电石灰改良高液限黏土强度特性研究  

Study on Strength Characteristics of High Liquid Limit Clay Improved by Calcium Carbide Dust

作　　者：李柱 王宏[2] LI Zhu;WANG Hong(China Railway 19th Bureau Group Third Engineering Co.,Ltd.,Shenyang,Liaoning 110136,China;CCCC First Highway Consultants Co.,Ltd.,Xi'an,Shaanxi 710075,China)

机构地区：[1]中铁十九局集团第三工程有限公司,辽宁沈阳110136 [2]中交第一公路勘察设计研究院有限公司,陕西西安710075

出　　处：《施工技术》2021年第9期103-106,共4页Construction Technology

摘　　要：为将电石灰改良高液限黏土应用于路基填筑中,对改良高液限黏土无侧限抗压强度、抗剪强度、动态回弹模量衰减规律及干湿、冻融循环前后填料最小承载比开展室内试验研究,建立改良高液限黏土填料最小承载比与动态回弹模量回归关系,并与水泥土和石灰改良高液限黏土进行对比。结合实际工程应用,对电石灰改良高液限黏土填筑路基路用性能进行检测评价。In order to apply calcium carbide dust improved high liquid limit clay to subgrade filling,laboratory experiments were carried out of the unconfined compressive strength,shear strength,attenuation law of dynamic rebound modulus,and the minimum load-bearing ratio of the filler before and after the dry-wet cycle and freeze-thaw cycle.The regression relationship between the minimum load-bearing ratio of the modified clay filler and the dynamic resilience modulus was established and compared with the cement-soil and calcium carbide dust improved high liquid limit clay.Combined with actual engineering applications,the pavement performance of calcium carbide dust improved high liquid limit clay filled roadbed was tested and evaluated.

关 键 词：道路工程 路基 电石灰 高液限黏土 路用性能 力学性能 

分 类 号：TU44[建筑科学—岩土工程]