IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v16y2023i5p2423-d1086732.html
   My bibliography  Save this article

Effects of Earth–Rock Dam Heterogeneity on Seismic Wavefield Characteristics

Author

Listed:
  • Hao Xu

    (School of Civil Engineering and Architecture, Wuhan Polytechnic University, Wuhan 430023, China
    Hubei Key Laboratory of Marine Geological Resources, China University of Geosciences, Wuhan 430074, China)

  • Xinjiang Yu

    (Research Center on Water Engineering Safety and Disaster Prevention of Ministry of Water Resources, Changjiang River Scientific Research Institute, Wuhan 430010, China)

  • Fei Cheng

    (Hubei Key Laboratory of Marine Geological Resources, China University of Geosciences, Wuhan 430074, China)

  • Yuxi Ma

    (School of Civil Engineering and Architecture, Wuhan Polytechnic University, Wuhan 430023, China)

  • Jialiang Li

    (School of Civil Engineering and Architecture, Wuhan Polytechnic University, Wuhan 430023, China)

  • Xiaohuan Jiang

    (School of Civil Engineering and Architecture, Wuhan Polytechnic University, Wuhan 430023, China)

Abstract

Earth–rock dams are typical soil–rock mixtures with high heterogeneity. Mastering the effect of dam heterogeneity on seismic wavefields is the premise of accurately detecting hidden risks in dams. In this paper, based on the soil–rock mixture characteristics of actual dams, a soil–rock mixture model that can reflect the heterogeneity of dams is established through local segmentation and reassignment of random disturbances. The influence of local area size on model heterogeneity is described. The seismic wavefield in a soil–rock mixture dam is numerically simulated through a staggered-grid finite-difference algorithm with second-order accuracy in time and sixth-order accuracy in space. Then, the effect of dam heterogeneity on effective wavefields is analyzed. The results show that the heterogeneity of the earth–rock dam can lead to scattered waves in the seismic wavefield, and the scattered waves are mainly generated by Rayleigh surface waves. In the seismic record, scattered waves with strong energy appear in the region below the surface waves. The scattered wave energy is weak and close to that in the homogeneous media in the region above the surface waves. As the rock content in the dam increases, the scattering of seismic wavefields and the energy of scattered waves weaken gradually. The scattered waves generated by the heterogeneity of the dam significantly impact the reflected longitudinal wave and converted wave but, affect the reflected shear wave less. The numerical simulation results are consistent with the acquired seismic wavefield from the field test, proving the effectiveness of the numerical simulation for the seismic wavefield propagation characteristics of the earth–rock dam.

Suggested Citation

  • Hao Xu & Xinjiang Yu & Fei Cheng & Yuxi Ma & Jialiang Li & Xiaohuan Jiang, 2023. "Effects of Earth–Rock Dam Heterogeneity on Seismic Wavefield Characteristics," Energies, MDPI, vol. 16(5), pages 1-16, March.
  • Handle: RePEc:gam:jeners:v:16:y:2023:i:5:p:2423-:d:1086732
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/16/5/2423/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/16/5/2423/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Ying Lin & Guangzhi Zhang & Minmin Huang & Baoli Wang & Siyuan Chen, 2022. "Non-Stationary Random Medium Parameter Estimation of Petrophysical Parameters Driven by Seismic Data," Energies, MDPI, vol. 15(13), pages 1-21, July.
    2. Hao Gu & Xiao Fu & Yantao Zhu & Yijun Chen & Lixian Huang, 2020. "Analysis of Social and Environmental Impact of Earth-Rock Dam Breaks Based on a Fuzzy Comprehensive Evaluation Method," Sustainability, MDPI, vol. 12(15), pages 1-15, August.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Shiya Gao & Zeyu Wang & Shaoxiang Jiang & Wen Ding & Yuchen Wang & Xiufang Dong, 2022. "Optimization of Work Environment and Community Labor Health Based on Digital Model—Empirical Evidence from Developing Countries," IJERPH, MDPI, vol. 19(20), pages 1-17, October.
    2. Kai Dong & Zhankuan Mi & Dewei Yang, 2022. "Comprehensive Diagnosis Method of the Health of Tailings Dams Based on Dynamic Weight and Quantitative Index," Sustainability, MDPI, vol. 14(5), pages 1-13, March.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:16:y:2023:i:5:p:2423-:d:1086732. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.