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1971年9-10期《铁路标准设计简讯》发表的铁一院三总队四队的“土石方计算方法的研究”一文,详细地介绍了新的铁路路基土石方计算方法,是很有实际意义的科学成果。我们学习过程中有两个问题需要商榷: 一、关于设计边坡变化的简化办法 1.铁路的路堤或路堑,由于填挖高增加到一定值,为确保路基稳定性的技术条件,需设两个或两个以上边坡。由于新的路基土石方计算方法的需要,两个或两个以上的设计边坡需进行简化。其办法是采用当量边坡。由于填
1971 9-10 “Railway Standard Design Briefing,” published an iron and three units of the three corps “calculation of earth and stone method” article, a detailed description of the new railway subgrade earthwork calculation method is of great practical significance of science Results. There are two issues that we need to discuss in the process of studying: I. A Simplified Approach to Designing Slope Variation 1. The embankment or road cutting of railroads increases to a certain value due to the increase of filling and excavation. To ensure the technical conditions of roadbed stability, two One or two or more slopes. Due to the need for new subgrade earthwork calculation methods, two or more design slopes need to be simplified. The solution is to use equivalent slope. Due to fill