Low seismic shaking induced densification of large spoil heap composed with low-density particle material
IntroductionVibration-induced densification of loose particle material is an important phenomenon in deformation and instability study of large spoil heap. To investigate the vibration-induced densification characteristics and deformation mechanisms of a low-density spoil heap under small seismic ef...
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2025.1537936/full |
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| author | Jian Lv Tao Jiang Shuangcheng Wang Wei Huang Shenghua Cui Lihu Duan Zhenfu Huang |
| author_facet | Jian Lv Tao Jiang Shuangcheng Wang Wei Huang Shenghua Cui Lihu Duan Zhenfu Huang |
| author_sort | Jian Lv |
| collection | DOAJ |
| description | IntroductionVibration-induced densification of loose particle material is an important phenomenon in deformation and instability study of large spoil heap. To investigate the vibration-induced densification characteristics and deformation mechanisms of a low-density spoil heap under small seismic effects, a spoil heap located in western Sichuan Province was selected as the research subject, and a large-scale shaking table test was performed.MethodsThe settlement and acceleration response behaviors of the slope model during the vibration process were analyzed using three-dimensional point cloud data and acceleration time-history data, with horizontal and horizontal-vertical bi-directional seismic waves applied at progressively increasing amplitudes. Simultaneously, the natural frequency and damping characteristics of the slope model were determined using the transfer function. The deformation and damage modes, as well as the characteristics of vibration-induced densification, were also analyzed and discussed.ResultsThe results indicate that vibration-induced densification of low-density spoil heaps under small seismic forces exists and becomes more pronounced with increasing excitation intensity. This vibration-induced densification leads to a progressively more significant elevation amplification effect.DiscussionDuring the vibration-induced densification process, the medium undergoes self-organization in three phases, including settlement, dynamic equilibrium, and expansion. Based on the experimental observations, the deformation process of low-density spoil heaps can be divided into three stages: settlement and densification, collapse and disintegration, and downward misalignment and slippage. The findings of this study provide valuable insights and recommendations for the prevention and control of low-density spoil heap deformation in future engineering practices. |
| format | Article |
| id | doaj-art-68b2d0ccce7d45f0ada505d86202a7cd |
| institution | Kabale University |
| issn | 2296-6463 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Earth Science |
| spelling | doaj-art-68b2d0ccce7d45f0ada505d86202a7cd2025-02-05T09:25:47ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632025-01-011310.3389/feart.2025.15379361537936Low seismic shaking induced densification of large spoil heap composed with low-density particle materialJian Lv0Tao Jiang1Shuangcheng Wang2Wei Huang3Shenghua Cui4Lihu Duan5Zhenfu Huang6State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, ChinaState Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, ChinaHydrogeological and Environmental Geological Survey Center, Geological Bureau, Urumqi, Xinjiang Uyghur Autonomous Region, ChinaState Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, ChinaState Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, ChinaState Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, ChinaHydrogeological and Environmental Geological Survey Center, Geological Bureau, Urumqi, Xinjiang Uyghur Autonomous Region, ChinaIntroductionVibration-induced densification of loose particle material is an important phenomenon in deformation and instability study of large spoil heap. To investigate the vibration-induced densification characteristics and deformation mechanisms of a low-density spoil heap under small seismic effects, a spoil heap located in western Sichuan Province was selected as the research subject, and a large-scale shaking table test was performed.MethodsThe settlement and acceleration response behaviors of the slope model during the vibration process were analyzed using three-dimensional point cloud data and acceleration time-history data, with horizontal and horizontal-vertical bi-directional seismic waves applied at progressively increasing amplitudes. Simultaneously, the natural frequency and damping characteristics of the slope model were determined using the transfer function. The deformation and damage modes, as well as the characteristics of vibration-induced densification, were also analyzed and discussed.ResultsThe results indicate that vibration-induced densification of low-density spoil heaps under small seismic forces exists and becomes more pronounced with increasing excitation intensity. This vibration-induced densification leads to a progressively more significant elevation amplification effect.DiscussionDuring the vibration-induced densification process, the medium undergoes self-organization in three phases, including settlement, dynamic equilibrium, and expansion. Based on the experimental observations, the deformation process of low-density spoil heaps can be divided into three stages: settlement and densification, collapse and disintegration, and downward misalignment and slippage. The findings of this study provide valuable insights and recommendations for the prevention and control of low-density spoil heap deformation in future engineering practices.https://www.frontiersin.org/articles/10.3389/feart.2025.1537936/fullshaking table testlow-density particle materialspoil heapvibration-induced densificationselforganizing mechanism |
| spellingShingle | Jian Lv Tao Jiang Shuangcheng Wang Wei Huang Shenghua Cui Lihu Duan Zhenfu Huang Low seismic shaking induced densification of large spoil heap composed with low-density particle material Frontiers in Earth Science shaking table test low-density particle material spoil heap vibration-induced densification selforganizing mechanism |
| title | Low seismic shaking induced densification of large spoil heap composed with low-density particle material |
| title_full | Low seismic shaking induced densification of large spoil heap composed with low-density particle material |
| title_fullStr | Low seismic shaking induced densification of large spoil heap composed with low-density particle material |
| title_full_unstemmed | Low seismic shaking induced densification of large spoil heap composed with low-density particle material |
| title_short | Low seismic shaking induced densification of large spoil heap composed with low-density particle material |
| title_sort | low seismic shaking induced densification of large spoil heap composed with low density particle material |
| topic | shaking table test low-density particle material spoil heap vibration-induced densification selforganizing mechanism |
| url | https://www.frontiersin.org/articles/10.3389/feart.2025.1537936/full |
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