| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for preventing collapse of ballast at a structural boundary where a structure of a subgrade and/or a rail track changes.SOLUTION: A plurality of pile bodies 20 is constructed in a row that pierces through an embankment track bed 6 in a vertical direction and reaches a ground 4, along both sides of a rail track of a first railway part 10 having a track 5 laid on a ballast bed 8, at 200 mm to 500 mm away from an edge of a sleeper. An H-steel 22 embedded in the pile body 20 has an upper edge exposed, and forms a pair of groove parts where a web of the H-steel 22 in the adjacent pile bodies 20 face each other. An outflow prevention wall part 26 (a concrete plate, for example) is inserted into the groove part from above, and a head part of the H-steel 22 is rigidly connected by a rigid connection part 28, to be connected to a support part (an anti-earth-pressure bridge abutment 14, for example) of a second railway part 16.SELECTED DRAWING: Figure 3 |
