路基是铁路轨道的基础,路基质量直接关系到铁路通过能力和运输安全,过去由于长期不被重视,造成病害很多。为加强路基的设计、施工及验收工作,近几年来,铁道部安排制订和修订一整套铁路路基工程技术规范,计有《铁路路基设计规范》、《铁路路基施工规范《铁路路基土石方工程施工技术安全规则》、《铁路路基工程质量评定验收标准》和《铁路 Subgrade is the foundation of railway track. Subgrade quality is directly related to railway passing capacity and transport safety. In the past, due to being ignored for a long time, many diseases were caused. In order to strengthen the design, construction and acceptance of roadbed, in recent years, the Ministry of Railways has made arrangements for the formulation and revision of a set of technical specifications for railway embankment engineering, including the “Code for Design of Railway Embankment” and the “Code for Construction of Railway Embankment” Safety rules “,” railway subgrade engineering quality assessment acceptance criteria “and” railway