电化铁路 meaning in English

electrified railway

The standard drawing of composite tunnel lining for single - track railway tunnel is improved , and the concept of full - circular monolithic lining and some kinds of primary scheme have been given . the design schemes are proposed after studying the stability of surrounding rock , comparing technique economy and analyzing all kinds of primary schemes
本文针对单线电化铁路隧道复合式衬砌标准图存在的问题进行了结构优化设计研究，提出了全环整体模筑衬砌的概念和若干种方案，并对其进行围岩稳定性分析、技术经济比较和综合受力分析，在此基础上提出了建议采用的设计方案。