To study the over-consolidation stress history of clay in a high-filled embankment during hierarchical compaction, indoor compaction and one-dimensional consolidation tests are performed on roadbed backfill clay. Two homemade compaction devices are used to drill into standard heavy compacted clay to prepare compacted clay samples and subsequently investigate the influence of compaction work, compaction impulse, water content, and compaction degree on over-consolidation stress history. Results provide an experimental basis to determine the parameters of an over-consolidated constitutive model. Experimental results show that compacted clays with the same compaction degree and water content can differ in stress history, and that this stress history increases as the compaction impulse per unit area builds up. Under the conditions of the same compaction work and over-consolidated formation, the compacted clay achieves the maximum compaction degree and stress history if water content is at the optimal level. If the water content deviates from the optimal level, the stress history of the compacted clay decreases, and it is more significantly affected by the compaction degree with increased water content.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Experimental Study on the Over-Consolidation Stress History of Subgrade Compacted Clay


    Contributors:
    Wang, Zhi-chao (author) / Jin, Gang (author) / Deng, Xu-hua (author) / Dong, Hui (author)


    Publication date :

    2016-02-15


    Size :

    72016-01-01 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown



    Compacted High-Gravel-Content Subgrade Materials

    Houston, William N. | Online Contents | 1994


    Compacted High-Gravel-Content Subgrade Materials

    Houston, W. N. / Houston, S. L. / Walsh, K. D. | British Library Online Contents | 1994


    Resilient Properties of Laboratory Compacted Subgrade Soils

    Mohammad, Louay N. | Online Contents | 1995


    Variation of Resilient Modulus with Soil Suction for Compacted Subgrade Soils

    Yang, Shu-Rong / Huang, Wei-Hsing / Tai, Yu-Tsung | Transportation Research Record | 2005


    Variation of Resilient Modulus with Soil Suction for Compacted Subgrade Soils

    Yang, Shu-Rong / Huang, Wei-Hsing / Tai, Yu-Tsung | Transportation Research Record | 2005