黄土地区某铁路专用线路基动力响应规律
王瑞, 胡志平, 殷珂, 马甲宽, 任翔

Dynamic Responses Law of Subgrade of a Special Railway Line in Loess Region
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图6 道砟-枕木-紧固件系统实体单元示意(m)
Fig.6 Entity finite element of ballast-sleeper-fastener system (m)