JP7110015B2 - Road lining unit for width change - Google Patents

Road lining unit for width change Download PDF

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JP7110015B2
JP7110015B2 JP2018131002A JP2018131002A JP7110015B2 JP 7110015 B2 JP7110015 B2 JP 7110015B2 JP 2018131002 A JP2018131002 A JP 2018131002A JP 2018131002 A JP2018131002 A JP 2018131002A JP 7110015 B2 JP7110015 B2 JP 7110015B2
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mountain retaining
retaining member
width
excavated groove
excavated
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JP2020007823A (en
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剛 西山
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株式会社大盛工業
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Description

本発明は、幅変更用路面覆工ユニットに係り、特に、路面に対して幅方向に屈曲部を有する掘削溝を形成して行う工事の路面覆工作業に用いられる幅変更用路面覆工ユニットに関する。 TECHNICAL FIELD The present invention relates to a width-changing road lining unit, and in particular, a width-changing road lining unit used for road lining work in construction work performed by forming an excavated groove having a bend in the width direction of the road surface. Regarding.

従来から、路面に対して掘削溝を形成して行う工事の路面覆工作業の方法として、掘削溝の幅方向の側方から土砂崩れや陥没が生じることを防止すべく、掘削溝の幅方向の両側部分にそれぞれ略L字形状の山留め部材を設置した上で、掘削溝の開口を覆工板で塞ぐ路面覆工方法が広く知られている(例えば、特許文献1、2参照)。 Conventionally, as a method of road surface lining work for construction work performed by forming an excavated groove in the road surface, in order to prevent landslides and depressions from occurring from the side of the excavated groove in the width direction, A road surface lining method is widely known in which substantially L-shaped mountain retaining members are installed on both sides, respectively, and the opening of the excavated trench is closed with a lining plate (see, for example, Patent Documents 1 and 2).

特許文献1に記載の路面覆工方法は、路面の進行方向に沿って覆工板を載置する工法、いわゆる覆工板縦置き工法に関する発明である。
具体的には、路面に形成された掘削溝の幅方向の両端にそれぞれL字形状の山留め部材を複数並べるように設置し、掘削溝の延出方向の両端にはそれぞれL字形状の端部形成部材を山留部材の底壁上に設置した上で、当該端部形成部材に設けられた台座上に覆工板を載置する方法である(掘削溝の延出方向の中間部分には、さらに覆工板を支持するためのH字形状の受桁が設置される)。上記構成により、山留め効果を発揮しながら覆工板を設置することができる。
なお、覆工板縦置き工法では、道路の進行方向に沿って覆工板を並べて載置するため、進行方向において覆工板同士の境目の数が相対的に少なく、車両の走行により適した工法と言える。
The road surface lining method described in Patent Document 1 is an invention related to a method of placing a lining plate along the traveling direction of the road surface, a so-called lining plate vertical installation method.
Specifically, a plurality of L-shaped mountain retaining members are arranged side by side at both ends in the width direction of the excavated groove formed in the road surface, and L-shaped end portions are installed at both ends in the extending direction of the excavated groove. In this method, the forming member is installed on the bottom wall of the earth retaining member, and then the lining plate is placed on the pedestal provided on the end forming member. , and an H-shaped support girder is installed to support the lining plate). With the above configuration, the lining plate can be installed while exhibiting the retaining effect.
In the vertical lining board method, the lining boards are placed side by side along the direction of travel of the road, so the number of boundaries between lining boards in the direction of travel is relatively small, making it more suitable for vehicle travel. It can be said that it is a construction method.

特許文献2に記載の路面覆工方法は、路面の進行方向とは直交する向きに覆工板を載置する工法、いわゆる覆工板横置き工法に関する発明である。
具体的には、掘削溝の幅方向の両端にそれぞれL字形状の山留め部材を複数並べるように設置し、掘削溝の延出方向の両端にはそれぞれ端部プレートを山留め部材の側方端部に連結させて設置した上で、山留め部材に設けられた張り出し部上に覆工板を載置する方法である。上記構成においても山留め効果を発揮できる。
なお、覆工板横置き工法では、道路の進行方向とは直交方向に覆工板を並べるところ、例えば、当該覆工板を載置するにあたって受桁を強度上必要とせず、掘削溝内で受桁が占めていたスペースを有効活用することができる。
The road surface lining method described in Patent Document 2 is an invention relating to a method of placing a lining plate in a direction orthogonal to the traveling direction of the road surface, that is, a so-called horizontal lining plate method.
Specifically, a plurality of L-shaped mountain retaining members are arranged side by side at both ends of the excavated groove in the width direction, and end plates are provided at both ends of the excavated groove in the extending direction. In this method, the lining plate is placed on the projecting portion provided on the mountain retaining member after the lining plate is installed by being connected to it. Even in the above configuration, the mountain retaining effect can be exhibited.
In addition, in the lining board horizontal installation method, the lining board is arranged in the direction perpendicular to the direction of travel of the road. The space occupied by the receiving girder can be effectively utilized.

特開2016-11513号公報JP 2016-11513 A 特開2016-14297号公報JP 2016-14297 A

ところで、路面に対し掘削溝を形成するにあたって、路面の状況(例えば、路面の一部に電柱が予め埋められている状況や、マンホールが形成されている状況等)によっては、必ずしも路面に沿って直線的に、すなわち長方形状又は正方形状の掘削溝を形成することができない場合がある。
上記の場合には、特許文献1や特許文献2のような路面覆工方法をそのまま採用することができないため、例えば、路面に対して幅方向に屈曲部のある掘削溝(拡幅または減幅する掘削溝)を形成した後は、作業者が現場レベルでH型鋼やL型鋼を加工し適宜組み合わせて溶接する等して対応していた。
そのため、路面覆工作業において作業者の負担を軽減することが可能な路面覆工ユニットが求められていた。
By the way, in forming an excavated groove on the road surface, depending on the condition of the road surface (for example, a situation where a utility pole is already buried in a part of the road surface, a situation where a manhole is formed, etc.), it may not necessarily be along the road surface. It may not be possible to form straight, ie rectangular or square, trenches.
In the above case, the road surface lining method such as Patent Document 1 or Patent Document 2 cannot be adopted as it is. After forming the excavated groove), the workers processed the H-shaped steel and L-shaped steel at the site level, combined them appropriately, and welded them.
Therefore, there has been a demand for a road lining unit that can reduce the burden on workers in road lining work.

本発明は、上記の課題に鑑みてなされたものであり、本発明の目的は、路面に対して路面の幅方向に屈曲部を有する掘削溝を形成した場合であっても、路面覆工作業において作業者の負担を軽減した路面覆工作業を可能とする幅変更用路面覆工ユニットを提供することにある。
また、本発明の他の目的は、路面覆工作業において山留め効果を十分に発揮することが可能な幅変更用路面覆工ユニットを提供する。
The present invention has been made in view of the above problems, and an object of the present invention is to provide a method for road surface covering work even when an excavated groove having a curved portion in the width direction of the road surface is formed on the road surface. To provide a road surface lining unit for width change that enables road surface lining work with reduced burden on workers.
Another object of the present invention is to provide a width-changing road lining unit that is capable of sufficiently exhibiting an earth retaining effect in road lining work.

前記課題は、本発明の幅変更用路面覆工ユニットによれば、路面に対して該路面の幅方向において屈曲部を有する掘削溝を形成して行う工事の路面覆工作業に用いられる路面覆工ユニットであって、前記掘削溝の幅方向の側方部分において前記掘削溝の延出方向に沿ってそれぞれ配置され、前記掘削溝の屈曲部を間に挟む位置にある第1山留め部材及び第2山留め部材と、前記掘削溝の屈曲部の側方部分に設けられ、前記掘削溝の幅方向に沿って延出し、前記第1山留め部材及び前記第2山留め部材の双方の端部同士を連結する幅変更部材と、を備えていること、により解決される。
上記構成により、路面に対して路面の幅方向に屈曲部を有する掘削溝を形成した場合であっても、路面覆工作業において当該屈曲部分に対する山留め効果を発揮しながら、従来よりも作業者の負担を軽減した路面覆工ユニットを実現することができる。
According to the road surface lining unit for changing the width of the present invention, the road surface lining unit used in the road surface lining work is performed by forming an excavated groove having a curved portion in the width direction of the road surface. a first mountain retaining member and a first retaining member, which are arranged along the extending direction of the excavated groove at lateral portions in the width direction of the excavated groove, and are positioned to sandwich the bent portion of the excavated groove therebetween; a two-mountain retaining member, which is provided at a side portion of the bent portion of the excavated groove, extends along the width direction of the excavated groove, and connects end portions of both the first mountain retaining member and the second mountain retaining member; and a width changing member that
With the above configuration, even when an excavated groove having a curved portion in the width direction of the road surface is formed with respect to the road surface, the effect of retaining the curved portion in the road surface lining work is exhibited. A road surface lining unit with reduced burden can be realized.

このとき、前記第1山留め部材及び前記第2山留め部材を含む複数の山留め部材を備え、該複数の山留部材は、前記掘削溝の幅方向の両側部分において前記掘削溝の延出方向に沿って複数並ぶように配置されていると良い。
上記構成により、路面に対して幅方向に屈曲部を有する掘削溝を形成した場合であっても、路面覆工作業において山留め効果を十分に発揮することが可能な路面覆工ユニットを実現できる。
At this time, a plurality of mountain retaining members including the first mountain retaining member and the second mountain retaining member are provided, and the plurality of mountain retaining members extend in the extending direction of the excavated groove at both side portions in the width direction of the excavated groove. It is preferable that they are arranged so that a plurality of them are lined up along the line.
With the above configuration, it is possible to realize a road surface lining unit capable of sufficiently exhibiting an earth retaining effect in road surface lining work even when an excavated groove having a bent portion in the width direction is formed with respect to the road surface.

このとき、前記山留め部材は、前記掘削溝の延出方向に長尺な部材であって、前記掘削溝の側方部分に沿うように配置される縦壁と、該縦壁の下端部分から前記掘削溝の幅方向の中央側に向かって延出する底壁と、前記山留め部材の延出方向の端部分に設けられ、前記縦壁及び前記底壁の双方に当接した位置に配置される横壁と、を有し、前記幅変更部材は、前記第1山留め部材及び前記第2山留め部材の双方の前記横壁の外側面同士を連結していると良い。
上記構成により、シンプルな配置、形状で、掘削溝の屈曲部に対して山留め部材及び幅変更部材を設置可能な路面覆工ユニットとなる。
At this time, the mountain retaining member is a member elongated in the extending direction of the excavated groove, and includes a vertical wall arranged along the side portion of the excavated groove and a lower end portion of the vertical wall extending from the vertical wall. A bottom wall extending toward the center in the width direction of the excavated groove, and an end portion of the mountain retaining member in the extending direction, and arranged at a position in contact with both the vertical wall and the bottom wall. and a lateral wall, wherein the width changing member preferably connects outer surfaces of the lateral walls of both the first mountain retaining member and the second mountain retaining member.
With the above configuration, the road lining unit can be installed with a simple arrangement and shape, and the mountain retaining member and the width changing member can be installed on the bent portion of the excavated groove.

このとき、前記幅変更部材は、前記掘削溝の屈曲部の側方部分に沿うように配置される本体プレート部を有し、該本体プレート部は、前記第1山留め部材及び前記第2山留め部材の双方の前記縦壁に対して上下方向に沿って当接するように配置されていると良い。
上記構成により、掘削溝の幅方向の両側部分、及び屈曲部の側方部分において、山留め部材及び幅変更部材が隙間なく配置されるため、掘削溝の幅方向の側方から土砂崩れや陥没が生じることを一層防止することができる(山留め効果を十分に発揮することができる)。
At this time, the width changing member has a body plate portion arranged along the side portion of the bent portion of the excavated groove, and the body plate portion includes the first mountain retaining member and the second mountain retaining member. It is good to arrange|position so that it may contact|abut along an up-down direction with respect to the said vertical wall of both sides.
With the above configuration, since the mountain retaining member and the width changing member are arranged without gaps at both side portions in the width direction of the excavated groove and at the side portions of the bent portion, landslides and depressions occur from the lateral sides in the width direction of the excavated groove. can be further prevented (the mountain-stopping effect can be sufficiently exhibited).

このとき、前記幅変更部材は、前記本体プレート部から前記掘削溝の幅方向の中央側に向かって張り出すように延出する補助プレート部を有し、該補助プレート部は、前記本体プレート部に取り付けられる一端部と、前記第1山留め部材及び前記第2山留め部材のうちいずれか一方に取り付けられる他端部と、を有していると良い。
また、前記第1山留め部材が、前記第2山留め部材よりも前記掘削溝の幅方向において外側に位置するとき、前記本体プレート部は、前記第1山留め部材の前記横壁の外側面に当接するように取り付けられ、前記補助プレート部の前記他端部は、前記第2山留部材の前記横壁の外側面に当接するように取り付けられると良い。
上記構成により、作業者が、シンプルな構成で山留め部材及び幅変更部材を隙間なく配置することができる。また作業者が、第1山留部材、第2山留部材それぞれに対する幅変更部材(補助プレート部含む)の取り付け作業を掘削溝の中央側から実施し易くなる。そのため、作業者が取り付け位置を目視確認し易くなり、かつ、取り付け作業スペースを確保し易くなる。
At this time, the width changing member has an auxiliary plate portion extending from the main body plate portion so as to protrude toward the center side in the width direction of the excavated groove, and the auxiliary plate portion is the main body plate portion. and the other end attached to either one of the first mountain retaining member and the second mountain retaining member.
Further, when the first mountain retaining member is located outside the second mountain retaining member in the width direction of the excavated groove, the main body plate portion contacts the outer surface of the lateral wall of the first mountain retaining member. and the other end of the auxiliary plate portion is preferably attached so as to abut against the outer surface of the lateral wall of the second mountain retaining member.
With the above configuration, the operator can arrange the mountain retaining member and the width changing member with a simple configuration without gaps. In addition, the operator can easily perform the work of attaching the width changing member (including the auxiliary plate portion) to each of the first earth retaining member and the second earth retaining member from the center side of the excavated groove. Therefore, it becomes easier for the operator to visually confirm the mounting position and to secure the mounting work space.

このとき、前記本体プレート部は、連結プレートであって、前記補助プレート部は、前記連結プレートとは別体で設けられた補助プレートであると良い。
上記構成により、幅変更部材の設計の自由度が広がり、よりシンプルな形状を実現することができる。
At this time, the main body plate portion may be a connecting plate, and the auxiliary plate portion may be an auxiliary plate provided separately from the connecting plate.
With the above configuration, the degree of freedom in designing the width changing member is increased, and a simpler shape can be realized.

このとき、前記幅変更部材は、前記第1山留め部材及び前記第2山留め部材の双方の端部に締結部材によって締結されていると良い。
上記構成により、作業者が、第1山留部材、第2山留部材それぞれに対する幅変更部材の取り付け作業をより効率良く実施することができる。
At this time, the width changing member may be fastened to both ends of the first mountain retaining member and the second mountain retaining member by fastening members.
With the above configuration, the operator can more efficiently perform the work of attaching the width changing member to each of the first mountain retaining member and the second mountain retaining member.

本発明によれば、路面に対して路面の幅方向に屈曲部を有する掘削溝を形成した場合であっても、路面覆工作業において作業者の負担を軽減した路面覆工作業を可能とする幅変更用路面覆工ユニットを提供することができる。
また、路面覆工作業において山留め効果を十分に発揮することが可能な幅変更用路面覆工ユニットを提供することができる。
According to the present invention, even when an excavated groove having a curved portion in the width direction of the road surface is formed in the road surface, the road surface lining work can be performed with a reduced burden on the operator. A width changing road lining unit can be provided.
Further, it is possible to provide a width-changing road surface lining unit that can sufficiently exert an earth retaining effect in road surface lining work.

本実施形態の路面覆工ユニットを用いた路面覆工構造を示す図である。It is a figure which shows the road surface lining structure using the road surface lining unit of this embodiment. 縦置き工法で路面覆工ユニットを用いたときの施工イメージを示す図である。It is a figure which shows the construction image when using a road surface lining unit by a vertical construction method. 一対の山留め部材が設置された様子を示す斜視図である。It is a perspective view which shows a mode that a pair of mountain stop member was installed. 山留め端部部材が組み付けられた様子を示す斜視図である。It is a perspective view which shows a mode that the mountain stop end member was assembled|attached. 幅変更部材が組み付けられた様子を示す斜視図である。FIG. 11 is a perspective view showing a state in which width changing members are assembled; 一対の山留め部材が組み付けられた様子を示す斜視図である。FIG. 4 is a perspective view showing a state in which a pair of mountain retaining members are assembled; 図6Aの要部拡大図である。6B is an enlarged view of a main part of FIG. 6A; FIG. 受桁が組み付けられた様子を示す斜視図である。It is a perspective view which shows a mode that the receiving beam was assembled|attached. 覆工板が組み付けられた様子を示す斜視図である。It is a perspective view which shows a mode that the covering board was assembled|attached. 山留め端部部材が組みつけられた様子を示す斜視図である。It is a perspective view which shows a mode that the mountain stop end member was assembled|attached. 路面覆工ユニットの組み付けが完了した状態を示す斜視図である。FIG. 4 is a perspective view showing a state in which the road surface lining unit has been assembled. 縦置き工法における路面覆工ユニットの一例を示す上面図である。It is a top view which shows an example of the road surface lining unit in a vertical installation method. 縦置き工法における路面覆工ユニットの一例を示す上面図である。It is a top view which shows an example of the road surface lining unit in a vertical installation method. 横置き工法における路面覆工ユニットの一例を示す上面図である。It is a top view which shows an example of the road surface lining unit in a horizontal construction method. 横置き工法における路面覆工ユニットの一例を示す上面図である。It is a top view which shows an example of the road surface lining unit in a horizontal construction method.

以下、本発明の実施形態に係る幅変更用路面覆工ユニット(以下、路面覆工ユニットという。)について図1~図12A、Bを参照しながら説明する。
本実施形態は、路面に対して路面の幅方向に屈曲部を有する掘削溝を形成して行う工事の路面覆工作業に用いられる路面覆工ユニットであって、掘削溝の幅方向の両側部分において掘削溝の延出方向に沿って複数並ぶように配置される複数の山留め部材と、掘削溝の屈曲部の側方部分に配置され、掘削溝の幅方向に沿って延出し、屈曲部を間に挟む位置にある第1山留め部材及び第2山留め部材の双方の端部同士を連結する幅変更部材と、を備えていることを特徴とする路面覆工ユニットの発明に関するものである。
Hereinafter, a width-changing road lining unit (hereinafter referred to as a road lining unit) according to an embodiment of the present invention will be described with reference to FIGS. 1 to 12A and 12B.
This embodiment is a road surface lining unit used for road surface lining work in a construction work in which an excavated groove having a curved portion in the width direction of the road surface is formed in the road surface, and both sides of the excavated groove in the width direction A plurality of mountain retaining members arranged in a row along the extending direction of the excavated groove, and a side portion of the bent portion of the excavated groove, extending along the width direction of the excavated groove, and the bent portion. The present invention relates to a road lining unit characterized by comprising a width changing member that connects the ends of both the first mountain retaining member and the second mountain retaining member that are sandwiched between them.

本実施形態の路面覆工ユニット1は、図1に示すように、路面に対して屈曲部を有する掘削溝Aを形成して行う工事、例えば、埋設管Bを地中に設置する工事(埋設工事)において路面覆工のために用いられる。
掘削溝Aとは、地面を構成する舗装層A1及び土層A2を掘削することで形成される平面視で略長方形状の溝である。
詳しく言うと、掘削溝Aは、底壁と、底壁から略垂直に立ち上がり、四方に位置する4つの側壁とを有している。4つの側壁のうち、掘削溝Aの幅方向の両側に位置する一対の側壁は、互いに対向し掘削溝Aの延出方向に沿って延びている。残りの側壁は、掘削溝Aの延出方向の一端及び他端に位置し、掘削溝Aの幅方向に沿って延びている。
また掘削溝Aは、屈曲部を有し当該屈曲部における側壁をさらに有している。
As shown in FIG. 1, the road surface lining unit 1 of the present embodiment performs construction work by forming an excavated groove A having a bent portion in the road surface, for example, construction work for installing an underground pipe B in the ground. construction) for road lining.
The excavated groove A is a substantially rectangular groove in plan view formed by excavating the pavement layer A1 and the soil layer A2 that constitute the ground.
More specifically, the excavated groove A has a bottom wall and four side walls extending substantially vertically from the bottom wall and positioned in four directions. Of the four side walls, a pair of side walls located on both sides in the width direction of the excavated groove A are opposed to each other and extend along the direction in which the excavated groove A extends. The remaining side walls are positioned at one end and the other end in the extending direction of the excavated groove A and extend along the width direction of the excavated groove A. As shown in FIG.
Further, the excavated groove A has a bend and further has side walls at the bend.

路面覆工ユニット1は、図1、図3に示すように、掘削溝Aの幅方向の両側壁において互いに対向するように配置され、掘削溝Aの延出方向に沿って複数並ぶように設置される山留め部材10と、図1、図4に示すように、掘削溝Aの延出方向の両側壁に配置され、一対の山留め部材10上に設置される山留め端部部材20と、図1、図7に示すように、掘削溝Aの延出方向の中間部分に配置され、一対の山留め部材10上に設置される受桁30と、図1、図8に示すように、山留め端部部材20及び受桁30上に設置される覆工板40と、を備えている。
また路面覆工ユニット1は、図1、図5~図6A、Bに示すように、掘削溝Aの屈曲部の側壁に設けられ、当該屈曲部を間に挟む位置に配置される第1山留め部材10(10a)及び第2山留め部材10(10b)の双方の端部同士を連結するための幅変更部材50を備えている。
なお、本実施形態は、覆工板縦置き工法における路面覆工ユニット1である。
As shown in FIGS. 1 and 3, the road surface lining units 1 are arranged so as to face each other on both side walls in the width direction of the excavated groove A, and are arranged in a plurality along the extending direction of the excavated groove A. 1 and 4, mountain retaining end members 20 arranged on both side walls in the extending direction of the excavated groove A and installed on the pair of mountain retaining members 10, and , as shown in FIG. 7, a receiving girder 30 disposed in the middle portion of the extending direction of the excavated groove A and installed on the pair of mountain retaining members 10, and as shown in FIGS. and a lining plate 40 installed on the member 20 and the receiving girder 30 .
In addition, as shown in FIGS. 1, 5 to 6A and B, the road surface lining unit 1 is provided on the side wall of the curved portion of the excavated groove A, and is arranged at a position sandwiching the curved portion. A width changing member 50 is provided for connecting the ends of both the member 10 (10a) and the second mountain retaining member 10 (10b).
In addition, this embodiment is the road surface lining unit 1 in the lining board vertical installation method.

上記構成において、路面覆工ユニット1を用いた路面覆工構造では、図1に示すように、覆工板40上面がその周囲に位置する路面と連続して設置される。
そのため、覆工板40によって掘削溝Aの開口が塞がれているときには、歩行者等は、覆工板40の上面と路面との間で躓くことなく良好に歩行することが可能である。
一方で、工事が行われるときには覆工板40が撤去され、掘削溝Aの開口が露出した状態で埋設管Bの埋設工事が行われる。具体的には、まず掘削溝Aの底壁を掘削して布掘り溝を形成する。続いて布掘り溝の両側壁に沿って矢板2を打ち込み、作業空間を確保する。対向する矢板2の間には不図示の切梁等を支保工として横架する。その後、布掘り溝の底に埋設管B設置用の基礎を打設し、当該基礎上に埋設管Bを設置する。
なお、工事中は、通行人等が掘削溝A内に転落しないように掘削溝Aの際位置に安全柵3が立設される。安全柵3は、山留め部材10に対して組み付けられる。
In the above configuration, in the road surface lining structure using the road surface lining unit 1, as shown in FIG.
Therefore, when the opening of the excavated groove A is blocked by the lining board 40, a pedestrian or the like can walk satisfactorily without stumbling between the upper surface of the lining board 40 and the road surface.
On the other hand, when the construction work is carried out, the lining plate 40 is removed, and the construction of burying the buried pipe B is carried out with the opening of the excavated groove A exposed. Specifically, first, the bottom wall of the excavated trench A is excavated to form a trench. Next, the sheet piles 2 are driven in along both side walls of the trench to secure a working space. A strut or the like (not shown) is laid horizontally between the opposing sheet piles 2 as a shoring. After that, a foundation for installation of the buried pipe B is placed at the bottom of the trench, and the buried pipe B is installed on the foundation.
During construction, a safety fence 3 is erected at the edge of the excavated trench A to prevent passers-by from falling into the excavated trench A. The safety fence 3 is attached to the mountain retaining member 10. - 特許庁

山留め部材10は、図3に示すように、掘削溝Aの幅方向の両側壁において山留め効果を発揮するための略L字型鋼材からなる部材であって、互いに隣り合う山留め部材10同士が、締結ボルト等の締結部材によって締結されている。
山留め部材10は、掘削溝Aの延出方向に長尺な部材であって、上下方向に延出し、掘削溝Aの幅方向の側壁に沿うように配置される縦壁11と、縦壁11の下端部分から掘削溝Aの幅方向の中央側に向かって延出する底壁12と、底壁12上において山留め部材10の延出方向の端部に設けられ、縦壁11及び底壁12の双方に当接した位置に配置される横壁13と、を有している。
As shown in FIG. 3, the mountain retaining members 10 are members made of a substantially L-shaped steel material for exerting a mountain retaining effect on both side walls in the width direction of the excavated groove A. It is fastened by fastening members such as fastening bolts.
The mountain retaining member 10 is a member elongated in the extending direction of the excavated groove A, extends vertically, and is arranged along the side wall of the excavated groove A in the width direction. A bottom wall 12 extending from the lower end portion of the excavated groove A toward the center side in the width direction, and a vertical wall 11 and the bottom wall 12 and a lateral wall 13 disposed at a position abutting both sides.

縦壁11は、山留め部材10の山留効果を発揮する略長方形状の壁部であって、掘削溝Aの幅方向の側壁に対して対向するように配置される。
底壁12は、山留め端部部材20及び受桁30を下方から支持する略長方形状の壁部であって、掘削溝Aの底壁上に載置される。
横壁13は、隣り合う山留め部材10同士を連結するための略台形形状の壁部であって、縦壁11及び底壁12を補強する壁部としても機能する。
横壁13の側面には複数の締結穴13aが形成されており、締結穴13aには締結ボルトが締結される。締結された締結ボルトにナットを螺合することで横壁13同士が連結され、山留め部材10同士が締結されるようになる。
山留め部材10には、その長手方向の両端部に横壁13を有するタイプと、その長手方向の一端部にのみ横壁13を有するタイプとがある。
詳しく言うと、掘削溝Aの延出方向の始端及び末端に配置される山留め部材10は、その長手方向の両端部のうち、他の山留め部材10と隣り合う側の端部にのみ横壁13を有している。一方で、掘削溝Aの延出方向の両端以外に配置される山留め部材10は、その長手方向の両端部にそれぞれ横壁13を有している。
The vertical wall 11 is a substantially rectangular wall portion that exerts the earth retaining effect of the earth retaining member 10, and is arranged so as to face the side wall of the excavated groove A in the width direction.
The bottom wall 12 is a substantially rectangular wall portion that supports the earth retaining end member 20 and the receiving girder 30 from below, and is placed on the bottom wall of the excavated trench A. As shown in FIG.
The lateral wall 13 is a substantially trapezoidal wall portion for connecting the adjacent mountain retaining members 10 , and also functions as a wall portion for reinforcing the vertical wall 11 and the bottom wall 12 .
A plurality of fastening holes 13a are formed in the side surface of the lateral wall 13, and fastening bolts are fastened to the fastening holes 13a. By screwing a nut onto the fastened fastening bolt, the lateral walls 13 are connected to each other, and the mountain retaining members 10 are fastened to each other.
The mountain retaining member 10 includes a type having lateral walls 13 at both ends in the longitudinal direction and a type having a lateral wall 13 only at one end in the longitudinal direction.
More specifically, the mountain retaining members 10 arranged at the beginning and end of the excavated groove A in the extending direction have lateral walls 13 only at the ends adjacent to the other mountain retaining members 10 among both ends in the longitudinal direction. have. On the other hand, the mountain retaining members 10 arranged at the ends other than the extending direction ends of the excavated groove A have lateral walls 13 at both ends in the longitudinal direction.

また山留め部材10は、図3に示すように、山留め部材10の延出方向に所定の間隔を空けて底壁12上に設けられ、縦壁11及び底壁12の双方に当接した位置に配置される補強部14と、山留め部材10の延出方向に所定の間隔を空けて縦壁11の前面上に設けられ、縦壁11から掘削溝Aの幅方向の中央側に向かって張り出すように配置される柵固定部15と、をさらに有している。
補強部14は、山留め効果を発揮するための縦壁11と、山留め端部部材20及び受桁30を支持するための横壁13とを補強する略台形形状の壁部である。
柵固定部15は、安全柵3を設置するための断面略V字形状の金具部分であって、そのV字形状の末端部分を縦壁11の内側面に固着することで縦壁11に固定されている。
柵固定部15には筒状の開口が形成され、当該開口に対し安全柵3の支柱を挿通することで、安全柵3が山留め部材10に組み付けられる。
As shown in FIG. 3, the mountain retaining member 10 is provided on the bottom wall 12 at a predetermined interval in the extending direction of the mountain retaining member 10, and is in contact with both the vertical wall 11 and the bottom wall 12. The reinforcing part 14 is provided on the front surface of the vertical wall 11 with a predetermined gap in the extending direction of the mountain retaining member 10, and projects from the vertical wall 11 toward the center side in the width direction of the excavated groove A. It further has a fence fixing part 15 arranged as follows.
The reinforcing portion 14 is a substantially trapezoidal wall portion that reinforces the vertical wall 11 for exerting the mountain retaining effect and the horizontal wall 13 for supporting the mountain retaining end member 20 and the receiving beam 30 .
The fence fixing part 15 is a metal part having a substantially V-shaped cross section for installing the safety fence 3, and is fixed to the vertical wall 11 by fixing the V-shaped end part to the inner surface of the vertical wall 11. It is
A tubular opening is formed in the fence fixing portion 15 , and the safety fence 3 is assembled to the mountain retaining member 10 by inserting the support of the safety fence 3 into the opening.

山留め端部部材20は、図4に示すように、掘削溝Aの延出方向の両側壁において山留め効果を発揮する鋼材であって、一対の山留め部材10の間に配置され、これら山留め部材10の底壁12上に載置されている。
山留め端部部材20は、掘削溝Aの幅方向に長尺な部材であって、上下方向に延出し、掘削溝Aの延出方向の側壁に沿うように配置される縦壁21と、縦壁21の下端部分から掘削溝Aの延出方向の中央側に向かって延出する底壁22と、山留め端部部材20の延出方向に所定の間隔を空けて底壁22上に設けられ、縦壁21及び底壁22の双方に当接した位置に配置される補強部23と、補強部23上に形成され、山留め端部部材20の延出方向に沿って延びる台座部24と、を有している。
As shown in FIG. 4, the mountain retaining end member 20 is a steel material that exerts a mountain retaining effect on both side walls in the extending direction of the excavated groove A, and is arranged between a pair of mountain retaining members 10. is placed on the bottom wall 12 of the .
The mountain retaining end member 20 is a member elongated in the width direction of the excavated groove A, extends in the vertical direction, and is arranged along the side wall of the excavated groove A in the extending direction. A bottom wall 22 extending from the lower end portion of the wall 21 toward the central side in the extending direction of the excavated groove A, and a mountain retaining end member 20 are provided on the bottom wall 22 at a predetermined interval in the extending direction. , a reinforcing portion 23 disposed at a position in contact with both the vertical wall 21 and the bottom wall 22; a base portion 24 formed on the reinforcing portion 23 and extending along the extending direction of the mountain-stop end member 20; have.

縦壁21は、山留め端部部材20の山留効果を発揮する略長方形状の壁部であって、掘削溝Aの延出方向の側壁に対して対向するように配置されている。
縦壁21の長尺方向の両端部分は、底壁22、補強部23及び台座部24よりも長尺方向の外側に一部張り出すように形成されており、それぞれ張り出した部分が、一対の山留め部材10の延出方向の外側面にそれぞれ当接するように配置されている。
底壁22及び補強部23は、それぞれ台座部24を下方から支持する壁部である。底壁22の長尺方向の両端部分が一対の山留め部材10における底壁12上に載置される。
底壁22の延出方向における両端の外側面がそれぞれ山留め部材10の縦壁11に当接するように配置されている。また、複数の補強部23のうち、山留め端部部材20の両端に設けられた一対の補強部23の外側面もまた、縦壁11に当接するように配置される。
台座部24は、覆工板40の長尺方向の端部分を下方から支持する台座部分であって、台座部24の延出方向における両端の外側面がそれぞれ山留め部材10の縦壁11に当接するように配置されている。
The vertical wall 21 is a substantially rectangular wall portion that exerts an earth retaining effect for the earth retaining end member 20, and is arranged so as to face the side wall of the excavated groove A in the extending direction.
Both end portions of the vertical wall 21 in the longitudinal direction are formed so as to partially protrude outward in the longitudinal direction from the bottom wall 22, the reinforcing portion 23 and the pedestal portion 24. They are arranged so as to abut on the outer side surface of the mountain retaining member 10 in the extending direction.
The bottom wall 22 and the reinforcing portion 23 are wall portions that support the pedestal portion 24 from below. Both ends of the bottom wall 22 in the longitudinal direction are placed on the bottom wall 12 of the pair of mountain retaining members 10 .
The outer surfaces of both ends of the bottom wall 22 in the extending direction are arranged so as to contact the vertical walls 11 of the mountain retaining member 10 respectively. Outer surfaces of a pair of reinforcing portions 23 provided at both ends of the mountain retaining end member 20 among the plurality of reinforcing portions 23 are also arranged so as to abut against the vertical wall 11 .
The pedestal portion 24 is a pedestal portion that supports the end portion of the lining plate 40 in the longitudinal direction from below, and the outer surfaces of both ends of the pedestal portion 24 in the extending direction are in contact with the vertical walls 11 of the mountain retaining member 10 respectively. placed in contact with each other.

受桁30は、図7、図8に示すように、覆工板40の長尺方向の端部分を下方から支持するH型鋼からなる部材であって、掘削溝Aの幅方向に沿って延出し、その両端部分がそれぞれ山留め部材10の底壁12上に載置されている。
また受桁30は、掘削溝Aの延出方向において、対向する山留め部材10の横壁13によって間に挟まれる位置に配置されており、かつ、受桁30の長尺方向における両端の外側面が、対向する山留め部材10の縦壁11にそれぞれ当接するように配置されている。
受桁30の上面に覆工板40の端部分を載置するときには、掘削溝Aの延出方向において隣り合う覆工板40の端部分同士がそれぞれ受桁30の上面に上半分ずつ載置される。
As shown in FIGS. 7 and 8, the receiving girder 30 is a member made of H-shaped steel that supports the end portion of the lining plate 40 in the longitudinal direction from below, and extends along the width direction of the excavated groove A. Both end portions thereof are placed on the bottom wall 12 of the mountain retaining member 10 respectively.
Further, the receiving girder 30 is arranged at a position sandwiched between the opposing lateral walls 13 of the mountain retaining members 10 in the extending direction of the excavated groove A, and the outer surfaces of both ends of the receiving girder 30 in the longitudinal direction are , are arranged so as to abut against the vertical walls 11 of the mountain retaining members 10 facing each other.
When the end portions of the lining plate 40 are placed on the upper surface of the receiving girder 30, the end portions of the lining plates 40 that are adjacent in the extending direction of the excavated groove A are placed on the upper surface of the receiving girder 30, respectively. be done.

覆工板40は、図8に示すように、矩形板状の鋼材であって、その上面が平坦面となって周囲に位置する路面と連続するように設置される。
覆工板40は、覆工板縦置き工法の場合には道路の進行方向に沿って並べられ、覆工板横置き工法の場合には道路の進行方向とは直交方向に並べられる。
本実施形態は、覆工板縦置き工法における路面覆工ユニット1を説明しているが、特に限定されることなく、覆工板横置き工法の場合であっても本路面覆工ユニット1を用いることができる。
As shown in FIG. 8, the lining plate 40 is a rectangular plate-shaped steel material, and is installed so that the upper surface thereof becomes a flat surface and is continuous with the surrounding road surface.
The lining boards 40 are arranged along the running direction of the road in the case of the vertical lining board installation method, and arranged in a direction orthogonal to the traveling direction of the road in the case of the horizontal lining board installation method.
Although this embodiment describes the road surface lining unit 1 in the lining board vertical placement method, the road lining unit 1 is not particularly limited and can be used in the case of the lining board horizontal placement method as well. can be used.

幅変更部材50は、図5、図6A、Bに示すように、掘削溝Aの屈曲部を間に挟む位置にある山留め部材10の端部同士を連結する略矩形板状の鋼材プレートであって、掘削溝Aの幅方向に長尺となるように延びている。
幅変更部材50は、掘削溝Aの屈曲部の側壁に沿うように配置される本体プレート部51と、本体プレート部51から掘削溝Aの幅方向の中央側に向かって一部張り出すように延出する補助プレート部52と、を有している。
As shown in FIGS. 5, 6A, and 6B, the width changing member 50 is a substantially rectangular steel plate that connects the ends of the mountain retaining members 10 that sandwich the bent portion of the excavated groove A. , and extends in the width direction of the excavated groove A so as to be long.
The width changing member 50 includes a body plate portion 51 arranged along the side wall of the bent portion of the excavated groove A, and a part of the body plate portion 51 projecting from the body plate portion 51 toward the central side of the excavated groove A in the width direction. and an extending auxiliary plate portion 52 .

本体プレート部51は、矩形板状の連結プレートであって、図6A、Bに示すように、掘削溝Aの幅方向に沿って延出しており、その延出方向における両端部分が、第1山留め部材10a及び第2山留め部材10bの双方の縦壁11に対して上下方向に沿って当接するように配置されている。
また、本体プレート部51の延出方向の両端部分には、それぞれ複数の締結穴51aが形成されている。
詳しく言うと、図6A、Bに示すように、第1山留め部材10aが第2山留め部材10bよりも掘削溝Aの幅方向において外側に位置するとき、本体プレート部51の前面が第1山留め部材10aの縦壁11外側面に当接し、本体プレート部51の延出方向における外側面が第2山留め部材10bの縦壁11背面に当接するように構成されている。
また、本体プレート部51の前面が第1山留め部材10aの横壁13外側面に対して当接し、当該当接した部分(締結穴51aが形成された部分)が締結部材53によって連結されている。
The body plate portion 51 is a rectangular connecting plate, and as shown in FIGS. 6A and 6B , extends along the width direction of the excavated groove A. It is arranged so as to abut against the vertical walls 11 of both the mountain retaining member 10a and the second mountain retaining member 10b along the vertical direction.
A plurality of fastening holes 51a are formed at both end portions of the body plate portion 51 in the extending direction.
More specifically, as shown in FIGS. 6A and 6B, when the first mountain retaining member 10a is located outside the second mountain retaining member 10b in the width direction of the excavated groove A, the front surface of the main body plate portion 51 is aligned with the first mountain retaining member. 10a, and the outer surface of the body plate portion 51 in the extending direction contacts the rear surface of the vertical wall 11 of the second mountain retaining member 10b.
The front surface of the body plate portion 51 abuts against the outer side surface of the lateral wall 13 of the first mountain retaining member 10 a , and the abutted portion (the portion in which the fastening hole 51 a is formed) is connected by the fastening member 53 .

補助プレート部52は、本体プレート部51とは別体で設けられた矩形板状の補助プレートであって、本体プレート部51の前面に取り付けられる一端部52aと、山留め部材10の横壁13外側面に取り付けられる他端部52bと、を有している。
詳しく言うと、図6A、Bに示すように、第1山留め部材10aが第2山留め部材10bよりも掘削溝Aの幅方向において外側に位置するとき、一端部52aが本体プレート部51のうち第2山留め部材10b側にある端部分に対して締結部材53で締結されており、他端部52bが第2山留め部材10bの横壁13外側面に対して締結部材53で締結されている。
The auxiliary plate portion 52 is a rectangular plate-shaped auxiliary plate provided separately from the main body plate portion 51, and includes one end portion 52a attached to the front surface of the main body plate portion 51 and the outer surface of the lateral wall 13 of the mountain retaining member 10. and the other end 52b attached to the .
More specifically, as shown in FIGS. 6A and 6B, when the first mountain retaining member 10a is located outside the second mountain retaining member 10b in the width direction of the excavated groove A, the one end portion 52a of the main body plate portion 51 is the first one. It is fastened with a fastening member 53 to the end portion on the side of the two-mounted retaining member 10b, and the other end portion 52b is fastened with the fastening member 53 to the outer surface of the lateral wall 13 of the second mountain-mounting member 10b.

上記構成により、路面に対して幅方向に屈曲部を有する掘削溝を形成した場合であっても、路面覆工作業において山留め効果を十分に発揮することが可能な、シンプルな構成からなる路面覆工ユニット1を提供することができる。 With the above configuration, even when an excavated groove having a curved portion in the width direction with respect to the road surface is formed, the road surface covering has a simple structure that can sufficiently exhibit the effect of retaining the earth in the road surface covering work. A working unit 1 can be provided.

<路面覆工方法の手順>
次に、路面覆工ユニット1を用いた路面覆工方法について、図2~図10に基づいて説明する。
本実施形態は、図2に示すように、縦置き工法によって覆工板40を路面の進行方向に沿って2列、計5枚並べたときの路面覆工ユニット1の施工イメージを示す図である。
なお、路面覆工ユニット1を設置する際には、予め路面に対して掘削溝を形成する工程が必要である。具体的には、路面の表層に対しカット線を形成し、当該カット線に沿って舗装層A1及びその下の土層A2を掘削し、所望の掘削溝を形成することとなる。
<Road surface lining method procedure>
Next, a road surface lining method using the road surface lining unit 1 will be described with reference to FIGS. 2 to 10. FIG.
As shown in FIG. 2, this embodiment is a diagram showing an image of construction of the road surface lining unit 1 when lining plates 40 are arranged in two rows along the traveling direction of the road surface by the vertical installation method, for a total of five sheets. be.
In addition, when installing the road surface lining unit 1, a step of forming an excavated groove in the road surface is required in advance. Specifically, a cut line is formed in the surface layer of the road surface, and the pavement layer A1 and the underlying soil layer A2 are excavated along the cut line to form a desired excavated groove.

まず、図3に示すように、掘削溝の延出方向の始端部において、その幅方向の両端部分に対し山留め部材10を互いに対向するようにそれぞれ設置する。
このとき、掘削溝の幅方向の両端部における側壁に対して縦壁11を対向させるように、一対の山留め部材10をそれぞれ設置する。
また、一対の山留め部材10それぞれの延出方向の一端部を掘削溝の延出方向の始端部に合わせるようにして、山留め部材10をそれぞれ設置する。
また、掘削溝の屈曲部がある側の山留め部材10の全長が他方の山留め部材10の全長よりも短くなるように、異なる全長からなる山留め部材10をそれぞれ設置する。
First, as shown in FIG. 3, at the starting end of the excavated groove in the extending direction, mountain retaining members 10 are installed on both ends in the width direction so as to face each other.
At this time, a pair of mountain retaining members 10 are installed so that the vertical walls 11 face the side walls at both ends in the width direction of the excavated groove.
Also, each of the mountain retaining members 10 is installed such that one end portion of each of the mountain retaining members 10 in the extending direction is aligned with the starting end portion of the excavated groove in the extending direction.
Moreover, the mountain retaining members 10 having different overall lengths are installed so that the total length of the mountain retaining member 10 on the side where the bent portion of the excavated groove is located is shorter than the total length of the other mountain retaining member 10 .

次に、図4に示すように、設置した一対の山留め部材10の間において、山留め部材10それぞれの底壁12上に山留め端部部材20を設置する。
このとき、掘削溝の延出方向の始端部における側壁に対して縦壁21を対向させるように、山留め端部部材20を設置する。
また、一対の山留め部材10の縦壁11の外側面に対し、山留め端部部材20の縦壁21前面を当接させるようにして山留め端部部材20を設置する。
Next, as shown in FIG. 4, the mountain retaining end member 20 is installed on the bottom wall 12 of each of the mountain retaining members 10 between the installed mountain retaining members 10 .
At this time, the mountain retaining end member 20 is installed so that the vertical wall 21 faces the side wall at the starting end of the excavated groove in the extending direction.
Also, the mountain retaining end member 20 is installed so that the front surface of the vertical wall 21 of the mountain retaining end member 20 is brought into contact with the outer side surfaces of the vertical walls 11 of the pair of mountain retaining members 10 .

次に、図5に示すように、一方の山留め部材10の背面に対し、幅変更部材50の外側面を当接させるようにして幅変更部材50を設置する。
このとき、掘削溝の屈曲部における側壁に対し本体プレート部51を対向させるように、幅変更部材50を設置する。
また、本体プレート部51と、山留め部材10の横壁13とを補助プレート部52によって連結させる。補助プレート部52を組み付ける際には、掘削溝の延出方向の内側から外側に向かう向きで締結部材53を締結する。
Next, as shown in FIG. 5 , the width changing member 50 is installed so that the outer side surface of the width changing member 50 is brought into contact with the back surface of one of the mountain retaining members 10 .
At this time, the width changing member 50 is installed so that the body plate portion 51 faces the side wall of the bent portion of the excavated groove.
Further, the body plate portion 51 and the lateral wall 13 of the mountain retaining member 10 are connected by the auxiliary plate portion 52 . When the auxiliary plate portion 52 is assembled, the fastening member 53 is fastened in the direction from the inside to the outside in the extending direction of the excavated groove.

次に、図6に示すように、掘削溝の延出方向に沿って並ぶように一対の山留め部材10をそれぞれ設置する。
このとき、一方の山留め部材10を幅変更部材50に対して連結させ、また、他方の山留め部材10を、隣接した山留め部材10に対して連結させるように構成する。
詳しく言うと、一方の山留め部材10の横壁13と、本体プレート部51の前面とを当接させた状態で締結部材53を締結する。また、他方の山留め部材10の横壁13と、隣接した山留め部材10の横壁13とを当接させた状態で締結部材53を締結する。
Next, as shown in FIG. 6, a pair of mountain retaining members 10 are installed so as to line up along the extending direction of the excavated groove.
At this time, one mountain retaining member 10 is connected to the width changing member 50 and the other mountain retaining member 10 is connected to the adjacent mountain retaining member 10 .
Specifically, the fastening member 53 is fastened while the lateral wall 13 of one of the mountain retaining members 10 and the front surface of the body plate portion 51 are in contact with each other. Also, the fastening member 53 is fastened while the lateral wall 13 of the other mountain retaining member 10 and the lateral wall 13 of the adjacent mountain retaining member 10 are in contact with each other.

次に、図7に示すように、1列目の全長の長い山留め部材10の底壁12上と、2列目の全長の長い山留め部材10の底壁12上とに受桁30を載置する。
このとき、掘削溝の延出方向において1列目の全長の長い山留め部材10の横壁13と、2列目の全長の長い山留め部材10の横壁13との間に挟まれるように、受桁30を載置する。
Next, as shown in FIG. 7, the receiving girders 30 are placed on the bottom wall 12 of the long mountain retaining member 10 in the first row and on the bottom wall 12 of the long mountain retaining member 10 in the second row. do.
At this time, the receiving girder 30 is sandwiched between the lateral wall 13 of the first row long mountain retaining member 10 and the lateral wall 13 of the second row long mountain retaining member 10 in the extending direction of the excavated groove. to be placed.

次に、図8に示すように、山留め端部部材20及び受桁30それぞれの上面に対して覆工板40を掘削溝の幅方向に並ぶように2枚載置する。
このとき、覆工板40の一端部を山留め端部部材20の台座部24上に載置し、かつ、覆工板40の他端部を受桁30上に載置する。特に、覆工板40を受桁30上に載置する際には、覆工板40の他端部を受桁30の短手方向における中央ラインよりも張り出さないように構成する。
Next, as shown in FIG. 8, two lining plates 40 are placed on the upper surfaces of the mountain retaining end member 20 and the receiving girder 30 so as to be aligned in the width direction of the excavated groove.
At this time, one end of the lining plate 40 is placed on the pedestal portion 24 of the mountain retaining end member 20 and the other end of the lining plate 40 is placed on the receiving girder 30 . In particular, when the lining plate 40 is placed on the support girder 30 , the other end of the lining plate 40 is configured so as not to protrude from the center line of the support girder 30 in the lateral direction.

次に、図9に示すように、掘削溝の延出方向の終端部において、一対の山留め部材10それぞれの底壁12上に山留め端部部材20を設置する。
このとき、掘削溝の延出方向の終端部における側壁に対して縦壁21を対向させるように、山留め端部部材20を設置する。
Next, as shown in FIG. 9, a mountain retaining end member 20 is installed on the bottom wall 12 of each of the pair of mountain retaining members 10 at the end of the excavated groove in the extending direction.
At this time, the mountain retaining end member 20 is installed so that the vertical wall 21 faces the side wall at the terminal end of the excavated groove in the extending direction.

最後に、図10に示すように、山留め端部部材20の台座部24及び直前に設置した受桁30それぞれの上面に覆工板40を3枚載置する。
覆工板40を載置した後には、覆工板40と幅変更部材50の間に隙間が形成されているため、当該隙間については土砂等によって埋められることとなる。
Finally, as shown in FIG. 10, three lining plates 40 are placed on the upper surfaces of the pedestal portion 24 of the mountain retaining end member 20 and the receiving girder 30 installed immediately before.
After the lining plate 40 is placed, a gap is formed between the lining plate 40 and the width changing member 50, and therefore the gap is filled with soil or the like.

なお、最後の覆工板40の設置が完了した後には、掘削溝の側壁と山留め部材10との間の隙間、及び、掘削溝の側壁と山留め端部部材20の間の隙間に土砂等を充填して、それぞれの隙間を埋める。
以上までの工程が完了した時点で路面覆工作業の全工程が完了することとなる。
すなわち、掘削溝の延出方向の始端から終端にわたって山留め部材10が構築され、かつ、掘削溝の開口が覆工板40によって塞がれるようになる。
After the installation of the last lining plate 40 is completed, the gap between the side wall of the excavated groove and the mountain retaining member 10 and the gap between the side wall of the excavated groove and the mountain retaining end member 20 are filled with earth and sand. Fill and fill each gap.
When the above steps are completed, all steps of the road surface lining work will be completed.
That is, the earth retaining member 10 is constructed from the beginning end to the end of the excavated groove in the extending direction, and the opening of the excavated groove is closed by the lining plate 40 .

<縦置き工法における路面覆工ユニットの実施形態>
本実施形態の路面覆工ユニット1を用いることで、例えば図11A、Bのように、複雑な屈曲部を有する掘削溝に対しても路面覆工構造を構築することができる。
具体的には、図11Aに示すように、掘削溝の幅方向の両側壁において掘削溝の延出方向に沿って並ぶように山留め部材10を3枚ずつ計6枚設置し、掘削溝の延出方向の始端及び終端の側壁に対し山留め端部部材20をそれぞれ1枚ずつ計2枚設置する。
また、掘削溝の延出方向の中間位置に受桁30を計2枚設置し、掘削溝の屈曲部においては幅変更部材50をそれぞれ計2枚設置することで、覆工板40を路面の進行方向に沿って3列、計8枚並べた縦置き工法による路面覆工構造を構築することができる。
同様にして、図11Bに示すような縦置き工法による路面覆工構造を構築することもできる。
<Embodiment of road lining unit in vertical installation method>
By using the road surface lining unit 1 of the present embodiment, a road surface lining structure can be constructed even for an excavated trench having complicated curved portions, as shown in FIGS. 11A and 11B, for example.
Specifically, as shown in FIG. 11A , a total of six mountain retaining members 10 are arranged three by three on both side walls of the excavated groove along the extending direction of the excavated groove. A total of two mountain-clamping end members 20 are installed on the side walls at the starting end and the terminal end in the extending direction, one for each.
In addition, a total of two receiving girders 30 are installed at an intermediate position in the extending direction of the excavated trench, and a total of two width changing members 50 are installed at the bend of the excavated trench, so that the lining plate 40 is aligned with the road surface. A road surface lining structure can be constructed by the vertical installation method in which 8 sheets are arranged in 3 rows along the direction of travel.
Similarly, a road surface lining structure can be constructed by the vertical installation method as shown in FIG. 11B.

<横置き工法における路面覆工ユニットの実施形態>
第2実施形態の路面覆工ユニット100を用いることで、例えば図12A、Bのように、横置き工法による路面覆工構造を構築することができる。
横置き工法の場合には、路面覆工ユニット100は、図12A、Bに示すように、掘削溝の幅方向の両側壁において掘削溝の延出方向に沿って並ぶように配置される山留め部材110と、掘削溝の延出方向の始端及び終端の側壁に対し配置される山留め端部プレート120と、山留め部材110に設けられた張り出し部111上に載置される覆工板40と、を備えている(より詳しくは、特開2016-14297号公報参照)。
また路面覆工ユニット100は、掘削溝の屈曲部の側壁に設けられ、当該屈曲部を間に挟む位置に配置される山留め部材110の端部同士を連結するための幅変更部材50を備えている。
<Embodiment of road surface lining unit in horizontal construction method>
By using the road surface lining unit 100 of the second embodiment, it is possible to construct a road surface lining structure by the horizontal construction method, as shown in FIGS. 12A and 12B.
In the case of the horizontal installation method, the road surface lining unit 100 is, as shown in FIGS. 110, mountain retaining end plates 120 disposed on sidewalls at the beginning and end of the excavated groove in the extending direction, and a lining plate 40 placed on an overhang 111 provided on the mountain retaining member 110. (For more details, see Japanese Patent Application Laid-Open No. 2016-14297).
Further, the road lining unit 100 includes a width changing member 50 for connecting the ends of the mountain retaining members 110 provided on the side wall of the curved portion of the excavated groove and arranged at positions sandwiching the curved portion. there is

上記構成において、図12Aに示すように、掘削溝の幅方向の両側壁において掘削溝の延出方向に沿って並ぶように山留め部材110を3枚ずつ計6枚設置し、掘削溝の延出方向の始端及び終端の側壁に対し山留め端部プレート120をそれぞれ1枚ずつ計2枚設置する。
また、掘削溝の屈曲部において幅変更部材50をそれぞれ計2枚設置することで、覆工板40を路面の進行方向とは直交する向きに沿って9列、計9枚並べた横置き工法による路面覆工構造を構築することができる。
同様にして、図12Bに示すような横置き工法による路面覆工構造を構築することもできる。
In the above configuration, as shown in FIG. 12A, a total of six mountain retaining members 110 are arranged three by three on both side walls of the excavated groove along the extension direction of the excavated groove, and the extension of the excavated groove is achieved. A total of two mountain retaining end plates 120 are installed on the side walls at the start and end of the direction.
In addition, by installing a total of two width-changing members 50 at the bent portion of the excavated groove, a total of nine lining plates 40 are arranged in nine rows along the direction orthogonal to the traveling direction of the road surface. It is possible to construct a road lining structure by
Similarly, a road surface lining structure can be constructed by the horizontal construction method as shown in FIG. 12B.

<その他の実施形態>
上記実施形態において、図1、図2に示すように、幅変更部材50は、覆工板縦置き工法による路面覆工構造において用いられているが、特に限定されることなく、図12A、Bに示すように覆工板横置き工法による路面覆工構造においても共通に用いることが可能である。
<Other embodiments>
In the above-described embodiment, as shown in FIGS. 1 and 2, the width changing member 50 is used in the road surface lining structure by the lining plate vertical placement method, but is not particularly limited, and the width changing member 50 is shown in FIGS. As shown in Fig. 1, it is possible to commonly use the road surface lining structure by the lining plate horizontal installation method.

また上記実施形態において、図5に示すように、幅変更部材50は、本体プレート部51と補助プレート部52とをそれぞれ別体で有しているが、特に限定されることなく、本体プレート部51及び補助プレート部52が一体化した部材であっても良い。 In the above-described embodiment, as shown in FIG. 5, the width changing member 50 has the main body plate portion 51 and the auxiliary plate portion 52 separately. A member in which 51 and auxiliary plate portion 52 are integrated may be used.

また上記実施形態において、図5に示すように、幅変更部材50は、山留め部材10に対し締結部材で締結されて固定されているが、特に限定されることなく、例えば締結部材の代わりに溶接する等、公知な固定手段で固定させても良い。 In the above-described embodiment, as shown in FIG. 5, the width changing member 50 is fastened and fixed to the mountain retaining member 10 with a fastening member. You may fix by well-known fixing means, such as fixing.

本実施形態では、主として本発明に係る路面覆工ユニット及び路面覆工ユニットを用いた路面覆工方法に関して説明した。
ただし、上記の実施形態は、本発明の理解を容易にするための一例に過ぎず、本発明を限定するものではない。本発明は、その趣旨を逸脱することなく、変更、改良され得ると共に、本発明にはその等価物が含まれることは勿論である。
特に、幅変更部材50の形状、配置、及び構成について、上記の実施形態にて説明したものは、あくまで一例に過ぎず、本発明を限定するものではない。
In this embodiment, the road lining unit and the road lining method using the road lining unit according to the present invention have been mainly described.
However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from its spirit, and the present invention includes equivalents thereof.
In particular, the shape, arrangement, and configuration of the width changing member 50 described in the above embodiment are merely examples, and do not limit the present invention.

1,100 (幅変更用)路面覆工ユニット
2 矢板
3 安全柵
10,110 山留め部材
10a 第1山留め部材
10b 第2山留め部材
11 縦壁
12 底壁
13 横壁
13a 締結穴
14 補強部
15 柵固定部
20 山留め端部部材
21 縦壁
22 底壁
23 補強部
24 台座部
30 受桁
40 覆工板
50 幅変更部材
51 本体プレート部
51a 締結穴
52 補助プレート部
52a 一端部
52b 他端部
53 締結部材
111 張り出し部
120 山留め端部プレート
A 掘削溝
A1 舗装層
A2 土層
B 埋設管
1,100 (for width change) Road lining unit 2 Sheet pile 3 Safety fence 10, 110 Mountain retaining member 10a First mountain retaining member 10b Second mountain retaining member 11 Vertical wall 12 Bottom wall 13 Horizontal wall 13a Fastening hole 14 Reinforcement part 15 Fence fixing part 20 Mountain retaining end member 21 Vertical wall 22 Bottom wall 23 Reinforcement portion 24 Pedestal portion 30 Receiving girder 40 Lining plate 50 Width changing member 51 Main plate portion 51a Fastening hole 52 Auxiliary plate portion 52a One end portion 52b Other end portion 53 Fastening member 111 Overhang 120 Earth retaining end plate A Excavation groove A1 Pavement layer A2 Soil layer B Buried pipe

Claims (8)

路面に対して該路面の幅方向において屈曲部を有する掘削溝を形成して行う工事の路面覆工作業に用いられる幅変更用路面覆工ユニットであって、
前記掘削溝の幅方向の側方部分において前記掘削溝の延出方向に沿ってそれぞれ配置され、前記掘削溝の屈曲部を間に挟む位置にある第1山留め部材及び第2山留め部材と、
前記掘削溝の屈曲部の側方部分に設けられ、前記掘削溝の幅方向に沿って延出し、前記第1山留め部材及び前記第2山留め部材の双方の端部同士を連結する幅変更部材と、を備えていることを特徴とする幅変更用路面覆工ユニット。
A width-changing road surface lining unit used for road surface lining work in a construction work performed by forming an excavated groove having a curved portion in the width direction of the road surface,
a first mountain retaining member and a second mountain retaining member, which are arranged along the extending direction of the excavated groove at lateral portions of the excavated groove in the width direction, and are located at positions sandwiching a bent portion of the excavated groove;
a width changing member provided at a side portion of the bent portion of the excavated groove, extending along the width direction of the excavated groove, and connecting the ends of both the first mountain retaining member and the second mountain retaining member; A width-changing road lining unit comprising:
前記第1山留め部材及び前記第2山留め部材を含む複数の山留め部材を備え、
該複数の山留部材は、前記掘削溝の幅方向の両側部分において前記掘削溝の延出方向に沿って複数並ぶように配置されていることを特徴とする請求項1に記載の幅変更用路面覆工ユニット。
a plurality of mountain retaining members including the first mountain retaining member and the second mountain retaining member;
The width change according to claim 1, wherein the plurality of mountain retaining members are arranged along the extension direction of the excavated groove on both sides in the width direction of the excavated groove. road lining unit.
前記山留め部材は、前記掘削溝の延出方向に長尺な部材であって、
前記掘削溝の側方部分に沿うように配置される縦壁と、
該縦壁の下端部分から前記掘削溝の幅方向の中央側に向かって延出する底壁と、
前記山留め部材の延出方向の端部分に設けられ、前記縦壁及び前記底壁の双方に当接した位置に配置される横壁と、を有し、
前記幅変更部材は、前記第1山留め部材及び前記第2山留め部材の双方の前記横壁の外側面同士を連結していることを特徴とする請求項2に記載の幅変更用路面覆工ユニット。
The mountain retaining member is a member elongated in the extending direction of the excavated groove,
a vertical wall arranged along a lateral portion of the excavated trench;
a bottom wall extending from the lower end portion of the vertical wall toward the central side in the width direction of the excavated groove;
a horizontal wall provided at an end portion in the extending direction of the mountain retaining member and arranged at a position in contact with both the vertical wall and the bottom wall;
3. The width-changing road lining unit according to claim 2, wherein the width-changing member connects outer surfaces of the lateral walls of both the first mountain retaining member and the second mountain retaining member.
前記幅変更部材は、前記掘削溝の屈曲部の側方部分に沿うように配置される本体プレート部を有し、
該本体プレート部は、前記第1山留め部材及び前記第2山留め部材の双方の前記縦壁に対して上下方向に沿って当接するように配置されていることを特徴とする請求項3に記載の幅変更用路面覆工ユニット。
The width changing member has a body plate portion arranged along a side portion of the bent portion of the excavated groove,
4. The body plate portion according to claim 3, wherein the body plate portion is arranged so as to contact the vertical walls of both the first mountain retaining member and the second mountain retaining member along the vertical direction. Road lining unit for width change.
前記幅変更部材は、前記本体プレート部から前記掘削溝の幅方向の中央側に向かって張り出すように延出する補助プレート部を有し、
該補助プレート部は、前記本体プレート部に取り付けられる一端部と、前記第1山留め部材及び前記第2山留め部材のうちいずれか一方に取り付けられる他端部と、を有していることを特徴とする請求項4に記載の幅変更用路面覆工ユニット。
The width changing member has an auxiliary plate portion that extends from the main plate portion so as to protrude toward the central side in the width direction of the excavated groove,
The auxiliary plate portion has one end portion attached to the main body plate portion and the other end portion attached to either one of the first mountain retaining member and the second mountain retaining member. The width-changing road lining unit according to claim 4.
前記第1山留め部材が、前記第2山留め部材よりも前記掘削溝の幅方向において外側に位置するとき、
前記本体プレート部は、前記第1山留め部材の前記横壁の外側面に当接するように取り付けられ、
前記補助プレート部の前記他端部は、前記第2山留め部材の前記横壁の外側面に当接するように取り付けられることを特徴とする請求項5に記載の幅変更用路面覆工ユニット。
When the first mountain retaining member is located outside the second mountain retaining member in the width direction of the excavated groove,
The body plate portion is attached so as to abut against the outer surface of the lateral wall of the first mountain retaining member,
6. The width-changing road lining unit according to claim 5, wherein the other end of the auxiliary plate portion is attached so as to come into contact with the outer surface of the lateral wall of the second mountain retaining member.
前記本体プレート部は、連結プレートであって、
前記補助プレート部は、前記連結プレートとは別体で設けられた補助プレートであることを特徴とする請求項5又は6に記載の幅変更用路面覆工ユニット。
The body plate portion is a connecting plate,
The width-changing road lining unit according to claim 5 or 6, wherein the auxiliary plate portion is an auxiliary plate provided separately from the connecting plate.
前記幅変更部材は、前記第1山留め部材及び前記第2山留め部材の双方の端部に締結部材によって締結されていることを特徴とする請求項1乃至7のいずれか一項に記載の幅変更用路面覆工ユニット。 The width changer according to any one of claims 1 to 7, wherein the width changing member is fastened to both ends of the first mountain retaining member and the second mountain retaining member by fastening members. road lining unit.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050141970A1 (en) 2003-12-31 2005-06-30 Glamuzina Joseph L. Earth retaining safety framework and system
JP2009156021A (en) 2007-12-03 2009-07-16 Jfe Koken Corp Lining method
JP2016011513A (en) 2014-06-27 2016-01-21 株式会社大盛工業 Earth-retaining member and road surface lining method
JP2016014297A (en) 2014-07-03 2016-01-28 株式会社大盛工業 Road surface lining method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5849204Y2 (en) * 1980-05-09 1983-11-10 日本鋼管工事株式会社 Angle adjustable lining board

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050141970A1 (en) 2003-12-31 2005-06-30 Glamuzina Joseph L. Earth retaining safety framework and system
JP2009156021A (en) 2007-12-03 2009-07-16 Jfe Koken Corp Lining method
JP2016011513A (en) 2014-06-27 2016-01-21 株式会社大盛工業 Earth-retaining member and road surface lining method
JP2016014297A (en) 2014-07-03 2016-01-28 株式会社大盛工業 Road surface lining method

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