JP7199261B2 - Rockfall protection device and connector - Google Patents

Rockfall protection device and connector Download PDF

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JP7199261B2
JP7199261B2 JP2019046097A JP2019046097A JP7199261B2 JP 7199261 B2 JP7199261 B2 JP 7199261B2 JP 2019046097 A JP2019046097 A JP 2019046097A JP 2019046097 A JP2019046097 A JP 2019046097A JP 7199261 B2 JP7199261 B2 JP 7199261B2
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protection device
connector
guide
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JP2020147990A (en
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裕介 野崎
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JFE Metal Products and Engineering Inc
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/23—Dune restoration or creation; Cliff stabilisation

Description

本発明は、落石防護装置及び連結具に関する。 The present invention relates to a falling rock protection device and a connector.

道路脇や山腹地盤等に設置され、路上への落石を防止する落石対策工が知られている。落石対策工としては、落石予防工と落石防護工とがある。一般的には、位置エネルギーが大きい石がある傾斜面においては落石予防工が用いられ、位置エネルギーが小さい石がある傾斜面においては落石防護工が用いられる。 There is known a rockfall countermeasure work that is installed on the side of a road or on the ground of a hillside to prevent rocks from falling onto the road. Rockfall countermeasure works include rockfall prevention work and rockfall protection work. In general, rockfall prevention works are used on slopes with stones with high potential energy, and rockfall protection works are used on slopes with stones with low potential energy.

例えば、落石の発生源を予め覆うように被せる覆式の落石防護網がある。また、落石の発生源が保全対象物から離れている場合には、傾斜面に立設した支柱部分を落石の導入口とするポケット式の落石防護網がある。落石防護網の場合には、落石の自重をネットにより支える必要があり、ネットを支えるロープやアンカには高強度な部材を用いる（例えば、特許文献１参照）。 For example, there is a covered rockfall protection net that covers the source of falling rocks in advance. In addition, when the source of falling rocks is far from the object to be protected, there is a pocket-type rockfall protection net that uses the pillars erected on the slope as entrances for falling rocks. In the case of a rockfall protection net, the weight of falling rocks must be supported by the net, and high-strength members are used for the ropes and anchors that support the net (see, for example, Patent Document 1).

特許第６４４０８８６号公報Japanese Patent No. 6440886

ところで、石は、傾斜面においては一部が地表に露出しているだけであり、実際には想定外の質量を有している場合がある。このような石に対して落石対策工を施した場合であっても、巨大な石の落下を防ぐことが困難な場合が想定される。また、傾斜面の高い位置にある位置エネルギーが大きい石に対して落石対策工を設置する場合、強度の高い部材を用いる必要があり、対策コストが大きくなることがある。 By the way, a stone is only partly exposed on the surface of the ground on an inclined surface, and may actually have an unexpected mass. Even if such rock fall countermeasures are taken, it may be difficult to prevent huge stones from falling. In addition, when installing rockfall countermeasures against stones with high potential energy located at high positions on the slope, it is necessary to use members with high strength, which may increase countermeasure costs.

そこで、本発明は、上記課題に鑑みてなされたものであり、石が傾斜面から落下した場合であっても、落下する石を法尻まで誘導可能な技術を提供することを目的とする。 Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a technique capable of guiding a falling stone to the foot of a slope even when the stone falls from an inclined surface.

上記課題を解決するために、本発明は、傾斜面における石を覆う落石防護装置であって、前記石を挟んだ前記傾斜面の位置に設けられ傾斜方向に沿って延びる一対のワイヤと、
前記石を覆う被覆部材と、前記被覆部材を前記ワイヤに対して前記傾斜方向において移動自在に連結する連結具と、を備えることを特徴とする。 In order to solve the above-mentioned problems, the present invention provides a rockfall protection device for covering stones on an inclined surface, comprising: a pair of wires provided at positions of the inclined surface sandwiching the stones and extending along the direction of the inclination;
It is characterized by comprising a covering member that covers the stone, and a connector that connects the covering member to the wire so as to be movable in the inclined direction.

また、前記連結具は、前記ワイヤに沿って移動する移動部材と、前記一対のワイヤ間を延びる前記被覆部材の被覆ワイヤを支持する支持部材と、を有していてもよい。 Further, the connector may have a moving member that moves along the wire, and a support member that supports the covering wire of the covering member that extends between the pair of wires.

また、前記連結具は、前記移動部材と前記支持部材との間に前記ワイヤと前記被覆ワイヤとの接触を防止する仕切部材を有していてもよい。 Further, the connector may have a partition member between the moving member and the support member for preventing contact between the wire and the covered wire.

また、前記移動部材は、前記仕切部材との間に前記ワイヤを収容する収容部を有していてもよい。 Moreover, the moving member may have a housing portion for housing the wire between the moving member and the partition member.

また、前記支持部材は、前記仕切部材との間に前記被覆ワイヤを収容する収容部を有していてもよい。 Moreover, the support member may have an accommodation portion that accommodates the coated wire between the partition member and the partition member.

さらに、上記課題を解決するために、本発明に係る連結具は、傾斜面における石を覆う落石防護装置が有する、前記石を挟んだ前記傾斜面の位置に設けられ傾斜方向に沿って延びる一対のワイヤと、前記石を覆う被覆部材とを、該被覆部材が前記ワイヤに対して前記傾斜方向において移動自在であるように連結することを特徴とする。 Furthermore, in order to solve the above-mentioned problems, a coupler according to the present invention is provided at the position of the inclined surface sandwiching the stone and extending along the direction of the inclination, which is provided in a rockfall protection device that covers the stone on the inclined surface. and a covering member covering the stone are connected so that the covering member is movable relative to the wire in the direction of inclination.

本発明によれば、石が傾斜面を落下した場合であっても、落下する石を法尻まで誘導することができる。 According to the present invention, even when a stone falls down an inclined surface, the falling stone can be guided to the bottom of the slope.

本発明に係る落下防護装置の構成を説明するための斜視図である。1 is a perspective view for explaining the configuration of a fall protection device according to the present invention; FIG. 本発明に係る落下防護装置を側方から見た断面図である。1 is a side sectional view of a fall protection device according to the present invention; FIG. 本発明に係る落下防護装置の誘導連結具の構成を説明するための分解斜視図である。FIG. 4 is an exploded perspective view for explaining the configuration of the guiding connector of the fall protection device according to the present invention; 本発明に係る落下防護装置の誘導連結具の斜視図である。1 is a perspective view of a guiding connector of a fall protection device according to the invention; FIG. 誘導連結具が誘導ワイヤ及び横ワイヤに取り付けられた状態を示す概略図である。FIG. 10 is a schematic diagram showing a guiding coupler attached to a guiding wire and a transverse wire; 落石防護装置の作動について説明するための概略図である。FIG. 4 is a schematic diagram for explaining the operation of the falling rock protection device; 変形例に係る誘導連結具の分解斜視図である。It is an exploded perspective view of the guidance coupler concerning a modification.

以下に、本発明の実施の形態について、図面を参照しながら説明する。 BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

本発明に係る落石防護装置１は、石Ｒが傾斜面に沿って落下する状況下において、石Ｒの落下速度及び跳躍を抑制しながら石Ｒを傾斜面の法尻まで誘導するものである。図１は、本発明に係る落下防護装置１の構成を説明するための斜視図である。図２は、本発明に係る落下防護装置１を側方から見た断面図である。 The rock fall protection device 1 according to the present invention guides the stone R to the foot of the slope while suppressing the falling speed and jumping of the stone R under the condition that the stone R falls along the slope. FIG. 1 is a perspective view for explaining the configuration of a fall protection device 1 according to the present invention. FIG. 2 is a side sectional view of the fall protection device 1 according to the present invention.

落石防護装置１は、傾斜面における石Ｒを覆う。落石防護装置１は、石Ｒを挟んだ傾斜面の位置に設けられ傾斜方向に沿って延びる一対の誘導ワイヤ（ワイヤ）２と、石Ｒを覆うワイヤネット（被覆部材）３と、ワイヤネット３を誘導ワイヤ２に対して相対的に移動可能に誘導ワイヤ２に連結する複数の誘導連結具（連結具）４と、を備える。以下、落石防護装置１の構成について具体的に説明する。 The falling rock protection device 1 covers the stones R on the slope. The rockfall protection device 1 includes a pair of guide wires (wires) 2 provided at the position of the inclined surface sandwiching the stone R and extending along the inclination direction, a wire net (coating member) 3 covering the stone R, and a wire net 3. a plurality of guiding connectors (couplings) 4 for connecting to the guide wire 2 movably relative to the guide wire 2 . The configuration of the falling rock protection device 1 will be specifically described below.

一対の誘導ワイヤ２は、鋼製のワイヤであり、傾斜面に一部埋まっている防護対象となる石Ｒを挟んで傾斜面に沿って設けられている。誘導ワイヤ２の上端は、傾斜面において石Ｒより上側においてアンカ２１により傾斜面に固定されている。誘導ワイヤ２の下端は、傾斜面の法尻においてアンカ２２により傾斜面に固定されている。 A pair of guide wires 2 are wires made of steel, and are provided along the slope with a stone R to be protected, which is partly buried in the slope, sandwiched therebetween. The upper end of the guide wire 2 is fixed to the inclined surface by an anchor 21 above the stone R on the inclined surface. The lower end of the guide wire 2 is fixed to the inclined surface by an anchor 22 at the toe of the inclined surface.

ワイヤネット３は、防護対象となる石Ｒ全体を覆っている。ワイヤネット３は、石Ｒが落下する場合、落下する石Ｒと共に誘導ワイヤ２に沿って法尻まで移動する。ワイヤネット３は、鋼製の複数の横ワイヤ（被覆ワイヤ）３１と、鋼製の複数の縦ワイヤ３６とを有する。ワイヤネット３は、横ワイヤ３１と縦ワイヤ３６とを格子状に配置することにより形成されている。横ワイヤ３１は、一対の誘導ワイヤ２間を延びている。各横ワイヤ３１は、傾斜面の高さ方向において互いに所定の間隔をあけて設けられている。横ワイヤ３１は、両端部に環状部３２を有する（図５参照）。 The wire net 3 covers the entire stone R to be protected. When the stone R falls, the wire net 3 moves along the guide wire 2 to the toe of the slope together with the falling stone R. The wire net 3 has a plurality of horizontal wires (coated wires) 31 made of steel and a plurality of vertical wires 36 made of steel. The wire net 3 is formed by arranging horizontal wires 31 and vertical wires 36 in a grid pattern. A transverse wire 31 extends between the pair of guide wires 2 . Each horizontal wire 31 is provided at a predetermined distance from each other in the height direction of the inclined surface. The transverse wire 31 has annular portions 32 at both ends (see FIG. 5).

縦ワイヤ３６は、一対の誘導ワイヤ２の間で傾斜面に沿って誘導ワイヤ２の延び方向と略平行に延びている。各縦ワイヤ３６は、交差する横ワイヤ３１に編み込まれるようになっている。各縦ワイヤ３６の両端は、傾斜面において最も上側及び最も下側にある横ワイヤ３１に所定の方法により連結されている。 The vertical wire 36 extends substantially parallel to the extending direction of the guide wire 2 along the inclined surface between the pair of guide wires 2 . Each vertical wire 36 is woven into the crossing horizontal wires 31 . Both ends of each vertical wire 36 are connected by a predetermined method to the uppermost and lowermost horizontal wires 31 on the inclined surface.

図３は、本発明に係る落下防護装置１の誘導連結具４の構成を説明するための分解斜視図である。図４は、本発明に係る落下防護装置１の誘導連結具４の斜視図である。図５は、誘導連結具４が誘導ワイヤ２及び横ワイヤ３１に取り付けられた状態を示す概略図である。誘導連結具４は、誘導ワイヤ２とワイヤネット３とを連結する。つまり、誘導ワイヤ２とワイヤネット３とは直接的に連結されておらず、誘導連結具４を介して互いに連結されている。なお、説明の便宜上、図面においては、誘導連結具４において誘導ワイヤ２が案内される方向を長手方向Ｌとし、ワイヤネット３の横ワイヤ３１が支持される方向を短手方向Ｗとする。 FIG. 3 is an exploded perspective view for explaining the configuration of the guiding connector 4 of the fall protection device 1 according to the present invention. FIG. 4 is a perspective view of the guiding connector 4 of the fall protection device 1 according to the invention. FIG. 5 is a schematic diagram showing a state in which the guide coupler 4 is attached to the guide wire 2 and the transverse wire 31. As shown in FIG. The guiding connector 4 connects the guiding wire 2 and the wire net 3 . That is, the guide wire 2 and the wire net 3 are not directly connected, but are connected to each other via the guide connector 4 . For convenience of explanation, in the drawings, the direction in which the guide wire 2 is guided in the guide connector 4 is defined as the longitudinal direction L, and the direction in which the horizontal wires 31 of the wire net 3 are supported is defined as the lateral direction W.

誘導連結具４は、誘導ワイヤ２と横ワイヤ３１との交点に設けられていて、ワイヤネット３を誘導ワイヤ２に対して傾斜面の傾斜方向において移動自在に連結する。誘導連結具４は、金属製である。誘導連結具４は、摺動板材（移動部材）４１と、仕切板材（仕切部材）４２と、支持板材（支持部材）４３と、を有する。摺動板材４１、仕切板材４２及び支持板材４３は、互いにボルトＢ及びナットＮにより互いに連結されている。 The guide connector 4 is provided at the intersection of the guide wire 2 and the horizontal wire 31, and connects the wire net 3 to the guide wire 2 so as to be movable in the inclined direction of the inclined surface. The guiding coupler 4 is made of metal. The guiding coupler 4 has a sliding plate member (moving member) 41 , a partition plate member (partition member) 42 , and a support plate member (support member) 43 . The sliding plate member 41, the partition plate member 42, and the support plate member 43 are connected to each other by bolts B and nuts N. As shown in FIG.

摺動板材４１は、誘導連結具４全体を誘導ワイヤ２に沿って摺動可能である。摺動板材４１は、平面視略矩形状を有する。摺動板材４１は、一対の平坦部４１ａと、案内収容部（収容部）４１ｂと、を有する。一対の平坦部４１ａの間に案内収容部４１ｂが位置する。平坦部４１ａは、摺動板材４１の短手方向Ｗにおける両端部に位置し、摺動板材４１において長手方向Ｌに延びている。平坦部４１ａは、４つの貫通孔４１ｃを有する。貫通孔４１ｃは、長手方向Ｌに沿って所定の間隔をあけて設けられている。 The sliding plate member 41 can slide the entire guide connector 4 along the guide wire 2 . The sliding plate member 41 has a substantially rectangular shape in plan view. The sliding plate member 41 has a pair of flat portions 41a and a guide accommodation portion (accommodation portion) 41b. A guide housing portion 41b is positioned between the pair of flat portions 41a. The flat portions 41 a are located at both ends of the sliding plate member 41 in the lateral direction W and extend in the longitudinal direction L of the sliding plate member 41 . The flat portion 41a has four through holes 41c. The through holes 41c are provided along the longitudinal direction L at predetermined intervals.

案内収容部４１ｂは、摺動板材４１の短手方向Ｗにおける中央部において長手方向Ｌに延びている。案内収容部４１ｂにおいて誘導ワイヤ２が収容される。案内収容部４１ｂは、一対の平坦部４１ａに挟まれている。案内収容部４１ｂは、摺動板材４１の板厚を一定に保った状態において、支持部材４３とは反対側に平坦部４１ａから湾曲して形成されている。誘導連結具４において、摺動部材４１と仕切板材４２との間で案内収容部４１ｂの位置に、誘導ワイヤ２が挿通される挿通空間Ｓ１が形成されている。なお、誘導ワイヤ２は、挿通空間Ｓ１においては、案内収容部４１ｂの仕切板材４２に面する面に接触している。 The guide accommodation portion 41b extends in the longitudinal direction L at the central portion of the sliding plate member 41 in the lateral direction W. As shown in FIG. The guide wire 2 is accommodated in the guide accommodation portion 41b. The guide housing portion 41b is sandwiched between the pair of flat portions 41a. The guide housing portion 41b is formed so as to curve from the flat portion 41a toward the side opposite to the support member 43 when the plate thickness of the sliding plate member 41 is kept constant. In the guide connector 4, an insertion space S1 through which the guide wire 2 is inserted is formed between the sliding member 41 and the partition plate member 42 at the position of the guide housing portion 41b. The guide wire 2 is in contact with the surface facing the partition plate member 42 of the guide housing portion 41b in the insertion space S1.

仕切板材４２は、誘導ワイヤ２とワイヤネット３の横ワイヤ３１とが互いに直接接触することを防ぐ。仕切板材４２は、平面視略矩形状を有する。仕切板材４２の長手方向Ｌ及び短手方向Ｗにおける寸法は、摺動板材４１と同じである。仕切板材４２は、短手方向Ｗにおける端部付近において、摺動板材４１の貫通孔４１ｃに対応する位置に貫通孔４２ａを有する。 The partition plate material 42 prevents the guide wire 2 and the horizontal wire 31 of the wire net 3 from directly contacting each other. The partition plate material 42 has a substantially rectangular shape in plan view. The dimensions of the partition plate member 42 in the longitudinal direction L and the width direction W are the same as those of the sliding plate member 41 . The partition plate member 42 has a through hole 42a near the end in the lateral direction W at a position corresponding to the through hole 41c of the sliding plate member 41 .

支持板材４３は、ワイヤネット３の横ワイヤ３１を環状部３２において支持する。支持板材４３は、平面視略矩形状を有する。支持板材４３は、一対の平坦部４３ａと、案内収容部（収容部）４３ｂと、を有する。一対の平坦部４３ａの間に案内収容部４３ｂが位置する。平坦部４３ａは、支持板材４３の長手方向Ｌにおける両端部に位置する。平坦部４３ａは、４つの貫通孔４３ｃを有する。各貫通孔４３ｃは、摺動板材４１の貫通孔４１ｃ及び仕切板材４２の貫通孔４２ａに対応する位置に設けられている。 The support plate member 43 supports the horizontal wire 31 of the wire net 3 at the annular portion 32 . The support plate member 43 has a substantially rectangular shape in plan view. The support plate member 43 has a pair of flat portions 43a and a guide accommodation portion (accommodation portion) 43b. A guide housing portion 43b is positioned between the pair of flat portions 43a. The flat portions 43 a are located at both ends in the longitudinal direction L of the support plate member 43 . The flat portion 43a has four through holes 43c. Each through hole 43 c is provided at a position corresponding to the through hole 41 c of the sliding plate member 41 and the through hole 42 a of the partition plate member 42 .

案内収容部４３ｂは、支持板材４３の長手方向Ｌにおける中央部において短手方向Ｗに延びていて平坦部４１ｂに挟まれている。案内収容部４３ｂは、摺動板材４１の案内収容部４１ｂの延び方向に対して交差する方向に延びている。案内収容部４３ｂにおいて、横ワイヤ３１の環状部３２が案内（支持）されている。横ワイヤ３１は、誘導連結具４と共に移動するようになっている。 The guide housing portion 43b extends in the lateral direction W at the central portion of the support plate member 43 in the longitudinal direction L and is sandwiched between the flat portions 41b. The guide housing portion 43b extends in a direction intersecting the extending direction of the guide housing portion 41b of the sliding plate member 41. As shown in FIG. The annular portion 32 of the horizontal wire 31 is guided (supported) in the guide housing portion 43b. The transverse wire 31 is adapted to move with the guiding connector 4 .

案内収容部４３ｂは、摺動板材４１の板厚を一定に保った状態において、摺動板材４１とは反対側に平坦部４３ａから湾曲して形成されている。案内収容部４３ｂは、摺動板材４１とは反対側に平坦部４３ａから膨らんで弧状に形成されている。誘導連結具４において、支持板材４３と仕切板材４２との間で案内収容部４３ｂの位置に、横ワイヤ３１が環状部３２において挿通される挿通空間Ｓ２が形成されている。誘導連結具４は、本実施の形態においては、横ワイヤ３１の環状部３２の内側を、摺動板材４１及び仕切板材４２が抜けるようになっているが、支持板材４３のみが環状部３２の内側を抜けるようになっていてもよい。 The guide housing portion 43b is formed so as to curve from the flat portion 43a to the side opposite to the sliding plate member 41 when the plate thickness of the sliding plate member 41 is kept constant. The guide housing portion 43b is formed in an arc shape so as to protrude from the flat portion 43a on the side opposite to the sliding plate member 41. As shown in FIG. In the guiding connector 4, an insertion space S2 through which the horizontal wire 31 is inserted in the annular portion 32 is formed between the support plate member 43 and the partition plate member 42 at the position of the guide housing portion 43b. In the present embodiment, the guide connector 4 is configured such that the sliding plate member 41 and the partition plate member 42 pass through the inner side of the annular portion 32 of the horizontal wire 31 , but only the support plate member 43 is attached to the annular portion 32 . It may be designed to pass through the inside.

次に、誘導連結具４による誘導ワイヤ２とワイヤネット３との連結方法について説明する。ワイヤネット３の横ワイヤ３１における環状部３２に一対の誘導ワイヤ２が通っているようにする。次いで、摺動板材４１を案内収容部４１ｂにおいて誘導ワイヤ２に載せ、反対側から仕切板材４２を当て付けて、誘導ワイヤ２を摺動板材４１と仕切板材４２との間で挟む。 Next, a method of connecting the guide wire 2 and the wire net 3 by the guide connector 4 will be described. A pair of guide wires 2 are passed through loops 32 of lateral wires 31 of the wire net 3 . Next, the sliding plate member 41 is placed on the guide wire 2 in the guide housing portion 41b, and the partition plate member 42 is applied from the opposite side to sandwich the guide wire 2 between the sliding plate member 41 and the partition plate member 42.

摺動板材４１と仕切板材４２とを誘導ワイヤ２に沿って横ワイヤ３１の環状部３２の内側に移動させ、仕切板材４２の側にある横ワイヤ３１の環状部３２が支持板材４３の案内収容部４３ｂにおいて案内されるようにする。最後に、摺動板材４１、仕切板材４２及び支持板材４３における互いに整合した貫通孔４１ｃ，４２ａ，４３ｃに、摺動板材４１の側からボルトＢを通して支持板材４３の側でナットＮを締め付ける。これにより、誘導連結具４による誘導ワイヤ２とワイヤネット３とが連結される。 The sliding plate member 41 and the partition plate member 42 are moved inside the annular portion 32 of the horizontal wire 31 along the guide wire 2 so that the annular portion 32 of the horizontal wire 31 on the side of the partition plate member 42 guides and accommodates the support plate member 43 . It is made to be guided in the portion 43b. Finally, through holes 41c, 42a, and 43c in the slide plate 41, partition plate 42, and support plate 43, bolts B are passed through the slide plate 41 and nuts N are tightened on the support plate 43. As a result, the guide wire 2 and the wire net 3 are connected by the guide connector 4 .

なお、誘導連結具４による誘導ワイヤ２とワイヤネット３との連結方法はこれに限られず、当業者であれば適宜状況に応じて誘導連結具４により誘導ワイヤ２とワイヤネット３とを連結することができる。例えば、誘導ワイヤ２を横ワイヤ３１の環状部３２に通さなくてもよい。この場合、横ワイヤ３１の環状部３２は、支持板材４３における案内収容部４３ｂのみが通るようになっている。 The method of connecting the guide wire 2 and the wire net 3 with the guide connector 4 is not limited to this, and those skilled in the art can connect the guide wire 2 and the wire net 3 with the guide connector 4 according to the situation. be able to. For example, the guide wire 2 may not pass through the loop 32 of the transverse wire 31 . In this case, the annular portion 32 of the horizontal wire 31 is designed so that only the guide housing portion 43b of the support plate member 43 passes through.

次に、落石防護装置１の作動について説明する。図６は、落石防護装置１の作動について説明するための概略図であり、図６（ａ）は、落石防護装置１の設置状態を示す図であり、図６（ｂ）は、落石防護装置１の作動状態を示す図である。例えば、地震や豪雨等により、地盤の状況が変化して石Ｒが傾斜面から落下しそうな場合、ワイヤネット３に石Ｒによる荷重が働く。石Ｒが落下する場合、石Ｒからワイヤネット３の横ワイヤ３１への荷重が一定値を超えた場合、荷重はワイヤネット３から誘導連結具４に伝達される。より具体的には、落下しつつある石Ｒから、傾斜面に沿って下側に横ワイヤ３１に働く荷重が誘導連結具４の支持板材４３に伝達する。これにより、誘導連結具４は、誘導ワイヤ２に沿って傾斜面を緩やかに法尻に向かって摺動（移動）し始める。ワイヤネット３は、石Ｒと共に、誘導ワイヤ２に沿った誘導連結具４の摺動に応じて緩やかに法尻に向かって移動する。 Next, the operation of the falling rock protection device 1 will be described. 6A and 6B are schematic diagrams for explaining the operation of the rockfall protection device 1. FIG. 6A is a diagram showing the installation state of the rockfall protection device 1, and FIG. 1 shows the operating state of FIG. For example, when the ground conditions change due to an earthquake, heavy rain, or the like, and the stone R is likely to fall from the slope, the load of the stone R acts on the wire net 3 . When the stone R falls, the load is transmitted from the wire net 3 to the guiding connector 4 when the load from the stone R to the transverse wire 31 of the wire net 3 exceeds a certain value. More specifically, the load acting on the horizontal wire 31 downward along the inclined surface from the falling stone R is transmitted to the support plate member 43 of the guide connector 4 . As a result, the guide coupler 4 begins to slide (move) gently along the guide wire 2 on the inclined surface toward the toe of the slope. The wire net 3 along with the stone R gently moves toward the toe of the slope according to the sliding of the guide connector 4 along the guide wire 2. - 特許庁

以上のような誘導連結具４を有する落石防護装置１によれば、ワイヤネット３は、石Ｒを覆ったまま石Ｒの落下と共に誘導ワイヤ２に沿って移動するので、落石防護装置１に石Ｒによる荷重が過度にかかることを防ぐことができる。落石防護装置１により、想定以上の大きさの石Ｒが落下した場合であっても、石Ｒの落下速度及び傾斜面からの石Ｒの跳躍を抑制しながら、石Ｒを法尻まで誘導することができる。誘導連結具４により落石防護装置１への石Ｒの荷重低減効果を達成することができる。さらに、落石防護装置１により、巨大な石Ｒ等に対する直接的な落石防護対策を実施することができる。 According to the rockfall protection device 1 having the guide connector 4 as described above, the wire net 3 moves along the guide wire 2 as the stones R fall while covering the stones R. An excessive load due to R can be prevented. Even when a stone R larger than expected is dropped, the stone fall protection device 1 guides the stone R to the foot of the slope while suppressing the falling speed of the stone R and jumping of the stone R from the slope. be able to. The guide coupling 4 can achieve the effect of reducing the load of the stone R on the rockfall protection device 1 . Furthermore, the rockfall protection device 1 can implement direct rockfall protection measures against a huge stone R or the like.

また、誘導連結具４は、摺動板材４１と支持板材４３との間に仕切板材４２を有しているので、誘導ワイヤ２と横ワイヤ３１とが直接的に接触して摩耗することを防ぐことができる。 In addition, since the guide connector 4 has the partition plate member 42 between the sliding plate member 41 and the support plate member 43, the guide wire 2 and the horizontal wire 31 are prevented from being worn due to direct contact. be able to.

また、誘導連結具４は、案内収容部４１ｂにより摺動板材４１と仕切板材４２との間に挿通空間Ｓ１が設けられている。誘導連結具４は、挿通空間Ｓ１内で仕切板材４２に面する案内収容部４１ｂの内周面と摺動板材４１に面する仕切板材４２の面との間で、誘導ワイヤ２に接触しているので、石Ｒから所定の荷重がかからない限り誘導ワイヤ２に対して相対的に移動することはない。 Further, the guiding connector 4 is provided with an insertion space S1 between the sliding plate member 41 and the partition plate member 42 by the guide housing portion 41b. The guide connector 4 is in contact with the guide wire 2 between the inner peripheral surface of the guide housing portion 41b facing the partition plate member 42 and the surface of the partition plate member 42 facing the sliding plate member 41 in the insertion space S1. Therefore, it does not move relative to the guide wire 2 unless a predetermined load is applied from the stone R.

次に、変形例に係る誘導連結具５について説明する。図７は、変形例に係る誘導連結具５の分解斜視図である。誘導連結具５は、金属製である。誘導連結具５は、摺動板材（摺動部材）５１と、仕切板材（仕切部材）５２と、２つのＵ字金具（支持部材）と、を有する。摺動板材５１及び仕切板材５２は、Ｕ字金具により互いに連結されている。摺動板材５１は、平面視略方形であり、一対の平坦部５１ａと、案内収容部（収容部）５１ｂと、を有する。各平坦部５１ａは、長手方向Ｌに沿って互いに所定の間隔をあけた２つの貫通孔５１ｃを有する。仕切板材５２は、幅方向Ｗにおける端部付近において、摺動板材５１の貫通孔５１ｃに対応する位置に貫通孔５２ａを有する。その他の摺動板材５１及び仕切板材５２の構成は、誘導連結具４における摺動板材４１及び仕切板材４２とほぼ同じである。 Next, the guiding coupler 5 according to the modified example will be described. FIG. 7 is an exploded perspective view of a guiding connector 5 according to a modification. The guiding coupler 5 is made of metal. The guiding connector 5 has a sliding plate member (sliding member) 51, a partition plate member (partition member) 52, and two U-shaped fittings (support members). The sliding plate member 51 and the partition plate member 52 are connected to each other by U-shaped fittings. The sliding plate member 51 has a substantially rectangular shape in a plan view, and has a pair of flat portions 51a and a guide accommodation portion (accommodation portion) 51b. Each flat portion 51a has two through holes 51c spaced apart from each other along the longitudinal direction L by a predetermined distance. The partition plate member 52 has a through hole 52 a at a position corresponding to the through hole 51 c of the sliding plate member 51 near the end portion in the width direction W. Other configurations of the sliding plate member 51 and the partition plate member 52 are substantially the same as those of the sliding plate member 41 and the partition plate member 42 in the guide connector 4 .

Ｕ字金具は、Ｕ字ボルト５３と、２つのナット５４とを有する。Ｕ字ボルト５３における２つの脚部５３ａの先端にはねじ山部５３ｂが形成されている。Ｕ字ボルト５３の脚部５３ａは、摺動板材５１において案内収容部５１ｂに沿って配置された貫通孔５１ｃ及び仕切板材５２の貫通孔５２ａに挿通される。Ｕ字ボルト５３の脚部５３ａは、仕切板材５２の側から挿通され、摺動板材５１から突出した部分においてナット５５によって係止される。 The U-shaped fitting has a U-shaped bolt 53 and two nuts 54 . Threaded portions 53b are formed at the ends of the two leg portions 53a of the U-shaped bolt 53. As shown in FIG. The leg portion 53 a of the U-shaped bolt 53 is inserted through the through hole 51 c arranged along the guide accommodating portion 51 b in the sliding plate member 51 and the through hole 52 a of the partition plate member 52 . The leg portion 53 a of the U-shaped bolt 53 is inserted from the partition plate member 52 side, and is locked by a nut 55 at the portion protruding from the sliding plate member 51 .

誘導連結具５において、仕切板材５２とＵ字ボルト５３との間には、横ワイヤ３１の環状部３２を支持する挿通開口Ｓ３が形成される。２つのＵ字ボルト５３において形成される挿通開口Ｓ３は、短手方向Ｗに通じている。つまり、横ワイヤ３１は、誘導ワイヤ２に対して交差する方向（短手方向Ｗ）において誘導連結具５により支持されている。横ワイヤ３１の環状部３２は、Ｕ字ボルト５３の２つの脚部５３ａの間に支持されている。 In the guiding connector 5, an insertion opening S3 for supporting the annular portion 32 of the horizontal wire 31 is formed between the partition plate member 52 and the U-shaped bolt 53. As shown in FIG. Insertion openings S3 formed in the two U-shaped bolts 53 communicate in the lateral direction W. As shown in FIG. In other words, the horizontal wire 31 is supported by the guide connector 5 in the direction crossing the guide wire 2 (lateral direction W). The annular portion 32 of the transverse wire 31 is supported between the two legs 53a of the U-bolt 53. As shown in FIG.

誘導連結具５を用いた落石防護装置１においても、誘導連結具４を用いた落石防護装置１と同様の効果を奏する。 The rockfall protection device 1 using the guide connector 5 also has the same effects as the rockfall protection device 1 using the guide connector 4 .

以上、本発明の好適な実施の形態について説明したが、本発明は上記の実施の形態に限定されるものではなく、本発明の概念及び特許請求の範囲に含まれるあらゆる態様を含む。また、上述した課題及び効果の少なくとも一部を奏するように、各構成を適宜選択的に組み合わせてもよい。例えば、上記実施の形態における各構成要素の形状、材料、配置、サイズ等は、本発明の具体的使用態様によって適宜変更されうる。例えば、上記の実施の形態において落石防護装置１は、石Ｒを防護対象としていたが、例えば、傾斜面に生えている木等、傾斜面から落下したり滑り落ちたりすることが危険となる対象物であればあらゆるものに適用することができる。 Although preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and includes all aspects included in the concept of the present invention and the scope of claims. Moreover, each configuration may be selectively combined as appropriate so as to achieve at least part of the above-described problems and effects. For example, the shape, material, arrangement, size, etc. of each component in the above embodiments can be changed as appropriate according to the specific usage of the present invention. For example, in the above-described embodiment, the rockfall protection device 1 protects stones R, but it is possible to protect objects such as trees growing on an inclined surface that are dangerous to fall or slide down from an inclined surface. It can be applied to any object.

また、上記の実施の形態において落石防護装置１は単独で使用していたが、本発明に係る落石防護装置１を、他の落石対策工と併用してもよい。これにより、落石による被害をより確実に抑えることができる。 Further, although the falling rock protection device 1 is used alone in the above embodiment, the falling rock protection device 1 according to the present invention may be used in combination with other measures against falling rocks. As a result, damage caused by falling rocks can be suppressed more reliably.

１ 落石防護装置
２ 誘導ワイヤ（ワイヤ）
３ ワイヤネット（被覆部材）
３１ 横ワイヤ（被覆ワイヤ）
４ 誘導連結具（連結具）
４１ 摺動板材（移動部材）
４１ｂ 案内収容部（収容部）
４２ 仕切板材（仕切部材）
４３ 支持板材（支持部材）
４３ｂ 案内収容部（収容部）
５ 誘導連結具（連結具）
５１ 摺動板材（移動部材）
５１ｂ 案内収容部（収容部）
５２ 仕切板材（仕切部材）
５３ Ｕ字ボルト（支持部材） 1 Falling rock protection device 2 Guide wire (wire)
3 wire net (coating member)
31 transverse wire (coated wire)
4 Guidance coupler (coupler)
41 sliding plate material (moving member)
41b Guidance accommodation part (accommodation part)
42 Partition plate material (partition member)
43 support plate material (support member)
43b Guidance accommodation part (accommodation part)
5 Induction coupler (coupler)
51 sliding plate material (moving member)
51b Guidance accommodation part (accommodation part)
52 Partition plate material (partition member)
53 U-shaped bolt (support member)

Claims (6)

傾斜面における石を覆う落石防護装置であって、
前記石を挟んだ前記傾斜面の位置に設けられ傾斜方向に沿って延びる一対のワイヤと、
前記石を覆う被覆部材と、
前記被覆部材を前記ワイヤに対して前記傾斜方向において移動自在に連結する連結具と、
を備え、
前記被覆部材は、前記一対のワイヤ間を延びていて前記傾斜方向に所定の間隔をあけて設けられた複数の横ワイヤを有し、
前記横ワイヤの両端部は、前記連結具を介して前記一対のワイヤに支持されており、
前記横ワイヤは、前記石の落下と共に前記一対のワイヤに沿って移動して、前記石を前記傾斜面の法尻に向かって誘導する、
ことを特徴とする落石防護装置。 A rockfall protection device for covering stones on a slope,
a pair of wires provided at the position of the inclined surface sandwiching the stone and extending along the inclined direction;
a covering member covering the stone;
a connector that connects the covering member to the wire so as to be movable in the inclined direction;
with
The covering member has a plurality of horizontal wires extending between the pair of wires and provided at predetermined intervals in the inclined direction,
Both ends of the horizontal wire are supported by the pair of wires via the connector,
The horizontal wire moves along the pair of wires as the stone falls, and guides the stone toward the toe of the slope.
A falling rock protection device characterized by: 前記連結具は、
前記ワイヤに沿って移動する移動部材と、
前記一対のワイヤ間を延びる前記被覆部材の被覆ワイヤを支持する支持部材と、
を有することを特徴とする請求項１に記載の落石防護装置。 The connector is
a moving member that moves along the wire;
a support member that supports the covering wire of the covering member that extends between the pair of wires;
The falling rock protection device according to claim 1, characterized by comprising: 前記連結具は、前記移動部材と前記支持部材との間に前記ワイヤと前記被覆ワイヤとの接触を防止する仕切部材を有することを特徴とする請求項２に記載の落石防護装置。 3. A rockfall protection device according to claim 2, wherein said connector has a partition member between said moving member and said support member for preventing contact between said wire and said covered wire. 前記移動部材は、前記仕切部材との間に前記ワイヤを収容する収容部を有することを特徴とする請求項３に記載の落石防護装置。 4. A falling rock protection device according to claim 3, wherein said moving member has a housing portion for housing said wire between said moving member and said partition member. 前記支持部材は、前記仕切部材との間に前記被覆ワイヤを収容する収容部を有することを特徴とする請求項３又は４に記載の落石防護装置。 5. The rockfall protection device according to claim 3, wherein the support member has a housing portion for housing the coated wire between the partition member and the partition member. 傾斜面における石を覆う落石防護装置が有する、前記石を挟んだ前記傾斜面の位置に設けられ傾斜方向に沿って延びる一対のワイヤと、前記石を覆う被覆部材とを、該被覆部材が前記ワイヤに対して前記傾斜方向において移動自在であるように連結する連結具であって、
前記一対のワイヤに沿って移動する移動部材と、
前記被覆部材が有する、前記一対のワイヤ間を延びていて前記傾斜方向に所定の間隔をあけて設けられた複数の横ワイヤの両端部を支持する支持部材と、
を備え、
前記支持部材は、前記移動部材に連結されており、
前記石の落下と共に前記一対のワイヤに沿って横ワイヤを移動させて、前記石を前記傾斜面の法尻に向かって誘導する
ことを特徴とする連結具。 A falling rock protection device for covering stones on an inclined surface includes a pair of wires provided at positions of the inclined surface sandwiching the stones and extending along the direction of the inclination, and a covering member covering the stones. A connector that connects to a wire so as to be movable in the inclined direction ,
a moving member that moves along the pair of wires;
a supporting member for supporting both end portions of a plurality of horizontal wires extending between the pair of wires and provided at predetermined intervals in the inclined direction, which the covering member has;
with
The support member is connected to the moving member,
A horizontal wire is moved along the pair of wires as the stone falls to guide the stone toward the toe of the slope.
A coupler characterized by:
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000297434A (en) 1996-12-04 2000-10-24 Civil:Kk Rockfall prevention method
JP2009209598A (en) 2008-03-05 2009-09-17 Civil:Kk Grasping tool for impact absorbing rope, and impact absorbing method using the same
JP2013249695A (en) 2012-06-04 2013-12-12 Nippon Zenith Pipe Co Ltd Guard fence
JP2016108742A (en) 2014-12-02 2016-06-20 ゼニス羽田株式会社 Post unit
JP6440886B1 (en) 2018-05-24 2018-12-19 株式会社シビル Rock fall protection net with a top rope through structure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3341491C1 (en) * 1983-11-17 1985-07-11 Brohltal-Deumag AG für feuerfeste Erzeugnisse, 5401 Urmitz Gas flushing stone for metallurgical vessels

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000297434A (en) 1996-12-04 2000-10-24 Civil:Kk Rockfall prevention method
JP2009209598A (en) 2008-03-05 2009-09-17 Civil:Kk Grasping tool for impact absorbing rope, and impact absorbing method using the same
JP2013249695A (en) 2012-06-04 2013-12-12 Nippon Zenith Pipe Co Ltd Guard fence
JP2016108742A (en) 2014-12-02 2016-06-20 ゼニス羽田株式会社 Post unit
JP6440886B1 (en) 2018-05-24 2018-12-19 株式会社シビル Rock fall protection net with a top rope through structure

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