A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-speed railway roadbed structure
The invention provides a high-speed railway subgrade structure. The high-speed railway subgrade structure comprises a railway ballast layer, a subgrade bed surface layer and a subgrade bed bottom layer from top to bottom. The foundation bed surface layer is composed of an asphalt graded broken stone layer with bearing performance and waterproof performance and a filler layer from top to bottom; the filler is selected from railway I-type graded broken stone, railway II-type graded broken stone, railway I-type graded broken stone doped with cement or railway II-type graded broken stone doped with cement; and the foundation bed bottom layer is composed of a group A of fillers and a group B of fillers. The asphalt graded broken stone layer used in the high-speed railway subgrade structure canbe used as a waterproof layer and a reinforcing layer. In addition, the asphalt graded broken stone layer can also be used as an isolation layer, and subgrade fine particles can be effectively prevented from being transferred to a railway ballast layer. According to the high-speed railway subgrade structure provided by the invention, the asphalt graded broken stone layer is used for replacing partof the filler layer on the surface layer of the subgrade bed, so that the total thickness of the whole subgrade bed structure can be reduced.
本发明提供一种高速铁路路基结构，其中，所述高速铁路路基结构由上至下包括道砟层、基床表层和基床底层；所述基床表层由上至下由具有承载性和防水性的沥青级配碎石层、填料层构成；所述填料选自铁路Ⅰ型级配碎石、铁路Ⅱ型级配碎石、掺加水泥的铁路Ⅰ型级配碎石或掺加水泥的铁路Ⅱ型级配碎石；所述基床底层由A、B组填料构成。本发明的高速铁路路基结构中使用的沥青级配碎石层可以作为防水层和强化层。此外，所述沥青级配碎石层还可以作为隔离层，可有效阻止路基细颗粒向道砟层转移。本发明提供的高速铁路路基结构，通过在基床表层使用沥青级配碎石层来替代部分填料层，可以减小整个基床结构的总厚度。
High-speed railway roadbed structure
The invention provides a high-speed railway subgrade structure. The high-speed railway subgrade structure comprises a railway ballast layer, a subgrade bed surface layer and a subgrade bed bottom layer from top to bottom. The foundation bed surface layer is composed of an asphalt graded broken stone layer with bearing performance and waterproof performance and a filler layer from top to bottom; the filler is selected from railway I-type graded broken stone, railway II-type graded broken stone, railway I-type graded broken stone doped with cement or railway II-type graded broken stone doped with cement; and the foundation bed bottom layer is composed of a group A of fillers and a group B of fillers. The asphalt graded broken stone layer used in the high-speed railway subgrade structure canbe used as a waterproof layer and a reinforcing layer. In addition, the asphalt graded broken stone layer can also be used as an isolation layer, and subgrade fine particles can be effectively prevented from being transferred to a railway ballast layer. According to the high-speed railway subgrade structure provided by the invention, the asphalt graded broken stone layer is used for replacing partof the filler layer on the surface layer of the subgrade bed, so that the total thickness of the whole subgrade bed structure can be reduced.
本发明提供一种高速铁路路基结构，其中，所述高速铁路路基结构由上至下包括道砟层、基床表层和基床底层；所述基床表层由上至下由具有承载性和防水性的沥青级配碎石层、填料层构成；所述填料选自铁路Ⅰ型级配碎石、铁路Ⅱ型级配碎石、掺加水泥的铁路Ⅰ型级配碎石或掺加水泥的铁路Ⅱ型级配碎石；所述基床底层由A、B组填料构成。本发明的高速铁路路基结构中使用的沥青级配碎石层可以作为防水层和强化层。此外，所述沥青级配碎石层还可以作为隔离层，可有效阻止路基细颗粒向道砟层转移。本发明提供的高速铁路路基结构，通过在基床表层使用沥青级配碎石层来替代部分填料层，可以减小整个基床结构的总厚度。
High-speed railway roadbed structure
一种高速铁路路基结构
YE YANGSHENG (author) / CAI DEGOU (author) / WEI SHAOWEI (author) / SHI YUEFENG (author) / HAN ZILI (author) / YAN HONGYE (author) / LOU LIANGWEI (author) / YAO JUNKAI (author) / YAO JIANPING (author) / CHEN FENG (author)
2020-06-12
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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