兰州理工大学学报 ›› 2026, Vol. 52 ›› Issue (1): 127-134.

• 建筑科学 • 上一篇    下一篇

地震作用下多级黄土边坡的抗震设计优化研究

陶晖1, 叶炜钠*2, 李京榜2, 叶帅华3,4, 花道轩3,4, 章瑞环3,4   

  1. 1.甘肃建筑职业技术学院 建筑工程系, 甘肃 兰州 730050;
    2.兰州工业学院 土木工程学院, 甘肃 兰州 730050;
    3.兰州理工大学 甘肃省土木工程防灾减灾重点实验室, 甘肃 兰州 730050;
    4.兰州理工大学 西部土木工程防灾减灾教育部工程研究中心, 甘肃 兰州 730050
  • 收稿日期:2022-05-19 出版日期:2026-02-28 发布日期:2026-03-05
  • 通讯作者: 叶炜钠(1992-),女,河南巩义人,博士,副教授.Email:yewn@lzit.edu.cn
  • 基金资助:
    国家自然科学基金(52168050),甘肃省教育厅高校青年博士支持项目(2023QB-052),甘肃省住房和城乡建设厅2023年建设科技项目(JK2023-07)

Study on seismic design optimization of multistage loess slope under earthquake

TAO Hui1, YE Wei-na2, LI Jing-bang2, YE Shuai-hua3,4, HUA Dao-xuan3,4, ZHANG Rui-huan3,4   

  1. 1. Department of Architectural Engineering, Gansu Vocational College of Architecture, Lanzhou 730050, China;
    2. College of Civil Engineering, Lanzhou Institute of Technology, Lanzhou 730050, China;
    3. Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou 730050, China;
    4. Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China
  • Received:2022-05-19 Online:2026-02-28 Published:2026-03-05

摘要: 主要针对地震作用下多级黄土边坡抗震优化设计开展研究,考虑在有限的放坡空间条件下,以综合坡率始终保持不变的这类多级黄土边坡为研究对象,在利用有限元软件Geo Studio对不同类型的多级黄土边坡进行数值模拟的基础上,分析通过改变平台宽度和边坡级数,从而研究边坡在地震作用下的动力响应及稳定性的规律.结果表明:在综合坡率不变的前提下,每级边坡坡角会随着平台宽度的增大逐渐变大,边坡在地震作用下的加速度、位移响应也会得到相应的增强,其动力稳定性先增加后降低;此外,每级边坡坡角也会随着边坡级数的增多逐渐变大,边坡在地震作用下的加速度、位移响应呈现出先增后减的特点,其地震稳定性同样有着先增后减的趋势.

关键词: 综合坡率, 动力响应, 稳定性, 抗震设计, 平台宽度

Abstract: The seismic optimization design of a multi-level loess slope under earthquake is mainly studied here. Considering practical engineering constraints of limited sloping space, multi-level loess slope with constant overall slope ratios is selected as the research object. Numerical simulations of different multi-level slope configurations are conducted using Geo-Studio finite element software. By varying the width of platform and the grade of slope, the dynamic response and stability of slope under earthquake are studied The results show that under the premise of constant comprehensive slope rate, the slope angle of each grade gradually increases with the increase of platform width. Correspondingly, the acceleration and displacement response of the slope under earthquake becomes more enhanced, and its dynamic stability first increase and then decrease. In addition, the slope angle of each grade of slope increases as the grade number of slope levels increases. The acceleration and displacement responses of the slope under seismic action show the characteristics of first increasing and then decreasing, and its seismic stability follows the same trend of first increasing and then decreasing.

Key words: comprehensive slope rate, dynamic response, stability, seismic design, platform width

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