摘要
为保证西北地区修建的宝兰客运专线铁路黄土路基的强度,必须对黄土填料进行改良.在黄土中掺入不同配比的矿渣脱硫石膏生石灰,养护28 d进行冻融循环试验和浸水试验后测试其无侧限抗压强度,结果表明改良后的黄土强度能够满足铁路路基的强度要求,最后提出作为路基填料的改良黄土的最优配比.
In order to guarantee the strength of the loess roadbed for the Baolan special passenger railway in northwest China, the performance of the loess filler must be improved.The desulfurization gypsum lime is mixed in the loess with different ratios, the freeze-thaw circulation test and test after the immersion experiment are carried to test the unconfined compressive strength after 28 days of maintenance.The analysis result shows that the improved loess can satisfy the requirement of the railway roadbed strength and the optimal formula is put forward.
出处
《兰州工业学院学报》
2015年第1期10-13,共4页
Journal of Lanzhou Institute of Technology
关键词
路基填料
改良黄土
冻融循环
浸水试验
强度
subgrade filling
modified loess
the freeze-thaw cycle
water immersion test
strength
