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近年来国内外对轨枕铺设标准是有争议的,有些国家铁路铺枕的密度有减少的趋势,而在这些铁路线上却都行驶着120km/h以上的高速列车。减少铺枕密度有无可能,本文仅从理论分析上加以探讨,并以此作为今后设计工作中的参考,其利弊还有待于实际运营及养护中的考验。一、技术标准线路最小半径为400m,曲线最大超高为150mm,轨道标准采用50kg/m钢轨,J_2型预应力钢筋混凝土轨枕,碎石道碴道床厚50cm。牵引种类为电力韶山1型,轴重230kN,轴距2.3m,货物列车走行速度按80km/h计算。
In recent years, domestic and international laying standards for sleepers is controversial. In some countries, the density of railway sleepers tends to decrease. However, high-speed trains with speeds above 120 km / h are also running on these railway lines. Reduce the possibility of laying the pillow density, this paper only to be discussed from the theoretical analysis, and as a reference for future design work, the pros and cons have yet to be tested in the actual operation and maintenance. First, the minimum radius of the technical standard line 400m, the maximum curve ultra-high 150mm, track standard 50kg / m rails, J_2 prestressed concrete sleepers, ballast ballast bed thickness 50cm. Type of traction power Shaoshan 1 type, axle load 230kN, wheelbase 2.3m, cargo train travel speed calculated by 80km / h.