Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Treatment method for frost boiling and mud pumping of expansive rock-soil roadbed of ballast railway
The invention discloses a treatment method for ballast railway expansive rock-soil roadbed frost boiling and mud pumping. The treatment method comprises the steps that foundation bed soil texture expansion potentials are graded according to clay component and content test data; calculating the average annual precipitation; investigating subgrade frost boiling degree, and performing statistical analysis to determine the basic characteristics of frost boiling; determining the drainage blocking degree; investigating rail surface abrasion, direction and height change conditions of the steel rail and triangular pits, and determining the state of the steel rail; according to a calculation result, performing grade division on the frost boiling and mud rising diseases; and according to the grade of the mud pumping disease, determining a corresponding toughness rapid-rising strength anti-seepage waterproof protective layer and a specific treatment scheme. According to the construction method of the foundation bed surface layer toughness rapid strength anti-seepage protection layer, the overall strength of the foundation bed surface layer is improved, the hydraulic connection between atmospheric precipitation and hydrophilic minerals of a rock-soil body of the foundation bed surface layer is blocked, a toughness water-resisting layer with certain strength is rapidly formed, and the construction method is suitable for rapid construction of an existing running railway line; and the disease is radically treated from the source of frost boiling and mud rising of the roadbed.
本发明公开一种有砟铁路膨胀岩土路基翻浆冒泥的治理方法，包括根据黏土成分及含量试验数据对基床土质膨胀潜势进行分级；计算平均年降水量；调查路基翻浆程度，统计分析确定翻浆基本特征；确定排水阻塞程度；调查钢轨轨面磨耗、方向、高低变化情况及三角坑，确定钢轨状态；根据计算结果将翻浆冒泥病害进行等级划分；根据翻浆冒泥病害等级确定相应的韧性快速起强度防渗隔水防护层以及具体治理方案。本发明通过基床表层韧性快速起强度防渗护层构建方法以提高路基基床表层整体强度，阻断大气降水与路基基床表层岩土体亲水矿物的水力联系，快速形成有一定强度的韧性隔水层，适合既有运行铁路线的快速施工，从路基产生翻浆冒泥病害的源头根治该病害。
Treatment method for frost boiling and mud pumping of expansive rock-soil roadbed of ballast railway
The invention discloses a treatment method for ballast railway expansive rock-soil roadbed frost boiling and mud pumping. The treatment method comprises the steps that foundation bed soil texture expansion potentials are graded according to clay component and content test data; calculating the average annual precipitation; investigating subgrade frost boiling degree, and performing statistical analysis to determine the basic characteristics of frost boiling; determining the drainage blocking degree; investigating rail surface abrasion, direction and height change conditions of the steel rail and triangular pits, and determining the state of the steel rail; according to a calculation result, performing grade division on the frost boiling and mud rising diseases; and according to the grade of the mud pumping disease, determining a corresponding toughness rapid-rising strength anti-seepage waterproof protective layer and a specific treatment scheme. According to the construction method of the foundation bed surface layer toughness rapid strength anti-seepage protection layer, the overall strength of the foundation bed surface layer is improved, the hydraulic connection between atmospheric precipitation and hydrophilic minerals of a rock-soil body of the foundation bed surface layer is blocked, a toughness water-resisting layer with certain strength is rapidly formed, and the construction method is suitable for rapid construction of an existing running railway line; and the disease is radically treated from the source of frost boiling and mud rising of the roadbed.
本发明公开一种有砟铁路膨胀岩土路基翻浆冒泥的治理方法，包括根据黏土成分及含量试验数据对基床土质膨胀潜势进行分级；计算平均年降水量；调查路基翻浆程度，统计分析确定翻浆基本特征；确定排水阻塞程度；调查钢轨轨面磨耗、方向、高低变化情况及三角坑，确定钢轨状态；根据计算结果将翻浆冒泥病害进行等级划分；根据翻浆冒泥病害等级确定相应的韧性快速起强度防渗隔水防护层以及具体治理方案。本发明通过基床表层韧性快速起强度防渗护层构建方法以提高路基基床表层整体强度，阻断大气降水与路基基床表层岩土体亲水矿物的水力联系，快速形成有一定强度的韧性隔水层，适合既有运行铁路线的快速施工，从路基产生翻浆冒泥病害的源头根治该病害。
Treatment method for frost boiling and mud pumping of expansive rock-soil roadbed of ballast railway
一种有砟铁路膨胀岩土路基翻浆冒泥的治理方法
PENG YONGLIANG (Autor:in) / WANG SHIMING (Autor:in)
31.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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