JP2006207205A - Slope frame and construction method for protecting slope using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slope frame which has excellent workability, which can minimize deformation against a load imposed on a frame body without increasing its own weight because of the truss structure of the frame body, which prevents the frame body from breaking or being bent because of the selfweight of stone finishing, vegetation or the like, which is lightweight and provides excellent stability to the slope, which is subject to corrosion by secular changes and becomes compost for potential vegetation and plant seeds introduced into the frame body, which can perform greening of the whole slope and make the landscape neat, and which is excellent in environmental protection properties. <P>SOLUTION: The slope frame 1 has a main material 2 and two slanting materials 4, 6, and is provided with the frame body 8 formed in a triangle shape. The main material 2 is arranged nearly orthogonally to the gradient direction of the slope 100, and the slanting materials 4, 6 formed by timber or bamboo materials intersect the main material 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a frame that stabilizes slopes and the like (hereinafter simply referred to as slopes) formed with the construction of mountain slopes, dikes, roads, and the like, and a slope protection method using the same.

Conventionally, vegetation has been carried out in order to prevent and stabilize collapse of slopes, slopes, etc. formed with the construction of mountain slopes, dikes and roads. In particular, for a slope that is insufficient only by vegetation, a slope protection method using a structure such as a mortar spraying method, a concrete spraying method, or a frame method is frequently used. As the frame, many have been used in which concrete is placed on the site along the slope, or concrete blocks are arranged.
However, the concrete frame has an unnatural scenery that is not suitable for the surrounding natural environment. Moreover, there was a problem that construction was large and lacked in workability. Also, as the years pass, the inside and outside of the frame body is vegetated and greened, but the frame itself is made of concrete, so it has a problem that it remains on the slope as a foreign material and lacks environmental conservation.
Therefore, in recent years, a construction using wood such as thinned wood has been developed as a framework with easy construction, low construction costs, and a good landscape after construction.
As a conventional technique, (Patent Document 1) states that a plurality of frames are formed in a lattice shape or an oblique lattice shape by connecting end portions of rod-shaped frame materials for a frame using a frame connector having a connection piece. A “framework method for forming a body” is disclosed.
In (Patent Document 2), “a method of using thinning material that forms a rhomboid frame by overlapping and connecting fitting grooves of a plurality of thinning materials in which fitting grooves having a U-shaped cross section are formed. "Revetment method" is disclosed.
(Patent Document 3) states that “a through-hole is formed in the center of wood such as thinned wood, a frame material is formed by inserting a wire or the like into the through-hole, and an end of the wire or the like. A streak-like or lattice-like leg frame in which a fastener is disposed and a plurality of leg frame members are connected via the fastener is disclosed.
JP 2000-11166 A JP 2002-61150 A JP 2002-371562 A

However, the above conventional techniques have the following problems.
(1) The technologies disclosed in (Patent Document 1) to (Patent Document 3) use wood such as thinned wood, and form a frame in which the frame is formed in a square shape such as a lattice shape or a diagonal lattice shape. Therefore, even if the length of one side of the frame is determined, the shape of the quadrilateral of the frame is not determined, so that the frame is easily deformed, and there is a problem of lack of workability when assembling the method frame.
(2) The above technique requires the use of legal frame connectors and fasteners, or the formation of fitting grooves and through holes in the thinned wood, and the transparency for connecting the legal frame connectors to the thinned wood. There was a problem that the work man-hour for forming a through hole for inserting a hole, a fitting groove, a wire or the like was required and the workability was lacking.
(3) Since wood such as thinned wood that has been cut short to a certain length is connected using a legal frame connector or fastener, the bending resistance that wood originally has cannot be fully utilized. , Due to the load acting on the frame, it is easily deformed or broken, lacks mechanical strength, and cuts the wood to a certain length. And had the problem of lacking resource saving.

The present invention solves the above-mentioned conventional problems, is excellent in workability, and because the frame body has a truss structure, the deformation can be reduced with respect to the load acting on the frame body without increasing its own weight, It is lightweight and has excellent slope stability without breaking or bending the frame due to its own weight such as stone or vegetation, and it becomes a fertilizer for potential vegetation and plant seeds introduced into the frame due to aging. Furthermore, the object is to provide a legal framework that can greenen the entire slope and arrange the landscape and is excellent in environmental conservation.
In addition, the present invention is excellent in workability, and can be installed with a simple work without special work such as placing concrete, so a method with excellent workability can be realized by workers other than skilled workers. The purpose is to provide a surface protection method.

In order to solve the above-described conventional problems, the method frame of the present invention and the slope protection method using the frame have the following configurations.
The frame according to claim 1 of the present invention comprises: a main material arranged substantially orthogonal to the slope direction of the slope, and two diagonal materials formed of wood or bamboo and intersecting with the main material. And has a configuration including a frame formed in a triangular shape.
With this configuration, the following effects can be obtained.
(1) Since the frame body is formed in a triangular shape, if the length of the diagonal member is determined, intersects with the main material and is fixed at the intersection, the frame body can be made into a fixed shape, and the workability is excellent. This is because the triangle is determined to have a certain shape if the distance from the apex angle to the opposite side and the length of the two sides are determined.
(2) Since the frame body including the main material and the two diagonal members is formed in a triangular shape, the frame body has a truss structure, so that it deforms with respect to the bending moment as a whole without increasing its own weight. The slope can be stabilized without the frame body being bent or bent by its own weight such as a sandbag for vegetation.
(3) Since the diagonal is made of wood or bamboo, it can corrode due to aging and become a fertilizer for potential vegetation and plant seeds introduced into the frame, and the entire slope can be greened. The scenery can be adjusted and the environmental conservation is excellent.
(4) Timber and bamboo materials can be joined at any point to form diagonal materials, and it is highly flexible, and it is not necessary to align the length of wood and bamboo materials, so production without the need for trimming and man-hours is required. In addition, since no scrap material is generated, it is not necessary to dispose of the scrap material, resulting in excellent resource saving.
(5) It is possible to effectively use timber and bamboo harvested from on-site and nearby artificial forests and bamboo forests, greatly reducing the number of man-hours required for transportation and processing, and excellent energy saving.

  Here, as main materials, logs with branches dropped from the trunk, logs halved in the length direction, drooped corners with rounded surfaces and rounded corners, and materials Timber such as lumber processed into bars or plates by cutting out or cutting, bamboo harvested, pseudo-wood such as pseudo log made of synthetic resin, rebar, bar, I-shaped steel, grooved steel, H-shaped Steel materials such as steel are used.

  As diagonal materials, logs with the branches dropped from the trunk, logs halved in the length direction, drooped corners with rounded surfaces and rounded corners, material cut and cut Then, wood such as lumber processed into a rod shape or plate shape, bamboo material cut down, etc. are used. Among them, a log or bamboo made by dropping a branch from a trunk is preferable, and a log is particularly preferably used. Arbitrary materials can be used by simply dropping branches from the trunk without trimming to a predetermined length, so the number of processing steps can be significantly reduced, and the compression strength in the thickness direction is high, making it difficult to break This is because the durability of the frame is increased. As for wood and bamboo, a connecting material obtained by connecting a plurality of pieces of arbitrary lengths to be elongated can also be used as an oblique material.

  A frame formed by two diagonal members intersecting with the main material is formed in a triangular shape. This is to make the frame a truss structure. Especially, the frame formed in the isosceles triangle and equilateral triangle which makes a main material a base is used suitably. This is because the frame body is symmetric, so that the workability is excellent and the load can be evenly distributed to the left and right diagonal members to increase the durability.

  The intersection where the diagonal material and the main material intersect with each other is tightened with a connecting member such as a wire rod or requires man-hours for drilling, etc., but a connecting member such as a bolt is inserted and fixed in the hole drilled at the intersection. Can be. Moreover, it is also possible to form a groove portion having a U-shaped cross section in the diagonal member, and to make the crossing easy by fitting the main material. Moreover, it is also possible to separately prepare a connecting member such as a frame connector having a connecting piece and fix the diagonal member and the main member so as to cross each other.

The formed frame body is driven with a frame locking tool such as a pile or a reinforcing bar below the intersection of the diagonal material and the main material, or below the crossing point, and the frame is locked with the frame locking tool. Fix to the slope so that it does not move. Depending on the conditions such as the soil quality and the ground, anchor bars, underground beams and the like can be used as the frame locking device. By locking the frame body using the frame body locking tool and fixing it to the slope, the frame body may slip off the slope due to the weight of the frame body or the weight of a sandbag placed inside the frame body. It is possible to prevent the frame from being lifted off the slope. In addition, when the frame body locking tool is driven below the intersection point to increase the height of the frame body by overlapping the diagonal material and the main material, the diagonal material and the main material are engaged with the overlapping frame body locking tool. By stopping, it is possible to easily fix the stacked diagonal members and the like. In addition, by driving the frame body locking tool to a plurality of intersections or below the intersection points, the weight of the frame body, sandbag, etc. is dispersed, the load applied to one frame body locking tool is reduced, and the frame body is Can be easily fixed to the slope.
In addition, a main material locking tool such as a pile or a reinforcing bar is driven into the slope below the main material arranged in a direction substantially perpendicular to the slope direction of the slope, and the slope is the slope direction of the slope. Lock it to prevent it from falling.

Invention of Claim 2 of this invention is a law frame of Claim 1, Comprising: It has the structure by which the said diagonal is formed with the thinning material.
With this configuration, in addition to the operation obtained in the first aspect, the following operation can be obtained.
(1) It is possible to effectively use the thinned wood that has been harvested for the conservation of the forest, and to promote thinning around the site, which is excellent in resource saving and environmental conservation. Many of the forests that were planted after the war were destroyed due to the lack of necessary logging due to sluggish forestry, and thinned wood that was left in the forest even after being thinned could contribute to disasters such as debris flow. This is because the removal of thinned wood from forest land and the effective use of thinned wood are major issues.

  Wood and bamboo harvested from the forest are used as thinned wood, logs with branches dropped from the trunk, logs halved in the length direction, and timbers with rounded drops. What was processed like the depression angle etc. made into the shape of can be used. Especially, the thinned material cut | disconnected without aligning length, the end diameter, and a shape is used suitably. This is because the man-hours for aligning the length, end diameter, and shape are unnecessary and the productivity is excellent.

Invention of Claim 3 of this invention is a legal frame of Claim 1 or 2, Comprising: The said main material has the structure which is metal.
With this configuration, in addition to the operation obtained in the first or second aspect, the following operation can be obtained.
(1) Since the main material is made of metal, the tensile strength and compressive strength are large, so the main material can resist the bending moment as a whole by generating a large tensile force and compressive force. High tolerance.
(2) Since the main material is made of metal, a long main material can be easily formed, and a long-span method frame can be manufactured.

  Here, steel materials such as reinforcing bars, steel bars, I-shaped steels, groove-shaped steels, H-shaped steels, etc. are used as the metal main material.

The slope protection method according to claim 4 of the present invention includes a main material disposing step of disposing a plurality of main members substantially parallel to a direction substantially orthogonal to the slope direction of the slope, and the main surface disposed on the slope. And a frame forming step of fixing a plurality of diagonal members to form a plurality of triangular frames.
With this configuration, the following effects can be obtained.
(1) After arranging a plurality of main members in a direction substantially orthogonal to the gradient direction of the slope, crossing the main materials and fixing a plurality of diagonal members to form a plurality of triangular frames. Since the frame can be created by the method, it is excellent in workability, and special work such as placing concrete is not required and the frame can be installed by simple work, so the construction period can be greatly shortened and workers other than skilled workers can be installed. This makes it possible to realize a frame work with a superior workability.

  Here, as the main material placement step, the main material is locked to the slope with a main material locking tool such as an anchor made of pile or rebar to prevent slipping, and substantially perpendicular to the slope direction of the slope. A material in which a plurality of main materials are arranged substantially parallel to the direction is used.

In the frame forming process, marks are attached to the diagonal in advance at intervals of one side of the triangle of the frame, cross the main material at the position of this mark, and fix each other at the intersection of the diagonal and the main material. It is preferable because a frame having the same shape can be formed and the workability is excellent.
The formed frame body is driven by a frame locking tool such as an anchor made of pile or reinforcing bar on the intersection between the diagonal and the main material, or below the intersection, and locked to the slope so as not to move. .

After the frame formation process, vegetation, sandbag installation, stone paving, block paving, stone paving and vegetation are used together in the frame to stabilize the slope.
In addition, when the height of the frame is low, the main material and the diagonal material can be provided in a plurality of stages.

The invention according to claim 5 of the present invention is the slope protection method according to claim 4, wherein topsoil generated during excavation of a slope in the frame body formed in the frame body forming step, and / or Or it has the structure provided with the sandbag arrangement | positioning process which arranges the sandbag which accommodated the glass foam which heated the glass powder and was foamed.
With this configuration, in addition to the operation obtained in the fourth aspect, the following operation can be obtained.
(1) Since the topsoil and glass foam generated during excavation of the slope are housed in sandbags, it is difficult for rainwater to flow out, and the topsoil contains a lot of organic soil and has a large amount of potential vegetation. It is possible to realize the greening of slopes by using (native species) and to effectively use the soil generated locally. This is because locally generated soil is often carried away from the site and finally disposed of, and is not effectively utilized.
(2) Since the glass foam that is foamed by heating the glass powder has open and closed cells of various sizes, it can reduce the weight of the sandbag, and is excellent in water retention and moisture retention, and microorganisms Since it is easy to settle, decomposition of the litter can be promoted by the settled microorganism.

  Here, as a glass foam, what is manufactured by heating and foaming glass powder is used. Glass powder such as chemical bottles, cosmetics bottles, food seasoning bottles, beverage bottles, etc., wastes such as flat glass, window glass, glass panels for TVs and displays, and scrap generated from glass product factories Use of pulverized waste glass such as waste makes it possible to recycle waste and is excellent in resource saving. Moreover, the foaming agent which decomposes | disassembles and generate | occur | produces gas when it reaches | attains predetermined | prescribed temperature is mixed with glass powder, and a foaming agent decomposes | disassembles easily and a glass foam is obtained.

As the foaming agent, metal carbonates such as calcium carbonate and dolomite, metal nitrides such as silicon nitride, metal carbides such as silicon carbide, and the like can be used. In particular, the use of shell powder obtained by pulverizing shells such as oysters, scallops, red shellfish, clams, clams, abalone, turban shells, shijimi, crow mussels, and dolphin as a foaming agent can help recycle waste. Excellent in resource saving and preferable. Moreover, the following effects are obtained.
(1) Calcium hydroxide contained in shells absorbs moisture, and calcium hydroxide produced easily elutes, so that it effectively acts on sloped soil.
(2) Although the main component of the shell powder is calcium carbonate, it also contains magnesium and other components, and all of them are not thermally decomposed, so shell shell residues are dispersed in the substrate. For this reason, since calcium, magnesium, etc. are eluted in rainwater etc. from the shell residue etc. of glass foam, phosphoric acid dissolved in rainwater etc. is adsorbed by the reaction with the eluted calcium and the calcium content in the glass foam. Thus, it becomes calcium phosphate (insoluble) and can purify rainwater flowing on the slope.
(3) Glass foam using shell powder as a foaming agent is excellent in the adsorption effect of ammoniacal nitrogen and phosphate phosphorus, so it can reduce nitrogen and phosphorus necessary for plant growth to the slope. Suitable for plant growth.

The sandbag can contain organic materials such as peat moss, bark compost, and humus, and inorganic materials such as vermiculite, in addition to topsoil and glass foam. The sandbag is only required to be installed when the slope of the slope is gentle, but can be fixed with an anchor or the like in the case of a steep slope.
If necessary, plant seeds can be mixed or seedlings can be planted. For seeds and seedlings, it is desirable to select tree species from natural vegetation. This is because, if an alien species is selected as a tree species, once it has taken root, there is no room for native species (indigenous species) to grow, and the alien species breed and the local ecosystem may be destroyed.

As described above, according to the method frame of the present invention and the slope protection method using the same, the following advantageous effects can be obtained.
According to the invention of claim 1,
(1) If the length of the diagonal member is determined, intersected with the main material and fixed at the intersection, the frame body can be made into a certain triangular shape, and a method frame excellent in workability can be provided.
(2) Since the frame body has a truss structure, the deformation can be reduced with respect to the load acting on the frame body without increasing its own weight, and the frame body can be bent or bent by its own weight such as stone paving or vegetation. Therefore, it is possible to provide a method frame that is lightweight and has excellent slope stability.
(3) Diagonal materials corrode due to secular change, becoming latent vegetation and plant seed fertilizers introduced into the frame, and the whole slope can be greened and landscapes can be prepared and environmental conservation An excellent legal framework can be provided.
(4) Timber and bamboo materials can be joined at any point to form diagonal materials, and it is highly flexible, and it is not necessary to align the length of wood and bamboo materials, so production without the need for trimming and man-hours is required. Further, since no scrap material is generated, it is not necessary to dispose of the scrap material, and a legal framework excellent in resource saving can be provided.
(5) It is possible to effectively use timber and bamboo harvested from on-site and nearby artificial forests and bamboo forests, which can greatly reduce the number of man-hours required for transportation and processing, and provide a method frame with excellent energy savings. Can be provided.

According to invention of Claim 2, in addition to the effect of Claim 1,
(1) It is possible to effectively use thinned wood that has been harvested for forest conservation, and to promote thinning around the site, providing a legal framework with excellent resource conservation and environmental conservation. can do.

According to invention of Claim 3, in addition to the effect of Claim 1 or 2,
(1) A large tensile force and compressive force are generated in the main material to resist the bending moment as a whole, and a method frame having high resistance to earth pressure and the like can be provided.
(2) A long main material can be easily formed, and a long span span can be provided.

According to invention of Claim 4,
(1) Excellent workability, and no special work such as concrete placement is required, and the frame can be set up with simple work, so the construction period can be greatly shortened and the frame by workers other than skilled workers It is possible to provide a slope protection method that can realize the work and is excellent in workability.

According to invention of Claim 5, in addition to the effect of Claim 4,
(1) It is possible to provide a slope protection method that can realize slope planting by native species (natural species) and can effectively utilize locally generated soil.
(2) To provide a slope protection method that can reduce the weight of sandbags, and is excellent in water retention and moisture retention and easily settles microorganisms, and can promote decomposition of litter by the settled microorganisms. be able to.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
(Embodiment 1)
FIG. 1 is a perspective view of a method frame according to Embodiment 1 of the present invention.
In the figure, 1 is a frame in the first embodiment, 100 is a sloped surface of a mountain, a slope formed with construction of a dike or road, 2 is a reinforcing bar, a bar, I-shaped steel, a grooved steel, H-shaped This is made of metal such as steel such as steel, synthetic resin, wood, etc., and is substantially the same as the height of the triangular frame 8 described later in a direction substantially orthogonal to the gradient direction of the slope 100 (this embodiment) In FIG. 1, a plurality of main members arranged approximately in parallel with a distance of about 1.73 m), 3 is a main material locking tool such as an anchor formed of a pile or a reinforcing bar, and the main material in the slope direction of the slope 100 The main material 2 is driven into the slope 100 below the main material 2 so as not to slide down, and the main material 2 is locked and fixed to the slope 100. Reference numeral 4 denotes a plurality of diagonal materials that are made of wood or bamboo and obliquely intersect with the main material 2. The diagonal materials 4 are arranged substantially in parallel with appropriate intervals. 5 is an intersection where the main material 2 and the diagonal material 4 cross each other, 6 is a plurality of diagonal materials which are formed of wood or bamboo and obliquely intersect with the main material 2 and the diagonal material 4 at the intersection point 5 and 7 It is a fixing member such as a wire that fixes the main material 2 and the diagonal materials 4 and 6 at the intersection 5 where the main material 2 and the diagonal materials 4 and 6 intersect. When a bolt, a nut, or the like is used as the fixing member 7, the bolt is inserted into the diagonal members 4, 6 at the intersection 5 or the hole formed in the main material 2, and the nut is fastened and fixed. When the main material 2 made of reinforcing bars is used, it is difficult to make a hole in the main material 2. Therefore, it is preferable to use a wire rod, a band-shaped band or the like as the fixing member 7. Reference numeral 8 denotes a frame formed in a triangular shape having the main material 2 and the diagonal materials 4 and 6 as three sides, and 9 denotes two diagonals whose end portions are overlapped with the slope 100 in the horizontal direction and the height direction. Connecting members 10 such as wire rods and bolts for connecting the members 4 and 4 and the diagonal members 6 and 6 are piled in the slope 100 below the intersection 5 to lock the frame 8 and fix it to the slope 100 and reinforcing bars. It is a frame locking tool such as an anchor formed by the like.
Here, in the present embodiment, the three sides of the main material 2, the diagonal materials 4 and 6 constituting the frame body 8 are formed to have substantially the same length (about 2 m in the present embodiment). The body 8 is formed in a substantially equilateral triangle shape. The main material 2 is made of a metal such as a steel bar, a steel bar, an I-shaped steel, a grooved steel, or an H-shaped steel, and the diagonal materials 4 and 6 are made of thinned wood.

Regarding the frame of the first embodiment of the present invention configured as described above, the construction method will be described with reference to the drawings, and the slope protection method using the frame of the first embodiment will be described below. To do.
FIG. 2 is a schematic diagram showing a state in which the main material is arranged on the slope, FIG. 3 is a schematic diagram showing a state in which the diagonal material is arranged and a frame is formed, and FIG. It is a schematic diagram which shows the state by which the sandbag is arrange | positioned.
In the figure, 11 is a sandbag containing topsoil and glass foam generated during excavation of a slope. In the present embodiment, the glass foam accommodated in the sandbag 11 is obtained by heating and foaming glass powder formed by pulverizing waste glass such as a glass bottle together with a foaming agent for shell powder. ing.

In the slope protection method using the slope in the first embodiment, first, as shown in FIG. 2, in a direction substantially orthogonal to the slope direction of the slope 100 using a truck crane or a worker (not shown), A plurality of main materials 2 are arranged on the slope 100 while being locked by the main material locking tool 3 in a substantially parallel manner with an interval of about 1.73 m (main material arranging step).
The diagonal members 4 and 6 are thinned from nearby forests, branches are dropped from the trunk, cut to an appropriate length, and marked at intervals of one side of the frame 8. In the present embodiment, since the frame body 8 having a side of about 2 m is formed, a mark is attached with an ink or the like at intervals of 2 m from one end side of the thinned material cut into a length of 2 m or more.
Next, as shown in FIG. 3, using a truck crane or a worker (not shown), a plurality of main members 2 arranged on the slope 100 at the positions of the marks attached to the diagonal members 4 and 6 (thinned material) and A plurality of diagonal members 4 and 6 are fixed to the main member 2 at the intersection 5 by using the fixing member 7 to form a plurality of equilateral triangular frames 8 each having a side of about 2 m to complete the method frame 1. (Frame forming step). In the frame 1, the frame body locking tool 10 is driven into the slope 100 below the intersection 5 and is locked to the slope 100 so as not to move. When the diagonal members 4 and 6 are elongated, they are connected and extended in the longitudinal direction using the connecting member 9.
Next, as shown in FIG. 4, the sandbag 11 is placed in the frame 8 to stabilize the slope 100 (soilbag placement step).

As described above, since the legal frame in the first embodiment of the present invention is configured, the following operation is obtained.
(1) Since the frame body 8 is formed in a triangular shape, if the diagonal members 4 and 6 are marked at intervals of one side of the frame body 8 and intersect with the main material 2 and fixed at the intersection 5, the frame body 8 can be made into a fixed shape and is excellent in workability.
(2) Since the frame body 8 including the main material 2 and the two diagonal members 4 and 6 is formed in a triangular shape, the frame body 8 has a truss structure, so that the weight of the normal frame 1 is increased. Therefore, the deformation can be reduced with respect to the load acting on the frame body 8, and the slope 100 can be stabilized without the frame body 8 being bent or bent by the dead weight of the sandbag 11. In particular, since one side of the frame 8 is an equilateral triangle having substantially the same length, it can be easily arranged according to the dimensions and has excellent workability, and the load can be evenly distributed to increase the bending strength.
(3) Since the diagonal materials 4 and 6 are made of wood or bamboo, they corrode due to aging and become fertilizers for potential vegetation and plant seeds introduced into the frame 8, and the slope 100 as a whole. Can be greened and landscapes can be arranged, and environmental conservation is excellent.
(4) Since the diagonal materials 4 and 6 are made of thinned wood, it is possible to effectively utilize the thinned wood that has been harvested for forest conservation, and to promote thinning around the site. Excellent resource and environmental conservation.
(5) Since the main material 2 is made of metal, the tensile strength and the compressive strength are large, so that the main material 2 can resist the bending moment as a whole by generating a large tensile force and compressive force. High resistance to etc. Further, the long main material 2 can be easily formed, and the long span method frame 1 can be manufactured.

Moreover, according to the slope protection method using the method frame in Embodiment 1 of this invention, the following effects are obtained.
(1) After arranging a plurality of main members 2 in a direction substantially orthogonal to the gradient direction of the slope 100, a plurality of triangular members 4 and 6 are fixed by crossing with the main member 2 to fix a plurality of triangular shapes. Since the frame 1 is formed by forming the frame 8, the work frame is excellent in workability, and the frame 1 can be installed by a simple work without requiring special work such as concrete placement. Work can be realized and workability is excellent.
(2) Since the topsoil and glass foam generated during excavation of the slope are housed in the sandbag 11, it is difficult for rainwater to flow out, and the topsoil is rich in organic soil and has a large amount of potential vegetation. It is possible to realize the greening of slopes by using seeds (natural species) and to effectively use the soil generated locally. This is because, conventionally, the soil generated locally is often carried away from the site and finally disposed, and is not effectively utilized.
(3) Since the glass foam obtained by heating the glass powder has open and closed cells of various sizes, it can reduce the weight of the sandbag 11, and is excellent in water retention and moisture retention as well as microorganisms. Since it is easy to settle, decomposition | disassembly of a litter can be accelerated | stimulated by the settled microorganisms.
(4) Calcium oxide contained in the shell as a foaming agent for the glass foam absorbs moisture, and calcium hydroxide is easily generated and eluted, so that it effectively acts on the soil. In addition, the glass foam foamed with shell powder can purify rainwater flowing on the slope and is excellent in the adsorption effect of ammonia nitrogen and phosphate phosphorus. It can reduce phosphorus to the slope and is suitable for plant growth.
(5) Since the frame locking tool 10 is driven below the intersection 5 of the frame 1, the load applied to one frame locking tool 10 by dispersing the weight of the frame 1, the sandbag 11, etc. The frame 1 can be easily locked to the slope 100.

In the present embodiment, the case where the frame body 8 is formed in a regular triangle shape has been described. However, since the length of one side of the frame body 8 can be appropriately selected, the interval between the marks of the diagonal members 4 and 6 is set. By appropriately selecting, the shape of the frame body 8 may be an isosceles triangle or a triangle having different lengths on three sides according to the state of the slope.
Moreover, although thinned wood cut to a length of 2 m or more was used as the diagonal members 4 and 6, it is not limited to this length, and any length of wood or bamboo is connected at any location. Thus, it can be used in a long shape.
Further, when the height of the frame body 8 is low, the main material 2 and the diagonal materials 4 and 6 can be stacked in a height direction so as to have a plurality of levels. In this case, it is desirable to increase the height of the diagonal members 4 and 6. This is because the diagonal materials 4 and 6 made of wood or bamboo are corroded due to secular change, and are excellent in environmental conservation.

  The present invention relates to a frame for stabilizing slopes formed in the construction of mountain slopes, embankments, roads, and the like, and a slope protection method using the same, and has excellent workability, and the frame body has a truss structure. Therefore, the deformation can be reduced with respect to the bending moment as a whole without increasing its own weight, and the stability of the slope is light without the frame body being bent or bent by its own weight such as stone paving or vegetation. In addition, it has become a fertilizer for plant seeds that have been corroded due to aging and introduced into the potential vegetation and frame, and the entire slope can be greened and the landscape can be arranged, and it has excellent environmental conservation Legal frames can be provided, workability is excellent, and special work such as placing concrete is not required, so the legal frames can be installed with simple work. Slope protection method It can be provided.

The perspective view of the legal frame in Embodiment 1 Schematic diagram showing the main material placed on the slope Schematic diagram showing a state in which diagonal members are arranged and a frame is formed Schematic diagram showing the state in which a sandbag is placed on the frame

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Method frame 2 Main material 3 Main material latching tool 4 Diagonal material 5 Intersection 6 Diagonal material 7 Fixing member 8 Frame body 9 Connection member 10 Frame body latching tool 11 Dirt 100 Slope

Claims (5)

  A frame having a main body arranged substantially orthogonal to the slope direction of the slope and two diagonal members made of wood or bamboo and intersecting with the main material, and having a triangular shape A legal frame characterized by   The frame according to claim 1, wherein the diagonal material is formed of thinned wood.   The legal frame according to claim 1 or 2, wherein the main material is made of metal.   A main material arranging step of arranging a plurality of main materials in a direction substantially orthogonal to the slope direction of the slope, and fixing the plurality of diagonal materials by crossing the main materials arranged on the slope. And a frame body forming step for forming a plurality of frame bodies.   A sandbag placement step of placing a topsoil generated during excavation of a slope and / or a sandbag containing a glass foam foamed by heating glass powder in the frame formed in the frame body forming step. The slope protection method according to claim 4, wherein the slope protection method is provided.

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