铁路工程结构耐久性影响因素研究与工程实践

摘要

With the vigorous development of railway construction in China,the effective guarantee of the dura-bility of railway structures has become a crucial issue in the engineering construction field.The durability de-sign of railway structures has been fully implemented by the China Railway Corporation (the former Ministry of Railways)since the construction of the Qinghai-Tibet railway.A large number of exploration,scientific re-searches and engineering practices were carried out to improve the durability of railway structures significantly. The influencing factors of the railway structure durability were systematically discussed from five aspects inclu-ding construction standard,survey and design,engineering materials,quality control and maintenance.The basic principles,basic methods and key points of related technical measures for durability improvement were emphatically elaborated.The importance of the standardized management system was discussed.This paper will accumulate experience and provide technical support for the future construction and development of railway proj ects in China.%随着我国铁路建设的蓬勃发展,如何有效保证铁路工程结构耐久性已成为工程建设领域的关键问题.自青藏铁路建设以来,中国铁路总公司(原铁道部)全面推行铁路工程结构耐久性设计,先后组织开展了大量的探索、科研和工程实践,显著提升了铁路工程结构的耐久性.本文从建设标准、勘察设计、工程材料、质量控制和养护维修五方面,系统论述了铁路工程结构耐久性的影响因素,重点阐述了耐久性提升关键技术措施的基本原理、基本方法和技术要点,深入探讨了标准化管理体系的重要性,为今后我国铁路工程的建设发展积累经验并提供技术支撑.