A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Plateau railway tunnel ballastless track bed crack prevention and control construction method
The invention relates to the technical field of railway track bed construction, in particular to a plateau railway tunnel ballastless track bed crack prevention and control construction method. Comprising the following steps: S1, reinforcement optimization; s2, optimizing the mix proportion; s3, construction of formworks and reinforcing steel bars; s4, concrete mixing transportation, pouring and vibrating construction are conducted; s5, maintenance construction; s6, track bed slab crack renovation: when the crack width is less than 0.2 mm, adopting a surface sealing method for treatment, and sealing and repairing the crack surface by polymer cement waterproof paint; when the crack width is larger than or equal to 0.2 mm and smaller than 0.5 mm, a non-pressure grouting method and a surface sealing treatment method are adopted for crack repairing; when the width of the crack is larger than or equal to 0.5 mm, a low-pressure grouting method and a surface sealing method are adopted for repairing the crack of the roadbed slab; and S7, core drilling verification. According to the method, the construction raw materials are controlled, cracks can be effectively reduced, the targeted crack treatment method is good in construction effect, secondary cracking is avoided, and the construction efficiency is improved. The method is mainly applied to ballastless track bed crack prevention and control construction.
本发明涉及铁路道床施工技术领域，更具体而言，涉及高原铁路隧道无砟道床裂纹防治施工方法。包括以下步骤：S1、配筋优化；S2、配合比优化；S3、模板及钢筋的施工；S4、混凝土拌合运输、浇筑及振捣施工；S5、养护施工；S6、道床板裂纹整治：裂纹宽度＜0.2mm时，采用表面封闭法处理，聚合物水泥防水涂料对裂纹表面封闭修补；当0.2mm≤裂纹宽度＜0.5mm时，采用无压注浆法加表面封闭处理法进行裂纹修补；当裂纹宽度≥0.5mm时，采用低压注浆法加表面封闭法进行道床板裂纹修补；S7、钻芯验证。本发明对施工原料进行控制，能够有效减少裂纹的产生，针对性的裂缝治理方法，施工效果好，避免了二次开裂，提高了施工效率。本发明主要应用于无砟道床裂纹防治施工方面。
Plateau railway tunnel ballastless track bed crack prevention and control construction method
The invention relates to the technical field of railway track bed construction, in particular to a plateau railway tunnel ballastless track bed crack prevention and control construction method. Comprising the following steps: S1, reinforcement optimization; s2, optimizing the mix proportion; s3, construction of formworks and reinforcing steel bars; s4, concrete mixing transportation, pouring and vibrating construction are conducted; s5, maintenance construction; s6, track bed slab crack renovation: when the crack width is less than 0.2 mm, adopting a surface sealing method for treatment, and sealing and repairing the crack surface by polymer cement waterproof paint; when the crack width is larger than or equal to 0.2 mm and smaller than 0.5 mm, a non-pressure grouting method and a surface sealing treatment method are adopted for crack repairing; when the width of the crack is larger than or equal to 0.5 mm, a low-pressure grouting method and a surface sealing method are adopted for repairing the crack of the roadbed slab; and S7, core drilling verification. According to the method, the construction raw materials are controlled, cracks can be effectively reduced, the targeted crack treatment method is good in construction effect, secondary cracking is avoided, and the construction efficiency is improved. The method is mainly applied to ballastless track bed crack prevention and control construction.
本发明涉及铁路道床施工技术领域，更具体而言，涉及高原铁路隧道无砟道床裂纹防治施工方法。包括以下步骤：S1、配筋优化；S2、配合比优化；S3、模板及钢筋的施工；S4、混凝土拌合运输、浇筑及振捣施工；S5、养护施工；S6、道床板裂纹整治：裂纹宽度＜0.2mm时，采用表面封闭法处理，聚合物水泥防水涂料对裂纹表面封闭修补；当0.2mm≤裂纹宽度＜0.5mm时，采用无压注浆法加表面封闭处理法进行裂纹修补；当裂纹宽度≥0.5mm时，采用低压注浆法加表面封闭法进行道床板裂纹修补；S7、钻芯验证。本发明对施工原料进行控制，能够有效减少裂纹的产生，针对性的裂缝治理方法，施工效果好，避免了二次开裂，提高了施工效率。本发明主要应用于无砟道床裂纹防治施工方面。
Plateau railway tunnel ballastless track bed crack prevention and control construction method
高原铁路隧道无砟道床裂纹防治施工方法
YANG WENBIN (author) / LI JIANJUN (author) / ZHAO XIANGPING (author) / WANG TAO (author) / GAO ZHIFENG (author) / YANG YUBIN (author) / DANG XUPING (author) / ZHANG XIAOLIANG (author) / ZHANG ZHIMIN (author) / LIU MIAO (author)
2022-06-03
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
Heavy haul railway tunnel group ballastless track and construction method thereof
| European Patent Office | 2024
Construction technology of urban railway ballastless track
| European Patent Office | 2024
High-speed railway ballastless track construction measuring method
| European Patent Office | 2020