Taking the dam slide of Zhexi hydroelectric power plant as the engineering background, track stability was studied in this paper through field investigation, theoretical analysis, laboratory tests and numerical simulation. The influence of key factors was discussed, including super axle load (57.5 t), steep slope, low speed and etc. The suitable track form, as well as distribution and selection of fastener was put forward. The results of the study can provide reference for the related technology of heavy haul railway construction.%以柘溪水力发电厂过坝滑道为工程背景,在现场调研的基础上,运用理论分析、室内试验和数值模拟等方法研究超轴重(57.5 t)、大坡度、匀低速等因素对轨道稳定性的影响,提出合适的轨道形式、扣件的选型与扣件的分布形态,该研究成果可为相关重载铁路的修建提供技术参考.
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