Abstract In permafrost or seasonal frost regions, compactions are carried out under freezing conditions. Typical compaction characteristics under nonfreezing conditions are different from those under freezing conditions. To compare the compaction characteristics of frozen and unfrozen sands, a series of sand compactions was performed under nonfreezing temperature (15°C) and freezing temperature (-10°C). For each temperature, 50 compaction cycles producing 50 compaction curves were conducted on Jumunjin sands. After the 50 compaction cycles, compaction sensitivity, changes of dry unit weight, and particle size distribution curves were analyzed. As a result, for a given water content, dry unit weight increases with increasing accumulated compaction energy per unit sample volume under both the nonfreezing and freezing temperatures. Compaction sensitivity under the nonfreezing temperature was the lower than that under the freezing temperature. Nonetheless, compaction under the nonfreezing condition was more efficient compared with that under the freezing condition.


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    Titel :

    Evaluation of Compaction and Crushing Characteristics of Frozen and Unfrozen Sands Under Repetitive Compactions


    Beteiligte:
    Lee, Kichoel (Autor:in) / Song, Chang Geun (Autor:in) / Kim, Dongwook (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2018-04-10


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch






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