JPH06146286A - Steep slope banking structure constructed by using net member - Google Patents

Abstract

PURPOSE:To build a steep slope banking structure regardless of the size of construction of a steep slope banking structure sheduled to be built, reduce the number of using members, facilitate the manufacture, decrease the cost, firmly build the structure, and shorten the construction period. CONSTITUTION:A net-like member 4 having a slope part 12 bent at a prescribed angle so as to be a steep slope and a bottom face part 14 is provided, a hook part 16 is bently formed on the end part of the bottom face part of the member 4, and a belt member 6 secured in the nearly horizontal direction is provided on the slope part of the member 4. A brace member 8 connecting together the belt member and the bottom face part of the member 4 and having a slope adjusting part on the way is provided, and a tension member 10 of which one end is engaged with the hook part on the bottom face part of the member 4 is provided. After engaging the hook part with one end part position of the tension member, soil is rollingly pressed on the upper part of the bottom face part of the member 4, the brace member is buried in the soil so as to form a first soil layer, soil layers from the second layer are formed on the upper part of the first soil layer, and hence the steep slope banking structure is built.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steep slope embankment structure constructed by using a mesh member, and in particular, a steep slope embankment structure is constructed by sequentially forming a plurality of soil layers using the mesh member. The present invention relates to a steep slope embankment structure constructed using a mesh member.

[0002]

Embankment structures are reinforced (stable, stable, non-sticky soils, composed of waste.
Geologic structure (including reinforcement). The soil is, for example, soil,
Consists of various substances such as sand, viscosity, gravel, white slag, ore, powdered fuel ash, slag, etc. It is especially applicable to excavation, construction of side parts of embankments, and repair in earthworks.

Also, for example, a sea wall such as a wharf, a dam,
Applies to storage, unstable slopes in mountainous areas, walls to prevent explosions, etc.

Further, the present invention is particularly applicable to constructing a vertical retaining wall or a holding portion of a bridge, constructing a dike of weak soil, constructing a steep dike, or a combination of these constructions.

As a technique for supporting a vertical retaining wall or a steep embankment structure, a stabilizing tensile member or an anchor is embedded in the soil in order to provide stability to the soil. The type of stabilizing tensile members and anchors used and the placement of the members for a particular geological structure are set by the size of the structure and the nature of the soil.

[0006]

By the way, in the conventional steep slope embankment structure, when constructing the steep slope embankment structure, a method of stacking blocks formed in a predetermined shape or standing with a slight allowance. A method of arranging a mesh member between a plurality of columns provided may be considered.

However, if the steep slope embankment structure is constructed by the block, which is the former measure, it is possible to construct a solid steep slope embankment structure, but the cost of the block itself and the support member for supporting the block. There is an inconvenience that the cost becomes large and it is economically disadvantageous.

In the latter method, if a steep slope embankment structure is constructed by arranging a mesh member between a plurality of columns that are erected with a slight inclination, the construction is easy, and the manufacturing period and workability are good. Although it is possible to reduce the manufacturing cost, it is necessary to connect pillars and mesh members, especially when constructing a steep slope embankment structure with a large height, and a solid steep slope embankment is required. There is an inconvenience that the structure cannot be constructed.

As a result, as described above, the construction method has to be changed according to the size of the steep slope embankment structure to be constructed. In addition, it is earnestly desired to realize a steep embankment structure which can be constructed at a low cost and can be firmly constructed.

[0010]

Therefore, in order to eliminate the above-mentioned inconvenience, the present invention provides a steep slope embankment structure constructed by embankment composed of a plurality of soil layers at a predetermined angle so as to be in a steep slope state. A net-like member having a bent slope portion and a bottom surface portion is provided, and a hook portion is bent and formed at an end portion of the bottom surface portion of the net-like member, and a band-like member fixed to the slope portion of the mesh member in a substantially horizontal direction is provided. A tensile member in which one end is engaged with a hook portion formed on the bottom surface of the net-like member by providing a brace member that connects the belt-like member and the bottom surface of the net-like member and has a slope adjusting part in the middle A member is provided, the hook portion is engaged with one end portion of the tensile member, and then the soil is compacted on the bottom surface of the mesh member, and the breath member is embedded in the soil.
The soil layer is formed, and the second and subsequent soil layers are formed on the upper part of the first soil layer to construct a steep slope embankment structure.

[0011]

According to the invention as described above, when constructing a steep slope embankment structure, the hook portion is engaged with one end portion of the tensile member, and after the engagement, the soil is transferred to the upper portion of the bottom surface portion of the mesh member. While pressing, the breathing member is embedded in the soil to form the first soil layer, and the second and subsequent soil layers are sequentially formed on the upper portion of the first soil layer to construct a steep embankment structure. .

[0012]

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

1 to 8 show an embodiment of the present invention. In FIG. 1 and FIG. 2, 2 is a steep slope embankment structure.

This steep slope embankment structure 2 comprises a mesh member 4
A strip-shaped member 6, a brace member 8 and a tensile member 10.

As shown in FIGS. 1 and 2, the mesh member 4 is bent into a substantially L shape at a predetermined angle, for example, 73.3 degrees so as to have a steep slope, and is exposed by the bending. The hook portion 16 having the inclined surface portion 12 and the bottom surface portion 14 and the bottom surface portion 14 of the mesh member 4 having a predetermined angle θ is formed by bending.

Further, as shown in FIGS. 1 to 3 and 5, the belt-shaped member 6 is fixed to the surface portion of the slanted surface portion 12 of the net-shaped member 4 in a substantially horizontal direction.
As shown in FIGS. 6 and 7, the end portion of is connected to and fixed by the joint plate 18 located on the rear surface of the slanted portion 12 of the mesh member 4 and the fixing metal fitting 20 made of bolts and nuts.

The brace member 8 connects the belt-shaped member 6 and the bottom surface portion 14 of the mesh member 4 at predetermined intervals, and has a gradient adjusting portion 22 in the middle thereof. That is, as shown in FIG. 4, the strip-shaped member 6 is provided at one end of the breath member 8.
And a second engaging portion 8a which engages with the bottom surface portion 14 of the mesh member 4 at the other end.
b, the gradient adjusting unit 22 is formed of, for example, a turnbuckle.

Further, as shown in FIG. 8, the tensile member 10 has a structure in which a plurality of elongated holes 26 are formed in a plate member 24 made of, for example, high density polyethylene, and the bottom surface portion of the mesh member 4 is formed. The hook 16 formed by bending 14 is engaged with the elongated hole 26.

Then, after engaging the hook portion 16 with the elongated hole 26 which is one end portion of the tensile member 10, the soil is compacted onto the bottom surface 14 of the mesh member 4 and the breath member 8 is embedded in the soil. To form a first soil layer 28-1, and the second and subsequent soil layers 28-2 are formed on top of the first soil layer 28-1.
Are sequentially formed to construct the steep slope embankment structure 2.

Reference numeral 30 is a spring washer used when connecting and fixing with the fixing metal fitting 20.

Next, the operation will be described.

When the steep slope embankment structure 2 is constructed, for example, 73.
The net-like member 4 bent three times is positioned, and the hook portion 16 formed by bending the bottom surface 14 of the net-like member 4 is engaged with the elongated hole 26 of the tensile member 10. At this time, the slope 12
The front surface is the front portion of the steep slope embankment structure 2.

Then, as shown in FIGS. 6 and 7, the end portion of the mesh member 4 is connected by the joint plate 18 located on the rear surface of the inclined portion 12 of the mesh member 4 and the fixing fitting 20 composed of bolts and nuts. The mesh member 4 is fixed, and the mesh member 4 is fixed to the surface portion of the slope portion 12 of the mesh member 4 in a substantially horizontal direction.

Next, the first engaging portion 8a at one end of the breath member 8 is engaged with the belt-shaped member 8 and the second engaging member 8a at the other end is formed.
Engage the engaging portion 6b with the bottom surface portion 14 of the mesh member 4,
The gradient adjusting unit 22 adjusts to a predetermined gradient state.

After the adjustment of the gradient state, the breath member 8 is embedded in the soil while rolling the soil or the sandbag on the bottom surface portion 14 of the mesh member 4 and the upper portion of the tensile member 10, and the first soil layer 28- 1 is formed.

Then, a second and subsequent soil layers 28-2, ... Are formed on the first soil layer 28-1 in the order of the construction of the first soil layer 28-1 described above, and the aforesaid rapid soil layer 28-2 is formed. The gradient embankment structure 2 is constructed.

At this time, when the upper soil layer is formed on the lower soil layer, the net member 4 forming the upper soil layer is formed on the upper end of the slope 12 of the net member 4 forming the lower soil layer. As shown in FIG. 3, when the lower soil layer is the first soil layer 28-1, the upper soil layer is the second soil layer 28-2 and the lower soil layer is the second soil layer 28-2. If the second soil layer 28-2 is set, the upper soil layer becomes the third soil layer 28-3.

As a result, regardless of the size of the steep slope embankment structure 2 to be constructed, the steep slope embankment structure 2
The construction work can be done, and there is no need to change the construction method as in the past, it can be done with only one construction method, the number of various members used is reduced, the manufacturing is easy and the cost is low. Therefore, it is economically advantageous.

When constructing the steep slope embankment structure 2, the first, second, ... Soil layers 28-1, 28-2 ,.
Since it can be sequentially formed from below, the steep slope embankment structure 2 can be firmly constructed, which is practically advantageous.

Further, since the construction work of the steep slope embankment structure 2 is easy, the construction period can be shortened as compared with the conventional one, and various expenses such as personnel expenses and borrowing expenses of various equipments can be achieved. Can be reduced.

Furthermore, by providing the slope adjusting section 22 in the middle of the breath member 8, the slope angle of the slope portion 12 of the mesh member 4 is taken into account at the construction site in consideration of factors such as the condition of the construction site and the soil condition. It is possible to change the slope angle of the entire steep slope embankment structure 2 or the slope angle of only the desired soil layer, which increases versatility and improves usability. .

When forming the upper soil layer on the upper part of the lower soil layer, the mesh member 4 forming the upper soil layer is slightly overrun at the upper end of the slope 12 of the net member 4 forming the lower soil layer. By wrapping, it is possible to cope with the sliding movement of the mesh member 4 when the soil layer after construction is compressed, and it is possible to reliably prevent deformation, damage, or collapse of the steep slope embankment structure.

[0033]

As described above in detail, according to the present invention, a net-like member having a sloped portion and a bottom surface portion is provided which is bent at a predetermined angle so as to be in a steep slope state, and the bottom end portion of the net-like member is provided. A hook-shaped bent portion is provided, and a belt-shaped member that is fixed in a substantially horizontal direction is provided on the inclined surface of the net-like member, and a breathing member that connects the belt-like member and the bottom surface of the net-like member and that has a gradient adjusting portion is provided midway. , Providing a tensile member whose one end is engaged with a hook portion formed by bending on the bottom surface portion of the mesh member, and engaging the hook portion with one end portion of the tensile member, and then soil on the upper portion of the bottom surface portion of the mesh member. First, the breathing member is buried in the soil while rolling
The structure of the steep slope embankment structure is planned to be constructed because the soil layer is formed, and the second and subsequent soil layers are formed on the first soil layer to construct the steep slope embankment structure. The construction work of a steep slope embankment structure can be performed regardless of the above, there is no need to change the construction method as in the past, and it can be performed by the only construction method, and the number of various members to be used can be reduced. It can be manufactured easily, can be manufactured at low cost, and is economically advantageous. Further, when constructing the steep slope embankment structure, the steep slope embankment structure can be firmly constructed by sequentially forming the first, second, ... Soil layers from below, which is practically advantageous. is there. Further, since the construction work of the steep slope embankment structure is easy, the construction period can be shortened as compared with the conventional construction, and various expenses such as personnel expenses and borrowing expenses for various equipment can be reduced. . Furthermore,
By having a gradient adjusting part in the middle of the breath member,
It becomes possible to change the slope angle of the slope of the net member at the construction site in consideration of factors such as the condition of the construction site and the soil condition, which increases versatility and improves usability. Further, when forming the upper soil layer on the upper part of the lower soil layer, if the mesh member forming the upper soil layer is slightly overlapped on the upper end of the slope of the net member forming the lower soil layer, It is possible to deal with the sliding movement of the mesh member when the soil layer after construction is compressed, and it is possible to reliably prevent the deformation, damage, or collapse of the steep slope embankment structure.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view of a main part taken along line 〓-〓 of FIG. 2 showing an embodiment of the present invention.

FIG. 2 is a schematic front view of only the first soil layer of a steep slope embankment structure.

FIG. 3 is a schematic front view of a steep slope embankment structure.

FIG. 4 is a schematic view of a breath member.

FIG. 5 is a schematic view of a belt-shaped member.

FIG. 6 is a schematic enlarged view of a portion of FIG.

FIG. 7 is an enlarged cross-sectional view of the main part taken along the line 〓-〓 of FIG.

FIG. 8 is a schematic perspective view of a tensile member.

[Explanation of symbols]

 2 steep slope embankment structure 4 mesh member 6 strip member 8 brace member 8a first engaging portion 8b second engaging portion 10 tensile member 12 slope portion 14 bottom portion 16 hook portion 18 joint plate 20 fixing bracket 22 gradient adjusting portion 24 plate-like member 26 long hole 28-1 first soil layer 28-2 second soil layer 30 spring washer

Claims (1)

[Claims] 1. A steep slope embankment structure constructed by an embankment consisting of a plurality of soil layers, provided with a net-like member that is bent at a predetermined angle to have a steep slope and has a slope and a bottom surface. A hook is bent at the end of the bottom surface of the member, and a belt-like member fixed in a substantially horizontal direction is provided on the slope of the net-like member. The belt-like member and the bottom surface of the net-like member are connected to each other and a gradient is formed in the middle. A breathing member having an adjusting portion is provided, and a tensile member whose one end is engaged with a hook portion bently formed on the bottom surface portion of the mesh member is provided, and the hook portion is engaged with one end portion of the tensile member. After that, the soil is compacted on the bottom surface of the mesh member and the breath member is embedded in the soil to form the first soil layer, and the second and subsequent soil layers are sequentially formed on the upper portion of the first soil layer to form the soil layer. A mesh member characterized by having a structure for constructing a gradient embankment structure A steep embankment structure constructed using.