Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Operation high-speed rail ballastless track supporting layer pulverization disease treatment method
The invention discloses an operation high-speed rail ballastless track supporting layer pulverization disease treatment method. The method comprises the steps that a pulverization section supporting layer is divided into a plurality of small units according to the sleeper spacing in the line direction; the exposed concrete pulverization surface layer of each small unit supporting layer is polished by a certain thickness, and the polished supporting layer meets the rebound strength; cutting or chiseling away the pulverized supporting layer within a certain range of the lower outer side covered by the roadbed slab or the track slab until the pulverized supporting layer is flush with the surface of the polished supporting layer on the exposed surface, and cutting the outer side of the roadbed slab into a chamfer; coating an anti-stripping agent on the surface of the support layer after cutting, chiseling and polishing, erecting a formwork on the outer side of the support layer, and pouring an early strength cement-based material; and smearing a slope on the surface of the hardened early strength cement-based material by using polymer mortar, and fully filling chamfers on the outer side of the roadbed slab. The problem of concrete pulverization of the exposed supporting layer is solved in a targeted mode, the portions, prone to pulverization and difficult to treat, in a certain range of the outer side of the lower supporting layer covered by the roadbed slab or the track slab are treated together, and the durability of the repairing layer is improved.
本发明公开了一种运营高铁无砟轨道支承层粉化病害处治方法，包括：将粉化地段支撑层沿线路方向按轨枕间距划分多个小单元；对每个小单元支撑层外露混凝土粉化表层打磨一定厚度，打磨后的支撑层满足回弹强度；将道床板或轨道板覆盖下外侧一定范围内已粉化支撑层切割或凿除至与外露面已打磨支撑层表面平齐，道床板外侧切割成倒角；对切割、凿除和打磨后的支撑层表面涂抗剥落剂，在支撑层外侧支模并灌注早强水泥基材料；采用聚合物砂浆在硬化的早强水泥基材料表面抹坡，将道床板外侧倒角填充饱满。本发明不仅靶向性解决了外露支承层混凝土粉化，还将道床板或轨道板覆盖下支承层外侧一定范围内易出现粉化且难处治部位一并处理，提升了修复层的耐久性。
Operation high-speed rail ballastless track supporting layer pulverization disease treatment method
The invention discloses an operation high-speed rail ballastless track supporting layer pulverization disease treatment method. The method comprises the steps that a pulverization section supporting layer is divided into a plurality of small units according to the sleeper spacing in the line direction; the exposed concrete pulverization surface layer of each small unit supporting layer is polished by a certain thickness, and the polished supporting layer meets the rebound strength; cutting or chiseling away the pulverized supporting layer within a certain range of the lower outer side covered by the roadbed slab or the track slab until the pulverized supporting layer is flush with the surface of the polished supporting layer on the exposed surface, and cutting the outer side of the roadbed slab into a chamfer; coating an anti-stripping agent on the surface of the support layer after cutting, chiseling and polishing, erecting a formwork on the outer side of the support layer, and pouring an early strength cement-based material; and smearing a slope on the surface of the hardened early strength cement-based material by using polymer mortar, and fully filling chamfers on the outer side of the roadbed slab. The problem of concrete pulverization of the exposed supporting layer is solved in a targeted mode, the portions, prone to pulverization and difficult to treat, in a certain range of the outer side of the lower supporting layer covered by the roadbed slab or the track slab are treated together, and the durability of the repairing layer is improved.
本发明公开了一种运营高铁无砟轨道支承层粉化病害处治方法，包括：将粉化地段支撑层沿线路方向按轨枕间距划分多个小单元；对每个小单元支撑层外露混凝土粉化表层打磨一定厚度，打磨后的支撑层满足回弹强度；将道床板或轨道板覆盖下外侧一定范围内已粉化支撑层切割或凿除至与外露面已打磨支撑层表面平齐，道床板外侧切割成倒角；对切割、凿除和打磨后的支撑层表面涂抗剥落剂，在支撑层外侧支模并灌注早强水泥基材料；采用聚合物砂浆在硬化的早强水泥基材料表面抹坡，将道床板外侧倒角填充饱满。本发明不仅靶向性解决了外露支承层混凝土粉化，还将道床板或轨道板覆盖下支承层外侧一定范围内易出现粉化且难处治部位一并处理，提升了修复层的耐久性。
Operation high-speed rail ballastless track supporting layer pulverization disease treatment method
一种运营高铁无砟轨道支承层粉化病害处治方法
JIN HAO (Autor:in) / YANG YANQIANG (Autor:in) / DOU DONGBIN (Autor:in) / LI TIEJUN (Autor:in) / FENG HAO (Autor:in) / ZHOU JUN (Autor:in) / ZHANG CHI (Autor:in) / LIU JING (Autor:in) / ZHENG XINGUO (Autor:in) / YU BO (Autor:in)
24.02.2023
Patent
Elektronische Ressource
Chinesisch
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