JP5276801B2 - Labor-saving track reinforcement method - Google Patents

Labor-saving track reinforcement method Download PDF

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JP5276801B2
JP5276801B2 JP2007138619A JP2007138619A JP5276801B2 JP 5276801 B2 JP5276801 B2 JP 5276801B2 JP 2007138619 A JP2007138619 A JP 2007138619A JP 2007138619 A JP2007138619 A JP 2007138619A JP 5276801 B2 JP5276801 B2 JP 5276801B2
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sleeper
filling layer
labor
ballast
steel material
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JP2008291525A (en
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啓介 山田
明之 渡邊
達 増田
寿子 小林
道敏 岩田
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East Japan Railway Co
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East Japan Railway Co
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of reinforcing a labor-saving track, which allows construction work under the track or in the vicinity of the track while the labor-saving track is left as is. <P>SOLUTION: In the method of reinforcing the labor-saving track which is constructed by fixing and connecting ballast and a sleeper to each other, steel members (10) are set at both edges of a filling layer (4) for fixing and connecting the sleeper (2) and the ballast to each other, along a track direction, and a gap between each steel member and the filling layer is connected together by an anchor bolt (11) or an adhesive. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

本発明はバラストとマクラギを固結した構造の省力化軌道の補強方法に関するものである。   The present invention relates to a method for reinforcing a labor-saving track having a structure in which ballast and sleeper are consolidated.

省力化軌道は、図８に示すように、レール１からマクラギ２を通してかかる列車荷重を支えるバラスト層３のマクラギ周辺部分を固化剤等で固めて填充層４とし、マクラギ周辺部分のバラストとマクラギを固結した構造である。このような省力化軌道において、例えば、軌道下横断工事や近接工事等により、軌道下や近接のバラストが流出した場合、填充層には鉄筋等が使用されていないため省力化軌道に変状が生じ、列車の安全運行を脅かす可能性がある。   As shown in FIG. 8, the labor-saving track is formed by solidifying the sleeper peripheral portion of the ballast layer 3 that supports the train load from the rail 1 through the sleeper 2 with a solidifying agent or the like to form the filling layer 4. It is a consolidated structure. In such a labor-saving track, for example, when under-track or nearby ballast flows out due to under-track crossing work or close-up work, the reinforcing layer is not used with reinforcing bars, etc. And may threaten the safe operation of the train.

このため、従来の省力化軌道の補強方法として、省力化軌道下または近接箇所の工事の際には、填充層を壊してバラスト軌道化し、次いで、工事桁を設置してマクラギを直接支持する補強方法を用いて工事を進め、工事終了後、工事桁を撤去して再度マクラギ周辺部分のバラストとマクラギを固結して省力化軌道化する工法が採用されている。 Therefore, as a reinforcing method of a conventional labor saving trajectory, during construction of labor saving orbit under or close position is to track ballast of breaking the HamaTakashiso, then reinforced to support the sleeper directly by installing a work digits The construction method is used, and after the construction is completed, the construction girder is removed and the ballast and sleepers around the sleeper are consolidated again to save labor.

また、道床バラストのマクラギ下を掘削し、その掘削部に不織布を敷き込み、不織布上に砕石を敷き詰めるとともに、所定の深さにレール方向に鉄筋を埋設し、その上にさらに砕石を敷き詰めて転圧し、砕石の隙間に填充材を注入して砕石間を固めて填充層とし、填充層上にマクラギ、レールを敷設するようにした省力化軌道も提案されている（特許文献１）。
特開２００３−２０６５０１号公報 In addition, drilling under sleeper of the roadbed ballast, laying non-woven fabric on the excavated part, laying crushed stone on the non-woven fabric, burying reinforcing bars in the rail direction to a predetermined depth, and laying further crushed stone on it and rolling A labor-saving track has also been proposed in which a filler is injected into a gap between crushed stones to solidify the crushed stone to form a filler layer, and sleepers and rails are laid on the filler layer (Patent Document 1).
JP 2003-206501 A

しかし、従来の省力化軌道の補強方法では、省力化軌道の填充層を一旦壊してバラスト軌道化し、工事桁を使用して工事を進め、工事終了後、工事桁を撤去して再度バラストとマクラギを固結して省力化軌道化しているため、大変な手間とコストが発生してしまっていた。
また、特許文献１に提案されている省力化軌道は、その施工のためのコストがかかりすぎるため、実用に供されていない。 However, in the conventional method of reinforcing the labor-saving track, the filling layer of the labor-saving track is temporarily broken to form a ballast track, and the work is performed using the construction girder. As a result, the labor-saving trajectory has resulted in a great deal of labor and cost.
Moreover, the labor-saving track proposed in Patent Document 1 is not put into practical use because it requires too much cost for its construction.

本発明は上記課題を解決しようとするものであり、省力化軌道を存置したままの状態で、省力化軌道下または近接箇所の工事等が行えるようにし、万一工事によりバラスト等の流出が発生した場合においても、列車運行を確保できる補強方法を提供することを目的とする。
本発明は、マクラギ周辺部のバラストとマクラギとを固結した構造の填充層を有する省力化軌道の補強方法において、填充層のマクラギ両端部のバラストを一部撤去してマクラギ両端部に軌道方向に沿って鋼材を設置するとともに、鋼材と填充層間をアンカーボルトまたは接着剤で接合して両端部の鋼材で列車荷重を受け止めるようにしたことを特徴とする。
また、本発明は、マクラギ周辺部のバラストとマクラギとを固結した構造の填充層を有する省力化軌道の補強方法において、填充層のマクラギ両端部のバラストを一部撤去してマクラギ両端部に軌道方向に沿って鋼材を設置するとともに、マクラギ下に設置した長尺鋼材で両端部の鋼材間を連結して両端部の鋼材で列車荷重を受け止めるようにしたことを特徴とする。
また、本発明は、前記長尺鋼材は、填充層の下側バラストを通して設置されることを特徴とする。
また、本発明は、前記長尺鋼材は、填充層を通して設置されることを特徴とする。
また、本発明は、マクラギ周辺部のバラストとマクラギとを固結した構造の填充層を有する省力化軌道の補強方法において、填充層のマクラギ両端部のバラストを一部撤去してマクラギ両端部に軌道方向に沿って鋼材を設置するとともに、マクラギとマクラギ間の填充層を一部撤去し、撤去した空間を通して連結用鋼材を設置し、該連結用鋼材で両端部の前記鋼材間を連結して両端部の鋼材で列車荷重を受け止めるようにしたことを特徴とする。

また、本発明は、マクラギ周辺部のバラストとマクラギとを固結した構造の填充層を有する省力化軌道の補強方法において、填充層のマクラギ両端部のバラストを一部撤去してマクラギ両端部に軌道方向に沿って鋼材を設置するとともに、填充層の下側に鋼板を設置し、鋼材及び鋼板と填充層との間のバラスト部分を固結させて鋼材及び鋼板と填充層との一体化を図り、両端部の鋼材で列車荷重を受け止めるようにしたことを特徴とする。
また、本発明は、マクラギとマクラギ間のレール下空間に、マクラギ両端部の鋼材を連結する鋼板を設置したことを特徴とする。
また、本発明は、マクラギ周辺部のバラストとマクラギとを固結した構造の填充層を有する省力化軌道の補強方法において、填充層のマクラギ両端部のバラストを一部撤去してマクラギ端面と填充層端面とをほぼ面一にしてマクラギと填充層の両端部に軌道方向に沿ってＨ型鋼材を設置し、Ｈ型鋼材のウエブ及び上下フランジでマクラギと填充層の端部を支持して両端部のＨ型鋼材で列車荷重を受け止めるようにしたことを特徴とする。
また、本発明は、マクラギ周辺部のバラストとマクラギとを固結した構造の填充層を有する省力化軌道の補強方法において、マクラギ両端部及びその下部の填充層を撤去し、露出したマクラギ両端部に軌道方向に沿ってＨ型鋼材を設置し、Ｈ型鋼材のウエブ、上フランジ及びウエブに取り付けた棚板で露出したマクラギ両端部を支持するようにして両端部のＨ型鋼材で列車荷重を受け止めるようにしたことを特徴とする。
The present invention is intended to solve the above-mentioned problems, and allows the construction under the labor-saving track or in the vicinity of the labor-saving track in the state where the labor-saving track remains in place. Even in such a case, an object is to provide a reinforcing method capable of ensuring train operation.
The present invention relates to a method for reinforcing a labor-saving orbit having a filler layer having a structure in which ballast and sleeper around a sleeper are consolidated, in which the ballast at both ends of the sleeper of the filler layer is partially removed and the direction of the track at both ends of the sleeper In addition, the steel material is installed along with the steel material and the filling layer is joined with an anchor bolt or an adhesive to receive the train load with the steel material at both ends.
Further, the present invention is a method for reinforcing a labor-saving track having a filling layer having a structure in which ballasts around the sleeper and the sleeper are consolidated, and partially removing the ballast at both ends of the sleeper of the filling layer to both ends of the sleeper. The steel material is installed along the track direction, and the steel material at both ends is connected by a long steel material installed under the sleeper and the train load is received by the steel material at both ends.
Further, the present invention is characterized in that the long steel material is installed through the lower ballast of the filling layer.
Further, the present invention is characterized in that the long steel material is installed through a filling layer.
Further, the present invention is a method for reinforcing a labor-saving track having a filling layer having a structure in which ballasts around the sleeper and the sleeper are consolidated, and partially removing the ballast at both ends of the sleeper of the filling layer to both ends of the sleeper. Install steel materials along the track direction, remove part of the filling layer between sleepers and sleepers, install connecting steel materials through the removed space, and connect the steel materials at both ends with the connecting steel materials The train load is received by steel materials at both ends.

Further, the present invention is a method for reinforcing a labor-saving track having a filling layer having a structure in which ballasts around the sleeper and the sleeper are consolidated, and partially removing the ballast at both ends of the sleeper of the filling layer to both ends of the sleeper. Install the steel material along the track direction, install the steel plate below the filling layer, and consolidate the steel material, the steel plate, and the filling layer by solidifying the steel material and the ballast part between the steel plate and the filling layer. The feature is that the train load is received by the steel materials at both ends.
Further, the present invention is characterized in that steel plates for connecting steel materials at both ends of sleepers are installed in a space under the rail between sleepers.
Further, the present invention provides a method for reinforcing a labor-saving track having a filling layer having a structure in which ballasts around the sleeper and a sleeper are consolidated, and partially removing the ballast at both ends of the sleeper of the filling layer to fill the end surfaces of the sleeper. H-type steel material is installed along the track direction at both ends of sleeper and filling layer with the layer end face being almost flush with each other, and the ends of sleeper and filling layer are supported by the web and upper and lower flanges of H-type steel material. The train load is received by the H-shaped steel material of the part.
Further, the present invention provides a method for reinforcing a labor-saving orbit having a filling layer having a structure in which ballast and sleeper are consolidated at the periphery of a sleeper, in which both ends of the sleeper and the lower filling layer are removed to expose both ends of the sleeper The H-type steel material is installed along the track direction, and the train load is applied to the H-type steel material at both ends so as to support both ends of the sleeper exposed by the H-shaped steel web, upper flange and shelf attached to the web. It is characterized by being received.

本発明は、省力化軌道を存置したままの状態でマクラギ端部に鋼材を設置して主桁とし、この主桁で省力化軌道を支えることにより、省力化軌道下または近接箇所の工事が可能となり、万一バラスト等の流出が発生した場合においても、列車運行を確保でき、省力化軌道を壊してバラスト軌道化する作業が不要になるため、手間とコストを大幅に削減することが可能となる。 In the present invention, the steel beam is installed at the end of the sleeper with the labor-saving track in place, and the main girder is used to support the labor-saving track, so that construction on or near the labor-saving track is possible. In the unlikely event of a ballast spill, the train operation can be secured and the labor-saving track can be broken to eliminate the need for a ballast track, which can greatly reduce labor and costs. Become.

以下、本発明の実施の形態について説明する。
以下の実施形態は図８に示した省力化軌道を存置したままの状態で省力化軌道下または近接箇所を工事する際などに適用するものであり、以下において、図８の説明における参照数字と同一参照数字は同一内容を示している。なお、以下の各例において、バラストを一部撤去する場合でも撤去箇所以外ではバラストは存在しているものの、説明の便宜上そのバラストについての図示は省略している。 Embodiments of the present invention will be described below.
The following embodiment is applied to the construction of a labor-saving track or in the vicinity of the labor-saving track with the labor-saving track shown in FIG. 8 in place, and in the following, reference numerals in the description of FIG. The same reference numerals indicate the same contents. In each of the following examples, even when part of the ballast is removed, the ballast is present except for the removed part, but the illustration of the ballast is omitted for convenience of explanation.

図１はマクラギ両端部に鋼材を設置し、両端部の鋼材と填充層間を接合した例を説明する図である。 省力化軌道のマクラギ２と填充層４の両端部のバラストを一部撤去し、その箇所にＨ型鋼等の鋼材１０を軌道方向に沿って設置して主桁とし、鋼材１０から填充層４に対して横方向からアンカーボルト１１を打ち込んで填充層４を支えるようにする。アンカーボルトの軌道方向設置間隔は、例えば２００ｍｍピッチ程度とする。アンカーボルトに代えて、鋼材と填充層間を接着剤により強固に接合してもよい。このような構造とすることで、レール１からマクラギ２を通して直接、または填充層４を介して伝達される垂直、水平方向の列車荷重は鋼材１０で受け止められるため、軌道下や近接箇所の工事に際して列車運行を確保することが可能である。また、マクラギ両端部のバラストを一部撤去するのみで省力化軌道は存置したままの状態であるため、省力化軌道を一旦壊してしまう従来の工法に比して手間とコストを大幅に削減することができる。   FIG. 1 is a diagram for explaining an example in which steel materials are installed at both ends of sleepers and the steel materials at both ends and a filling layer are joined. Part of the ballast on both ends of the labor-saving track sleeper 2 and the filling layer 4 is removed, and a steel material 10 such as H-shaped steel is installed along that direction along the track direction to form a main girder. On the other hand, the anchor bolt 11 is driven from the lateral direction to support the filling layer 4. The spacing between the anchor bolts in the track direction is, for example, about 200 mm pitch. Instead of the anchor bolt, the steel material and the filling layer may be firmly joined with an adhesive. With such a structure, the vertical and horizontal train loads transmitted from the rail 1 directly through the sleeper 2 or through the filling layer 4 are received by the steel material 10, so that the construction under the track or in the vicinity Train operation can be secured. In addition, since the labor-saving track remains in place by removing part of the ballast at both ends of the sleeper, the labor and cost are greatly reduced compared to the conventional method that temporarily breaks the labor-saving track. be able to.

図２はマクラギ両端部に鋼材を設置して鋼材間を連結するようにした例を説明する図である。
図２（ａ）は省力化軌道のマクラギと填充層の両端部のバラストを一部撤去し、その箇所にＨ型鋼等の鋼材１０を軌道方向に沿って設置して主桁とし、填充層４の下側のバラストを通して鉄筋、ＰＣ鋼棒、幅の狭い鋼板等の長尺鋼材１２を設置し、主桁間を連結したものである。この工法では長尺鋼材１２はバラストを通しているため工事をし易いメリットがある。
図２（ｂ）は省力化軌道のマクラギと填充層の両端部のバラストを一部撤去し、その箇所にＨ型鋼等の鋼材１０を軌道方向に沿って設置して主桁とし、填充層４を通して鉄筋、ＰＣ鋼棒等の長尺鋼材１３を設置し、主桁間を連結したものである。この工法では、長尺鋼材１３を固い填充層を通すため多少作業に手間を要するが、填充層が直接主桁で支持されるため強固な補強が得られる。 FIG. 2 is a view for explaining an example in which steel materials are installed at both ends of sleepers to connect the steel materials.
FIG. 2 (a) shows a labor saving track sleeper and a part of the ballast at both ends of the filling layer removed, and a steel material 10 such as H-shaped steel is installed along the track direction to form the main girder. A long steel material 12 such as a reinforcing steel bar, a PC steel bar, a narrow steel plate, etc. is installed through the lower ballast of the steel and the main beams are connected. In this construction method, the long steel material 12 is ballasted, so that there is an advantage that the construction is easy.
Fig. 2 (b) shows a part of the labor-saving track sleeper and part of the ballast at both ends of the filler layer, and a steel material 10 such as H-shaped steel is installed along that direction along the track direction to form a main girder. A long steel material 13 such as a reinforcing bar or a PC steel bar is installed through the main girder. In this construction method, since the long steel material 13 is passed through the hard filler layer, a little work is required, but since the filler layer is directly supported by the main girder, strong reinforcement can be obtained.

図２の工法においても長尺鋼材の軌道方向設置間隔は、例えば２００ｍｍピッチ程度とすればよい。このような構造とすることで、マクラギ及び填充層が主桁間に挟持されるので、レール１からマクラギ２を通して直接、または填充層４を介して伝達される垂直、水平方向の列車荷重は鋼材１０で受け止められ、軌道下または近接箇所の工事に際して列車運行を確保することが可能である。また、マクラギ両端部のバラストを一部撤去するのみで省力化軌道は存置したままの状態であるため、従来の工法に比して手間とコストを大幅に削減することができる。   In the construction method of FIG. 2 as well, the installation distance between the long steel materials in the track direction may be about 200 mm, for example. With this structure, sleepers and filling layers are sandwiched between main girders, so vertical and horizontal train loads transmitted from rail 1 directly through sleepers 2 or through filling layer 4 are steel materials. The train operation can be secured at the time of construction under the track or in the vicinity. In addition, the labor-saving track remains in place by removing part of the ballast at both ends of the sleeper, so that labor and cost can be greatly reduced as compared with the conventional construction method.

図３はマクラギ両端部に設置した鋼材をマクラギ間に設置した連結鋼材で連結するようにした例を説明する図である。
省力化軌道のマクラギと填充層の両端部のバラストを一部撤去し、その箇所にＨ型鋼等の鋼材１０を軌道方向に沿って設置して主桁とするのは、上記の各例と同様である。本実施形態では、マクラギとマクラギとの間の填充層を一部撤去して空間を作り、ここにＨ型鋼などの鋼材１４を配置して主桁間を連結する。連結用鋼材１４の軌道方向設置間隔は、例えば２００ｍｍピッチ程度、或いはそれより大きくてもよい。本実施例では、マクラギ間の填充層を一部撤去しているが、基本的には省力化軌道は存置したままの補強である。
このような構造とすることで、マクラギ及び填充層が主桁間に挟持され、さらに主桁間が鋼材で連結されるため強固な補強が可能である。また、マクラギとマクラギとの間の填充層を一部撤去しているが、基本的には省力化軌道は存置したままの状態であるため、従来の工法に比して手間とコストを大幅に削減することができる。 FIG. 3 is a diagram for explaining an example in which steel materials installed at both ends of sleepers are connected by connecting steel materials installed between sleepers.
It is the same as in each of the above examples that part of the labor-saving track sleeper and the ballast at both ends of the filler layer are removed, and the steel material 10 such as H-shaped steel is installed in that position along the track direction. It is. In this embodiment, a part of the filling layer between sleepers is removed to create a space, and a steel material 14 such as H-shaped steel is arranged here to connect the main beams. The installation distance between the connecting steel members 14 in the track direction may be, for example, about 200 mm pitch or larger. In this embodiment, a part of the filling layer between sleepers is removed, but basically the labor-saving orbit remains.
By adopting such a structure, the sleeper and the filling layer are sandwiched between the main girders, and further, the main girders are connected with the steel material, so that strong reinforcement is possible. In addition, a part of the filling layer between sleepers has been removed, but basically the labor-saving orbit remains, so that labor and cost are greatly reduced compared to conventional methods. Can be reduced.

図４はマクラギ端部に鋼材を設置し、填充層下部に鋼板を設置した例を説明する図である。
マクラギ２の端部及び填充層４の端部のバラストを一部撤去して軌道方向に沿ってＨ型鋼などの鋼材１０を設置して主桁とするとともに、填充層４の下部に鋼板１５を設置する。鋼板１５の設置は、例えば、填充層４をジャッキ等で持ち上げて線路直角方向に順次挿入していく、或いは線路方向に継手を有する鋼板をバラスト部分を切削しながら牽引挿入して順次繋げていく。設置した鋼板と主桁間は、継手１６で接続する。また、マクラギ端部の填充層の上面には、マクラギ端部と鋼材１０の間に鋼板１７を設置する。填充層４と鋼材１０及び鋼板１５の間は、施工時バラスト層として軌道を支え、軌道下を施工する際には、このバラスト層部分にグラウト等を施してバラスト固化層５として、鋼材１０、鋼板１５、鋼板１７、填充層４の一体化を図ることで剛性を高めるようにする。また、鋼材と鋼板との一体化程度をさらに高めるために、マクラギとマクラギの間のレール下空間に、主桁間を連結する鋼板を設置するようにしてもよい。 FIG. 4 is a diagram for explaining an example in which a steel material is installed at the end of the sleeper and a steel plate is installed below the filling layer.
A part of the ballast at the end of the sleeper 2 and the end of the filling layer 4 is removed, and a steel material 10 such as H-shaped steel is installed along the orbital direction to form a main girder, and a steel plate 15 is provided below the filling layer 4. Install. The steel plate 15 is installed, for example, by lifting the filling layer 4 with a jack or the like and sequentially inserting it in the direction perpendicular to the line, or by sequentially pulling and inserting steel plates having joints in the line direction while cutting the ballast portion. . The installed steel plate and the main beam are connected by a joint 16. A steel plate 17 is installed between the sleeper end and the steel material 10 on the upper surface of the filling layer at the end of the sleeper. Between the filling layer 4 and the steel material 10 and the steel plate 15, the track is supported as a ballast layer at the time of construction, and when performing construction under the track, the ballast layer portion is subjected to grout or the like to form the ballast solidified layer 5 as the steel material 10, By integrating the steel plate 15, the steel plate 17, and the filling layer 4, the rigidity is increased. In order to further increase the degree of integration of the steel material and the steel plate, a steel plate that connects the main girders may be installed in the space under the rail between the sleeper and the sleeper.

このような構造とすることで、鋼材、鋼板、填充層の一体化を図ることで剛性が高まって強固な補強が可能であるため、軌道下や近接箇所の工事に際して列車運行を確保することが可能であり、また、省力化軌道は存置したままの状態であるため、従来の工法に比して手間とコストを大幅に削減することができる。   By adopting such a structure, the steel material, the steel plate, and the filler layer can be integrated to increase the rigidity and enable strong reinforcement. In addition, since the labor-saving track remains in place, labor and cost can be greatly reduced as compared with the conventional construction method.

図５はマクラギ両端部に鋼材を設置して補強する例を説明する図である。
図５（ａ）は、マクラギ２の端部及び填充層４の端部のバラストを一部撤去してマクラギ端面と填充層端面とをほぼ面一にし、この両端面に軌道方向に沿ってＨ型鋼材１０を設置して主桁とする。このとき、Ｈ型鋼材のウエブ１０ａをマクラギ端面と填充層端面に接触させ、上フランジ１０ｂでマクラギ端部上面を抑え、下フランジ１０ｃで填充層端部下面を支持させる。この例では、Ｈ型鋼材１０で直接填充層を支持するので、強固な補強が可能である。
図５（ｂ）はマクラギ２の端部及びその下部の填充層を一部撤去し、露出したマクラギ端部に軌道方向に沿ってＨ型鋼材を設置し、Ｈ型鋼材のウエブ１０ａをマクラギ端面に接触させ、上フランジ１０ｂでマクラギ端部上面を抑え、ウエブ１０ａに取り付けた棚板１０ｄで露出したマクラギ端部の下面を支持させる。この例では、Ｈ型鋼材１０で直接マクラギを支持するので、強固な補強が可能である。 FIG. 5 is a view for explaining an example in which steel materials are installed and reinforced at both ends of sleepers.
FIG. 5A shows that the end of the sleeper 2 and the ballast at the end of the filling layer 4 are partially removed so that the end of the sleeper and the filling layer end face are substantially flush with each other. The mold steel 10 is installed and used as the main girder. At this time, the H-shaped steel web 10a is brought into contact with the end face of the sleeper and the end face of the filling layer, the upper face of the end of the sleeper end is suppressed by the upper flange 10b, and the lower face of the end of the filling layer is supported by the lower flange 10c. In this example, since the filling layer is directly supported by the H-shaped steel material 10, strong reinforcement is possible.
FIG. 5 (b) shows a part of the sleeper 2 and a part of the filling layer under the sleeper 2 are removed, an H-type steel material is installed along the track direction at the exposed sleeper end, and the web 10a of the H-type steel is attached to the end of the sleeper The upper flange 10b suppresses the upper surface of the sleeper end, and the exposed lower surface of the sleeper end is supported by the shelf 10d attached to the web 10a. In this example, the sleeper is directly supported by the H-shaped steel material 10, so that strong reinforcement is possible.

このように、Ｈ型鋼材で直接、填充層やマクラギを支持するので強固な補強が可能であるため、軌道下や近接箇所の工事に際して列車運行を確保することが可能であり、マクラギ端部の填充層を一部撤去しているが、基本的には省力化軌道は存置したままの状態であるため、従来の工法に比して手間とコストを大幅に削減することができる。   In this way, since the filler layer and sleepers are directly supported by the H-shaped steel material, it can be firmly reinforced, so it is possible to secure train operation during construction under the track and in the vicinity, and at the end of the sleeper Although part of the filling layer has been removed, the labor-saving orbit is still in place, so labor and cost can be greatly reduced compared to conventional methods.

図６は填充層下レール直下を鋼材で支えるようにした例を説明する図である。
填充層下側のバラストを一部撤去して軌道方向に沿って両レール直下部にＨ型鋼等の鋼材２０を設置する。この構造では鋼材で直接、填充層下側から支持するので強固な補強が可能であるため、軌道下や近接箇所の工事に際して列車運行を確保することが可能であり、填充層下側のバラストを一部撤去するだけで、省力化軌道は存置したままの状態であるため、従来の工法に比して手間とコストを大幅に削減することができる。 FIG. 6 is a diagram for explaining an example in which the steel layer is used to support the area directly below the filling layer lower rail.
A part of the ballast below the filling layer is removed, and a steel material 20 such as H-shaped steel is installed directly below both rails along the track direction. In this structure, the steel material is supported directly from the bottom of the filling layer, so strong reinforcement is possible, so it is possible to secure train operation during construction under the track and in the vicinity, and the ballast under the filling layer is reduced. The labor-saving trajectory remains in place just by removing a part, so that labor and cost can be greatly reduced compared to the conventional construction method.

図７はマクラギ上の鋼材から填充層を吊るようにした例を説明する図である。
左右レールの外側マクラギ上にレール方向に沿ってＨ型鋼等の鋼材３０を設置する。この場合鋼材高さはレール１とほぼ同じ高さにする。図示の例では、両側それぞれ２本づつの鋼材を設置しているが、１本づづでも、或いは３本づつでもよい。そして、マクラギ２とマクラギ２との間において、鋼材３０から填充層にアンカーボルト３１を打ち込んで接合し、鋼材３０からアンカーボルトで填充層４を吊るようにする。なお、レールとほぼ同じ高さの鋼材３０は左右レールの外側マクラギ上に限らず、左右レール間のマクラギ上、或いは左右レールの外側及び左右レール間のマクラギ上に設置するようにしてもよい。 FIG. 7 is a diagram for explaining an example in which the filling layer is suspended from the steel material on the sleeper.
A steel material 30 such as H-shaped steel is installed on the outer sleepers of the left and right rails along the rail direction. In this case, the height of the steel material is approximately the same as that of the rail 1. In the illustrated example, two steel materials are installed on each side, but one steel material or three steel materials may be provided. Then, between the sleeper 2 and the sleeper 2, the anchor bolt 31 is driven and joined from the steel material 30 to the filling layer, and the filling layer 4 is hung from the steel material 30 with the anchor bolt. In addition, you may make it install the steel material 30 of the height substantially the same as a rail not only on the outer sleeper of a right-and-left rail but on the sleeper between right-and-left rails, or the sleeper between the outer side of a left-right rail, and between right-and-left rails.

このようにマクラギ上の鋼材で填充層４を吊ることで、マクラギと填充層との一体化が図れて強固な補強を行うことができ、軌道下または近接箇所の工事に際して列車運行を確保することが可能である。また、この方法では、バラスト等の一部撤去もなく、省力化軌道は存置したままの状態であるため、従来の工法に比して手間とコストを大幅に削減することができる。   By suspending the filling layer 4 with the steel material on the sleeper in this way, the sleeper and the filling layer can be integrated and strong reinforcement can be performed, and train operation can be ensured during construction under or near the track. Is possible. Also, with this method, part of the ballast or the like is not removed and the labor-saving track remains in place, so that labor and cost can be greatly reduced as compared with the conventional construction method.

本発明によれば、省力化軌道を存置したままの状態で軌道下や近接箇所の工事等が行えるので産業上の利用価値は大きい。   According to the present invention, since the labor-saving track remains in place, the construction under the track or in the vicinity of the track can be performed, and thus the industrial utility value is great.

マクラギ両端部に鋼材を設置し、両端部の鋼材と填充層間を接合した例を説明する図である。It is a figure explaining the example which installed the steel materials in the sleeper both ends, and joined the steel materials and filling layer of both ends. マクラギ両端部に鋼材を設置して鋼材間を連結するようにした例を説明する図である。It is a figure explaining the example which installed steel materials in the sleeper both ends, and connected between steel materials. マクラギ両端部に設置した鋼材をマクラギ間に設置した連結鋼材で連結するようにした例を説明する図である。It is a figure explaining the example which connected the steel materials installed in the sleeper both ends with the connection steel materials installed between sleepers. マクラギ端部に鋼材を設置し、填充層下部に鋼板を設置した例を説明する図である。It is a figure explaining the example which installed the steel material in the sleeper edge part, and installed the steel plate in the filling layer lower part. マクラギ両端部に鋼材を設置して補強する例を説明する図である。It is a figure explaining the example which installs and reinforces steel materials at both ends of sleepers. 填充層下レール直下を鋼材で支えるようにした例を説明する図である。It is a figure explaining the example which supported the steel layer directly under the filling layer lower rail. マクラギ上の鋼材から填充層を吊るようにした例を説明する図である。It is a figure explaining the example which suspended the filling layer from the steel material on a sleeper. 省力化軌道を説明する図である。It is a figure explaining a labor saving orbit.

符号の説明Explanation of symbols

１…レール、２…マクラギ、３…バラスト、４…填充層、５…バラスト固化層、１０，２０，３０…Ｈ型鋼等の鋼材、１１…アンカーボルト、１２，１３…長尺鋼材、１４…連結用鋼板、１５，１７…鋼板、１６…継手、３１…アンカーボルト。 DESCRIPTION OF SYMBOLS 1 ... Rail, 2 ... Sleeper, 3 ... Ballast, 4 ... Filling layer, 5 ... Ballast solidified layer, 10, 20, 30 ... Steel materials, such as H-shaped steel, 11 ... Anchor bolt, 12, 13 ... Long steel material, 14 ... Steel plates for connection, 15, 17 ... steel plates, 16 ... joints, 31 ... anchor bolts.

Claims (9)

マクラギ周辺部のバラストとマクラギとを固結した構造の填充層を有する省力化軌道の補強方法において、填充層のマクラギ両端部のバラストを一部撤去してマクラギ両端部に軌道方向に沿って鋼材を設置するとともに、鋼材と填充層間をアンカーボルトまたは接着剤で接合して両端部の鋼材で列車荷重を受け止めるようにしたことを特徴とする省力化軌道の補強方法。 In a method for reinforcing labor-saving orbit having a filling layer with a structure in which ballast and sleeper around the sleeper are consolidated, part of the ballast at both ends of the sleeper of the filling layer is removed, and steel material along the track direction at both ends of the sleeper In addition, the steel material and the filling layer are joined with anchor bolts or an adhesive, and the train load is received by the steel material at both ends. マクラギ周辺部のバラストとマクラギとを固結した構造の填充層を有する省力化軌道の補強方法において、填充層のマクラギ両端部のバラストを一部撤去してマクラギ両端部に軌道方向に沿って鋼材を設置するとともに、マクラギ下に設置した長尺鋼材で両端部の鋼材間を連結して両端部の鋼材で列車荷重を受け止めるようにしたことを特徴とする省力化軌道の補強方法。 In a method for reinforcing labor-saving orbit having a filling layer with a structure in which ballast and sleeper around the sleeper are consolidated, part of the ballast at both ends of the sleeper of the filling layer is removed, and steel material along the track direction at both ends of the sleeper A method of reinforcing a labor-saving track, characterized in that the steel material at both ends is connected with a long steel material installed under the sleeper and the train load is received by the steel material at both ends. 前記長尺鋼材は、填充層の下側バラストを通して設置されることを特徴とする請求項２記載の省力化軌道の補強方法。 The method for reinforcing a labor-saving track according to claim 2, wherein the long steel material is installed through a lower ballast of a filling layer. 前記長尺鋼材は、填充層を通して設置されることを特徴とする請求項２記載の省力化軌道の補強方法。 The method of reinforcing a labor-saving track according to claim 2, wherein the long steel material is installed through a filling layer. マクラギ周辺部のバラストとマクラギとを固結した構造の填充層を有する省力化軌道の補強方法において、填充層のマクラギ両端部のバラストを一部撤去してマクラギ両端部に軌道方向に沿って鋼材を設置するとともに、マクラギとマクラギ間の填充層を一部撤去し、撤去した空間を通して連結用鋼材を設置し、該連結用鋼材で両端部の前記鋼材間を連結して両端部の鋼材で列車荷重を受け止めるようにしたことを特徴とする省力化軌道の補強方法。 In a method for reinforcing labor-saving orbit having a filling layer with a structure in which ballast and sleeper around the sleeper are consolidated, part of the ballast at both ends of the sleeper of the filling layer is removed, and steel material along the track direction at both ends of the sleeper In addition, a part of the filling layer between sleepers is removed, a connecting steel material is installed through the removed space, the steel materials at both ends are connected with the connecting steel materials, and the trains are connected with the steel materials at both ends. A method for reinforcing a labor-saving track characterized by receiving a load. マクラギ周辺部のバラストとマクラギとを固結した構造の填充層を有する省力化軌道の補強方法において、填充層のマクラギ両端部のバラストを一部撤去してマクラギ両端部に軌道方向に沿って鋼材を設置するとともに、填充層の下側に鋼板を設置し、鋼材及び鋼板と填充層との間のバラスト部分を固結させて鋼材及び鋼板と填充層との一体化を図り、両端部の鋼材で列車荷重を受け止めるようにしたことを特徴とする省力化軌道の補強方法。 In a method for reinforcing labor-saving orbit having a filling layer with a structure in which ballast and sleeper around the sleeper are consolidated, part of the ballast at both ends of the sleeper of the filling layer is removed, and steel material along the track direction at both ends of the sleeper In addition, the steel plate is installed below the filling layer, the ballast part between the steel material and the steel plate and the filling layer is consolidated, and the steel material, the steel plate and the filling layer are integrated, and the steel materials at both ends. A method to reinforce a labor-saving track characterized by receiving train loads at マクラギとマクラギ間のレール下空間に、マクラギ両端部の鋼材を連結する鋼板を設置したことを特徴とする請求項６記載の補強方法。 The reinforcing method according to claim 6, wherein a steel plate for connecting steel materials at both ends of the sleeper is installed in a space under the rail between the sleeper and the sleeper. マクラギ周辺部のバラストとマクラギとを固結した構造の填充層を有する省力化軌道の補強方法において、填充層のマクラギ両端部のバラストを一部撤去してマクラギ端面と填充層端面とをほぼ面一にしてマクラギと填充層の両端部に軌道方向に沿ってＨ型鋼材を設置し、Ｈ型鋼材のウエブ及び上下フランジでマクラギと填充層の端部を支持して両端部のＨ型鋼材で列車荷重を受け止めるようにしたことを特徴とする省力化軌道の補強方法。 In a method for reinforcing a labor-saving orbit having a filling layer with a structure in which the ballast around the sleeper and the sleeper are consolidated, a part of the ballast at both ends of the sleeping bed of the filling layer is partially removed so that the end surfaces of the sleeper and the filling layer end face are substantially H-type steel material is installed along the track direction at both ends of sleeper and filling layer, and the ends of sleeper and filling layer are supported by the web and upper and lower flanges of H-type steel material. A method of reinforcing a labor-saving track characterized by receiving train loads. マクラギ周辺部のバラストとマクラギとを固結した構造の填充層を有する省力化軌道の補強方法において、マクラギ両端部及びその下部の填充層を撤去し、露出したマクラギ両端部に軌道方向に沿ってＨ型鋼材を設置し、Ｈ型鋼材のウエブ、上フランジ及びウエブに取り付けた棚板で露出したマクラギ両端部を支持するようにして両端部のＨ型鋼材で列車荷重を受け止めるようにしたことを特徴とする省力化軌道の補強方法。 In a method for reinforcing labor-saving orbit having a filling layer with a structure in which the ballast and sleeper around the sleeper are consolidated, both ends of the sleeper and the lower filling layer are removed, and the exposed sleeper both ends along the track direction. Installed H-shaped steel, and supported both ends of sleepers exposed on the H-shaped steel web, upper flange, and shelf mounted on the web to receive the train load with H-shaped steel at both ends. A method for reinforcing labor-saving orbits.
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