raybet体育在线 院报 ›› 2025, Vol. 42 ›› Issue (4): 120-126.DOI: 10.11988/ckyyb.20240043

• 岩土工程 • 上一篇    下一篇

加筋土挡墙自振频率计算方法对比分析

蔡晓光1,2,3(), 蔡博渊1, 李思汉1,2,3(), 黄鑫1,2,3, 徐洪路4, 朱晨5   

  1. 1 防灾科技学院 防灾减灾工程学院,河北 三河 065201
    2 河北省地震灾害防御与风险评价重点实验室,河北 三河 065201
    3 廊坊市加筋土结构研发与应用重点实验室,河北 三河 065201
    4 中国地震局工程力学研究所,哈尔滨 150080
    5 河北工业大学 土木与交通学院,天津 300401
  • 收稿日期:2024-01-17 修回日期:2024-04-22 出版日期:2025-04-01 发布日期:2025-04-01
  • 通信作者:
    李思汉(1992-),男,河北衡水人,副教授,博士,主要从事岩土地震工程研究工作。E-mail:
  • 作者简介:

    蔡晓光(1979-),男,河南鹤壁人,教授,博士,主要从事岩土地震工程研究工作。E-mail:

  • 基金资助:
    地震科技星火计划项目(XH23067YA); 廊坊市科学技术研究与发展计划项目(2023013205); 河北省高等学校科学研究计划项目(BJK2024034); 江苏省地质工程环境智能监控工程研究中心开放基金项目(2023-ZNJKJJ-06)

Comparative Analysis of Calculation Methods for Natural Vibration Frequency of Reinforced Soil Retaining Walls

CAI Xiao-guang1,2,3(), CAI Bo-yuan1, LI Si-han1,2,3(), HUANG Xin1,2,3, XU Hong-lu4, ZHU Chen5   

  1. 1 College of Disaster Prevention and Mitigation Engineering,Institute of Disaster Prevention,Sanhe 065201, China
    2 Hebei Key Laboratory of Earthquake Disaster Prevention and Risk Assessment,Sanhe 065201,China
    3 Langfang Key Laboratory of Research and Application of Geosynthetic Reinforced Soil Structure,Sanhe 065201,China
    4 Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China
    5 School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China
  • Received:2024-01-17 Revised:2024-04-22 Published:2025-04-01 Online:2025-04-01

摘要:

自振频率是加筋土挡墙抗震设计中的关键参数之一。针对非整体式的加筋土挡墙自振频率计算方法,迄今为止尚无统一认识。总结了现有的7种自振频率计算方法,以模块式加筋土挡墙(简称模块式)与复合式格宾土工格栅加筋土挡墙(简称复合式)为研究对象,通过比较实测结果与计算结果之间的准确性系数和绝对百分比误差,评估现有计算方法的有效性。分析结果表明:模块式和复合式模型位于不同高度处的自振频率基本一致。伍永胜的计算方法所得结果与实测值最为契合;Ghanbari的计算方法能够更有效减少参数变化对解析计算法的影响,从而展现出更强的适应性;徐鹏的计算方法在准确性及适应性方面具一定优势,应用范围更为广泛。在抗震设计中,建议加筋土挡墙施工前后对其自振频率进行评估,并将自振频率与面板水平位移相结合作为衡量结构损伤状态的指标之一。

关键词: 土工合成材料, 加筋土挡墙, 自振频率, 振动台试验, 对比分析

Abstract:

Natural vibration frequency is a crucial parameter in the seismic design of reinforced soil retaining walls. To date, there is no consensus on the calculation methods for the natural vibration frequency of non-monolithic reinforced soil retaining walls. This paper reviews seven existing methods for calculating the natural vibration frequency. Taking the modular reinforced soil retaining wall (hereinafter referred to as the modular type) and the composite gabion geogrid reinforced soil retaining wall (hereinafter referred to as the composite type) as research subjects, we assess the effectiveness of these existing calculation methods by comparing the accuracy coefficient and the absolute percentage error between the measured and calculated results. The analysis reveals that the natural vibration frequencies of the modular and composite models are generally consistent at different heights. Wu Yongsheng’s calculation method shows the closest agreement with the actual measurements. Ghanbari’s method can more effectively mitigate the influence of parameter changes on the analytical calculation, thus demonstrating stronger adaptability. Xu Peng’s method has certain advantages in terms of accuracy and adaptability, with a wider application scope. In seismic design, we recommend that engineers evaluate the natural vibration frequency of the reinforced soil retaining wall before and after construction and consider the horizontal displacement of the panels as an indicator to measure the structural damage state.

Key words: geosynthetic materials, reinforced soil retaining wall, natural frequency, shake table test, comparative analysis

中图分类号: 

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