CAJ | 학술논문

既有线开行大轴重列车是发展重载铁路的重要途径，但提高轴重会影响路基边坡的稳定性。将强度折减法应用于重载铁路路基边坡稳定性的三维分析，并与传统极限平衡法和二维强度折减法计算结果进行了对比，表明基于强度折减法的重载铁路路基边坡稳定性三维有限元分析是可行的。采用三维强度折减法分析了列车轴重对路基边坡稳定性的影响，结果表明在既有线上开行大轴重列车将降低路基边坡的稳定性，应事先对薄弱路段进行加固，以保证行车安全。
기유선개행대축중열차시발전중재철로적중요도경，단제고축중회영향로기변파적은정성。장강도절감법응용우중재철로로기변파은정성적삼유분석，병여전통겁한평형법화이유강도절감법계산결과진행료대비，표명기우강도절감법적중재철로로기변파은정성삼유유한원분석시가행적。채용삼유강도절감법분석료열차축중대로기변파은정성적영향，결과표명재기유선상개행대축중열차장강저로기변파적은정성，응사선대박약로단진행가고，이보증행차안전。
China's railway embarks on an upgrade of axle load to existing heavy haul lines,yet the greater load poses challenges to the stability of the subgrade slope.In this light,the paper applies the strength reduction method to the T hree-dimensional analysis on slope stability,and compared the results arrived with that from the limit equilibrium method ( M-P method) and T wo-dimensional strength reduced method.Statistic shows that the approach is reliable and can be used in further study.In the meantime,the paper discovers that enforcement measures need to be taken beforehand to ensure the operation safety of the heavy haul train.