委内瑞拉北部铁路Tinaco-Anaco段轨枕选型

摘要

General situation of existing Venezuela railway tracks was introduced.Structural parameters and development trends of the main types of sleepers at home and abroad were summarized and analyzed.On the basis above,taking sleeper bearing capacity (SBC) and lateral ballast resistance (LBR) provided by sleeper as the evaluating indexes,the difference between China's Sleeper Type Ⅲ and Sleeper Type DIWIDAG COOPER E70 required by the owner were compared.Comparison results show that every index of Sleeper Type Ⅲ with shoulder was superior to that of E70,so Sleeper Type Ⅲ with shoulder could better adapt to the operation requirements of high-speed,mixed passenger and freight railway.%介绍委内瑞拉既有铁路轨道概况,总结分析国内外主型轨枕结构参数和发展趋势.在此基础上,采用轨枕承载能力、轨枕所提供的道床横向阻力2个主要指标,对比分析我国Ⅲ型有挡肩混凝土轨枕和业主要求采用的DIWIDAG COOPER E70轨枕.对比分析结果表明,Ⅲ型有挡肩混凝土轨枕各项指标均优于E-70型轨枕,能更好地适应高速、客货共线的运营要求.