水泥稳定碎石混合料无侧限抗压强度的影响因素分析  

Analysis on Influence Factors of Unconfined Compressive Strength of Cement Stabilized Gravel Mixture

作　　者：于淼 马骉[1] 李笑盈 田宇翔[1] YU Miao;MA Biao;LI Xiaoying;TIAN Yuxiang(School of Highway,Chang＇an University,Xi＇an 710064,China;Tianjin Municipal,Tianjin 300000,China)

机构地区：[1]长安大学公路学院,西安710064 [2]天津市政,天津300000

出　　处：《路基工程》2018年第4期7-12,共6页Subgrade Engineering

基　　金："十二五"国家科技支撑计划(2014BAG05B04);交通运输部高层次人才培养项目(213021160088)

摘　　要：以水泥稳定碎石的抗压强度参数取值为研究方向,通过收集既有水泥稳定碎石混合料抗压强度试验数据,建立强度数据库,在不同保证率下取得各参数代表值,对比分析试件成型方式、集料级配类型、养生龄期、水泥剂量等不同影响因素与水泥稳定碎石抗压强度的关系,利用数学回归方法,建立不同养生龄期、水泥剂量条件下的预测方程。经验证,所建立强度对数模型具有较高的拟合精度,可为路面结构设计与性能预估提供取值依据。Taking the compressive strength parameter direction, by collecting the test data of the compressive selection of cement stabilized gravel as the research strength of the existing cement stabilized gravel mixture and establishing database of strength, the representative values of various parameters under different assurance rates are obtained, the relationship between different influence factors such as the specimen forming method, type of aggregate gradation, curing age, cement dosage, etc. and the compressive strength of the cement stabilized gravel is compared and analyzed. Using the mathematical regression method to establish prediction equation under different curing ages and cement dosage. It is verified that the established strength logarithm model has higher fitting precision, which can provide value basis for pavement structure design and performance forecast.

关 键 词：道路工程 水泥稳定碎石 抗压强度 预测模型 大数据 

分 类 号：U414.1[交通运输工程—道路与铁道工程]