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The influence of compaction energy on frost-heave characteristics of coarse-grained soil

Author

Listed:
  • Fengyun Liu

    (Xi’an University of Architecture and Technology)

  • Zhushan Shao

    (Xi’an University of Architecture and Technology)

  • Rujia Qiao

    (Xi’an University of Architecture and Technology)

  • Shuocheng Zhang

    (Xi’an University of Architecture and Technology)

  • Wen-Chieh Cheng

    (Xi’an University of Architecture and Technology)

Abstract

Compactness is an important parameter to guarantee the subgrade stability, which is dramatically affected by temperature, especially in cold region. In this paper, the effect of compaction energy was considered in frozen stage under closed system. Frost-heave tests with different fines contents and moisture contents with non-water supply under different compaction energy conditions were carried out to find out the relationship between compaction energy and frost-heave ratio. Results showed that frost-heave ratio reached its maximum in the standard compaction energy test, minimum in the insufficient compaction energy test, and median in the over compaction energy tests. Surprisingly, frost-heave ratio first increased with the increase in fines content and then decreased with the increase in fines content. The water weight of absorption per unit area was also set up to explain it. It is an interesting discovery.

Suggested Citation

  • Fengyun Liu & Zhushan Shao & Rujia Qiao & Shuocheng Zhang & Wen-Chieh Cheng, 2020. "The influence of compaction energy on frost-heave characteristics of coarse-grained soil," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 100(2), pages 897-908, January.
    • Handle: RePEc:spr:nathaz:v:100:y:2020:i:2:d:10.1007_s11069-019-03827-6
    DOI: 10.1007/s11069-019-03827-6
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    References listed on IDEAS

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    1. Fujun Niu & Jing Luo & Zhanju Lin & Minhao Liu & Guoan Yin, 2014. "Thaw-induced slope failures and susceptibility mapping in permafrost regions of the Qinghai–Tibet Engineering Corridor, China," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 74(3), pages 1667-1682, December.
    2. Junling Qiu & Xiuling Wang & Jinxing Lai & Qian Zhang & Junbao Wang, 2018. "Response characteristics and preventions for seismic subsidence of loess in Northwest China," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 92(3), pages 1909-1935, July.
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