碱渣土的击实特性  

Compaction Characteristics of Soda Residue Soil

作　　者：刘华 梁腾 赵晓晴 岳志才 邵剑涛 李咏阳 LIU Hua;LIANG Teng;ZHAO Xiaoqing;YUE Zhicai;SHAO Jiantao;LI Yongyang(School of Civil and Ocean Engineering,Jiangsu Ocean University,Lianyungang 222005,China;Lianyungang Railway Development Center,Lianyungang 222002,China;Jiangsu Institute of Marine Resources Development,Lianyungang 222005,China;Road&Bridge Group No.1 Highway Engineering Bureau,No.3 Engineering Company,Beijing 101102,China)

机构地区：[1]江苏海洋大学土木与港海工程学院,江苏连云港222005 [2]连云港市铁路事业发展中心,江苏连云港222002 [3]江苏省海洋资源开发研究院,江苏连云港222005 [4]中交一公局第三工程有限公司,北京101102

出　　处：《江苏海洋大学学报（自然科学版）》2022年第4期84-88,共5页Journal of Jiangsu Ocean University:Natural Science Edition

基　　金：江苏高校“青蓝工程”资助项目(2021年);江苏省重点研发计划项目(BE2021681);连宿高速产学研项目(JOUH22089);江苏省产学研合作项目(BY2022278)。

摘　　要：以不同比例的碱渣、粉煤灰拌合黏土形成碱渣土。通过击实试验研究表明碱渣和碱渣土的击实曲线均为单峰值曲线,利用SPSS软件进行击实曲线拟合,以显著性系数及R^(2)为判别指标,得出三次函数拟合效果优于二次函数;与普通填料相比,碱渣土质量轻自重小,其最大干密度随碱渣掺量的增多而降低,当碱渣掺量达70%时轻质性更为显著,此时所对应的最优含水率均在30%以上,压滤后的碱渣通过简单翻拌晾晒便能达到最优含水率状态。Soda residue soil is formed by mixing clay with soda residue and fly ash with different proportions. The compaction test shows that the compaction curve of soda residue and soda residue soil is a single peak curve. The compaction curve is fitted by SPSS software. Taking the significance coefficient and R^(2)as the discrimination index, it is concluded that the compaction curve fitted by cubic function is better than quadratic function. Compared with ordinary fillers, soda residue soil has light weight and small self weight. The maximum dry density of soda residue soil shows a downward trend with the increase of soda residue content. When the soda residue content reaches 70%, the lightness is more significant. At that time, the optimal water content of soda residue soil is more than 30%. The soda residue after filter pressing can reach the optimal water content by simply stirring and drying.

关 键 词：碱渣土 击实试验 击实曲线 最大干密度 最优含水率 

分 类 号：TV411[水利工程—水工结构工程]