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阐述了荣乌线新河至辛庄子段高速公路大部分路段土质为粉砂性盐渍土,此类土同时具备了粉砂土和盐渍土的特性。用此种土填筑路基,路基表面极易破坏、松散、难以成型,且路基的整体强度较低,路基弯沉值达不到设计要求。本文通过用水泥固化剂和石灰固化剂分别对该土进行改性试验,并通过室内试验与现场试验相比较、改性前数据与改性后数据相比较,来确定科学合理的路基改良方案,从而使路基的各项检测指标均能满足设计要求。
It is described that the soil quality of most sections of the Rongwu line Xinhe to Xinzhuangzidai expressway is silt saline soil, which has both the characteristics of silt sand and saline soil. Filling the subgrade with such soil can easily destroy the surface of the subgrade, loose it and difficult to mold, and the overall strength of the subgrade is low, and the subgrade deflection value can not meet the design requirements. In this paper, by using cement curing agent and lime curing agent, respectively, the soil modification test, and compared with the field test indoor test, the data before modification compared with the modified data to determine the scientific and rational subgrade improvement program, So that the subgrade test indicators can meet the design requirements.