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分析黄河流域桥梁桩基础损伤的类型及其成因,建立了在役跨黄河桥梁桩基础损伤状况评价指标体系和模糊层次综合评价模型,运用该评价模型对刘江黄河公路大桥进行了损伤状况评价,结果表明:该桥桩基础现有状况等级介于Ⅰ级和Ⅱ级之间,且略微倾向于Ⅰ级,即目前桥梁桩基础存在轻微缺损,但功能较完好,不影响正常使用。该评价模型为黄河流域桥梁桩基础损伤状况的评价提供了客观、合理的评价体系与方法。
Based on the analysis of the types and causes of bridge pile foundation damage in the Yellow River Basin, the evaluation index system and fuzzy hierarchy comprehensive evaluation model of the pile foundation damage of existing bridges across the Yellow River are established. By using this evaluation model, the damage status of the Liujiang River Bridge is evaluated, The results show that the existing status of the bridge pile foundation is between Grade I and Grade II, and it is slightly inclined to Grade I. At present, there is a slight defect in the foundation of the pile, but the function is intact, which does not affect the normal use. The evaluation model provides an objective and reasonable evaluation system and method for evaluating the damage status of bridge pile foundation in the Yellow River Basin.