JP2020084633A - Platform widening method - Google Patents

Platform widening method Download PDF

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JP2020084633A
JP2020084633A JP2018222352A JP2018222352A JP2020084633A JP 2020084633 A JP2020084633 A JP 2020084633A JP 2018222352 A JP2018222352 A JP 2018222352A JP 2018222352 A JP2018222352 A JP 2018222352A JP 2020084633 A JP2020084633 A JP 2020084633A
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new
platform
existing
new floor
floor
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JP7186074B2 (en
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真理子 岡田
Mariko Okada
真理子 岡田
崇 永尾
Takashi Nagao
崇 永尾
達朗 長澤
Tatsuro Nagasawa
達朗 長澤
大輔 宮元
Daisuke Miyamoto
大輔 宮元
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Shimizu Construction Co Ltd
Shimizu Corp
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Shimizu Construction Co Ltd
Shimizu Corp
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Abstract

To provide a platform widening method that enables efficient construction.SOLUTION: A platform widening method being a platform widening method in which a new platform P2 is installed adjacent to an existing platform P1, includes: a temporary placement step of temporarily placing a new floor structure member 10 of the new platform P2 on the existing platform P1 side; a support material installation step of installing a support material 20 in a new area R2 where the new platform P2 is to be installed; a new floor structure member moving step of moving the temporarily placed new floor structure member 10 to the new area R2; and a step of fixing the new floor structure member to the support material in which the new floor structure member 10 is fixed to the support material 20.SELECTED DRAWING: Figure 2

Description

本発明は、プラットホームの拡幅工法に関するものである。 The present invention relates to a method for widening a platform.

鉄道の軌道切換等に伴うプラットホーム拡幅工事では、既設の軌道上にプラットホームを構築する際、既設の軌道を閉鎖（線閉）した短時間内にプラットホームの床桁やブロック等の部材を施工する必要がある（例えば、下記の特許文献１，２参照）。従来は、線閉時間内で、床桁等の部材の搬入及び機械吊による床桁の設置を行っていた。 In the platform widening work accompanying railway track switching, etc., when constructing the platform on the existing track, it is necessary to construct the members such as floor girders and blocks of the platform within a short time when the existing track is closed (line closed). (For example, see Patent Documents 1 and 2 below). Conventionally, the members such as floor girders were carried in and the floor girders were installed by machine suspension within the line closing time.

特開２００７−９５７７号公報JP, 2007-9577, A 特開平４−８０４１０号公報JP-A-4-80410

しかしながら、限られた時間内で床桁を設置するには、揚重機械及び多くの人手が必要であり、施工面・コスト面で不利となるという問題点がある。 However, in order to install the floor girder within a limited time, a lifting machine and a lot of manpower are required, which is disadvantageous in terms of construction and cost.

そこで、本発明は、上記事情に鑑みてなされたものであり、効率的に施工可能なプラットホームの拡幅工法を提供する。 Therefore, the present invention has been made in view of the above circumstances, and provides a platform widening method that allows efficient construction.

上記目的を達成するために、本発明は以下の手段を採用している。
すなわち、本発明に係るプラットホームの拡幅工法は、既設のプラットホームに隣接して新設のプラットホームを設置するプラットホームの拡幅工法であって、前記既設のプラットホーム側に、前記新設のプラットホームの新設床構造部材を仮置きする仮置き工程と、前記新設のプラットホームが設置される新設領域に、支持材を設置する支持材設置工程と、仮置きされた前記新設床構造部材を前記新設領域に移動させる新設床構造部材移動工程と、前記新設床構造部材を前記支持材に固定する新設床構造部材の支持材への固定工程と、を備えることを特徴とする。 In order to achieve the above object, the present invention employs the following means.
That is, the widening method of the platform according to the present invention is a widening method of the platform to install a new platform adjacent to the existing platform, on the side of the existing platform, the new floor structural member of the new platform. Temporary placement step of temporarily placing, support material installation step of installing support material in the new area where the new platform is installed, and new floor structure for moving the temporarily placed new floor structural member to the new area A member moving step and a step of fixing the new floor structural member to the support member for fixing the new floor structural member to the support member are provided.

このように構成されたプラットホームの拡幅工法では、既設のプラットホーム側に新設床構造部材を仮置きしておくことで、新設床構造部材を設置する際には、新設床構造部材を移動させて、新設床構造部材を支持材に固定すればよい。よって、新設床構造部材を設置する当日の作業時間を短縮でき、効率化を図ることができる。 In the widening method of the platform configured in this way, by temporarily placing the new floor structural member on the existing platform side, when installing the new floor structural member, move the new floor structural member, The new floor structural member may be fixed to the support material. Therefore, the work time on the day of installing the new floor structural member can be shortened, and efficiency can be improved.

また、本発明に係るプラットホームの拡幅工法では、前記既設のプラットホームは、基礎に支持され複数の既設床構造部材と、該複数の既設床構造部材上に、該複数の既設床構造部材にまたがって配置された既設床面材と、を備え、前記仮置き工程では、前記新設床構造部材を前記複数の既設床構造部材の間に仮置きすることが好ましい。 Further, in the platform widening method according to the present invention, the existing platform is a plurality of existing floor structural members supported by a foundation, and on the plurality of existing floor structural members, straddling the plurality of existing floor structural members. It is preferable that the new floor structural member is temporarily placed between the plurality of existing floor structural members in the temporary placing step.

このように構成されたプラットホームの拡幅工法では、新設床構造部材を移動させる際には、新設床構造部材を新設領域に引き出せばよいため、新設床構造部材の移動を短時間且つ労力を抑えて行うことができる。また、新設床構造部材は既設床面材の下方に仮置きされるため、仮置きされた状態で既設のプラットホームを使用する際に新設床構造部材が邪魔になることがない。 In the widening method of the platform configured as described above, when moving the new floor structural member, it is sufficient to pull out the new floor structural member to the new area, so that the movement of the new floor structural member can be performed in a short time and with less labor. It can be carried out. Further, since the new floor structural member is temporarily placed below the existing floor surface material, the new floor structural member does not interfere when using the existing platform in the temporarily placed state.

また、本発明に係るプラットホームの拡幅工法は、前記新設床構造部材を前記既設のプラットホームに固定する新設床構造部材の既設プラットホームへの固定工程を備えていてもよい。 Further, the method for widening the platform according to the present invention may include a step of fixing the new floor structural member to the existing platform to fix the new floor structural member to the existing platform.

このように構成されたプラットホームの拡幅工法では、新設床構造部材は既設のプラットホームに固定されるため、新設床構造部材は安定的に支持される。 In the platform widening method thus constructed, the new floor structural member is fixed to the existing platform, so that the new floor structural member is stably supported.

また、前新設床構造部材上に、前記既設のプラットホームの高さと前記新設のプラットホームの高さとを調整するための高さ調整部材を設置する高さ調整部材設置工程と、該高さ調整部材上に、新設床面材を設置する新設床面材設置工程と、を備え、前記既設のプラットホームの上面の高さと、前記新設床面材の上面の高さとが同一になってもよい。 Further, a height adjusting member installation step of installing a height adjusting member for adjusting the height of the existing platform and the height of the new platform on the front new floor structure member, and the height adjusting member installation step. And a step of installing a new floor surface material, the height of the upper surface of the existing platform and the height of the upper surface of the new floor surface material may be the same.

このように構成されたプラットホームの拡幅工法では、高さ調整部材を設けることで、既設のプラットホームの上面の高さと新設床面材の上面の高さとが同一となる。よって、既設のプラットホームと新設のプラットホームとの間で段差がなく、使い勝手が良い。 In the platform widening method thus configured, by providing the height adjusting member, the height of the upper surface of the existing platform and the height of the upper surface of the new floor covering are the same. Therefore, there is no step between the existing platform and the new platform, which is convenient.

本発明に係るプラットホームの拡幅工法によれば、効率的に施工することができる。 According to the platform widening method of the present invention, the construction can be efficiently performed.

本発明の一実施形態に係るプラットホームの拡幅工法の新設床構造部材移動工程を説明する図である。It is a figure explaining the new floor structural member movement process of the widening method of the platform which concerns on one Embodiment of this invention. 本発明の一実施形態に係るプラットホームの拡幅工法の新設床構造部材の支持材への固定工程を説明する図である。It is a figure explaining the fixing process to the support material of the new floor structural member of the widening method of the platform which concerns on one Embodiment of this invention.

本発明の一実施形態に係るプラットホームの拡幅工法ついて、図面を用いて説明する。
本実施形態に係るプラットホームの拡幅工法は、既設のプラットホームに隣接して新設のプラットホームを設置する工事に適用されるものである。
図１は、本発明の一実施形態に係るプラットホームの拡幅工法の新設床構造部材移動工程を説明する図である。
図１に示すように、既設のプラットホームＰ１は、周知の構成であり、例えば、基礎１と、基礎１に支持された複数の既設床桁（既設床構造部材）４と、複数の既設床桁４上に、複数の既設床桁４にまたがって配置された既設床面材５と、基礎１に支持される支柱部２と、支柱部に支持される屋根部３等を有している。 A method for widening the platform according to the embodiment of the present invention will be described with reference to the drawings.
The method for widening the platform according to the present embodiment is applied to construction work in which a new platform is installed adjacent to an existing platform.
FIG. 1 is a diagram illustrating a step of moving a new floor structural member of a method for widening a platform according to an embodiment of the present invention.
As shown in FIG. 1, the existing platform P1 has a well-known configuration. For example, the foundation 1, a plurality of existing floor girders (existing floor structural members) 4 supported by the foundation 1, and a plurality of existing floor girders. 4, an existing floor surface member 5 arranged over a plurality of existing floor girders 4, a support portion 2 supported by the foundation 1, a roof portion 3 supported by the support portion, and the like are provided.

既設床桁４は、所定の水平方向に沿って配置されている。本実施形態では、既設床桁４に延在方向に沿うように、後述する新設床桁１０を引き出す引出Ｘ方向が決定されている。 The existing floor girders 4 are arranged along a predetermined horizontal direction. In this embodiment, the drawer X direction for pulling out a new floor girder 10 described later is determined so as to extend along the extension direction of the existing floor girder 4.

既設床桁４は、水平方向であって引出Ｘ方向と直交するＹ方向に沿って、間隔を有して複数配置されている。既設床桁４は、例えば鉄骨材が採用されている。 A plurality of existing floor girders 4 are arranged at intervals along the Y direction which is horizontal and is orthogonal to the drawer X direction. The existing floor girder 4 is made of, for example, a steel aggregate.

次に、プラットホームの拡幅工法について説明する。
まず、仮置き工程を行う。
上記の基礎１の上面１ｕと既設床面材５の下面４ｄとの空間（床下）Ｓに、新設床桁（新設床構造部材）１０を仮置きしておく。換言すると、新設床桁１０を複数の既設床桁４の（Ｙ方向）間に仮置きする。新設床桁１０は、例えば鉄骨材が採用されている。 Next, a method for widening the platform will be described.
First, a temporary placement process is performed.
A new floor girder (new floor structural member) 10 is temporarily placed in a space (under the floor) S between the upper surface 1u of the foundation 1 and the lower surface 4d of the existing floor surface material 5. In other words, the new floor girder 10 is temporarily placed between the plurality of existing floor girders 4 (Y direction). The new floor girder 10 is made of, for example, iron aggregate.

新設床桁１０が空間Ｓの高さに納まるように、新設床桁１０の高さを既設床桁４の高さよりも低く設定している。また、新設床桁１０の高さは既設床桁４の高さよりも低いため、新設床桁１０の１本が負担する床荷重が小さくなるように、新設床桁１０のＹ方向の配置間隔（ピッチ）を既設床桁４のピッチよりも短く設定している。例えば、既設床桁４の高さは１７５ｍｍであり、新設床桁１０の高さは１５０ｍｍである。既設床桁４のピッチは３ｍであり、新設床桁１０のピッチは２．５ｍである。 The height of the new floor girder 10 is set to be lower than the height of the existing floor girder 4 so that the new floor girder 10 fits within the height of the space S. Further, since the height of the new floor girder 10 is lower than the height of the existing floor girder 4, the spacing between the new floor girders 10 in the Y direction is set so that the floor load borne by one of the new floor girders 10 becomes small ( The pitch) is set shorter than the pitch of the existing floor girder 4. For example, the height of the existing floor girder 4 is 175 mm, and the height of the new floor girder 10 is 150 mm. The pitch of the existing floor girder 4 is 3 m, and the pitch of the new floor girder 10 is 2.5 m.

次に、支持材設置工程を行う。
新設のプラットホームＰ２が設置される新設領域Ｒ２に、支持材２０を設置する。支持材２０の上端部２０ｕは、基礎１の上面１ｕと略同一の高さに位置している。支持材２０は、地面から立設された複数の杭基礎２１と、杭基礎２１間に架設された受桁２２と、で構成されていてもよい。なお、支持材２０及び受桁２２は、鉄骨製等周知の構成である。 Next, a support material installation process is performed.
The support member 20 is installed in the new area R2 where the new platform P2 is installed. The upper end 20u of the support member 20 is located at substantially the same height as the upper surface 1u of the base 1. The support member 20 may be composed of a plurality of pile foundations 21 erected from the ground and a receiving girder 22 installed between the pile foundations 21. The support member 20 and the receiving girder 22 have a known structure such as a steel frame.

次に、新設床構造部材移動工程を行う。
仮置きされた新設床桁１０を、新設領域Ｒ２に移動させる。本実施形態では、既設のプラットホームＰ１の空間Ｓに仮置きされた新設床桁１０を、新設領域Ｒ２に引き出す。この際に、引き出した新設床桁１０を立馬Ａ等で支持しておく。 Next, a new floor structural member moving process is performed.
The temporarily placed new floor girder 10 is moved to the new area R2. In the present embodiment, the new floor girder 10 temporarily placed in the space S of the existing platform P1 is pulled out to the new area R2. At this time, the new floor girder 10 pulled out is supported by the standing horse A or the like.

次に、新設床構造部材の支持材への固定工程を行う。
図２は、プラットホームの拡幅工法の新設床構造部材の支持材への固定工程を説明する図である。
図２に示すように、新設床桁１０のうち新設領域Ｒ２側の端部１０ａを、受桁２２にボルト（不図示）等で固定する。 Next, the step of fixing the new floor structural member to the support material is performed.
FIG. 2 is a diagram illustrating a process of fixing a new floor structural member to a support member by a widening method of the platform.
As shown in FIG. 2, the end portion 10a of the newly installed floor girder 10 on the new region R2 side is fixed to the receiving girder 22 with bolts (not shown) or the like.

次に、新設床構造部材の既設プラットホームへの固定工程を行う。
新設床桁１０における既設のプラットホームＰ１側の端部１０ｂを、既設のプラットホームＰ１の既設床桁４に固定する。新設のプラットホームＰ２が仮設等の場合には、解体がしやすいように、新設床桁１０と既設床桁４とを、仮設用挟締金具Ｂ等で固定しておいてもよい。なお、新設のプラットホームＰ２が常設の場合には、新設床桁１０と既設床桁４とを、ボルトや溶接（不図示）等で固定しておいてもよい。 Next, the step of fixing the new floor structural member to the existing platform is performed.
An end 10b of the new floor girder 10 on the side of the existing platform P1 is fixed to the existing floor girder 4 of the existing platform P1. In the case where the new platform P2 is temporary or the like, the new floor girder 10 and the existing floor girder 4 may be fixed to each other with the temporary clamps B or the like so that they can be easily disassembled. When the new platform P2 is permanently installed, the new floor girder 10 and the existing floor girder 4 may be fixed with bolts or welding (not shown).

次に、高さ調整部材設置工程を行う。
新設床桁１０が空間Ｓの高さに納まるように、新設床桁１０の高さが既設床桁４の高さよりも低くなっている。この高さの差分の高さで形成された高さ調整部材１１を、新設床桁１０の上に設置する。高さ調整部材１１は、例えば鉄骨材が採用されている。 Next, a height adjusting member installation step is performed.
The height of the new floor girder 10 is lower than the height of the existing floor girder 4 so that the new floor girder 10 fits within the height of the space S. The height adjusting member 11 formed by the height of the difference in height is installed on the new floor girder 10. The height adjusting member 11 is made of, for example, a steel frame material.

次に、新設床面材設置工程を行う。
高さ調整部材１１上に、新設床面材１２を設置する。新設床面材１２の下面には、高さ調整部材１１上に設置可能な高さ調整脚（不図示）が設けられていてもよい。新設床面材１２の上面１２ｕの高さと既設床面材５の上面５ｕの高さとは、同一になっている。 Next, a new floor material installation process is performed.
The new floor covering 12 is installed on the height adjusting member 11. A height adjusting leg (not shown) that can be installed on the height adjusting member 11 may be provided on the lower surface of the new floor covering 12. The height of the upper surface 12u of the new floor surface material 12 and the height of the upper surface 5u of the existing floor surface material 5 are the same.

このように構成されたプラットホームの拡幅工法では、既設のプラットホームＰ１側に新設床桁１０を仮置きしておくことで、新設床桁１０を設置する際には、新設床桁１０を移動させて、新設床桁１０を受桁２２に固定すればよい。よって、新設床桁１０を設置する当日の作業時間を短縮でき、効率化を図ることができる。 In the platform widening method thus configured, the new floor girder 10 is temporarily placed on the side of the existing platform P1 to move the new floor girder 10 when installing the new floor girder 10. The new floor girder 10 may be fixed to the receiving girder 22. Therefore, the working time on the day of installing the new floor girder 10 can be shortened, and efficiency can be improved.

例えば、新設床桁１０を設置する前日までに、仮置き工程及び支持材設置工程までを行っておく。新設床桁１０を設置する当日には、線閉した夜間に、新設床構造部材移動工程以降の作業を行えばよい。よって、当日の夜間には、新設床桁１０を工事現場に搬入する作業が不要なため、当日の夜間の作業量及び作業時間が格段に短縮でき、効率化を図ることができる。 For example, by the day before installing the new floor girder 10, the temporary placing step and the support material installing step are performed. On the day when the new floor girder 10 is installed, the work after the new floor structural member moving step may be performed at night when the line is closed. Therefore, it is not necessary to carry in the new floor girder 10 to the construction site at night on the day, so that the work amount and work time at night on the day can be significantly reduced, and efficiency can be improved.

また、新設床桁１０を移動する際には、新設床桁１０を新設領域Ｒ２に引き出せばよいため、新設床桁１０の移動を短時間且つ労力を抑えて行うことができる。新設床桁１０を吊り上げて設置する揚重機械が不要となり、省力化を図ることができる。また、新設床桁１０は既設床面材５の下方に仮置きされるため、仮置きされた状態で既設のプラットホームＰ１を使用する際に新設床桁１０が邪魔になることがない。 Further, when the new floor girder 10 is moved, the new floor girder 10 may be pulled out to the new area R2, so that the movement of the new floor girder 10 can be performed in a short time and with less labor. A lifting machine for hoisting and installing the new floor girder 10 is not required, and labor can be saved. Further, since the new floor girder 10 is temporarily placed below the existing floor surface member 5, the new floor girder 10 does not interfere when the existing platform P1 is used in the temporarily placed state.

また、新設床桁１０は既設のプラットホームＰ１の既設床桁４に固定されるため、新設床桁１０は安定的に支持される。 Further, since the new floor girder 10 is fixed to the existing floor girder 4 of the existing platform P1, the new floor girder 10 is stably supported.

また、高さ調整部材１１を設けることで、既設のプラットホームＰ１の上面５ｕの高さと新設床面材Ｐ２の上面１２ｕの高さとが同一となる。よって、既設のプラットホームＰ１と新設のプラットホームＰ２との間で段差がなく、使い勝手が良い。 Further, by providing the height adjusting member 11, the height of the upper surface 5u of the existing platform P1 and the height of the upper surface 12u of the new floor covering P2 are the same. Therefore, there is no step between the existing platform P1 and the new platform P2, and the usability is good.

なお、上述した実施の形態において示した各構成部材の諸形状や組み合わせ等は一例であって、本発明の主旨から逸脱しない範囲において設計要求等に基づき種々変更可能である。 It should be noted that the shapes, combinations, and the like of the respective constituent members shown in the above-described embodiments are examples, and can be variously modified based on design requirements and the like without departing from the spirit of the present invention.

例えば、上記に示す実施形態では、新設床桁１０は既設のプラットホームＰ１の床下の空間Ｓに仮置きされているが、本発明はこれに限られず、設置スペースがあれば既設のプラットホームＰ１上に仮置きしておいてもよい。 For example, in the above-described embodiment, the new floor girder 10 is temporarily placed in the space S under the floor of the existing platform P1, but the present invention is not limited to this, and if there is an installation space, it can be placed on the existing platform P1. You may leave it temporarily.

また、上記に示す実施形態では、新設床桁１０は既設のプラットホームＰ１の既設床桁４に固定されているが、本発明はこれに限られない。既設のプラットホームＰ１側にも、新設領域Ｒ２と同様に支持材を設置して、新設床桁１０の既設のプラットホームＰ１側を支持材に固定する構成であってもよい。 Further, in the above-described embodiment, the new floor girder 10 is fixed to the existing floor girder 4 of the existing platform P1, but the present invention is not limited to this. A support member may be installed on the existing platform P1 side similarly to the new area R2, and the existing platform P1 side of the new floor girder 10 may be fixed to the support member.

また、新設領域Ｒ２に既設の軌道が配置されていてもよい。この場合には、既設の軌道を覆うように新設のプラットホームＰ１が設置されるため、既設の軌道を撤去する必要がない。 Further, an existing track may be arranged in the new area R2. In this case, since the new platform P1 is installed so as to cover the existing track, it is not necessary to remove the existing track.

１…基礎
４…既設床桁（既設床構造部材）
５…既設床面材
１０…新設床桁（新設床構造部材）
１１…高さ調整部材
１２…新設床面材
２０…支持材
２１…杭基礎
２２…受桁
Ｐ１…既設のプラットホーム
Ｐ２…新設のプラットホーム
Ｒ２…新設領域
Ｓ…空間 1... Foundation 4... Existing floor girder (existing floor structural member)
5...Existing floor surface material 10...New floor girder (new floor structural member)
11... Height adjustment member 12... New floor material 20... Support material 21... Pile foundation 22... Girder P1... Existing platform P2... New platform R2... New area S... Space

Claims (4)

既設のプラットホームに隣接して新設のプラットホームを設置するプラットホームの拡幅工法であって、
前記既設のプラットホーム側に、前記新設のプラットホームの新設床構造部材を仮置きする仮置き工程と、
前記新設のプラットホームが設置される新設領域に、支持材を設置する支持材設置工程と、
仮置きされた前記新設床構造部材を前記新設領域に移動させる新設床構造部材移動工程と、
前記新設床構造部材を前記支持材に固定する新設床構造部材の支持材への固定工程と、を備えることを特徴とするプラットホームの拡幅工法。 A widening method for a platform that installs a new platform adjacent to an existing platform,
A temporary placing step of temporarily placing a new floor structural member of the new platform on the side of the existing platform,
A support material installation step of installing a support material in a new area where the new platform is installed,
A new floor structural member moving step of moving the temporarily placed new floor structural member to the new area;
And a step of fixing the new floor structural member to the support member, the step of fixing the new floor structural member to the support member. 前記既設のプラットホームは、
基礎に支持され複数の既設床構造部材と、
該複数の既設床構造部材上に、該複数の既設床構造部材にまたがって配置された既設床面材と、を備え、
前記仮置き工程では、前記新設床構造部材を前記複数の既設床構造部材の間に仮置きすることを特徴とする請求項１に記載のプラットホームの拡幅工法。 The existing platform is
A plurality of existing floor structural members supported by the foundation,
On the plurality of existing floor structural members, an existing floor surface member arranged over the plurality of existing floor structural members,
The platform widening method according to claim 1, wherein, in the temporary placing step, the new floor structural member is temporarily placed between the plurality of existing floor structural members. 前記新設床構造部材を前記既設のプラットホームに固定する新設床構造部材の既設プラットホームへの固定工程を備えることを特徴とする請求項１または２に記載のプラットホームの拡幅工法。 The platform widening method according to claim 1 or 2, further comprising a step of fixing the new floor structural member to the existing platform to fix the new floor structural member to the existing platform. 前記新設床構造部材上に、前記既設のプラットホームの高さと前記新設のプラットホームの高さとを調整するための高さ調整部材を設置する高さ調整部材設置工程と、
該高さ調整部材上に、新設床面材を設置する新設床面材設置工程と、を備え、
前記既設のプラットホームの上面の高さと、前記新設床面材の上面の高さとが同一になることを特徴とする請求項１から３のいずれか一項に記載のプラットホームの拡幅工法。 On the new floor structural member, a height adjusting member installation step of installing a height adjusting member for adjusting the height of the existing platform and the height of the new platform,
A new floor surface material installation step of installing a new floor surface material on the height adjusting member,
4. The method for widening the platform according to claim 1, wherein the height of the upper surface of the existing platform is the same as the height of the upper surface of the new floor covering.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0480410A (en) * 1990-07-20 1992-03-13 East Japan Railway Co Method of widening platform
JP2003041517A (en) * 2001-07-30 2003-02-13 Kinki Nippon Railway Co Ltd Support structure for newly provided floor part of existing platform
JP2013064247A (en) * 2011-09-16 2013-04-11 Totetsu Kogyo Co Ltd Platform widening method and guide member

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0480410A (en) * 1990-07-20 1992-03-13 East Japan Railway Co Method of widening platform
JP2003041517A (en) * 2001-07-30 2003-02-13 Kinki Nippon Railway Co Ltd Support structure for newly provided floor part of existing platform
JP2013064247A (en) * 2011-09-16 2013-04-11 Totetsu Kogyo Co Ltd Platform widening method and guide member

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