Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High polymer grouting repair method for treating ballastless track foundation bed mud pumping
The invention discloses a high polymer grouting repair method for treating ballastless track foundation bed mud pumping, which is characterized in that residual accumulated water and mud in a foundation bed surface layer in a mud pumping disease area are squeezed and discharged in a high-pressure grouting manner, and pores in the foundation bed surface layer and a void area at the bottom of a base plate are fully filled, so that the stress condition of the foundation bed surface layer is improved; the whip effect of the track structure under the train operation load effect is relieved; and meanwhile, grouting is conducted on the junction of the side edge of the base plate and the concrete sealing layer, and rainwater is prevented from intruding into the channel. And after high polymer grouting is completed, sealing glue is adopted for sealing expansion joints in the ends of the base plates and cracks in the side edges of the base plates correspondingly, and rainwater is further prevented from invading the channel. According to the method, the supporting rigidity of the surface layer of the foundation bed in the disease area is enhanced, the stress characteristic of the track structure is improved, a rainwater invasion channel is effectively blocked finally, the long-term service performance of the repaired foundation bed is guaranteed, and the frost boiling and mud emitting diseases of the ballastless track foundation bed of the high-speed railway can be well treated.
本发明公开了一种用于治理无砟轨道基床翻浆冒泥的高聚物注浆修复方法，通过高压注浆的方式挤排出翻浆冒泥病害区基床表层内的残余积水和泥浆，并充分填充基床表层内的孔隙和底座板底部的脱空区域，改善基床表层的受力情况，减缓列车运行荷载作用下轨道结构的鞭梢效应；同时对底座板侧边与混凝土密封层交界处进行注浆，封堵雨水侵入通道。高聚物注浆完成后，采用密封胶分别对底座板端部的伸缩缝和底座板侧边的裂缝进行密封，进一步封堵雨水侵入通道。本发明方法增强了病害区基床表层的支承刚度，改善了轨道结构的受力特性，最后对雨水侵入通道进行了有效封堵，保证了修复后基床的长期服役性能，能够较好地治理高速铁路无砟轨道基床翻浆冒泥病害。
High polymer grouting repair method for treating ballastless track foundation bed mud pumping
The invention discloses a high polymer grouting repair method for treating ballastless track foundation bed mud pumping, which is characterized in that residual accumulated water and mud in a foundation bed surface layer in a mud pumping disease area are squeezed and discharged in a high-pressure grouting manner, and pores in the foundation bed surface layer and a void area at the bottom of a base plate are fully filled, so that the stress condition of the foundation bed surface layer is improved; the whip effect of the track structure under the train operation load effect is relieved; and meanwhile, grouting is conducted on the junction of the side edge of the base plate and the concrete sealing layer, and rainwater is prevented from intruding into the channel. And after high polymer grouting is completed, sealing glue is adopted for sealing expansion joints in the ends of the base plates and cracks in the side edges of the base plates correspondingly, and rainwater is further prevented from invading the channel. According to the method, the supporting rigidity of the surface layer of the foundation bed in the disease area is enhanced, the stress characteristic of the track structure is improved, a rainwater invasion channel is effectively blocked finally, the long-term service performance of the repaired foundation bed is guaranteed, and the frost boiling and mud emitting diseases of the ballastless track foundation bed of the high-speed railway can be well treated.
本发明公开了一种用于治理无砟轨道基床翻浆冒泥的高聚物注浆修复方法，通过高压注浆的方式挤排出翻浆冒泥病害区基床表层内的残余积水和泥浆，并充分填充基床表层内的孔隙和底座板底部的脱空区域，改善基床表层的受力情况，减缓列车运行荷载作用下轨道结构的鞭梢效应；同时对底座板侧边与混凝土密封层交界处进行注浆，封堵雨水侵入通道。高聚物注浆完成后，采用密封胶分别对底座板端部的伸缩缝和底座板侧边的裂缝进行密封，进一步封堵雨水侵入通道。本发明方法增强了病害区基床表层的支承刚度，改善了轨道结构的受力特性，最后对雨水侵入通道进行了有效封堵，保证了修复后基床的长期服役性能，能够较好地治理高速铁路无砟轨道基床翻浆冒泥病害。
High polymer grouting repair method for treating ballastless track foundation bed mud pumping
用于治理无砟轨道基床翻浆冒泥的高聚物注浆修复方法
WAN ZHANGBO (Autor:in) / BIAN XUECHENG (Autor:in) / ZHAO CHUANG (Autor:in) / FU HAORAN (Autor:in) / XU WEICHANG (Autor:in) / LIN WEI'AN (Autor:in) / CHEN YUNMIN (Autor:in)
24.06.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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