JP2000282471A - Banking reinforcing member and structure for connecting the same to synthetic resin net - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and non-separably connect synthetic resin nets to banking reinforcing members having good constructibility and capable of preventing collapse of banking. SOLUTION: Welded wire gauze comprising vertical metallic wires 10 and lateral metallic wires 11 welded together in the form of a grid is bent in its middle at an acute angle whereby an inclined wire gauze part 12 inclined at an angle approximately equal to the inclination angle of a face of slope P of banking and a horizontal wire gauze part 13 are formed integrally with each other, with the rear ends 10b of the vertical metallic wires 10 of the horizontal wire gauze part 13 bent diagonally upwards to form a banking reinforcing member 1. First connecting bars are passed through a line of meshes formed by folding back an end edge of a synthetic resin net 2 by 180 degrees and laying the end edges of the net 2 one above the other, and the folded end of the net 2 is pulled out from the underside of the lateral metallic wire 11 at the rear end of the horizontal wire gauge part 13 toward the top of the diagonally upwardly bent rear end 10b of the vertical metallic wire. A second connecting bar passed inside the folded end of the net 2 is locked to the rear end 10b to connect the banking reinforcing member 1 to the net 2. When the reinforcing members 1 and the nets 2 are buried in a number of layers in the banking with the inclined wire gauze parts 12 extending along the face of slope P, the banking is reinforced and prevented from collapsing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embankment reinforcing member capable of reinforcing an embankment to prevent collapse.

[0002]

2. Description of the Related Art Various types of embankment reinforcing members have been used in a laid ground or the like in order to prevent the embankment from collapsing. As an example, a slope member in which metal wires are welded in a grid and a horizontal buried member in which metal wires are welded in a grid form a slope reinforcement member, and the horizontal buried member is buried substantially horizontally in the embankment. In some cases, a slope member connected to the tip of the horizontal buried member is disposed along the slope to reinforce the embankment and prevent collapse.

[0003]

However, the above embankment reinforcing member needs to be assembled by connecting the slope member and the horizontal buried member at an acute angle in a substantially L-shape. There was no problem.

A civil engineering net made of synthetic resin fiber stranded wire is connected to the slope reinforcing material as an embankment reinforcing material. The structure for connecting the net made of this stranded wire is as follows. It was unsuitable for connecting a synthetic resin net in which tape-like warp yarns and weft yarns crossed each other and the intersections were fixed.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an embankment reinforcing member which has good workability without troublesome assembling work and can prevent collapse of the embankment.
It is an object of the present invention to provide a connection structure that can be easily connected to the embankment reinforcing member without detaching the synthetic resin net.

[0006]

In order to achieve the above object, an embankment reinforcing member according to a first aspect of the present invention comprises a welded metal mesh formed by welding a vertical metal wire and a horizontal metal wire in a grid pattern at an intermediate portion thereof. Bend to an acute angle, and integrally form the inclined wire mesh part and the horizontal wire mesh part that are inclined at an angle approximately equal to the slope angle of the embankment slope, and the rear end of the vertical metal wire of the horizontal wire mesh part is obliquely upward. It is characterized in that it is bent.

In this embankment reinforcing member, a high-strength welded wire mesh is bent at an intermediate portion at an acute angle, and an inclined wire mesh portion and a horizontal wire mesh portion inclined at an angle substantially equal to the inclination angle of the slope of the embankment are integrated. Since it is formed, the troublesome work of assembling the embankment reinforcing member by connecting both wire netting portions in a substantially L-shape and sharply as in the related art becomes unnecessary, and the workability is improved. In addition, since the rear ends of the vertical metal wires of the horizontal wire netting are bent obliquely upward, the synthetic resin nets can be easily connected by the connecting structure of claim 2 described later so as not to be detached. When the embankment reinforcing members are stacked in multiple stages so that the inclined wire mesh portion is along the slope of the embankment, and the horizontal wire mesh portion and the synthetic resin net are buried in the embankment, the embankment can be reinforced so as not to collapse.

[0008] Next, the connecting structure of the embankment reinforcing member and the synthetic resin net according to the second aspect of the present invention provides a welded metal mesh formed by welding a vertical metal wire and a horizontal metal wire in a lattice shape at an intermediate portion thereof at an acute angle. Bending, forming an inclined wire mesh part and a horizontal wire mesh part inclined at an angle approximately equal to the slope angle of the embankment slope, and bending the rear end of the vertical metal wire of the horizontal wire mesh part obliquely upward. A connection structure between the embankment reinforcing member according to claim 1 and a synthetic resin net having a square mesh in which tape-shaped warp yarns and weft yarns cross each other and each intersection is fixed, wherein the edge of the synthetic resin net is The first connecting rods are alternately inserted from above and below into a horizontal row of nets that are folded 180 degrees and vertically stacked, and the folded end of the synthetic resin net is placed below the metal wire next to the rear end of the horizontal wire netting, The rear end passes between the rear ends of the vertical metal wires bent obliquely upward. Drawer into upper, is characterized in that is engaged a second connecting rod which is inserted through the inside of the folded end of the synthetic resin net vertical rear end portion of the metal wire from the upper side.

In this connecting structure, the first connecting rods are alternately inserted from above and below into a single horizontal row of nets formed by folding the edge of the synthetic resin net by 180 degrees, and the vertical metal mesh of the horizontal metal mesh portion. The embankment can be easily reinforced by inserting a second connecting rod into the inside of the folded end of the synthetic resin net pulled out upward from between the rear ends bent obliquely upward of the wire and locking it to the rear end. The member and the synthetic resin net can be connected so as not to be separated. Therefore, if this connection structure is adopted, the time required for connection between the embankment reinforcing member and the synthetic resin net is greatly reduced, so that the workability is improved.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic sectional view of an embankment structure reinforced using an embankment reinforcing member according to an embodiment of the present invention, FIG. 2 is a front view of the embankment reinforcing member, and FIG. 3 is a side view of the embankment reinforcing member. FIGS. 4 (a) and 4 (b) are a front view and a right side view of a connecting metal wire used for the embankment reinforcing member.

As shown in FIG. 2 and FIG. 3, this embankment reinforcing member is formed by welding a vertical mesh wire 10 and a horizontal metal wire 11 in a grid shape at an intermediate portion thereof at a sharp angle to a welding wire mesh. An inclined wire mesh portion 12 and a horizontal wire mesh portion 13 that are inclined at an angle substantially equal to the inclination angle of the slope P of the embankment are integrally formed,
The upper end portion 10a of the vertical metal wire 10 of the inclined wire netting portion 12 is bent backward in a substantially V shape, and the rear end portion 10b of the vertical metal wire 10 of the horizontal wire mesh portion 13 is bent obliquely upward. Have been. A plurality of connecting metal wires 14 are stretched between the upper portion of the inclined wire mesh portion 12 and the rear portion of the horizontal wire mesh portion 13.

Although the size of the embankment reinforcing member 1 is not particularly limited, for example, the vertical size of the inclined wire mesh portion 12 is set to 50 to 80.
It is preferable that the horizontal dimension is set to about 100 cm to 300 cm, and the depth dimension of the horizontal wire netting 13 is set to about 30 cm to 60 cm. Further, the interval between the vertical metal wires 10 is 3 to 1
Preferably, it is set to about 0 cm, and if the interval is larger than 10 cm, the strength of the embankment reinforcing member 1 may be insufficient. If the interval is smaller than 3 cm, the weight increases, making it difficult to carry and increasing the material cost. The inconvenience of doing so occurs.

The connecting metal wire 14 is shown in FIG.
As shown in (b), the upper end was bent sideways into an inverted U-shape to form the upper end engaging portion 14a, and the lower end was bent sharply forward to form the lower end engaging portion 14b. As shown in FIGS. 2 and 3, the upper end engaging portion 14
a is engaged with the upper portion of the vertical metal wire 10 of the inclined wire mesh portion 12 (immediately above a portion orthogonal to the horizontal metal wire 11), and the lower end engaging portion 14 b is connected to the horizontal metal wire behind the horizontal wire mesh portion 13. Line 1
The upper portion of the inclined wire mesh portion 12 and the rear portion of the horizontal wire mesh portion 13 are connected to each other so that the inclined wire mesh portion 12 does not fall forward even if the inclined wire mesh portion 12 receives a large back pressure due to embankment.

As the vertical and horizontal metal wires 10 and 11 and the connecting metal wire 14, a normal iron wire having a diameter of about 5 to 10 mm and having been subjected to a hot-dip galvanized surface treatment is preferably used.

FIG. 5 is a partial perspective view showing a connection structure between the embankment reinforcing member having the above-described structure and a synthetic resin net.

The synthetic resin net 2 used in this connection structure
Is a net having a square mesh in which tape-like warp yarns 2a and weft yarns 2b cross each other, and each intersection is fixed by means of heat welding, high frequency welding, ultrasonic welding, or the like,
Preferably, a high-strength net using a polypropylene tape or an ultra-high-molecular-weight polyethylene tape as warp and weft, or extrusion-coated with a thermoplastic resin having good weldability around or around both upper and lower surfaces using these tapes as a core material. A high-strength net or the like using the laminated and integrated covering tape as warp and weft is used.

The synthetic resin net 2 is formed such that the connecting edge is turned 180 degrees, and the first connecting rods 41 are inserted alternately from above and below into a horizontally arranged mesh 2c. The folded end is fixed so that it does not open.
Then, the folded end of the synthetic resin net 2 is welded to the rear end of the vertical metal wire 10 of the horizontal wire mesh portion 13 by the horizontal metal wire 1 welded.
1 (11a), is drawn upward from the rear end portion 10b through a space between the rear end portions 10b bent obliquely upward of the vertical metal wire 10, and the folded end of the synthetic resin net 2 drawn upward is drawn. The second connecting rod 42 is inserted into the inside, and the connecting rod 42 is locked from the upper side to the rear end portion 10b, so that the rear end of the horizontal wire mesh portion 13 of the embankment reinforcing member 1 and the synthetic resin net 2 The folded ends are connected so as not to separate.

The ends of the connecting rods 41 and 42 are bent at a right angle so as not to fall out of the folded ends of the synthetic resin net 2 and the horizontal mesh 2c.

As shown in FIG. 1, the embankment reinforcing member 1 to which the synthetic resin net 2 is connected as shown in FIG.
Are stacked in multiple stages along the slope P of the embankment C, and the horizontal wire netting 13 and the synthetic resin net 2 are embedded in the embankment C. Then, as shown in FIG. 6, the upper end portion 10a of the vertical metal wire 10 of the lower embankment reinforcing member bent in a substantially V shape and the vertical metal wire 10 of the upper embankment reinforcing member are sharply bent. The upper and lower embankment reinforcing members 1 and 1 are connected by inserting the connecting rod 40 into a space formed by overlapping the intermediate bent portions 10e. Although not shown, it is desirable to attach a vegetation sheet or a vegetation net also serving as an earth retaining member to the back surface of the inclined wire netting portion 12 of the embankment reinforcing member 1 to green the slope P after construction. .

When the embankment C is reinforced by the slope reinforcing member 1 to which the synthetic resin net 2 is connected as described above, collapse of the embankment C and collapse of the slope P can be sufficiently prevented. Moreover, the slope reinforcing member 1 includes the inclined wire mesh portion 12 and the horizontal wire mesh portion 13.
Is formed integrally, so that there is no need for a troublesome work of assembling and assembling both wire netting portions in a substantially L-shape at the site as in the related art, and the connection of the synthetic resin net 2 is also required. Since the connection structure of the invention can be easily and reliably performed, the workability is improved.

[0022]

As is apparent from the above description, the embankment reinforcing member of the present invention does not require a troublesome work of connecting the inclined wire netting portion and the horizontal wire netting portion, and employs the embankment using the connecting structure of the present invention. The synthetic resin net can be securely connected to the rear end of the horizontal wire netting portion of the reinforcing member by a simple operation, and is buried in the embankment, so that the embankment can be sufficiently prevented from collapsing.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view of an embankment structure whose slope has been reinforced using a slope reinforcing member according to an embodiment of the present invention.

FIG. 2 is a front view of the embankment reinforcing member.

FIG. 3 is a side view of the embankment reinforcing member.

FIGS. 4 (a) and (b) are a front view and a right side view of a connecting metal wire used for the embankment reinforcing member.

FIG. 5 is an enlarged partial perspective view showing one embodiment of a connection structure between the embankment reinforcing member and the synthetic resin net of the present invention.

FIG. 6 is a partial view showing an upper and lower connecting structure of an embankment reinforcing member.

DESCRIPTION OF SYMBOLS 1 Embankment reinforcing member 10 Vertical metal wire 10b Rear end bent obliquely above vertical metal wire of horizontal wire mesh 11, 11a Horizontal metal wire 12 Inclined wire mesh 13 Horizontal wire mesh 14 Connection Metal wire 2 Synthetic resin net 2a Warp yarn 2b Weft yarn 2c Mesh 40 Connecting rod 41 First connecting rod 42 Second connecting rod C Filling P Slope

Claims (2)

[Claims] 1. An inclined wire mesh which is formed by welding a vertical metal wire and a horizontal metal wire in a grid shape to an acute angle at an intermediate portion thereof, and inclining at an angle substantially equal to the slope angle of the embankment slope. An embankment reinforcing member characterized in that a portion and a horizontal wire mesh portion are integrally formed, and a rear end portion of a vertical metal wire of the horizontal wire mesh portion is bent obliquely upward. 2. A sloping wire mesh which is formed by welding a vertical metal wire and a horizontal metal wire in a grid shape to an acute angle at an intermediate portion thereof and inclining at an angle substantially equal to the slope angle of the embankment slope. Part and the horizontal wire mesh part are formed integrally, the embankment reinforcing member in which the rear end of the vertical metal wire of the horizontal wire mesh part is bent obliquely upward, and the tape-like warp and weft cross each other to cross each intersection. A connecting structure with a synthetic resin net having a fixed rectangular mesh, wherein the first connecting rods are alternately inserted from above and below into a horizontal row of nets which are formed by folding the edge of the synthetic resin net by 180 degrees and stacking up and down. Draw out the folded end of the synthetic resin net from the lower side of the metal wire next to the rear end of the horizontal wire netting to the upper side of the rear end through the rear end bent obliquely upward of the vertical metal wire. Insert the second connecting rod inserted inside the folded end of the resin net into the vertical metal wire. A connection structure between the embankment reinforcing member and the synthetic resin net, wherein the structure is locked to the rear end from above.