兰州工业学院学报
蘭州工業學院學報
란주공업학원학보
Journal of Lanzhou Institute of Technology
2015年
1期
10-13
,共4页
路基填料%改良黄土%冻融循环%浸水试验%强度
路基填料%改良黃土%凍融循環%浸水試驗%彊度
로기전료%개량황토%동융순배%침수시험%강도
subgrade filling%modified loess%the freeze-thaw cycle%water immersion test%strength
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。
為保證西北地區脩建的寶蘭客運專線鐵路黃土路基的彊度，必鬚對黃土填料進行改良。在黃土中摻入不同配比的礦渣脫硫石膏生石灰，養護28 d進行凍融循環試驗和浸水試驗後測試其無側限抗壓彊度，結果錶明改良後的黃土彊度能夠滿足鐵路路基的彊度要求，最後提齣作為路基填料的改良黃土的最優配比。
위보증서북지구수건적보란객운전선철로황토로기적강도，필수대황토전료진행개량。재황토중참입불동배비적광사탈류석고생석회，양호28 d진행동융순배시험화침수시험후측시기무측한항압강도，결과표명개량후적황토강도능구만족철로로기적강도요구，최후제출작위로기전료적개량황토적최우배비。
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 car-ried 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.
