Volume 39 Issue 5
Oct.  2025
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Article Navigation >  GEOTECHNICAL ENGINEERING TECHNIQUE  > 2025  >  39(5): 731-736
Wang Yong, Sheng Zhizhan, Liu Qingsong, Hu Gaowei. Reinforcement effect of gravel filling in stepped site by dynamic consolidation[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2025, 39(5): 731-736. doi: 10.20265/j.cnki.issn.1007-2993.2024-0478
Citation: Wang Yong, Sheng Zhizhan, Liu Qingsong, Hu Gaowei. Reinforcement effect of gravel filling in stepped site by dynamic consolidation[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2025, 39(5): 731-736. doi: 10.20265/j.cnki.issn.1007-2993.2024-0478
shu

Reinforcement effect of gravel filling in stepped site by dynamic consolidation

doi: 10.20265/j.cnki.issn.1007-2993.2024-0478
  • 1.

    Beijing University Of Technology, Beijing 100124, China

  • 2.

    BGI Engineering Consultants Ltd., Beijing 100038, China

  • Received Date: 2024-10-21
  • Accepted Date: 2025-01-02
  • Rev Recd Date: 2024-11-25
  • Publish Date: 2025-10-10
    Abstract
  • The dynamic compaction method is widely used in coastal soft soil areas because of its convenient construction and low cost. In Beijing, affected by the heavy rainfall on July 31, 2023, some residential buildings in mountainous areas were seriously damaged by water. The newly built houses are two-story western-style houses with low bearing capacity demand. The project site is a terrace site at the front of the mountain. The dynamic compaction method was selected for foundation treatment, and the effect of dynamic compaction in the gravel-filled area was analyzed. Relying on the water-damaged reconstruction project of Yanhekou village, Zhaitang town, Mentougou District, the effect of dynamic compaction is simulated by using numerical calculation software. Combined with the actual engineering construction and testing data, the factors such as filling depth, rammer spacing, rammer size, and tamping times were analyzed, and the correction coefficient of dynamic compaction influence depth corresponding to the gravel filling stratum and the optimal location of tamping points in the stepped site were obtained. The numerical model calculation results are consistent with the field test results.

     

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