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A platform for research: civil engineering, architecture and urbanism
High speed railway roadbed structure passing through fault zone
The invention discloses a high speed railway roadbed structure passing through a fault zone. The high speed railway roadbed structure is formed by combination of a widen roadbed and a roadbed inner layering structure; a foundation settlement deformation observing system is arranged at the bottom of the widen roadbed; the road shoulder of the widen roadbed is widened to be not smaller than 1 m; the roadbed inner layering structure comprises a geogrid and a dust sealing layer which are laid in a bulk filling in a layering manner; the distance between every two layers of the geogrid is 0.3-0.6 m; the thickness of the dust sealing layer is 0.5-1.0 m. The widths of a widen side gutter platform and a widen side slope platform of the excavated roadbed structure are respectively not smaller than 3 m; the side slope gradient is reduced to be 1:1.75. The excavated roadbed structure further comprises a composite geomembrane and blind drains; the composite geomembrane is arranged on the dust sealing layer on a roadbed base; the blind drains are arranged below side gutters on two sides of the composite geogrid; the widths of the blind drains are not smaller than 1 m. The integrality of the roadbed bulk filling structure is improved, the high speed railway roadbed structure adapts to fault zone deformation, the excessive strain cracking of the roadbed in an earthquake is reduced, a line in the operation stage is guaranteed to be unblocked and safe, and the design and operation risks are reduced.
High speed railway roadbed structure passing through fault zone
The invention discloses a high speed railway roadbed structure passing through a fault zone. The high speed railway roadbed structure is formed by combination of a widen roadbed and a roadbed inner layering structure; a foundation settlement deformation observing system is arranged at the bottom of the widen roadbed; the road shoulder of the widen roadbed is widened to be not smaller than 1 m; the roadbed inner layering structure comprises a geogrid and a dust sealing layer which are laid in a bulk filling in a layering manner; the distance between every two layers of the geogrid is 0.3-0.6 m; the thickness of the dust sealing layer is 0.5-1.0 m. The widths of a widen side gutter platform and a widen side slope platform of the excavated roadbed structure are respectively not smaller than 3 m; the side slope gradient is reduced to be 1:1.75. The excavated roadbed structure further comprises a composite geomembrane and blind drains; the composite geomembrane is arranged on the dust sealing layer on a roadbed base; the blind drains are arranged below side gutters on two sides of the composite geogrid; the widths of the blind drains are not smaller than 1 m. The integrality of the roadbed bulk filling structure is improved, the high speed railway roadbed structure adapts to fault zone deformation, the excessive strain cracking of the roadbed in an earthquake is reduced, a line in the operation stage is guaranteed to be unblocked and safe, and the design and operation risks are reduced.
High speed railway roadbed structure passing through fault zone
WU LIANHAI (author) / JIAO RUILING (author) / SUN HONGWEI (author) / ZHAO RUNTAO (author) / WANG XIAODONG (author) / LI BO (author) / CHEN ZELIAN (author) / XU ZAILIANG (author) / ZHAO JIANFENG (author) / BU TONGQING (author)
2015-10-28
Patent
Electronic Resource
English
| European Patent Office | 2020