JP3432202B2 - Reinforcement members for rock fall protection fence, rock fall protection fence, and method of reinforcing rock fall protection fence - Google Patents
Reinforcement members for rock fall protection fence, rock fall protection fence, and method of reinforcing rock fall protection fenceInfo
- Publication number
- JP3432202B2 JP3432202B2 JP2000236822A JP2000236822A JP3432202B2 JP 3432202 B2 JP3432202 B2 JP 3432202B2 JP 2000236822 A JP2000236822 A JP 2000236822A JP 2000236822 A JP2000236822 A JP 2000236822A JP 3432202 B2 JP3432202 B2 JP 3432202B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- protection fence
- retaining wall
- rockfall protection
- reinforcing member
- 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.)
- Expired - Lifetime
Links
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、落石防護柵の補強
部材、落石防護柵および落石防護柵の補強方法に関す
る。TECHNICAL FIELD The present invention relates to a reinforcing member for a rockfall protection fence, a rockfall protection fence, and a method for reinforcing a rockfall protection fence.
【０００２】[0002]
【従来の技術】図６は従来の落石防護柵101 の概略斜視
図である。同図において、符号Ｗはコンクリート製の擁
壁である。この擁壁Ｗの上面には、複数本の垂直な支柱
１がその基部を固定されている。支柱１は、擁壁Ｗの上
面に、その長手方向に沿って間隔をもって配設されてい
る。各支柱１として、Ｈ型鋼がよく使用されている。複
数の支柱１には、複数の水平な索２が複数段に取り付け
られている。そして、支柱１および索２にガードネット
３が取り付けられている。かかる構成の落石防護柵101
によって、落石が道路Ｒにまで落ちるのを防止してい
る。2. Description of the Related Art FIG. 6 is a schematic perspective view of a conventional rockfall protection fence 101. In the figure, the symbol W is a concrete retaining wall. On the upper surface of the retaining wall W, a plurality of vertical columns 1 are fixed at their bases. The columns 1 are arranged on the upper surface of the retaining wall W at intervals along the longitudinal direction thereof. H-shaped steel is often used as each of the columns 1. A plurality of horizontal ropes 2 are attached to the plurality of columns 1 in a plurality of stages. A guard net 3 is attached to the support 1 and the rope 2. Rockfall protection fence 101 with such a configuration
This prevents falling rocks from reaching the road R.
【０００３】[0003]
【発明が解決しようとする課題】しかるに、従来の落石
防護柵101 は、索２およびガードネット３によって落石
等を受け止め、索２およびガードネット３が落石から受
けた力を支柱１が支持する構造であるので、落石防護柵
101 の強度を高くするには、支柱１の強度を高くする必
要がある。しかし、既に擁壁Ｗ上に立設されている支柱
１の強度を高くするには、落石防護柵101 や擁壁Ｗを一
度壊して、新しい擁壁を構築し、強度の高い新しい支柱
を設置しなければならないので、大変な手間と費用が必
要であるという問題がある。In the conventional rockfall protection fence 101, however, the rope 2 and the guard net 3 receive rockfall and the like, and the strut 1 supports the force received by the rope 2 and the guard net 3 from the rockfall. So the rockfall protection fence
In order to increase the strength of 101, it is necessary to increase the strength of the column 1. However, in order to increase the strength of the pillar 1 that has already been erected on the retaining wall W, the rockfall protection fence 101 and the retaining wall W are destroyed once to build a new retaining wall, and a new strong pillar is installed. However, there is a problem that it requires a great deal of trouble and cost because it has to be done.
【０００４】本発明はかかる事情に鑑み、既に擁壁上に
立設されている支柱を、安価に簡単に補強することがで
きる落石防護柵の補強部材、落石防護柵および落石防護
柵の補強方法を提供することを目的とする。In view of the above circumstances, the present invention provides a reinforcing member for a rockfall protection fence, a rockfall protection fence, and a method for reinforcing a rockfall protection fence that can easily and inexpensively reinforce a pillar that has already been erected on a retaining wall. The purpose is to provide.
【０００５】[0005]
【課題を解決するための手段】請求項１の落石防護柵の
補強部材は、擁壁の上面に立てて固定された支柱、索お
よびガードネットからなる防護柵の補強部材であって、
前記支柱に立てて被せる円筒状のパイプと、該パイプの
中空部分に注入される固定剤とからなることを特徴とす
る。請求項２の落石防護柵の補強部材は、請求項１記載
の発明において、前記固定剤が、モルタルであることを
特徴とする。請求項３の落石防護柵の補強部材は、請求
項１または２記載の発明において、前記パイプの下端
に、該パイプを前記擁壁に取り付けるパイプ取付金具が
設けられたことを特徴とする。請求項４の落石防護柵の
補強部材は、請求項１、２または３記載の発明におい
て、前記擁壁の近傍の地面に立設した補助支柱と、該補
助支柱と、前記パイプの下端部とを連結する連結具とか
らなることを特徴とする。請求項５の落石防護柵は、擁
壁の上面に立てて固定された複数の支柱に取り付けら
れ、該支柱を補強する複数の請求項１、２または３記載
の落石防護柵の補強部材と、隣接する該補強部材のパイ
プ間に、水平に張られた複数の索と、該複数の索に取り
付けられたガードネットとからなることを特徴とする。
請求項６の落石防護柵の補強方法は、擁壁の上面に支柱
が立てて固定され、該支柱に索およびガードネットが取
り付けられた落石防護柵の補強方法であって、前記支柱
から前記索およびガードネットを取り外し、前記支柱に
円筒形状のパイプを被せ、該パイプの中空部分に固定剤
を注入して固化し、前記パイプに新しい索およびガード
ネットを取り付けることを特徴とする。A reinforcing member for a rockfall guard fence according to claim 1 is a reinforcing member for a guard fence, which comprises a pillar, a rope and a guard net which are vertically fixed to the upper surface of a retaining wall.
It is characterized in that it is composed of a cylindrical pipe which is erected on the support column and a fixing agent which is injected into the hollow portion of the pipe. According to a second aspect of the present invention, in the reinforcing member of the rockfall protection fence according to the first aspect, the fixing agent is mortar. According to a third aspect of the present invention, there is provided a reinforcing member for a rockfall protection fence according to the first or second aspect, wherein a pipe fitting for attaching the pipe to the retaining wall is provided at a lower end of the pipe. The reinforcing member of the rockfall protection fence according to claim 4 is the invention according to claim 1, 2 or 3, wherein an auxiliary column that is erected on the ground near the retaining wall, the auxiliary column, and the lower end portion of the pipe are provided. It is characterized by comprising a connecting tool for connecting. The rockfall protection fence according to claim 5 is attached to a plurality of pillars that are erected and fixed on the upper surface of the retaining wall, and a plurality of reinforcing members for the rockfall protection fence according to claim 1, 2 or 3 for reinforcing the pillars. It is characterized by comprising a plurality of horizontally stretched ropes and a guard net attached to the plurality of ropes between adjacent pipes of the reinforcing member.
The method for reinforcing a rockfall protection fence according to claim 6 is a method for reinforcing a rockfall protection fence, in which a pillar is erected and fixed on an upper surface of a retaining wall, and a rope and a guard net are attached to the pillar. And removing the guard net, covering the pillar with a cylindrical pipe, injecting a fixing agent into the hollow portion of the pipe to solidify it, and attaching a new rope and guard net to the pipe.
【０００６】請求項１の発明によれば、固定剤によって
支柱とパイプとを一体に固定できるので、既に擁壁上に
立設されている支柱の強度を高めることができる。つま
り、支柱に加わる荷重によって発生する曲げ応力のう
ち、引張応力は支柱とパイプで支持し、圧縮応力はモル
タルが支持するので、支柱の曲げに対する強度を高める
ことができる。また、支柱を擁壁に取り付けたままパイ
プの施工を行えるので、擁壁を壊す手間もかからず費用
も安くなる。請求項２の発明によれば、固定剤がモルタ
ルであるので、材料費が安くなる。請求項３の発明によ
れば、パイプ取付金具によってパイプの下端を擁壁に頑
強に取り付けることができるから、支柱の強度をより高
めることができる。請求項４の発明によれば、補助支柱
によって、パイプの下端部に加わる力を連結具を介して
支持することができるので、支柱の強度をより高めるこ
とができる。請求項５の発明によれば、補強部材によっ
て支柱が補強されて、支柱の強度が高くなっており、索
およびガードネットによって支持することができる荷重
が大きくなるので、大きな落石にも耐えることができ
る。請求項６の発明によれば、支柱にパイプを被せ、パ
イプの中空部分に固定剤を注入し固化させるだけで、既
に擁壁上に立設されている支柱の強度を高めることがで
きる。また、支柱を擁壁に取り付けたままパイプの施工
行えるので、擁壁を壊す手間もかからず費用も安くな
る。According to the first aspect of the present invention, since the support and the pipe can be integrally fixed by the fixative, the strength of the support already erected on the retaining wall can be increased. That is, of the bending stresses generated by the load applied to the support columns, the tensile stress is supported by the support columns and the pipe, and the compressive stress is supported by the mortar, so that the strength of the support columns against bending can be increased. Further, since the pipe can be constructed with the support columns attached to the retaining wall, it does not take time to break the retaining wall and the cost is reduced. According to the invention of claim 2, since the fixative is mortar, the material cost is low. According to the invention of claim 3, since the lower end of the pipe can be firmly attached to the retaining wall by the pipe attachment fitting, the strength of the column can be further increased. According to the invention of claim 4, since the force applied to the lower end portion of the pipe can be supported by the auxiliary strut through the connector, the strength of the strut can be further increased. According to the fifth aspect of the present invention, the support column is reinforced by the reinforcing member, the strength of the support column is increased, and the load that can be supported by the rope and the guard net is increased. Therefore, it is possible to withstand a large rock fall. it can. According to the invention of claim 6, the strength of the pillar already erected on the retaining wall can be increased only by covering the pillar with the pipe and injecting the fixing agent into the hollow portion of the pipe to solidify. Further, since the pipe can be constructed with the support columns attached to the retaining wall, it does not take time to break the retaining wall and the cost is reduced.
【０００７】[0007]
【発明の実施の形態】つぎに、本発明の実施形態を図面
に基づき説明する。図１は本実施形態の落石防護柵２０
の概略斜視図である。図２は本実施形態の落石防護柵２
０の側面図である。図１および図２に示すように、本実
施形態の落石防護柵２０は、支柱１、索２、ガードネッ
ト３、索取付部材４および補強部材１０から構成されて
いる。図１および図２において、符号Ｗは擁壁を示して
おり、この擁壁Ｗの上面には、複数の支柱１が立てて固
定されている。この支柱１は、図６に示す従来から用い
られている支柱であって、後述する補強部材１０によっ
て、補強されるものである。符号２および符号３は、そ
れぞれ索およびガードネットを示している。索２は、例
えばワイヤーロープであり、後述する複数の補強部材１
０のパイプ１１間に、水平に複数段張られており、この
符号２は、索取付具４によって、パイプ１１に取り付け
られている。この索２には、ガードネット３が取り付け
られている。BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a rockfall protection fence 20 of this embodiment.
2 is a schematic perspective view of FIG. FIG. 2 is a rockfall protection fence 2 of this embodiment.
It is a side view of 0. As shown in FIGS. 1 and 2, the rockfall protection fence 20 of the present embodiment is composed of columns 1, ropes 2, guard nets 3, rope attachment members 4 and reinforcing members 10. 1 and 2, the symbol W indicates a retaining wall, and on the upper surface of the retaining wall W, a plurality of columns 1 are vertically fixed. The pillar 1 is a conventionally used pillar shown in FIG. 6, and is reinforced by a reinforcing member 10 described later. Reference numerals 2 and 3 indicate a rope and a guard net, respectively. The rope 2 is, for example, a wire rope, and includes a plurality of reinforcing members 1 described later.
A plurality of horizontal pipes are stretched between 0 pipes 11, and the reference numeral 2 is attached to the pipes 11 by a rope attachment 4. A guard net 3 is attached to the rope 2.
【０００８】つぎに、補強部材１０を説明する。補助部
材１０は、パイプ１１、パイプ固定金具１２、キャップ
１５および固体モルタル１３から基本構成されている。Next, the reinforcing member 10 will be described. The auxiliary member 10 is basically composed of a pipe 11, a pipe fixing fitting 12, a cap 15 and a solid mortar 13.
【０００９】パイプ１１は、円筒状のパイプであり、そ
の素材は、鉄や鋼等である。The pipe 11 is a cylindrical pipe, and its material is iron or steel.
【００１０】このパイプ１１の下端には、パイプ固定金
具１２が固定されている。このパイプ固定金具１２は、
上板12a と側板12b とから構成されている。上板12a は
板状の部材であり、その上面が前記パイプ１１の下端に
固定されている。この上板12a には、パイプ１１の中心
軸を中心とし、パイプ１１の内径と同径の図示しない貫
通孔が形成されている。また、上板12a の一端には、側
板12b が設けられている。この側板12b は、上板12a に
対して下方に屈曲している。よって、パイプ固定金具１
２は、上板12aと側板12b とで側面視逆Ｌ字状になって
いる。A pipe fixing member 12 is fixed to the lower end of the pipe 11. This pipe fixing bracket 12
It is composed of an upper plate 12a and a side plate 12b. The upper plate 12a is a plate-shaped member, and its upper surface is fixed to the lower end of the pipe 11. A through hole (not shown) having the same diameter as the inner diameter of the pipe 11 is formed in the upper plate 12a with the central axis of the pipe 11 as the center. A side plate 12b is provided at one end of the upper plate 12a. The side plate 12b is bent downward with respect to the upper plate 12a. Therefore, pipe fitting 1
The upper plate 12a and the side plate 12b have an inverted L shape in a side view.
【００１１】このため、下端にパイプ固定金具１２が固
定されたパイプ１１を、支柱１の上方から上板12a の貫
通孔を通して、各支柱１に立てて被せ、上板12a の下面
および側板12b の前面を擁壁Ｗの上面および背面にそれ
ぞれ密着させて、例えば、ホールインアンカー等の固定
具によって上板12a および側板12b を擁壁Ｗに固定すれ
ば、パイプ１１を擁壁Ｗに固定することができる。For this reason, the pipe 11 having the pipe fixing metal fitting 12 fixed to the lower end is put upright from the upper side of the support column 1 through the through holes of the upper plate 12a to cover the respective support columns 1 and to cover the lower surface of the upper plate 12a and the side plate 12b. The pipe 11 is fixed to the retaining wall W by bringing the front surface into close contact with the upper surface and the rear surface of the retaining wall W, and fixing the upper plate 12a and the side plate 12b to the retaining wall W with a fixture such as a hole-in anchor. You can
【００１２】しかも、擁壁Ｗの背面から前面に向かう力
がパイプ１１に加わったときには、パイプ固定金具１２
の側板12b が擁壁Ｗの背面に引っ掛かっているので、パ
イプ１１が前方に倒れようとする力を側板12b によって
も支えることができる。Moreover, when a force from the rear surface of the retaining wall W to the front surface is applied to the pipe 11, the pipe fixing metal fitting 12
Since the side plate 12b of the pipe 11 is hooked on the back surface of the retaining wall W, the side plate 12b can also support the force of the pipe 11 tending to fall forward.
【００１３】なお、固定具はパイプ固定具１２を擁壁Ｗ
に固定することができれば、どのようなものを用いても
よい。As for the fixture, the pipe fixture 12 is used as the retaining wall W.
Any material may be used as long as it can be fixed to.
【００１４】前記擁壁Ｗに固定された前記パイプ１１の
中空部分は、固定剤である固体モルタル１３によって埋
められている。この固定モルタル１３は、液状モルタル
の状態でパイプ１１の中空部分に流し込まれて固化した
ものである。この固体モルタル１３によって、パイプ１
１と支柱１とが、一体に固定されている。固体モルタル
１３は圧縮強度が高いので、支柱１に加わる荷重によっ
て発生する曲げ応力のうち、圧縮応力は固体モルタル１
３が支持し、引張応力は支柱１とパイプ１１で支持する
ので、支柱１の曲げに対する強度を高めることができ
る。The hollow portion of the pipe 11 fixed to the retaining wall W is filled with a solid mortar 13 as a fixing agent. The fixed mortar 13 is poured into the hollow portion of the pipe 11 and solidified in a liquid mortar state. With this solid mortar 13, the pipe 1
1 and the support 1 are integrally fixed. Since the solid mortar 13 has high compressive strength, the compressive stress of the bending stress generated by the load applied to the support 1 is the solid mortar 1
3 supports and the tensile stress is supported by the pillar 1 and the pipe 11, so that the strength of the pillar 1 against bending can be increased.
【００１５】なお、固定剤は固体モルタル１３に限定さ
れず、パイプ１１の中空部分を埋めて、支柱１とパイプ
１１とを一体に固定できればよく、例えばコンクリート
やモルタル、ポリマーモルタル等の樹脂、カーボン等で
もよい。特に弾性の高い固定剤を用いた場合、落石の衝
撃荷重によって発生する曲げ応力が弾性限度よりも小さ
ければ、パイプ１１および固定剤は弾性変形する。する
と、落石を取り除けば、パイプ１１が元の形状に復帰
し、固定剤内にも内部応力が残存しないので、パイプ１
１の耐久性を高くすることができる。The fixing agent is not limited to the solid mortar 13 as long as it can fill the hollow portion of the pipe 11 and fix the support 1 and the pipe 11 together. For example, a resin such as concrete, mortar, polymer mortar, or carbon. And so on. Particularly when a fixative having high elasticity is used, the pipe 11 and the fixative are elastically deformed if the bending stress generated by the impact load of rock fall is smaller than the elastic limit. Then, if the rock fall is removed, the pipe 11 returns to its original shape, and no internal stress remains in the fixative.
The durability of No. 1 can be increased.
【００１６】符号１５は、パイプ１１の上端に取り付け
られたキャップであり、雨水やゴミがパイプ１１の中空
部分に入るのを防止するためのものである。このため、
雨水がモルタル２０に浸み込んで、支柱１やパイプ１１
が錆びることを防ぐことができる。Reference numeral 15 is a cap attached to the upper end of the pipe 11 for preventing rainwater and dust from entering the hollow portion of the pipe 11. For this reason,
Rainwater soaks into the mortar 20, and the struts 1 and pipes 11
Can be prevented from rusting.
【００１７】したがって、補強部材１０は、固体モルタ
ル１３によって支柱１とパイプ１１とを一体に固定する
ので、支柱１の強度を高めることができる。また、パイ
プ固定金具１２によって補強部材１０の下端を擁壁Ｗに
頑強に取り付けることができるから、支柱１の強度をよ
り高めることができる。Therefore, since the reinforcing member 10 integrally fixes the support 1 and the pipe 11 with the solid mortar 13, the strength of the support 1 can be increased. Further, since the lower end of the reinforcing member 10 can be firmly attached to the retaining wall W by the pipe fixing metal fitting 12, the strength of the support column 1 can be further increased.
【００１８】なお、図４に示すように、補強部材１０の
パイプとして、上端部が前方に屈曲しているパイプ11B
を使用してもよい。この場合、防護範囲が広がるという
効果を奏する。As shown in FIG. 4, the pipe of the reinforcing member 10 is a pipe 11B having an upper end bent forward.
May be used. In this case, there is an effect that the protection range is expanded.
【００１９】つぎに、本実施形態の補強部材２０の施工
作業を説明する。図３は落石防護柵２０の施工作業の説
明図である。まず、補強すべき落石防護柵の索およびガ
ードネットを取り外す。これにより、擁壁Ｗの上面に、
複数の支柱１のみを残しておく。Next, the construction work of the reinforcing member 20 of this embodiment will be described. FIG. 3 is an explanatory view of the construction work of the rockfall protection fence 20. First, remove the rope and guard net of the rockfall protection fence to be reinforced. Thereby, on the upper surface of the retaining wall W,
Only the columns 1 are left.
【００２０】つぎに、前記支柱１にパイプ１１を被せ
て、擁壁Ｗの上面および背面にパイプ固定金具１２の上
板12a の下面および側板12b の前面を密着させる。その
状態で、例えばホールインアンカー等の固定具Ｂによっ
て、パイプ取付金具１２を擁壁Ｗに取り付ける。Next, the pipe 11 is covered on the support column 1 so that the lower surface of the upper plate 12a and the front surface of the side plate 12b of the pipe fixing metal fitting 12 are brought into close contact with the upper surface and the rear surface of the retaining wall W. In this state, the pipe fitting 12 is attached to the retaining wall W by a fixture B such as a hole-in anchor.
【００２１】つぎに、パイプ１１の中空部分に液体モル
タル１４を流し込み、パイプ１１の上端にキャップ１５
を嵌合する。すると、キャップ１５により、パイプ１１
の上端から中空部分に雨水やゴミが入って、そのゴミ等
が液体モルタル１４に混入することを防止することがで
きる。Next, the liquid mortar 14 is poured into the hollow portion of the pipe 11, and the cap 15 is placed on the upper end of the pipe 11.
Mating. Then, with the cap 15, the pipe 11
It is possible to prevent rainwater and dust from entering the hollow portion from the upper end of the and to mix the dust and the like into the liquid mortar 14.
【００２２】液体モルタル１４が固化し、固体モルタル
１３となると、この固体モルタル１３によって支柱１と
パイプ１１とが一体に固定され、支柱１に補強部材１０
を取り付けられる。When the liquid mortar 14 is solidified to become the solid mortar 13, the support column 1 and the pipe 11 are integrally fixed by the solid mortar 13, and the support member 10 is fixed to the support column 1.
Can be attached.
【００２３】つぎに、複数の補強部材１０のパイプ１１
間に、索２水平に、複数段に張り、索取付具４によって
索２をパイプ１１に取り付ける。最後に、ガードネット
３を索２に取り付ければ、落石防護柵２０の施工が終了
する。Next, the pipes 11 of the plurality of reinforcing members 10
In the meantime, the rope 2 is stretched horizontally in a plurality of stages, and the rope 2 is attached to the pipe 11 by the rope attachment 4. Finally, if the guard net 3 is attached to the rope 2, the construction of the rockfall protection fence 20 is completed.
【００２４】上記のごとく、本実施形態の落石防護柵の
落石防護柵２０によれば、既に擁壁Ｗ上に立設されてい
る支柱１の強度を高めることができ、支柱１を擁壁Ｗに
取り付けたままで施工するから、安価に簡単に支柱１を
補強することができる。As described above, according to the rockfall protection fence 20 of the rockfall protection fence of the present embodiment, the strength of the pillar 1 already standing on the retaining wall W can be increased, and the pillar 1 is retained by the retaining wall W. Since the construction is carried out with the support attached, it is possible to easily and easily reinforce the column 1.
【００２５】また、補強部材１０によって支柱１が補強
されて、支柱１の強度が高くなっており、索２およびガ
ードネット３が支持することができる荷重が大きいの
で、大きな落石にも耐えることができる。Further, since the support column 1 is reinforced by the reinforcing member 10 so that the support column 1 has high strength and the load that can be supported by the rope 2 and the guard net 3 is large, it is possible to endure a large rock fall. it can.
【００２６】なお、隣接するパイプ１１の上端間に、例
えば鉄製の棒材を水平に配設し、この棒材によって隣接
するパイプ１１の上端同士を連結してもよい。この場
合、１本のパイプ１１に加わる力を、他のパイプ１１に
分散して支持させることができるので、落下防護柵の支
持することができる荷重を、さらに大きくすることがで
きる。Note that, for example, iron rods may be horizontally arranged between the upper ends of the adjacent pipes 11 and the upper ends of the adjacent pipes 11 may be connected by this rod. In this case, since the force applied to one pipe 11 can be dispersed and supported by the other pipes 11, the load that can be supported by the fall protection fence can be further increased.
【００２７】さらになお、支柱１の強度をさらに高くす
るときには、図５に示すように、擁壁Ｗの背後の地面に
補助支柱３１を立設して、この補助支柱３１と補強部材
１０のパイプ１１の下端を連結具３２によって連結して
もよい。この場合、補助支柱３１によって、パイプ１１
の下端部に加わる力を、連結具３２を介して支持するこ
とができるから、支柱１の強度をより高くすることがで
きる。Furthermore, when the strength of the support column 1 is further increased, as shown in FIG. 5, an auxiliary support column 31 is erected on the ground behind the retaining wall W and the pipe of the auxiliary support column 31 and the reinforcing member 10 is erected. The lower end of 11 may be connected by the connecting tool 32. In this case, the pipe 11 is
Since the force applied to the lower end of the column can be supported via the coupling tool 32, the strength of the support column 1 can be further increased.
【００２８】[0028]
【発明の効果】請求項１の発明によれば、固定剤によっ
て支柱とパイプとを一体に固定できるので、既に擁壁上
に立設されている支柱の強度を高めることができる。つ
まり、支柱に加わる荷重によって発生する曲げ応力のう
ち、引張応力は支柱とパイプで支持し、圧縮応力はモル
タルが支持するので、支柱の曲げに対する強度を高める
ことができる。また、支柱を擁壁に取り付けたままパイ
プの施工を行えるので、擁壁を壊す手間もかからず費用
も安くなる。請求項２の発明によれば、固定剤がモルタ
ルであるので、材料費が安くなる。請求項３の発明によ
れば、パイプ取付金具によってパイプの下端を擁壁に頑
強に取り付けることができるから、支柱の強度をより高
めることができる。請求項４の発明によれば、補助支柱
によって、パイプの下端部に加わる力を連結具を介して
支持することができるので、支柱の強度をより高めるこ
とができる。請求項５の発明によれば、補強部材によっ
て支柱が補強されて、支柱の強度が高くなっており、索
およびガードネットによって支持することができる荷重
が大きくなるので、大きな落石にも耐えることができ
る。請求項６の発明によれば、支柱にパイプを被せ、パ
イプの中空部分に固定剤を注入し固化させるだけで、既
に擁壁上に立設されている支柱の強度を高めることがで
きる。また、支柱を擁壁に取り付けたままパイプの施工
行えるので、擁壁を壊す手間もかからず費用も安くな
る。According to the first aspect of the present invention, since the support and the pipe can be integrally fixed by the fixing agent, the strength of the support already erected on the retaining wall can be increased. That is, of the bending stresses generated by the load applied to the support columns, the tensile stress is supported by the support columns and the pipe, and the compressive stress is supported by the mortar, so that the strength of the support columns against bending can be increased. Further, since the pipe can be constructed with the support columns attached to the retaining wall, it does not take time to break the retaining wall and the cost is reduced. According to the invention of claim 2, since the fixative is mortar, the material cost is low. According to the invention of claim 3, since the lower end of the pipe can be firmly attached to the retaining wall by the pipe attachment fitting, the strength of the column can be further increased. According to the invention of claim 4, since the force applied to the lower end portion of the pipe can be supported by the auxiliary strut through the connector, the strength of the strut can be further increased. According to the fifth aspect of the present invention, the support column is reinforced by the reinforcing member, the strength of the support column is increased, and the load that can be supported by the rope and the guard net is increased. Therefore, it is possible to withstand a large rock fall. it can. According to the invention of claim 6, the strength of the pillar already erected on the retaining wall can be increased only by covering the pillar with the pipe and injecting the fixing agent into the hollow portion of the pipe to solidify. Further, since the pipe can be constructed with the support columns attached to the retaining wall, it does not take time to break the retaining wall and the cost is reduced.
【図１】本実施形態の落石防護柵２０の概略斜視図であ
る。FIG. 1 is a schematic perspective view of a rockfall protection fence 20 of the present embodiment.
【図２】本実施形態の落石防護柵２０の側面図である。FIG. 2 is a side view of a rockfall protection fence 20 of the present embodiment.
【図３】落石防護柵２０の施工作業の説明図である。FIG. 3 is an explanatory diagram of a construction work of a rockfall protection fence 20.
【図４】他の補強部材１０の側面図である。FIG. 4 is a side view of another reinforcing member 10.
【図５】補助支柱３１を設けた落下防護柵２０の側面図
である。FIG. 5 is a side view of the fall protection fence 20 provided with auxiliary columns 31.
【図６】従来の落石防護柵２０の概略斜視図である。FIG. 6 is a schematic perspective view of a conventional rockfall protection fence 20.
１ 支柱 ２ 索 ３ ガードネット １１ パイプ １２ パイプ取付金具 １３ モルタル ３１ 補助支柱 ３２ 連結具 1 prop Two lines 3 guard net 11 pipes 12 Pipe mounting bracket 13 Mortar 31 Auxiliary support 32 connector
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E01F 7/00 - 7/06 E01F 15/00 - 15/14 ─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. 7 , DB name) E01F 7 /00-7/06 E01F 15/00-15/14
Claims (6)
よびガードネットからなる防護柵の補強部材であって、
前記支柱に立てて被せる円筒状のパイプと、該パイプの
中空部分に注入される固定剤とからなることを特徴とす
る落石防護柵の補強部材。1. A reinforcing member for a protective fence, which comprises columns, ropes, and a guard net, which are vertically fixed to the upper surface of a retaining wall,
A reinforcing member for a rockfall protection fence, which comprises a cylindrical pipe which is erected on the support column and a fixing agent which is injected into a hollow portion of the pipe.
とする請求項１記載の落石防護柵の補強部材。2. The reinforcing member for a rockfall protection fence according to claim 1, wherein the fixative is mortar.
に取り付けるパイプ取付金具が設けられたことを特徴と
する請求項１または２記載の落石防護柵の補強部材。3. The reinforcing member for a rockfall protection fence according to claim 1, wherein a pipe attachment fitting for attaching the pipe to the retaining wall is provided at a lower end of the pipe.
と、該補助支柱と、前記パイプの下端部とを連結する連
結具とからなることを特徴とする請求項１、２または３
記載の落石防護柵の補強部材。4. An auxiliary strut that is erected on the ground near the retaining wall, and a connector that connects the auxiliary strut and the lower end of the pipe. Three
Reinforcement member for the listed rockfall protection fence.
に取り付けられ、該支柱を補強する複数の請求項１、２
または３記載の落石防護柵の補強部材と、該複数の補強
部材のパイプ間に、水平に張られた複数の索と、該複数
の索に取り付けられたガードネットとからなることを特
徴とする落石防護柵。5. A plurality of pillars, which are attached to a plurality of columns fixed upright on the upper surface of the retaining wall to reinforce the columns.
Or a reinforcing member of the rockfall protection fence described in 3, a plurality of horizontally extending ropes between the plurality of reinforcing member pipes, and a guard net attached to the plurality of ropes. Rockfall protection fence.
柱に索およびガードネットが取り付けられた落石防護柵
の補強方法であって、前記支柱から前記索およびガード
ネットを取り外し、前記支柱に円筒形状のパイプを被
せ、該パイプの中空部分に固定剤を注入して固化し、前
記パイプに新しい索およびガードネットを取り付けるこ
とを特徴とする落石防護柵の補強方法。6. A method of reinforcing a rockfall protection fence in which a pillar is erected and fixed on the upper surface of a retaining wall, and a rope and a guard net are attached to the pillar, wherein the rope and the guard net are removed from the pillar, A method of reinforcing a rockfall protection fence, comprising: covering a pillar with a cylindrical pipe; injecting a fixing agent into the hollow portion of the pipe to solidify the pipe; and attaching a new rope and a guard net to the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000236822A JP3432202B2 (en) | 2000-08-04 | 2000-08-04 | Reinforcement members for rock fall protection fence, rock fall protection fence, and method of reinforcing rock fall protection fence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000236822A JP3432202B2 (en) | 2000-08-04 | 2000-08-04 | Reinforcement members for rock fall protection fence, rock fall protection fence, and method of reinforcing rock fall protection fence |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002047617A JP2002047617A (en) | 2002-02-15 |
| JP3432202B2 true JP3432202B2 (en) | 2003-08-04 |
Family
ID=18728806
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000236822A Expired - Lifetime JP3432202B2 (en) | 2000-08-04 | 2000-08-04 | Reinforcement members for rock fall protection fence, rock fall protection fence, and method of reinforcing rock fall protection fence |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100839344B1 (en) * | 2008-02-20 | 2008-06-17 | 장인봉 | Boundary fence |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4568766B2 (en) * | 2004-07-21 | 2010-10-27 | 東京製綱株式会社 | Rock fall prevention fence |
| JP4599459B1 (en) * | 2009-11-26 | 2010-12-15 | 株式会社プロテックエンジニアリング | Protective body and modification method of existing protective body |
| JP5717551B2 (en) * | 2011-06-14 | 2015-05-13 | 株式会社ライテク | Guard fence and its construction method |
| KR101418999B1 (en) * | 2012-05-24 | 2014-07-15 | (주)우경케이피이 | Column structure for debris flow prevention, Safety fences and Construction Method thereof |
| KR101419000B1 (en) * | 2012-05-24 | 2014-07-15 | (주)우경케이피이 | Column structure for debris flow prevention, Safety fences and Construction Method thereof |
| KR101418998B1 (en) * | 2012-05-24 | 2014-07-15 | (주)우경케이피이 | Column structure for debris flow prevention, Safety fences and Construction Method thereof |
| JP5758512B2 (en) * | 2014-01-29 | 2015-08-05 | 株式会社総合開発 | Method for reinforcing rock fall protection fence and rock fall protection fence |
| JP7345950B1 (en) | 2023-06-28 | 2023-09-19 | 有限会社吉田構造デザイン | Protective fence and its reinforcement method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3032130U (en) | 1996-06-07 | 1996-12-17 | 株式会社エルファス | Guardrail |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3188328B2 (en) * | 1992-10-21 | 2001-07-16 | ケイコン株式会社 | Structure of concrete precast guard fence |
| JP2660183B2 (en) * | 1995-05-18 | 1997-10-08 | 阪神高速道路公団 | How to repair protective fence structures such as roads |
| JP2783384B2 (en) * | 1995-11-27 | 1998-08-06 | 岡田産業株式会社 | H type support cover |
| JP3017682B2 (en) * | 1996-07-04 | 2000-03-13 | 東京製綱株式会社 | How to make support fences of protective fence |
-
2000
- 2000-08-04 JP JP2000236822A patent/JP3432202B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3032130U (en) | 1996-06-07 | 1996-12-17 | 株式会社エルファス | Guardrail |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100839344B1 (en) * | 2008-02-20 | 2008-06-17 | 장인봉 | Boundary fence |
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|---|---|
| JP2002047617A (en) | 2002-02-15 |
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