【摘要】 路段作为交通系统的主要部分,它的破坏将会严重影响交通流量,甚至会使整个交通中断。本文讨论了路段的震害现象、原因和影响因素等,简单介绍了公路的地震破坏评估方法。根据唐山和海城地震中铁路震害的统计资料,采用最小二乘法建立了铁路在各烈度下的震害评估模型,并分析了其评估结果的合理性。更多还原

【Abstract】 Main line roads are the major part of the transportation system,and their damage will affect the traffic seriously,and more badly the transportation system loses its function totally.Firstly,the earthquake damage of roads is introduced briefly,and the damage characteristics,reasons,and influence factors are discussed.The evaluation method of highway damage is also introduced.Then,a model of evaluation method for railway seismic damage is built using the factors and the least square method based on the damage experience in the Tangshan earthguake and the Haicheng earthquake,and the rationality of evaluated results is analyzed更多还原