JPH0381405A - Protective structure of rock shade - Google Patents
Protective structure of rock shadeInfo
- Publication number
- JPH0381405A JPH0381405A JP21483089A JP21483089A JPH0381405A JP H0381405 A JPH0381405 A JP H0381405A JP 21483089 A JP21483089 A JP 21483089A JP 21483089 A JP21483089 A JP 21483089A JP H0381405 A JPH0381405 A JP H0381405A
- Authority
- JP
- Japan
- Prior art keywords
- rock
- shade
- blocks
- roof part
- impact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011435 rock Substances 0.000 title claims abstract description 31
- 230000001681 protective effect Effects 0.000 title claims description 3
- 239000006260 foam Substances 0.000 claims abstract description 5
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 5
- 239000000057 synthetic resin Substances 0.000 claims abstract description 5
- 239000004570 mortar (masonry) Substances 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 210000000078 claw Anatomy 0.000 abstract description 2
- 238000005187 foaming Methods 0.000 abstract 2
- 229920002223 polystyrene Polymers 0.000 abstract 2
- 229920006328 Styrofoam Polymers 0.000 description 7
- 229920006248 expandable polystyrene Polymers 0.000 description 7
- 239000008261 styrofoam Substances 0.000 description 7
- 239000002344 surface layer Substances 0.000 description 4
- 230000000116 mitigating effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
- E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、落石等による被害を防止するロックシェード
の保護構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a protective structure for a rock shade that prevents damage from falling rocks and the like.
［従来の技術］
長い年月を経て安定した自然勾配を開削して道路を築造
すると、開削により形成された法面が急傾斜の場合は、
雨や地震等により法面が部分的に崩壊したり、浮石が躊
下する危険が大きい。[Conventional technology] When a road is constructed by excavating a natural slope that has remained stable over a long period of time, if the slope formed by the excavation is steep,
There is a great risk that the slope will partially collapse or floating rocks will fall due to rain or earthquakes.
このような法面には、擁壁、ロックアンカー吹付はコン
クリート、植生等の保護工を施して保護している。しか
し、これらは表層部の保護には効果があるが、亀裂が発
生するなどして緩んできた岩質の法面を長期に、かつ確
実に安定させることは、困難であるばかりでなく、その
安定度をチエツクする手法も確立されていない。Such slopes are protected by retaining walls, rock anchor spraying, concrete, vegetation, etc. However, although these methods are effective in protecting the surface layer, it is not only difficult to reliably stabilize rocky slopes that have loosened due to cracks over a long period of time, but also There is also no established method for checking stability.
したがって、予測できない法面の崩壊や落石から道路交
通を保護する目的で１、危険箇所にはロックシェードが
設置され、その数も全国では数千箇所に及んでいる。Therefore, in order to protect road traffic from unpredictable slope collapses and rockfalls, rock shades are installed in dangerous areas, and there are thousands of them across the country.
［発明が解決しようとする課題］
このロックシェードは、国又は県により構造の標準規格
が決められ、これに準拠して設計築造されている。しか
し、老朽化による強度の低下ばかりでなく、予測以上の
落石が発生した場合、その衝撃によってロックシェード
が部分的に破損したり、倒壊して大きい被害が生じるこ
とが度々ある。[Problems to be Solved by the Invention] Structure standards are determined by the country or prefecture, and the rock shade is designed and constructed in accordance with these standards. However, not only does the strength deteriorate due to aging, but when a rockfall occurs that exceeds expectations, the rock shade often partially breaks or collapses due to the impact, causing great damage.
この対策としては、ロックシェードの構造強度を大きく
するか、屋根部の傾斜を大きくして衝撃を緩和する方法
が考えられる。しかし、既存のロックシェードを補強す
ることは、実際上、極めて困難である。禽た、屋根部の
傾斜を大きくするには、片側に空地を要するなどの地形
的な制約を受け、すべての場合に適用することはできな
い。Possible countermeasures to this problem include increasing the structural strength of the rock shade or increasing the slope of the roof to cushion the impact. However, it is actually extremely difficult to reinforce existing rock shades. However, increasing the slope of the roof cannot be applied in all cases due to topographical constraints such as the need for open space on one side.
本発明は、既存又は新設のロックシェードに対する落石
等の衝撃を緩和するロックシェードの保護構造に関する
。TECHNICAL FIELD The present invention relates to a protection structure for a rock shade that reduces the impact of falling rocks or the like on an existing or newly installed rock shade.
［課題を解決するための手段］
本発明によれば、落石等による被害を防止するロックシ
ェードの屋根部上に合成樹脂発泡体を積み重ねている。[Means for Solving the Problems] According to the present invention, synthetic resin foam is stacked on the roof of a rock shade that prevents damage from falling rocks and the like.
上記合成樹脂発泡体は、衝撃緩和性、軽量性、自立性、
耐水性、施工性の優れた例えば発泡スチロールブロック
を用いるのが好ましい。The above synthetic resin foam has impact mitigation properties, lightness, self-supporting properties,
It is preferable to use, for example, a foamed polystyrene block, which has excellent water resistance and workability.
また、発泡スチロールブロックは、相互に上下前後左右
を連結金具いわゆるジベルで連結し、表層を耐腐食性の
ネットで覆ってロックシェードの屋根部に固定し、ネッ
ト上に軽量コンクリート又はモルタル等の保護工を施し
、更に、屋根部の傾斜が大きい場合は、ネットで覆う前
に、発泡スチロールブロックをワイヤで束ねて屋根部に
固定するのが好ましい。In addition, the styrofoam blocks are connected at the top, bottom, front, back, left and right with connecting metal fittings called dowels, and the surface layer is covered with a corrosion-resistant net and fixed to the roof of the rock shade, and a protective layer such as lightweight concrete or mortar is applied over the net. Furthermore, if the slope of the roof is large, it is preferable to bundle the Styrofoam blocks with wire and fix them to the roof before covering with a net.
［作用］
上記のように構成されたロックシェードの保護構造にお
いて、発泡スチロールブロックは衝撃緩和性に優れ、落
石等の衝撃を充分に緩和してロックシェードの破損や倒
壊を防止する。[Function] In the rock shade protection structure configured as described above, the foamed polystyrene block has excellent impact mitigation properties, sufficiently mitigating the impact of falling rocks, etc., and preventing damage or collapse of the rock shade.
また、ジベル、ワイヤ及びネットは、発泡スチロールボ
ードを一体化して屋根部に保持し、軽量コンクリート又
はモルタルは、発泡スチロールブロックの表層を保護す
る。Also, dowels, wires and nets hold the Styrofoam boards together on the roof, and lightweight concrete or mortar protects the surface layer of the Styrofoam blocks.
［実施例コ 以下図面を参照して本発明の詳細な説明する。[Example code] The present invention will be described in detail below with reference to the drawings.
第１図において、道路Ａを覆うように法面Ｂにかけて設
けられた全体を符号１で示すロックシェードの傾斜した
屋根部２の上面には、合成樹脂発泡体である板状の発泡
スチロールブロック３が、複層（図示の例では７層）に
積み重ねられている。In FIG. 1, a plate-shaped Styrofoam block 3 made of synthetic resin foam is mounted on the upper surface of a sloped roof portion 2 of a rock shade, the entirety of which is designated by the reference numeral 1, and is provided over a slope B so as to cover a road A. , are stacked in multiple layers (7 layers in the illustrated example).
そして、それらブロック３．３・◆・上には、耐腐食性
のネット４が布設され、そのネット４上には、軽量コン
クリート又はモルタル５が打設されている。A corrosion-resistant net 4 is laid over the blocks 3.3, ◆, and lightweight concrete or mortar 5 is placed on the net 4.
これらのブロック３．３・・・は、相互に上下前後左右
が第２図に示すような、表裏面に複数の爪６ａを突設し
た連結金具いわゆるジベル６で連結されており、更に、
第３図に示すワイヤ７．７・・・により束ねられ、ワイ
ヤ７．７・・・はジベル６及びネット４と協働してブロ
ック３．３・・・を一体化して屋根部２に固定している
。なお、屋根部２の傾斜が緩い場合は、ワイヤ７．７・
・・を省くことができる。These blocks 3, 3... are connected to each other by a so-called dowel 6, which is a connecting fitting having a plurality of claws 6a protruding from the front and back surfaces, as shown in FIG. 2, as shown in FIG.
The wires 7.7... shown in FIG. are doing. In addition, if the slope of the roof part 2 is gentle, the wire 7.7.
... can be omitted.
上記発泡スチロールブロック３は、最近、軟弱地盤の盛
土工事等に多用されている材料で、衝撃緩和性が大きく
、積み重ねた場合の自立性に優れ、耐水性、施工性が非
常に良い。The above-mentioned foamed polystyrene block 3 is a material that has recently been frequently used in embankment construction on soft ground, etc., and has great shock-reducing properties, excellent self-supporting properties when stacked, and excellent water resistance and workability.
したがって、屋根部２の上に積み重ねられた発泡スチロ
ールブロック３．３・・・により、落石等の衝撃が充分
に緩和され、ロックシェード１の部分的な破損や倒壊が
防止される。Therefore, the foamed polystyrene blocks 3, 3, .
また、ジベル６、ワイヤ７及びネット４により発泡スチ
ロールブロック３．３・・・同士バ一体化されて屋根部
２に保持され、軽量コンクリート又はモルタル５により
表層が保護される。Further, the foamed polystyrene blocks 3, 3 are held together by the dowel 6, wire 7, and net 4 and held on the roof 2, and the surface layer is protected by lightweight concrete or mortar 5.
［発明の効果コ
本発明は、以上説明したように構成されているので、発
泡スチロールブロックにより落石等の衝撃を充分に緩和
し、その結果、ロックシェードの破損や倒壊を防止する
ことができる。[Effects of the Invention] Since the present invention is configured as described above, the impact of falling rocks etc. can be sufficiently alleviated by the foamed polystyrene block, and as a result, damage and collapse of the rock shade can be prevented.
また、発泡スチロールブロックは、軽量性、自立性、耐
水性、施工性に優れ、既設のロックシェード自体の構造
を特に補強することなしに、本発明を実施することがで
き、非常に有効である。In addition, the foamed polystyrene block has excellent lightness, self-reliance, water resistance, and workability, and the present invention can be carried out without particularly reinforcing the structure of the existing rock shade itself, making it very effective.
第１図は本発明の一実施例を示す垂直断面図、第２図は
ジベルを示す斜視図、第３図は発泡スチロールブロック
のワイヤによる一体化構造を示す平面図である。
１・・・ロックシェード ２・・−屋根部３・・・発
泡スチロールブロック
第２図
６
第３
図FIG. 1 is a vertical sectional view showing an embodiment of the present invention, FIG. 2 is a perspective view showing a dowel, and FIG. 3 is a plan view showing an integrated structure of a styrofoam block using wires. 1... Lock shade 2... - Roof section 3... Styrofoam block Fig. 2 6 Fig. 3
Claims (1)
に合成樹脂発泡体を積み重ねたことを特徴とするロック
シェードの保護構造。A protective structure for a rock shade characterized by stacking synthetic resin foam on the roof of the rock shade to prevent damage from falling rocks, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1214830A JPH0649964B2 (en) | 1989-08-23 | 1989-08-23 | Lock shade protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1214830A JPH0649964B2 (en) | 1989-08-23 | 1989-08-23 | Lock shade protection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0381405A true JPH0381405A (en) | 1991-04-05 |
| JPH0649964B2 JPH0649964B2 (en) | 1994-06-29 |
Family
ID=16662247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1214830A Expired - Fee Related JPH0649964B2 (en) | 1989-08-23 | 1989-08-23 | Lock shade protection structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0649964B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03156005A (en) * | 1989-11-10 | 1991-07-04 | Nippon Samikon Kk | Shed for protection |
| JPH0389719U (en) * | 1989-12-27 | 1991-09-12 | ||
| JPH05321285A (en) * | 1992-05-25 | 1993-12-07 | Tech Res & Dev Inst Of Japan Def Agency | Method for reducing external force applied to buried structure |
| EP1956145A1 (en) * | 2007-02-09 | 2008-08-13 | Geobrugg AG | Barrier for rock fall or avalanche protection |
| CN113216024A (en) * | 2021-05-08 | 2021-08-06 | 四川省交通勘察设计研究院有限公司 | Assembled steel case canopy hole of hierarchical protection |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4501162B2 (en) * | 2008-10-29 | 2010-07-14 | 日本サミコン株式会社 | Rock fall protection structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60154412U (en) * | 1984-03-26 | 1985-10-15 | シバタ工業株式会社 | Traffic road protection equipment |
| JPS63300114A (en) * | 1987-05-30 | 1988-12-07 | Fudo Constr Co Ltd | Soil covering work using light-weight material |
| JPS6424981U (en) * | 1987-08-04 | 1989-02-10 | ||
| JPS6443606A (en) * | 1987-08-07 | 1989-02-15 | Sanwa Kosan Kk | Cushion material for fall rock preventing fence |
| JPS6466316A (en) * | 1987-09-07 | 1989-03-13 | Shimizu Construction Co Ltd | Light-weight banking structure and its construction |
| JPH0280703A (en) * | 1988-09-15 | 1990-03-20 | Yoshizawa Sogo Bosui:Kk | Load-relieving structure for snowshed and rockshed |
-
1989
- 1989-08-23 JP JP1214830A patent/JPH0649964B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60154412U (en) * | 1984-03-26 | 1985-10-15 | シバタ工業株式会社 | Traffic road protection equipment |
| JPS63300114A (en) * | 1987-05-30 | 1988-12-07 | Fudo Constr Co Ltd | Soil covering work using light-weight material |
| JPS6424981U (en) * | 1987-08-04 | 1989-02-10 | ||
| JPS6443606A (en) * | 1987-08-07 | 1989-02-15 | Sanwa Kosan Kk | Cushion material for fall rock preventing fence |
| JPS6466316A (en) * | 1987-09-07 | 1989-03-13 | Shimizu Construction Co Ltd | Light-weight banking structure and its construction |
| JPH0280703A (en) * | 1988-09-15 | 1990-03-20 | Yoshizawa Sogo Bosui:Kk | Load-relieving structure for snowshed and rockshed |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03156005A (en) * | 1989-11-10 | 1991-07-04 | Nippon Samikon Kk | Shed for protection |
| JPH0389719U (en) * | 1989-12-27 | 1991-09-12 | ||
| JPH05321285A (en) * | 1992-05-25 | 1993-12-07 | Tech Res & Dev Inst Of Japan Def Agency | Method for reducing external force applied to buried structure |
| EP1956145A1 (en) * | 2007-02-09 | 2008-08-13 | Geobrugg AG | Barrier for rock fall or avalanche protection |
| CN113216024A (en) * | 2021-05-08 | 2021-08-06 | 四川省交通勘察设计研究院有限公司 | Assembled steel case canopy hole of hierarchical protection |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0649964B2 (en) | 1994-06-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |