CAJ | 학술논문

结合我国重载铁路的运营特点，在前期研究成果的基础上，开展了30 t轴重重载铁路混凝土轨枕的设计、试验研究工作，并按照北美铁路工程和维修协会( AREMA)的相关规定进行对比分析。研究结果表明：新型重载轨枕能够满足30 t轴重线路的承载性能要求，同Ⅲ型枕相比，轨下截面正弯矩和中间截面负弯矩承载能力分别提高了18.5%和23.3%；新型重载轨枕能够满足国内标准及 AREMA 的相关试验要求，且具有较大安全余量，表明其达到北美重载线路用混凝土轨枕的承载水平。
결합아국중재철로적운영특점，재전기연구성과적기출상，개전료30 t축중중재철로혼응토궤침적설계、시험연구공작，병안조북미철로공정화유수협회( AREMA)적상관규정진행대비분석。연구결과표명：신형중재궤침능구만족30 t축중선로적승재성능요구，동Ⅲ형침상비，궤하절면정만구화중간절면부만구승재능력분별제고료18.5%화23.3%；신형중재궤침능구만족국내표준급 AREMA 적상관시험요구，차구유교대안전여량，표명기체도북미중재선로용혼응토궤침적승재수평。
C onsidering of the operation characteristics of heavy haul railw ay in C hina,based on previous research, design and test on concrete sleepers for 30 t axle load heavy haul railway were carried out. T he performance of this type of concrete sleepers was analyzed according to the relevant requirements of American Railway Engineering and M aintenance-of-W ay Association( AREM A) . T he results show that the concrete sleeper developed is able to ensure the bearing performance of the targeted vehicle,at the same time the bearing capacity of the positive bending moment at the sub-rail cross section and that of the negative bending moment at the mid-rail cross section are improved by 18. 5% and 23. 3% respectively,compared with the type Ⅲ sleeper. T herefore,the sleeper developed-with safety allowance for any possible incidenceis in compliance with China's technical standard and meets the requirement of AREM A. It can be concluded that in terms of its bearing capacity,the piece is on the same par with concrete sleepers current used in the heavy haul railway system in North America.