岩土力学 ›› 2021, Vol. 42 ›› Issue (2): 401-410.doi: 10.16285/j.rsm.2020.0900

• 基础理论与实验研究 • 上一篇    下一篇

地震作用下加筋土挡墙水平位移分区计算理论

卢谅1, 2, 3,何林耀1, 2,王宗建4,KATSUHIKO ARAI5   

  1. 1. 重庆大学 土木工程学院,重庆 400045;2. 重庆大学 山地城镇建设与新技术教育部重点实验室,重庆 400045; 3. 长安大学 特殊地区公路工程教育部重点实验室,陕西 西安 710064;4. 重庆交通大学 河海学院,重庆 400074; 5. 福井大学 建筑建设工学部,日本 福井 9108507
  • 收稿日期:2020-06-28 修回日期:2020-11-09 出版日期:2021-02-10 发布日期:2021-02-09
  • 作者简介:卢谅,女,1978年生,博士,副教授,博士生导师,主要从事岩土工程等方面的研究工作
  • 基金资助:
    国家自然科学基金面上项目(No. 51679018);长安大学中央高校基本科研业务费专项资金(No. 300102219514);重庆市研究生科研创新项目(No. CYB19017)。

Partition calculation theory of horizontal displacement in reinforced earth retaining wall under earthquake

LU Liang1, 2, 3, HE Lin-yao1, 2, WANG Zong-jian4, KATSUHIKO ARAI5   

  1. 1. School of Civil Engineering, Chongqing University, Chongqing 400045, China; 2. Key Laboratory of New Technology for Construction of Cities in Mountain Area, Ministry of Education, Chongqing University, Chongqing 400045, China; 3. Key Laboratory for Special Area High Way Engineering of the Ministry of Education, Chang’an University, Xi’an, Shaanxi 710064, China; 4. College of River & Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China; 5. Faculty of Construction and Infrastructure Engineering, University of Fukui, Fukui 9108507, Japan
  • Received:2020-06-28 Revised:2020-11-09 Online:2021-02-10 Published:2021-02-09
  • Supported by:
    This work was supported by the General Program of National Natural Science Foundation of China(51679018), the Fundamental Research Funds for the Central Universities, CHD (300102219514) and the Graduate Scientific Research and Innovation Foundation of Chongqing(CYB19017).

摘要: 在地震作用下,加筋土挡墙作为一种柔性结构,常因水平位移过大影响其正常使用,因此,提出一种有效的解析方法来计算加筋土挡墙在地震作用下的水平位移显得尤为重要。基于动力作用下墙后填土的不同运动特性,将地震作用下加筋土挡墙水平位移进行分区计算,并讨论了不同区域影响土体位移的关键因素。分别以Mindlin位移理论和拟动力法为基础,以筋土无相对位移为前提,提出了地震作用下不同区域位移的计算方法,并分析了未考虑筋土相对位移对计算结果的影响。该方法通过离心模型试验得到进一步验证,可用于大多数加筋土挡墙的地震动力分析中,可为加筋土挡墙的动力设计和稳定性分析提供一定的依据。

关键词: 加筋挡墙, 水平位移, 分区方法, 拟动力法, 筋材拉力

Abstract: As a flexible structure, reinforced earth retaining walls have been widely used in the field of civil engineering. However, excessive horizontal displacement of reinforced earth retaining wall due to earthquake could affect its service performance. Therefore, it is very important to develop an effective analytical method to calculate the horizontal displacement of reinforced earth retaining wall under earthquake. The reinforced earth retaining wall was divided into two regions for calculation based on the different movement characteristics of the backfill behind the wall. The key factors affecting the horizontal displacement of the reinforced earth retaining wall in different regions were discussed. Based on Mindlin displacement theory and pseudo-dynamic method, the calculation method of horizonal displacement in different regions under the earthquake, under the assumption of no soil-reinforcement relative slippage, was proposed and the influence of soil-reinforcement relative slippage on calculated results was studied. This method is further verified by centrifuge model test and can be used in the seismic dynamic analysis of general reinforced earth retaining walls. This provides basis for the dynamic design and stability analysis of reinforced earth retaining walls.

Key words: reinforced earth retaining wall;horizontal displacement;partition method, pseudo-dynamic, tension of reinforcement

中图分类号: TU 435
[1] 武孝天, 姚仰平, 魏然, 崔文杰. 基于统一硬化模型的隧道施工引发土体变形数值模拟[J]. 岩土力学, 2025, 46(3): 1013-1024.
[2] 张常光, 关港辉, 李海祥, 范家燊, 石晶, . 水位变化下含裂缝非饱和土挡墙的地震主动土压力研究[J]. 岩土力学, 2023, 44(6): 1575-1584.
[3] 应宏伟, 熊一帆, 沈华伟, 魏锋, 李冰河, 吕唯, . 考虑圆孔不均匀收敛和空间效应的基坑坑外土体水平位移场分析[J]. 岩土力学, 2023, 44(12): 3565-3576.
[4] 李见飞. 抗滑桩加固三维复杂边坡抗震设计的 新方法——拟动力法[J]. 岩土力学, 2022, 43(S1): 275-285.
[5] 李雨浓, 刘畅, 王立伟, . 地震效应下三维非均质土坡稳定性极限分析[J]. 岩土力学, 2022, 43(6): 1493-1502.
[6] 赵久彬, 刘元雪, 何少其, 杨骏堂, 柏准, . 三峡库区阶跃变形滑坡水平位移与降雨量 数学统计模型[J]. 岩土力学, 2020, 41(S1): 305-311.
[7] 丁楚, 余文瑞, 史江伟, 张宇亭, 陈永辉, . 水平循环荷载下桩基变形特性的离心模型试验研究[J]. 岩土力学, 2020, 41(8): 2659-2664.
[8] 黄睿, 汤金焕, . RT模式下地震非极限主动土压力的拟动力分析[J]. 岩土力学, 2020, 41(8): 2564-2572.
[9] 贺雷, 张洋, 马山青, . 静压沉桩引起邻近隧道水平位移计算方法研究[J]. 岩土力学, 2020, 41(11): 3740-3747.
[10] 申翃, 李晓, 雷美清, 徐文博, 余秀玲, . 剪力键支护体系的构想及模型试验研究[J]. 岩土力学, 2019, 40(7): 2574-2580.
[11] 周 勇,令永强,杨校辉, . 考虑附加应力作用的桩锚支护结构稳定性与位移关系研究[J]. , 2018, 39(8): 2913-2921.
[12] 胡之锋,陈 健,邱岳峰,李健斌,周兴涛, . 挡墙水平变位诱发地表沉降的显式解析解[J]. , 2018, 39(11): 4165-4175.
[13] 王正振,龚维明,戴国亮,王晓阳,李亮亮,肖 刚,. 厚垫层-砂桩复合地基现场试验研究[J]. , 2018, 39(10): 3755-3762.
[14] 贾敏才 ,强 晓 ,叶建忠,. HDPE和PET土工格栅加筋路堤作用的对比研究[J]. , 2015, 36(S1): 491-495.
[15] 夏元友 ,陈春舒 ,BAKRI Mudthir ,王智德 ,周 雄,. 浅埋隧道开挖引起的土体水平位移分析[J]. , 2015, 36(2): 354-360.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!