JP6072498B2 - Avalanche prevention slope structure - Google Patents
Avalanche prevention slope structure Download PDFInfo
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- JP6072498B2 JP6072498B2 JP2012229077A JP2012229077A JP6072498B2 JP 6072498 B2 JP6072498 B2 JP 6072498B2 JP 2012229077 A JP2012229077 A JP 2012229077A JP 2012229077 A JP2012229077 A JP 2012229077A JP 6072498 B2 JP6072498 B2 JP 6072498B2
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- 230000002265 prevention Effects 0.000 title claims description 9
- 239000012779 reinforcing material Substances 0.000 claims description 46
- 239000000945 filler Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 46
- 239000007787 solid Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 4
- 230000001629 suppression Effects 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Description
本発明は、斜面の積雪層の滑りを抑止して雪崩を防止する雪崩防止法面構造に関する。 The present invention relates to an avalanche prevention slope structure that prevents avalanches by preventing slippage of a snow layer on a slope.
斜面の積雪層は、積雪層底面の地熱による融雪や積雪層の圧密沈下が要因となり、重力の作用によって常時谷側に移動しており、この積雪層の移動が雪崩発生の大きな要因となっている。斜面積雪層の移動や変形（クリープ現象）により、斜面の積雪層全体が滑り出し、斜面積雪層全体がバランスを崩して全層雪崩となる。 The snow layer on the slope is constantly moving to the valley side by the action of gravity due to the melting of snow and the consolidation of the snow layer due to the geothermal heat at the bottom of the snow layer, and this movement of the snow layer is a major factor in the occurrence of avalanches. Yes. Due to the movement and deformation (creep phenomenon) of the slope area snow layer, the entire snow layer on the slope starts to slide, and the entire snow area of the slope area loses its balance and becomes an all layer avalanche.
斜面の下に道路がある場合には、当該斜面の中腹に特許文献１記載のような雪崩防護柵を設置するのが一般的である。しかし、当該雪崩防護柵設置箇所より下の斜面に積雪し積雪層ができた場合、当該積雪層がずり落ちて、道路に影響を及ぼすことがあった。 When there is a road under a slope, it is common to install an avalanche protective fence as described in Patent Document 1 on the middle of the slope. However, when snow has accumulated on the slope below the location where the avalanche protection fence is installed, the snow layer may slip and affect the road.
当該積雪層のずり落ち対策としては、ガードロープのような弾力性を有するワイヤロープを積雪層の滑り止めとして使用する方法がある。また、特許文献２、特許文献３記載の凸型ブロック等の雪崩抑止施設を斜面に設置することも一般的に行われている。 As a countermeasure against the falling of the snow layer, there is a method of using a wire rope having elasticity such as a guard rope as an anti-slip of the snow layer. In addition, avalanche prevention facilities such as convex blocks described in Patent Documents 2 and 3 are generally installed on slopes.
前記ガイドロープによる方法は、簡易で設置コストも小さく、降雪初期の雪質が柔らかい時期には中抜け現象により受圧幅の小さいワイヤロープは垂れ下がる等の雪害が発生しないが、雪質が締め固まる融雪期には斜面積雪層による雪の圧力や沈降荷重により垂れ下がってしまい、ワイヤロープを計画高さに維持することが困難である。 The method using the guide rope is simple and low in installation cost, and when the snow quality at the beginning of snowfall is soft, snow damage such as hanging of the wire rope with a small pressure receiving width does not occur due to the hollowing out phenomenon, but the snow quality is solidified. It is difficult to maintain the wire rope at the planned height because it hangs down due to snow pressure and settling load due to the snow layer in the oblique area.
前記凸型ブロック等の雪崩抑止施設を斜面に設置する方法は、設置するために法面上に基礎を施工しなければならず、設置工事が大規模になり、コストも嵩む。 In the method of installing the avalanche prevention facility such as the convex block on the slope, in order to install it, a foundation must be constructed on the slope, the installation work becomes large-scale and the cost increases.
本発明の目的は、簡易で設置コストも小さく効果的な雪崩防止法面構造を提供することである。 An object of the present invention is to provide an effective avalanche prevention slope structure that is simple and low in installation cost.
本発明者は、成形した法面上に、多数のセルからなりハニカム構造をしたハニカム状立体補強材を展帳してセルの立体形状を維持したままの空のセル（空ハニカム層）を設置することで、前記課題を解決できることを見出し、本発明を完成した。 The present inventor places an empty cell (empty honeycomb layer) while maintaining the three-dimensional shape of the cell by extending a honeycomb-shaped three-dimensional reinforcing material composed of a large number of cells and having a honeycomb structure on the formed slope. As a result, it was found that the above problems could be solved, and the present invention was completed.
請求項１記載の発明は、
樹脂製の複数枚ストリップ材を一定間隔の結合部位にて結合したハニカム状立体補強材を展張してハニカム状のセル構造を形成して、成形した法面上に当該展張したハニカム状立体補強材を設置する雪崩防止用ハニカム法面であり、
当該ハニカム状立体補強材を構成するストリップ材はセル内に溜まる水を排出するために孔を有し、
当該ハニカム状立体補強材のセル高の半分を越えない高さまで砂、土砂、砕石等の水はけの良い充填材を充填しセル形状を維持したままにする空ハニカム層を設置した雪崩防止用ハニカム法面である。
The invention described in claim 1
A honeycomb-shaped three-dimensional reinforcing material in which a plurality of resin strip materials are bonded together at fixed intervals is expanded to form a honeycomb-shaped cell structure, and the expanded honeycomb-shaped three-dimensional reinforcing material is formed on the molded slope. It is a honeycomb slope for avalanche prevention to install,
The strip material constituting the honeycomb-shaped three-dimensional reinforcing material has a hole for discharging water accumulated in the cell,
A honeycomb method for preventing an avalanche with an empty honeycomb layer that is filled with a well-drained filler such as sand, earth and sand, and crushed stone to a height not exceeding half of the cell height of the honeycomb-shaped three-dimensional reinforcement. Surface.
成形した法面上に、多数のセルからなりハニカム構造をしたハニカム状立体補強材を展帳して設置した後、ハニカム状立体補強材の通常の使用方法ではセルにセル高まで充填材を完全に満たすが、本発明に於いてはセルに充填材を完全に満たさずに、セルの立体形状を維持したままにすることが発明の特徴点である。 After installing and installing a honeycomb-shaped three-dimensional reinforcing material consisting of a large number of cells on the molded slope, the normal use of the honeycomb-shaped three-dimensional reinforcing material is to completely fill the cell up to the cell height. However, in the present invention, it is a feature of the invention that the three-dimensional shape of the cell is maintained without completely filling the cell with the filler.
請求項２記載の発明は、
前記ハニカム状立体補強材が高密度ポリエチレン樹脂製である請求項１記載の雪崩防止用ハニカム法面である。
The invention according to claim 2
The honeycomb surface for preventing avalanche according to claim 1 , wherein the honeycomb-shaped three-dimensional reinforcing material is made of high-density polyethylene resin .
本発明により、簡易で設置コストも小さく雪崩抑止効果の高い雪崩防止法面構造を提供することができる。 According to the present invention, it is possible to provide an avalanche prevention slope structure that is simple, has low installation costs, and has a high avalanche suppression effect.
以下、本発明の実施形態について説明する。なお、本実施形態は、本発明を実施するための一形態に過ぎず、本発明は本実施形態によって限定されるものではなく、本発明の要旨を逸脱しない範囲で種々の変更実施の形態が可能である。 Hereinafter, embodiments of the present invention will be described. Note that this embodiment is merely an embodiment for carrying out the present invention, and the present invention is not limited by this embodiment, and various modified embodiments can be made without departing from the gist of the present invention. Is possible.
本発明は、成形した法面上に、多数のセルからなりハニカム構造をしたハニカム状立体補強材を展帳して設置し、当該セルにセル高までの充填材を満たさずにセル形状を維持したままにする空ハニカム層を設置した雪崩防止用ハニカム法面である。本発明では、成形した法面上に、多数のセルからなりハニカム構造をしたハニカム状立体補強材を展帳して設置した後、ハニカム状立体補強材の通常の使用方法ではセルにセル高まで充填材を完全に満たすが、本発明に於いてはセルに充填材を完全に満たさずに、セルの立体形状を維持したままにすることで雪崩を抑止しているが、このような事例はこれまで知られていない。 In the present invention, a honeycomb-shaped three-dimensional reinforcing material composed of a large number of cells and having a honeycomb structure is arranged and installed on a formed slope, and the cell shape is maintained without filling the cell up to the cell height. This is an avalanche-preventing honeycomb slope with an empty honeycomb layer that is left as it is. In the present invention, a honeycomb-shaped three-dimensional reinforcing material composed of a large number of cells on a molded slope is installed and installed, and then in a normal method of using the honeycomb-shaped three-dimensional reinforcing material, the cell has a cell height up to the cell height. Although the filler is completely filled, in the present invention, the avalanche is suppressed by maintaining the three-dimensional shape of the cell without completely filling the cell with the filler. Not known so far.
以下、本発明に用いるハニカム状立体補強材を、図を用いて説明する。
図１は、ハニカム状立体補強材１の展張前の斜視図である。ハニカム状立体補強材１は、複数枚ストリップ材２を一定間隔の結合部位４にて結合したものである。このハニカム状立体補強材１は展張方向５に展張してハニカム状のセル構造を形成する。
Hereinafter, the honeycomb-shaped three-dimensional reinforcing material used in the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of the honeycomb-shaped three-dimensional reinforcing material 1 before expansion. The honeycomb-shaped three-dimensional reinforcing material 1 is obtained by bonding a plurality of strip materials 2 at bonding sites 4 at regular intervals. The honeycomb-shaped three-dimensional reinforcing material 1 is stretched in the stretching direction 5 to form a honeycomb-shaped cell structure.
ハニカム状立体補強材に利用される素材は樹脂が好ましく、樹脂の中でも高密度ポリエチレンが好適である。 Resin is preferable as the material used for the honeycomb-shaped three-dimensional reinforcing material, and among the resins, high-density polyethylene is preferable.
ストリップ材２にはセル内に溜まる水を排出するために孔３を設ける。孔の大きさや形状はどのようなものでもよい。孔の数は多い方が良いが、多すぎるとストリップ材の強度が低下するため、ストリップ材の面積の４０％を越えない程度の数がよい。また孔の配置は直列でも千鳥配置でもよい。 The strip material 2 is provided with holes 3 for discharging water accumulated in the cells. The hole may have any size or shape. The number of holes is preferably large, but if the number is too large, the strength of the strip material is reduced, so that the number should not exceed 40% of the area of the strip material. Further, the holes may be arranged in series or in a staggered manner.
図２は、図１で示したハニカム状立体補強材を展張した際の斜視図である。ハニカム状立体補強材１を展張すると、ハニカム状のセル６が形成される。一般的なハニカム状立体補強材の使用方法としては、ハニカム状立体補強材セル６内にセルの高さまで充填材７を充填して締め固めを行うことにより、剛性のあるハニカム構造体を形成させる。 FIG. 2 is a perspective view when the honeycomb-shaped three-dimensional reinforcing material shown in FIG. 1 is stretched. When the honeycomb-shaped three-dimensional reinforcing material 1 is stretched, honeycomb-shaped cells 6 are formed. As a general method for using a honeycomb-shaped three-dimensional reinforcing material, a honeycomb-shaped three-dimensional reinforcing material cell 6 is filled with a filler 7 up to the height of the cell and compacted to form a rigid honeycomb structure. .
しかし本発明は、充填材を展帳したハニカム状立体補強材のセルの高さまで、充填せず、セル形状を残したままにする点に特徴がある。セル形状を残すことで、当該ハニカム状立体補強材のセル壁に積雪が引っかかり、積雪層が容易に斜面を滑り落ちることがない。 However, the present invention is characterized in that it is not filled up to the height of the cell of the honeycomb-shaped three-dimensional reinforcing material in which the filler is extended, and the cell shape is left as it is. By leaving the cell shape, snow is caught on the cell walls of the honeycomb three-dimensional reinforcing material, and the snow layer does not easily slide down the slope.
図３は、ハニカム状立体補強材１を斜面上で展帳した際の斜視図である。図３のようにハニカム状立体補強材に全く充填材を充填しない状態のまま固定することができれば、最も効果的に積雪層を斜面に固定することができる。このように斜面に固定する方法としては、アンカーピンや杭などにより固定する方法や、ハニカム状立体補強材を設置する前の斜面にコンクリートを打設してコンクリートが固まらないうちにハニカム状立体補強材を展帳敷設する方法などが挙げられる。 FIG. 3 is a perspective view when the honeycomb-shaped three-dimensional reinforcing material 1 is extended on a slope. If the honeycomb-shaped three-dimensional reinforcing material can be fixed without being filled with the filler as shown in FIG. 3, the snow layer can be most effectively fixed to the slope. As a method of fixing to the slope in this way, there is a method of fixing with an anchor pin or a pile or the like, and the honeycomb-shaped solid reinforcement before the concrete is hardened by placing concrete on the slope before installing the honeycomb-shaped solid reinforcement. For example, a method of laying an exhibition book.
図４は、斜面上で展帳したハニカム状立体補強材１のセルに充填材をセル高の半分程度まで充填した際の斜視図である。図５は、斜面上で展帳したハニカム状立体補強材１のセルに充填材をセル高の半分程度まで充填した際の断面図である。ハニカム状立体補強材を固定するためにハニカム状立体補強材のセル形状を維持できる程度に充填材を充填することが可能である。図４においては、セル高の半分程度の深さに法面を掘削し、掘削面にハニカム状立体補強材を展帳して敷設し、セル高の半分程度まで充填材（砕石）を充填した例を示した。 FIG. 4 is a perspective view when the cells of the honeycomb-shaped three-dimensional reinforcing material 1 extended on the slope are filled with a filler up to about half of the cell height. FIG. 5 is a cross-sectional view of the cells of the honeycomb-shaped three-dimensional reinforcing material 1 extended on the slope when the filler is filled to about half the cell height. In order to fix the honeycomb-shaped three-dimensional reinforcing material, the filler can be filled to such an extent that the cell shape of the honeycomb-shaped three-dimensional reinforcing material can be maintained. In FIG. 4, the slope is excavated to a depth of about half of the cell height, and a honeycomb solid reinforcing material is laid and laid on the excavated surface, and the filler (crushed stone) is filled to about half of the cell height. An example is shown.
展帳したハニカム状立体補強材に充填する充填材としては、砂、土砂、砕石などどのようなものでも使用できるが、できれば水はけのよい充填材がよい。水はけの良い充填材の例としては砂、砕石が挙げられる。しかし、セル内の充填材上を植生させる場合には水はけが良すぎると植生が阻害されるので、適宜選択する。セルの充填材上を植生する方法としては、充填材上に植生マットを敷設する、種子を蒔く等の方法がある。 Any filler such as sand, earth and sand, or crushed stone can be used as the filler for filling the expanded honeycomb three-dimensional reinforcing material, but a filler with good drainage is preferable. Examples of fillers with good drainage include sand and crushed stone. However, when vegetation is made on the filler in the cell, vegetation is hindered if drainage is too good. As methods for vegetation on the cell filler, there are methods such as laying a vegetation mat on the filler and sowing seeds.
法面上に展帳したハニカム状立体補強材の上から、ハニカム状立体補強材のセル形状を維持できる程度にモルタル吹き付けを行って、ハニカム状立体補強材の自立性を高めることもできる。これは、プラスチックからなるハニカム状立体補強材のセルの強度を高めるための方策であり、モルタル吹き付けを行うと、積雪に対してよりハニカム状立体補強材のセル壁が食い込み、雪崩抑止効果を高めることができる。 The self-supporting property of the honeycomb-shaped three-dimensional reinforcing material can be enhanced by spraying mortar from the honeycomb-shaped three-dimensional reinforcing material on the slope so as to maintain the cell shape of the honeycomb-shaped three-dimensional reinforcing material. This is a measure to increase the strength of the cells of the honeycomb-shaped three-dimensional reinforcing material made of plastic. When mortar is sprayed, the cell walls of the honeycomb-shaped three-dimensional reinforcing material bite into the snow and increase the avalanche suppression effect. be able to.
図６は、図５の法面に積雪した場合の様子を示した断面図である。図のように法面にハニカム状立体補強材を展帳して設置すると、その上に積もった積雪が当該ハニカム状立体補強材のセルに食い込み、積雪と法面との間の摩擦力が増大し、雪崩の抑止効果が発揮される。 FIG. 6 is a cross-sectional view showing a state where snow has accumulated on the slope of FIG. As shown in the figure, when a honeycomb solid reinforcing material is installed on the slope, the accumulated snow bites into the cells of the honeycomb solid reinforcing material, and the frictional force between the snow and the slope increases. And the avalanche suppression effect is demonstrated.
本発明のハニカム状立体補強材を展帳して法面に設置する方法を利用することで、低価格で簡単に効果的な雪崩防止法面構造を提供することができる。 By utilizing the method of extending the honeycomb-shaped three-dimensional reinforcing material of the present invention and installing it on the slope, it is possible to provide an effective avalanche prevention slope structure at low cost.
１ ハニカム状立体補強材
２ ストリップ材
３ 孔
４ 結合部位
５ 展帳方向
６ セル
７ 充填材
８ 積雪
DESCRIPTION OF SYMBOLS 1 Honeycomb-like three-dimensional reinforcement 2 Strip material 3 Hole 4 Bonding part 5 Direction of exhibition 6 Cell 7 Filling material 8 Snow cover
Claims (2)
当該ハニカム状立体補強材を構成するストリップ材はセル内に溜まる水を排出するために孔を有し、
当該ハニカム状立体補強材のセル高の半分を越えない高さまで砂、土砂、砕石等の水はけの良い充填材を充填しセル形状を維持したままにする空ハニカム層を設置した雪崩防止用ハニカム法面。 A honeycomb-shaped three-dimensional reinforcing material in which a plurality of resin strip materials are bonded together at fixed intervals is expanded to form a honeycomb-shaped cell structure, and the expanded honeycomb-shaped three-dimensional reinforcing material is formed on the molded slope. It is a honeycomb slope for avalanche prevention to install,
The strip material constituting the honeycomb-shaped three-dimensional reinforcing material has a hole for discharging water accumulated in the cell,
A honeycomb method for preventing an avalanche with an empty honeycomb layer that is filled with a well-drained filler such as sand, earth and sand, and crushed stone to a height not exceeding half of the cell height of the honeycomb-shaped three-dimensional reinforcement. surface.
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| JP2012229077A JP6072498B2 (en) | 2012-10-16 | 2012-10-16 | Avalanche prevention slope structure |
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| KR101958906B1 (en) * | 2016-04-01 | 2019-03-18 | 주식회사 한오션 | sand catching unit |
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| JP2544605Y2 (en) * | 1993-12-24 | 1997-08-20 | 萩原工業株式会社 | Mat for laying artificial skis |
| JPH08302609A (en) * | 1995-05-01 | 1996-11-19 | Mitsui Sekika Sanshi Kk | Material to be laid in skiing ground |
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| JP2011069186A (en) * | 2009-08-24 | 2011-04-07 | Morita Industry Co Ltd | Flooding slope greening structure |
| US8172486B2 (en) * | 2009-09-11 | 2012-05-08 | Seven States Enterprise Co., Ltd. | Engineering-purpose netted vegetation blanket |
| NL1038310C2 (en) * | 2010-10-15 | 2012-04-17 | Hugo Vries | METHOD FOR FORMING A SOIL-COVERING LAYER AND SOUND-SHAPED-COATING LAYER |
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