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山东大学学报 (工学版) ›› 2022, Vol. 52 ›› Issue (1): 74-84.doi: 10.6040/j.issn.1672-3961.0.2021.063

• • 上一篇    

粗粒氯盐渍土路用性能试验研究

邓苗毅1,闫启耀1,王金山2*   

  1. 1. 郑州航空工业管理学院土木建筑学院, 河南 郑州 450046;2. 新疆大学建筑工程学院, 新疆 乌鲁木齐 830047
  • 发布日期:2022-02-21
  • 作者简介:邓苗毅(1975— ),男,河南洛阳人,副教授,博士,硕士生导师,主要研究方向为岩土与道路工程. E-mail: 369727946@qq.com. *通信作者简介:王金山(1990— ),男,河南南阳人,硕士,主要研究方向为非饱和土与特殊土路基. E-mail:wjs705358329@126.com
  • 基金资助:
    中原科技创新领军人才资助项目(194200510015)

Experimental study on road performance of coarse-grained chlorine saline soil

DENG Miaoyi1, YAN Qiyao1, WANG Jinshan2*   

  1. 1. School of Civil Engineering and Architecture, Zhengzhou University of Aeronautics, Zhengzhou 450046, Henan, China;
    2. School of Civil Engineering &
    Architecture, Xinjiang University, Urumqi 830047, Xinjiang, China
  • Published:2022-02-21

摘要: 为探究粗粒氯盐渍土的路用性能,通过室内动三轴试验和承载比试验,研究粗粒氯盐渍土的动态回弹模量和承载比CBR(California bearing ratio, CBR)受应力级位、含水率及含盐量影响的演变规律。试验结果表明:动态回弹模量随围压、体应力的增加而增大,随偏应力的增大而减小,CBR随单位压力的增大而增大;含盐量和含水率越高,应力对动态回弹模量和CBR影响越明显;相同应力水平下,随含水率、含盐量的增高,动态回弹模量和CBR的降低幅度逐渐增大,且盐分影响较水分更为显著。数据分析发现,所测得回弹模量与CBR最小分别为51.05 MPa和11.98%,均满足路基规范对填料路用性能的要求,并评价了该类盐渍土作为路基填料的可行性。研究成果为有效利用粗粒盐渍土填筑路基提供科学依据。

关键词: 粗粒氯盐渍土, 路用性能, 动态回弹模量, CBR, 动三轴试验, 加州承载比试验, 路基填料

中图分类号: 

  • TU443
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