A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a novel structure of a salinized soil roadbed in a cold and arid region, and belongs to the technical field of roadbed engineering. The roadbed structure body is composed of a first gravel packing layer, a saline water separation layer and a second gravel packing layer which are sequentially laid from top to bottom, side slopes, slope protection ways and drainage ditches are arranged on the two sides of the roadbed structure body, and the rail is laid above the first gravel packing layer. The saline water separation layer is mainly composed of a composite geomembrane and undisturbed saline soil improved by fly ash, and the doping amount of the fly ash is 10-15%. The partition layer is arranged between the two filler layers, longitudinal migration of moisture and salt in the roadbed body is blocked, and the occurrence probability of roadbed diseases is reduced; the utilization rate of the coal-based solid waste fly ash is increased; by arranging the filling side slopes and the drainage ditches, the roadbed structure can be kept stable, the construction engineering quality is improved, and obvious social and economic benefits are created.
本发明公开了一种寒旱地区盐渍土路基新型结构,属于路基工程技术领域。所述路基结构本体由从上至下依次铺设第一层砾石填料层、盐水隔断层及第二层砾石填料层组成,所述路基本体的两侧设置有边坡、护坡道和排水沟，铁轨铺设于第一层砾石填料层上方,所述盐水隔断层主要由复合土工膜及粉煤灰改良后的原状盐渍土组成，粉煤灰掺入量10～15％。本发明通过在两层填料层之间设置隔断层,阻挡了水分、盐分在路基本体的纵向迁移,减少了路基病害问题的发生几率；本发明提高了煤基固废粉煤灰的利用率；本发明通过设置填方边坡及排水沟,有利于保持路基结构稳定，提高施工工程质量，创造了明显的社会及经济效益。
The invention discloses a novel structure of a salinized soil roadbed in a cold and arid region, and belongs to the technical field of roadbed engineering. The roadbed structure body is composed of a first gravel packing layer, a saline water separation layer and a second gravel packing layer which are sequentially laid from top to bottom, side slopes, slope protection ways and drainage ditches are arranged on the two sides of the roadbed structure body, and the rail is laid above the first gravel packing layer. The saline water separation layer is mainly composed of a composite geomembrane and undisturbed saline soil improved by fly ash, and the doping amount of the fly ash is 10-15%. The partition layer is arranged between the two filler layers, longitudinal migration of moisture and salt in the roadbed body is blocked, and the occurrence probability of roadbed diseases is reduced; the utilization rate of the coal-based solid waste fly ash is increased; by arranging the filling side slopes and the drainage ditches, the roadbed structure can be kept stable, the construction engineering quality is improved, and obvious social and economic benefits are created.
本发明公开了一种寒旱地区盐渍土路基新型结构,属于路基工程技术领域。所述路基结构本体由从上至下依次铺设第一层砾石填料层、盐水隔断层及第二层砾石填料层组成,所述路基本体的两侧设置有边坡、护坡道和排水沟，铁轨铺设于第一层砾石填料层上方,所述盐水隔断层主要由复合土工膜及粉煤灰改良后的原状盐渍土组成，粉煤灰掺入量10～15％。本发明通过在两层填料层之间设置隔断层,阻挡了水分、盐分在路基本体的纵向迁移,减少了路基病害问题的发生几率；本发明提高了煤基固废粉煤灰的利用率；本发明通过设置填方边坡及排水沟,有利于保持路基结构稳定，提高施工工程质量，创造了明显的社会及经济效益。
Novel structure of salinized soil roadbed in cold and arid region
一种寒旱地区盐渍土路基新型结构
2024-05-07
Patent
Electronic Resource
Chinese
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