A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a method of forming a roadbed of a ballast track along with a demolition of a railway bridge laid over with a reinforced concrete roadbed.SOLUTION: A timbering 25 is assembled on the bottom surface side of an upper floor slab 12 as a reinforced concrete roadbed, an iron plate 23 is placed on the timbering 25, a plurality of single pipes 24 are interposed in a manner arranged in the direction orthogonal to the track between the iron plate 23 and the upper floor slab 12, a space from the lower end of the timbering 25 to the iron plate 23 is firmly filled with a cement-based material to form a support layer 22, and the upper floor slab 12 is split in the direction orthogonal to the track to be in a plurality of blocks 120. Any one of the blocks supported by the single pipes 24 is selected, and roadbed ballast 4 around the periphery of the selected block is removed to be pulled out in a manner sliding on the single pipes 24, and then crushed stones are introduced into a space generated by pulling out to form a crushed stone roadbed 31, and thereafter the roadbed ballast 4 is embedded back on the roadbed. These processes are sequentially performed for each block 120 supported by the single pipes 24.SELECTED DRAWING: Figure 13
【課題】鉄筋コンクリート路盤が架け渡された鉄道橋の解体にともなうバラスト軌道の路盤形成方法を提供する。【解決手段】鉄筋コンクリート路盤としての上床版１２の底面側に支保２５を組み、支保２５の上に鉄板２３を載置し、鉄板２３と上床版１２との間に複数の単管パイプ２４を軌条直交方向に並べた状態で挟み込み、支保２５の下端から鉄板２３までをセメント系材料で埋め固めて支持層２２を形成し、上床版１２を軌条直交方向に分断して複数のブロック１２０に分割する。単管パイプ２４により支持されるブロックのいずれか１つを選択して、選択したブロック周辺の道床バラスト４を除去し、単管パイプ２４の上を滑らせるようにして引き抜いた後、引き抜くことにより生じた空間に砕石を投入して砕石路盤３１を形成し、路盤上に道床バラスト４を埋め戻すことを、単管パイプ２４により支持される個々のブロック１２０ごとに順次行う。【選択図】図１３
PROBLEM TO BE SOLVED: To provide a method of forming a roadbed of a ballast track along with a demolition of a railway bridge laid over with a reinforced concrete roadbed.SOLUTION: A timbering 25 is assembled on the bottom surface side of an upper floor slab 12 as a reinforced concrete roadbed, an iron plate 23 is placed on the timbering 25, a plurality of single pipes 24 are interposed in a manner arranged in the direction orthogonal to the track between the iron plate 23 and the upper floor slab 12, a space from the lower end of the timbering 25 to the iron plate 23 is firmly filled with a cement-based material to form a support layer 22, and the upper floor slab 12 is split in the direction orthogonal to the track to be in a plurality of blocks 120. Any one of the blocks supported by the single pipes 24 is selected, and roadbed ballast 4 around the periphery of the selected block is removed to be pulled out in a manner sliding on the single pipes 24, and then crushed stones are introduced into a space generated by pulling out to form a crushed stone roadbed 31, and thereafter the roadbed ballast 4 is embedded back on the roadbed. These processes are sequentially performed for each block 120 supported by the single pipes 24.SELECTED DRAWING: Figure 13
【課題】鉄筋コンクリート路盤が架け渡された鉄道橋の解体にともなうバラスト軌道の路盤形成方法を提供する。【解決手段】鉄筋コンクリート路盤としての上床版１２の底面側に支保２５を組み、支保２５の上に鉄板２３を載置し、鉄板２３と上床版１２との間に複数の単管パイプ２４を軌条直交方向に並べた状態で挟み込み、支保２５の下端から鉄板２３までをセメント系材料で埋め固めて支持層２２を形成し、上床版１２を軌条直交方向に分断して複数のブロック１２０に分割する。単管パイプ２４により支持されるブロックのいずれか１つを選択して、選択したブロック周辺の道床バラスト４を除去し、単管パイプ２４の上を滑らせるようにして引き抜いた後、引き抜くことにより生じた空間に砕石を投入して砕石路盤３１を形成し、路盤上に道床バラスト４を埋め戻すことを、単管パイプ２４により支持される個々のブロック１２０ごとに順次行う。【選択図】図１３
METHOD OF FORMING ROADBED OF BALLAST TRACK
バラスト軌道の路盤形成方法
OBA HIROKI (author)
2018-11-08
Patent
Electronic Resource
Japanese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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