A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Structure for preventing ballastless track roadbed contact layer from frost boiling and mud pumping and construction method
The invention discloses a structure and a construction method for preventing frost boiling and mud pumping of a ballastless track subgrade contact layer. The structure comprises a drainage reinforcement system and an inverted filter system which are arranged in a subgrade bed surface layer of a ballastless track subgrade; the drainage reinforcing system comprises a plurality of drainage column units arranged at intervals, drainage drainage pieces arranged at the bottoms of the drainage column units and blind ditches symmetrically arranged on the two sides of the surface layer of the foundation bed correspondingly, and the inverted filter system is arranged at the top of the surface layer of the foundation bed and makes contact with the top ends of the drainage column units; the drainage piece is located between the foundation bed surface layer and the foundation bed bottom layer, the middle of the drainage piece arches upwards, and the two ends of the drainage piece extend towards the two sides of the foundation bed surface layer. The drainage and drainage piece and the inverted filter system can effectively prevent fine aggregate in the foundation bed from flowing out, meanwhile, the drainage column unit and the drainage and drainage piece can play a certain role in reinforcing the surface layer of the foundation bed, the shear resistance of granular materials is improved, and therefore the problems of frost boiling and mud overflowing are solved from the source.
本发明公开了一种预防无砟轨道路基接触层翻浆冒泥的结构及施工方法，包括：设置在无砟轨道路基的基床表层内的排水加固系统和反滤系统；排水加固系统包括多个间隔设置的排水柱单元、设置在多个排水柱单元底部的排水引流件、以及分别对称设置在基床表层两侧的盲沟，反滤系统设置在基床表层的顶部且与多个排水柱单元的顶端接触，排水引流件位于基床表层与基床底层之间且中部上拱，排水引流件的两端向基床表层的两侧延伸。排水引流件和反滤系统可有效防止基床中的细骨料外流，同时排水柱单元、排水引流件，可对基床表层起到一定的加固作用，增加散粒体材料的抗剪性能，从而从源头上解决翻浆冒泥的问题。
Structure for preventing ballastless track roadbed contact layer from frost boiling and mud pumping and construction method
The invention discloses a structure and a construction method for preventing frost boiling and mud pumping of a ballastless track subgrade contact layer. The structure comprises a drainage reinforcement system and an inverted filter system which are arranged in a subgrade bed surface layer of a ballastless track subgrade; the drainage reinforcing system comprises a plurality of drainage column units arranged at intervals, drainage drainage pieces arranged at the bottoms of the drainage column units and blind ditches symmetrically arranged on the two sides of the surface layer of the foundation bed correspondingly, and the inverted filter system is arranged at the top of the surface layer of the foundation bed and makes contact with the top ends of the drainage column units; the drainage piece is located between the foundation bed surface layer and the foundation bed bottom layer, the middle of the drainage piece arches upwards, and the two ends of the drainage piece extend towards the two sides of the foundation bed surface layer. The drainage and drainage piece and the inverted filter system can effectively prevent fine aggregate in the foundation bed from flowing out, meanwhile, the drainage column unit and the drainage and drainage piece can play a certain role in reinforcing the surface layer of the foundation bed, the shear resistance of granular materials is improved, and therefore the problems of frost boiling and mud overflowing are solved from the source.
本发明公开了一种预防无砟轨道路基接触层翻浆冒泥的结构及施工方法，包括：设置在无砟轨道路基的基床表层内的排水加固系统和反滤系统；排水加固系统包括多个间隔设置的排水柱单元、设置在多个排水柱单元底部的排水引流件、以及分别对称设置在基床表层两侧的盲沟，反滤系统设置在基床表层的顶部且与多个排水柱单元的顶端接触，排水引流件位于基床表层与基床底层之间且中部上拱，排水引流件的两端向基床表层的两侧延伸。排水引流件和反滤系统可有效防止基床中的细骨料外流，同时排水柱单元、排水引流件，可对基床表层起到一定的加固作用，增加散粒体材料的抗剪性能，从而从源头上解决翻浆冒泥的问题。
Structure for preventing ballastless track roadbed contact layer from frost boiling and mud pumping and construction method
一种预防无砟轨道路基接触层翻浆冒泥的结构及施工方法
LIU BAOSEN (author) / SU QIAN (author) / LIU JINGHAO (author) / PEI YANFEI (author) / CHENG PENG (author)
2022-11-01
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
| European Patent Office | 2024
Ballastless track frost boiling disease treatment method
| European Patent Office | 2021
Ballastless track roadbed earthwork filling construction method
| European Patent Office | 2022
Ballastless track roadbed slab connecting structure and construction method
| European Patent Office | 2021