22 into the outer protrusions of the presser metal fittings 2.
Fix 0,20. Similarly, presser metal fitting 21
The bent portion 21a of the edge 1a, the notch groove 1 of 1a
6, 16 and the through hole 19 of the connecting plate 17,
Insert the wedge 22 into the outer protrusion and press the presser metal fitting 2.
Fix 1. As a result, as shown in FIG. 5, the edges 1a, 1a of the paper forms 1, 1
7 and presser metal fittings 20 and 21, and are firmly connected. Incidentally, an annular groove 23 as shown in FIG. 6 is formed at the base of each bent portion 20a, 21b of the presser fittings 20, 21.

In this way, by sequentially connecting the edges 1a of the paper form 1, a lattice form 24 as shown in FIG. 7 can be formed. In this case, a cross-shaped connecting fitting 25 as shown by imaginary lines in the figure may be provided at the portion where the formwork units 12 are connected in a cross shape. In addition, anchor bolts etc. driven into the slope are fixed to the reinforcing bars 4 and the formwork 2
4 is preferably firmly fixed on the frame surface. Furthermore, if necessary, main reinforcing bars may be provided in the longitudinal direction of the formwork 24 to further strengthen the reinforcing structure.

Then, concrete or mortar is poured into the portion of the completed formwork 24 sandwiched between the pair of paper formworks 1, 1 by means such as spraying to form a legal frame. Therefore, the reinforcing bars 4 and the connecting rods 13 are buried in concrete or mortar. Then, pull out the wedge 22, remove the connecting plate 17, and use a hammer or the like to
a, 21a and break off the bent portions 20a, 21a at the annular groove 23. Furthermore, the mounting plate 6 is struck with a hammer or the like to break off the mounting plate 6 at the notch 8 of the hook 7. Finally, the paper form 1 may be peeled off, or it may be left as is and buried in soil, etc. placed in the recess 26 of the legal frame, and digested as a component in the soil.

In the above embodiment, a lattice-shaped legal frame is formed, but it is also possible to form a triangular legal frame by bending the edges 1a of the paper forms 1 by 60 degrees and connecting them. be.

As explained above, according to the present invention, a formwork unit is prepared by pivotally connecting a pair of paper formworks whose ends are bendable by a plurality of reinforcing bars. The formwork unit can be folded and transported to the site in a compact state. In addition, the formwork unit is spread out and the reinforcing bars are connected diagonally with connection rods to fix the formwork unit in the spread out state, and a large number of formwork units are placed on the slope.
Since both end edges of the paper form are bent at a predetermined angle and connected by a connecting member, assembly of the form on site is easy. Furthermore, when pouring concrete or mortar between a pair of paper forms, reinforcing bars and connecting rods form a reinforcement structure, which greatly simplifies reinforcement work. Furthermore, since the edges of the paper forms are bent at a predetermined angle and connected, the corners of the recesses of the legal frame are chamfered, resulting in a shape that is aesthetically pleasing.

[Brief explanation of drawings]

Figure 1 is a perspective view of the formwork unit, Figure 2 is a perspective view of a fastener used in the formwork unit, and Figure 3 is a perspective view of the formwork unit.
FIG. 4 is an exploded perspective view of the connecting member, FIG. 5 is a perspective view showing a state connected by the connecting member, and FIG. 6 is a perspective view of the hook of the fastener. FIG. 7 is a plan view showing the bent portion of the presser fitting, and FIG. 7 is a perspective view showing the formwork. DESCRIPTION OF SYMBOLS 1... Paper formwork, 1a... Edge, 2... Horizontal reinforcement, 3... Vertical reinforcement, 4... Reinforcement bar, 5... Fastener, 12... Formwork unit, 13... Connecting rod, 14... Annular part, 17... Connecting plate , 20, 21... Presser fitting, 20a, 21a... Bent part, 22... Wedge, 24... Formwork.

Claims (1)

[Claims] 1. A formwork unit is prepared by pivotally connecting a pair of paper formworks whose ends are bendable by a plurality of reinforcing bars, and the formwork unit is expanded and the reinforcing bars are connected to the connecting rods. The formwork units are fixed in an expanded state by connecting them diagonally with the paper formwork, placing a large number of formwork units on a slope, bending both ends of the paper formwork at a predetermined angle, and connecting them with a connecting member. A slope protection construction method characterized in that concrete or mortar is poured between the pair of paper forms.