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Pouring type asphalt concrete lap joint structure and construction method
According to the pouring type asphalt concrete lap joint structure and the construction method, combination parts are laid on the two sides of a groove type steel rail, plain concrete is laid at the bottoms of the combination parts and serves as a cushion layer, emulsified asphalt is laid on the plain concrete layer and serves as a combination layer, and pouring type asphalt concrete is laid on the emulsified asphalt; sealant is poured above the pouring type asphalt concrete; the end face of the sealant is flush with the end face of the groove type steel rail. The plain concrete is poured to serve as the cushion layer, compared with common asphalt concrete, the water stability and the temperature stability of the cushion layer are higher, and horizontal support can be provided for the steel rail. And meanwhile, the asphalt concrete at the middle upper part is used as a flexible material, so that the adaptability to roadbed and foundation deformation or differential settlement is high. The emulsified asphalt in the middle plays a bonding role, bonding between the surface layers can be enhanced, the bottom layer plain concrete and the upper layer pouring type asphalt concrete form a whole, and therefore the service life of the pavement is prolonged.
本发明提出一种浇筑式沥青混凝土搭接结构及施工方法，在槽型钢轨的两侧铺设结合部，结合部的底部为素混凝土作为垫层，素混凝土层的上方铺设乳化沥青作为结合层，乳化沥青上方摊铺浇筑式沥青混凝土，浇筑式沥青混凝土上方灌注密封胶；密封胶的端面与槽型钢轨的端面齐平；本发明采用素混凝土浇筑作为垫层，较于普通沥青混凝土，其水稳定性和温度稳定性相较高，可以给钢轨提供水平方向支撑。同时中上部的沥青混凝土作为柔性材料，在面对路基、地基变形或不均匀沉降的适应性强。中间的乳化沥青起粘结作用，能加强面层与面层之间的粘结，使底层素混凝土和上层浇筑式沥青混凝土形成一个整体，从而延长路面的使用寿命。
Pouring type asphalt concrete lap joint structure and construction method
According to the pouring type asphalt concrete lap joint structure and the construction method, combination parts are laid on the two sides of a groove type steel rail, plain concrete is laid at the bottoms of the combination parts and serves as a cushion layer, emulsified asphalt is laid on the plain concrete layer and serves as a combination layer, and pouring type asphalt concrete is laid on the emulsified asphalt; sealant is poured above the pouring type asphalt concrete; the end face of the sealant is flush with the end face of the groove type steel rail. The plain concrete is poured to serve as the cushion layer, compared with common asphalt concrete, the water stability and the temperature stability of the cushion layer are higher, and horizontal support can be provided for the steel rail. And meanwhile, the asphalt concrete at the middle upper part is used as a flexible material, so that the adaptability to roadbed and foundation deformation or differential settlement is high. The emulsified asphalt in the middle plays a bonding role, bonding between the surface layers can be enhanced, the bottom layer plain concrete and the upper layer pouring type asphalt concrete form a whole, and therefore the service life of the pavement is prolonged.
本发明提出一种浇筑式沥青混凝土搭接结构及施工方法，在槽型钢轨的两侧铺设结合部，结合部的底部为素混凝土作为垫层，素混凝土层的上方铺设乳化沥青作为结合层，乳化沥青上方摊铺浇筑式沥青混凝土，浇筑式沥青混凝土上方灌注密封胶；密封胶的端面与槽型钢轨的端面齐平；本发明采用素混凝土浇筑作为垫层，较于普通沥青混凝土，其水稳定性和温度稳定性相较高，可以给钢轨提供水平方向支撑。同时中上部的沥青混凝土作为柔性材料，在面对路基、地基变形或不均匀沉降的适应性强。中间的乳化沥青起粘结作用，能加强面层与面层之间的粘结，使底层素混凝土和上层浇筑式沥青混凝土形成一个整体，从而延长路面的使用寿命。
Pouring type asphalt concrete lap joint structure and construction method
一种浇筑式沥青混凝土搭接结构及施工方法
HUANG CHONGWEI (author) / CAI YANG (author) / SUN YU (author) / KIM JIN (author)
2024-07-09
Patent
Electronic Resource
Chinese
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