日本国营铁路随着高速线路的发展,运量的增加,为了减少养护维修作业量,在线路构造及材料方面已有很大的改进。如采用重型钢轨、预应力钢筋混凝土轨枕、无碴线路、板式轨道等。但是,木枕在技术上和经济上仍具有一定的优点。目前大多数国家的铁路还是以采用木枕为主,并正在积极地加以改进,如对现有木枕进行有效的防腐、防裂和提高耐久性等措施。 With the development of high-speed lines and the increase of traffic volume, the number of Japanese state-owned railways has been greatly improved in line structure and materials in order to reduce maintenance and repair work. Such as the use of heavy rails, prestressed concrete sleepers, ballastless track, slab track. However, wooden pillows still have some technical and economic advantages. At present, railroads in most countries are still dominated by wooden sleepers and are being actively improved, such as effective anti-corrosion, cracking prevention and durability enhancement of existing wooden sleepers.