JPH07292642A - Suspension protective weir - Google Patents

Abstract

PURPOSE:To facilitate the construction, removal and maintenance management of a suspension protective weir as well as protection performance such as debris flow, driftwood, avalanche, etc., and reliability and to promote durability and landscape. CONSTITUTION:In a swamp section (a) such as a mountain stream, etc., in danger of having debris flow, driftwood, avalanche, etc., main ropes 3 are constructed between upper parts of both foundations 1 constructed on both sides of the swamp section, a plurality of hanging vertical steel materials 5 are suspended on the main ropes leaving spaces between ritht and left of them in perallel near to the swamp section, at the same time, a plurality of horizontal ropes 7 are constructed between sides of both foundations leaving spaces between up and down of them in parallel, and the hanging vertical steel materials are fixed respectively to the horizontal ropes and are elastically supported. Two main ropes leave spaces between front and rear of them and are constructed in parallel, the hanging vertical steel materials are formed in hanging vertical steel frames 5 and 6 connecting two front and rear hanging vertical steel materials 5 with a plurality of tie steel materials, the hanging vertical steel frames are suspended to two front and rear main ropes leaving spaces between right and left of them near to the swamp section in parallel, and a wire net is stretched over the whole hanging vertical steel material group or hanging vertical steel frame group of the hanging vertical steel materials or hanging vertical steel frames. In addition, at least the main ropes, horizontal ropes or wire net are galvernized, and every member 41 is coated with resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is suitable as a protective work for sand control and / or snow protection against debris flow, driftwood, avalanche, etc. due to heavy rain, earthquakes, natural fall, etc. It concerns suspension type protective weirs.

[0002]

2. Description of the Related Art Conventionally, when there is a risk of debris flow, driftwood, avalanche, etc. due to heavy rain, earthquake, or natural fall, etc. in a mountain stream, etc. Build a multi-tiered structure with a downstream interval, or embed multiple concrete foundations in a sewage area at left and right intervals, build steel columns on each concrete foundation, and make multiple steel columns on this steel column group. By constructing a grid-type sabo fence in which horizontal beams are fixed at intervals above and below, these protective works reduce the kinetic energy of debris flow, driftwood, etc. to reduce the outflow area, downstream roads, private houses, various types of It is installed as a safety facility to prevent the destruction and damage of structures.

[0003]

In the conventional protection work for debris flow, driftwood, etc., the overflow-type weir has a protective function such as a decrease in the protective function due to the overflow when the amount of water becomes large. In addition to its limitations, there are issues such as the need to install multiple stages and the facility becoming large-scale.

Further, in the lattice type sabo fence, debris flow or driftwood directly collides with the steel lattice fence and is apt to be locally damaged due to a strong impact, and it takes a lot of trouble and trouble to repair or reconstruct it. Therefore, there is a problem in terms of workability and economic efficiency, such as the construction being prolonged.

The present invention was developed in order to address the above-mentioned problems, and the object of the present invention is to suspend the main ropes and lateral rope groups stretched between the foundations on both sides of the swamp. A group of vertical steel members or a group of suspended vertical steel frames is suspended to form a lattice-like protective weir, and
By suspending wire mesh or applying zinc coating or painting, it is a suspension type protection that makes it easy to construct, remove and maintain, and enhances the durability and landscape as well as the protection performance and reliability of debris flow, driftwood, avalanche, etc. Located in providing a weir.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a main rope is erected between upper parts of a foundation constructed on both sides of a swamp where there is a risk of debris flow, driftwood, avalanche, etc. Are hung in parallel with each other to the vicinity of the swamp surface to form a suspension vertical steel group, and the suspension vertical steel group is fixed to the horizontal rope group stretched in parallel with a vertical interval between the sides of both foundations. By supporting it, it becomes a lattice-like protective weir suspended by the main rope and the horizontal rope group to enhance the protection performance and reliability of debris flow, driftwood, avalanche, etc., and to facilitate its construction, removal, and maintenance management. There is.

In addition, the number and intervals of suspended vertical steel members and horizontal ropes can be adjusted in response to debris flow, driftwood, avalanche, etc., or suspended vertical steel frame groups can be hung on a pair of front and rear main ropes, or wire mesh can be used. It is stretched to increase versatility and also enhances protection performance and reliability.

Further, at least the above-mentioned main ropes and cross ropes or wire mesh are plated with zinc for rust prevention, or each member is coated and resin-coated to color the rust prevention and enhance the durability and the scenery. There is.

[0009]

[Operation] A main rope is erected between the upper parts of the foundation constructed on both sides of the swamp, and a plurality of hanging vertical steel members are hung parallel to the swamp surface in parallel with a left-right interval to form a hanging vertical steel group. , Lattice-shaped protection suspended by the main rope and the horizontal rope group by fixing and suspending the suspended vertical steel material group to the horizontal rope group that is stretched in parallel with the vertical intervals between the sides of both foundations. Constructed as a weir, this lattice-shaped protective weir is suspended and elastically supported by a group of main ropes and lateral ropes that have appropriate elasticity and are directly received by debris flows, driftwoods, avalanches, etc. to exert their kinetic energy. It has an excellent protection function to reduce the damage, and has little weir damage and durability.

Further, the number and interval of the suspended vertical steel members and the horizontal ropes can be adjusted according to the debris flow and driftwood, and the suspended vertical steel frame group can be hung on the pair of front and rear main ropes or the wire mesh can be stretched. By doing so, the protection performance is diversified and versatility is enhanced, and the reliability of the protection function is further enhanced.

Further, at least the above-mentioned main ropes and cross ropes or wire mesh are plated with zinc to prevent rust, or each member is coated and resin-coated to color with rust prevention,
It has improved durability and scenery. In addition, the construction and removal can be easily performed at any time in a short period of time, and the damage and the maintenance thereof can be easily performed at any time.

[0012]

1 and 2 show a first embodiment of the present invention, and FIG. 3 shows a second embodiment in which a wire net is stretched. In the figure, a is a swamp part such as a debris flow, driftwood, or avalanche where there is a risk of avalanche, 1 is a foundation constructed on both sides of the swamp part (for example, reinforced concrete), 2 is a tower on the foundation 1, 3 is both ends Anchor 4a on foundation 1
The main ropes 5 erected between the two tower columns 2 are hung vertical steel materials or a group of vertical hung steel materials that are hung from the main ropes 3 at right and left intervals and are hung in parallel by the metal fittings 5a, b, c to near the sloping surface. Reference numerals 5 and 6 are suspension vertical steel frames or a suspension vertical steel frame group in which a pair of front and rear suspension vertical steel materials 5 are connected and connected by steel materials 6, and 7 are anchors 8a on the side surfaces of both foundations 1 and are stretched in parallel at vertical intervals. A horizontal rope or a horizontal rope group, 9 is a wire mesh (see FIG. 2) stretched on the front surface of the hanging vertical steel material group 5 or the hanging vertical steel frame groups 5 and 6, and the illustrated embodiment is a debris flow, driftwood, avalanche, etc. In a swamp a such as a mountain stream, a main rope 3 is erected between the upper parts of both foundations 1 constructed on both sides of the swamp a, and a plurality of suspended vertical steel members 5 are arranged in parallel on the main rope 3 at left and right intervals. In addition to hanging up to near the swamp surface, a plurality of horizontal ropes 7 are stretched in parallel between the side portions of both foundations 1 at vertical intervals, and each hanging vertical steel member 5 is attached to each horizontal rope 7.
It is a suspension type protection weir that is fixed and elastically supported.

Further, in the above-mentioned suspension type protection weir, the main ropes 3 are laid in parallel in a front-rear pair with a front-rear interval, and each suspension vertical steel member 5 is formed in a front-rear pair and connected by a plurality of connecting steel members 6. The vertical steel frames 5 and 6 are provided.
It is a suspension-type protective weir, which is characterized in that 6 is hung in parallel to each other with a space left and right, and close to the swamp.

Further, in each of the above suspension-type protective dams, a group of suspended vertical steel members 5 composed of suspended vertical steel members 5 or suspended vertical steel frames 5, 6 are provided.
It is a suspension type protective weir characterized in that a wire net 9 is stretched over the entire surface of the hanging vertical steel material groups 5 and 6.

Further, in each of the above-mentioned suspension type protection weirs, at least the main rope 3 and the horizontal ropes 7 or also the wire nets 9 are zinc-plated, which is a suspension type protection weir.

Further, in each of the above suspension type protection dams, the main rope 3 and the horizontal rope 7, or the wire net 9 and the hanging vertical steel material 5 or the hanging vertical steel frames 5 and 6 are coated and resin-coated. It is a suspension type protection weir.

More specifically, as shown in FIG.
Is a mountainous area such as a mountain stream where there is a risk of debris flow, driftwood, avalanche, etc.
If reinforced concrete is constructed on both sides of the above and overflow overflow dams are constructed as shown in FIG. 1, it is possible to use the foundations on both sides. The main rope 3 has tower columns 2 (or a pedestal or the like) arranged on both sides of the foundation 1 as needed, and both ends thereof are anchored 4a by appropriate anchor fittings provided on the foundation 1 and both tower columns. Properly fixed on 2.
It is fixed / guided by the guide means 4b and arranged at an appropriate height, and it is installed between both tower columns 2 by applying an appropriate tension as shown in the figure, and the expected size and flow velocity of debris flow, driftwood, avalanche, etc. Corresponding to the above, one main rope 3 is erected, or two main ropes 3 are erected in parallel in a front-rear pair with a proper front-rear interval as shown in the figure. Various wire ropes or cables are applied to the main rope 3.

Further, the suspended vertical steel material 5 has its upper end portion tilted with the appropriate connecting fittings 5a, 5b, 5c (for example, a sandwiching plate 5a with a pair of elongated holes 5b and a plurality of bolts and nuts 5c). Vertically fixed to each other (Fig. 2A,
(See B), and hang it up close to the swamp surface and hang it in parallel with the main rope 3 at an appropriate left-right spacing (see FIG. 1A), and in response to expected debris flow, driftwood, avalanche, etc. By appropriately setting the number of 5 and the left-right spacing, a vertical suspension steel member group 5 suspended from one main rope 3 can be configured, or a suspension vertical steel member in which a pair of front and rear suspension vertical steel members 5 are connected by a steel member 6 is connected. The steel frames 5 and 6 are formed into a group of suspended vertical steel frames 5 and 6 in which the suspended vertical steel members 5 before and after the suspended vertical steel frames 5 and 6 are suspended on the pair of main ropes 3 in the front-rear direction. As the hanging vertical steel material 5 and the connecting steel material 6, an H-shaped steel material, a channel steel material or the like as shown in the drawing is applied.

The both ends of the horizontal rope 7 are anchored to the side portions of the two foundations 1 by suitable anchor metal fittings 8a by applying a predetermined tension, and are stretched in parallel at appropriate vertical intervals as shown in the drawing. In the case of the hanging vertical steel material group 5, it is arranged on the front side or the rear side thereof, and in the case of the hanging vertical steel frame groups 5 and 6, it is arranged on the front side or the rear side thereof. The hanging vertical steel materials 5 or the hanging vertical steel frame groups 5 and 6 are fixed to each other by appropriate connecting metal fittings 8b (for example, U bolts, nuts, etc.), and the horizontal rope group 7 is used to suspend the hanging vertical steel material groups 5 or the hanging vertical steel frame groups. 5 and 6 are elastically supported with moderate tension. In addition, the number of horizontal ropes 7 and the vertical interval are set appropriately to correspond to the expected debris flow, driftwood, avalanche, etc.
It is configured as a lattice-like protective weir suspended by the hanging vertical steel material group 5 or the hanging vertical steel frame groups 5, 6 and the horizontal rope group 7. Various wire ropes or cables are applied to the cross rope 7.

Further, as shown in FIG. 3, the wire net 9 is provided with appropriate connecting metal fittings (for example, U bolts, nuts, etc.) over the entire front surface (upstream side) of the hanging vertical steel material group 5 or the hanging vertical steel frame groups 5 and 6. )
The appropriate mesh is applied in correspondence with the expected debris flow, driftwood, avalanche, etc., and the elasticity of the wire net 9 further enhances the protection function of the debris flow, driftwood, avalanche, etc.

In the above-mentioned suspension type protection weir, at least the main ropes 3 and the horizontal ropes 7 or also the wire nets 9 are plated with zinc or molten zinc, and if necessary, the hanging vertical steel material 5 and the hanging vertical steel frame 5, 6. Each metal fitting is also plated with molten zinc to prevent rust. Furthermore, each of the above-mentioned members is coated and coated with polyethylene or nylon to prevent rust and to be colored, so that the appearance is matched to the environment.

In the illustrated suspension type protection weir, the foundation 1 is constructed on both sides of the swamp a as described above, and the main rope 3 is provided between the upper portions of both foundations 1.
A plurality of hanging vertical steel members 5 are hung on the main ropes 3 in parallel with each other at intervals of right and left to the main ropes 3, and both foundations 1
A plurality of horizontal ropes 7 are vertically stretched in parallel with each other between the side portions, and each hanging vertical steel material 5 is fixed and elastically supported on each horizontal rope 7, respectively. The hanging vertical steel material group 5 is constructed as a lattice-like protective weir together with the horizontal rope group 7, and the lattice-like protective weir has a proper elasticity and a strong main rope 3 and horizontal rope group 7.
Suspended on the swamp part a by and is elastically supported by debris flow and driftwood,
It directly receives avalanches and buffers the kinetic energy of the avalanches to effectively reduce them, providing an excellent protection function.
Has relatively little damage and durability.

In addition, according to the expected size and flow velocity of debris flow, driftwood, avalanche, etc., the number of vertical suspension steel members 5 or vertical suspension steel frames 5, 6 and horizontal ropes 7, and the like are adjusted to form a grid pattern. It has versatility and can further enhance protection performance and reliability, such as the ability to diversify the protection function by adjusting the grid size of the protection weir.

Further, as described above, at least the main ropes 3, the transverse ropes 7 and / or the wire nets 9 are fixed with zinc, and if necessary, other members are also fixed with molten zinc to prevent rust, or each member is also treated. It is painted and coated with resin to prevent rust and to be colored to match the environment, effectively enhancing the scenery as well as durability.

Also, scaffolding, like a conventional grid-type sabo fence,
It is not necessary to bury the foundation in the bad ground a, and the suspension type weir shown in the figure is constructed by suspending it at any time regardless of the season and easily and in a relatively short period of time. In addition, it can be easily removed, and its repair and management can be easily performed at any time. It has excellent workability and maintainability.

[0026]

The present invention is constructed as described above, and a main rope is erected between the foundations on both sides of the swamp, and a plurality of hanging vertical steel members are placed on the main rope in parallel with each other up to near the swamp surface. Suspend a suspended vertical steel group, and secure the suspended vertical steel group to a horizontal rope group stretched in parallel with vertical intervals between the sides of both foundations to facilitate a suspended grid-like protective weir. This grid-shaped protective weir is suspended and elastically supported on the swamp part a by the main rope 3 and the horizontal rope group 7 that have appropriate elasticity and are strong, and can support the kinetic energy of debris flow, driftwood, avalanche, etc. Effectively reduced, its protective performance is significantly improved.

In addition, the number and spacing of the suspended vertical steel members (or suspended vertical steel frames) and horizontal ropes can be adjusted according to the debris flow, driftwood, avalanche, etc., or the suspended vertical steel frame group can be suspended on a pair of front and rear main ropes. The protection performance is diversified by installing or installing a wire mesh, and the protection performance and reliability are further enhanced along with versatility, and at least the main rope, the horizontal rope, or the wire mesh is protected by zinc. It rusts, or paints each member and coats it with resin to prevent rust, color it and match it to the environment, effectively enhancing the scenery as well as durability.

Further, regardless of the season or the like, it is possible to construct it by suspending it at any time and easily in a relatively short period of time, and similarly, it can be removed at any time and easily, and this repair and management should be performed easily. It has excellent workability and maintainability.

[Brief description of drawings]

FIG. 1 is a front mechanism view (A) and a plan view (B) showing a first embodiment of the present invention.

FIG. 2 is a partially enlarged side view (A) of the suspended vertical steel frame and an enlarged front view (B) of the upper portion of the suspended vertical steel material.

FIG. 3 is a front mechanical view of the entire surface side (upstream side) showing a second embodiment of the present invention.

[Explanation of symbols]

 a Sawabe 1 Foundation 3 Main rope 5 Suspended vertical steel (suspended vertical steel group) 6 Connecting steel 5,6 Suspended vertical steel frame (suspended vertical steel frame group) 7 Horizontal rope (horizontal rope group) 9 Wire mesh

Claims (5)

[Claims] 1. A main rope is erected between the upper parts of both foundations constructed on both sides of the swamp in a swamp where there is a risk of debris flow, driftwood, avalanche, etc., and a plurality of suspended vertical steel members are attached to the main rope. In addition to suspending in parallel with each other up to the swamp surface with a space between left and right, a plurality of horizontal ropes are stretched in parallel between the side parts of both foundations with a vertical gap and each hanging vertical steel material is fixed to each horizontal rope. Suspension-type protective weir characterized by being elastically supported. 2. The suspension type protective dam according to claim 1,
The above-mentioned main ropes are laid in parallel with a front-rear spacing at anteroposterior intervals, and each suspension vertical steel member is made into a front-rear pair to form a suspension vertical steel frame that is connected with multiple connecting steel materials. A suspension-type protective weir, characterized in that the frames are hung parallel to each other with a space left and right and close to the swamp. 3. The suspension type protective dam according to claim 1 or 2, wherein a wire mesh is provided on the entire surface of the group of hanging vertical steel members made of the hanging vertical steel members or the group of hanging vertical steel frames made of the hanging vertical steel frames. A suspension type weir characterized by being stretched. 4. The suspension type protective weir according to claim 1, claim 2 or claim 3, wherein at least the main ropes and the horizontal ropes or the wire nets are zinc-plated. 5. The suspension type protective weir according to claim 1, claim 2, claim 3 or claim 4, wherein the main rope and cross rope, or wire mesh and hanging vertical steel material or hanging vertical steel frame are coated. A suspension type weir characterized by being coated with resin.