Soil and soft rock cutting bedding structure for ballast tracks of municipal railways
The utility model belongs to the field of building of ballast track embankments of municipal railways and particularly relates to a soil and soft rock cutting bedding structure for ballast tracks of municipal railways. The structure comprises a bedding surface layer formed by graded broken stones or...
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Main Authors | , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
18.12.2013
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Subjects | |
Online Access | Get full text |
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Summary: | The utility model belongs to the field of building of ballast track embankments of municipal railways and particularly relates to a soil and soft rock cutting bedding structure for ballast tracks of municipal railways. The structure comprises a bedding surface layer formed by graded broken stones or A-group padding and a bedding bottom layer at the bottom of the bedding surface layer. The cross section formed by the bedding surface layer and the bedding bottom layer is a trapezoid with the narrow top and the wide bottom, side ditches are arranged in each of the two sides of the bedding surface layer along the length direction, the thickness of the bedding surface layer is 0.45mm-0.55mm, and the thickness of the bedding bottom layer is 1.2m-1.8m. According to the structure, reasonable technical parameters such as bedding thickness, padding and compaction standards are determined, so that the bedding line strength is enhanced, and the subgrade is solid and stable; besides, drainage side ditches are arranged in |
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Bibliography: | Application Number: CN20132409593U |