损伤状态下某桩板式挡土墙稳定性预警

doi:10.16265/j.cnki.issn1003-3033.2020.02.008

中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (2): 47-53.doi: 10.16265/j.cnki.issn1003-3033.2020.02.008

损伤状态下某桩板式挡土墙稳定性预警

徐乾¹ 副教授, 杨超², 郭鸿¹, 郭光玲¹

1.陕西理工大学土木工程与建筑学院,陕西汉中,723001;
2.三峡库区地质灾害教育部重点实验室(三峡大学),湖北宜昌 443002

收稿日期:2019-11-17 修回日期:2020-01-10 出版日期:2020-02-28 发布日期:2021-01-25
作者简介:徐乾(1986—),男,陕西汉中人,博士,副教授,主要从事土木工程结构健康诊断与安全预警方面的研究。E-mail:xuqian20121601014@163.com。
基金资助:
国家自然科学基金青年基金资助(41602301);陕西省自然科学基础研究计划项目(2019JQ-883);陕西省教育厅专项科学研究计划项目(17JK0157);陕西理工大学人才启动项目(SLGQD2017-4)。

Stability alarming for a pile plate retaining wall with damage

XU Qian¹, YANG Chao², GUO Hong¹, GUO Guangling¹

1. School of Civil Engineering and Architecture, Shaanxi University of Technology, Hanzhong Shaanxi 723001, China;
2. Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, Ministry of Education (China Three Gorges University), Yichang Hubei 443002, China

Received:2019-11-17 Revised:2020-01-10 Online:2020-02-28 Published:2021-01-25

摘要/Abstract

摘要： 为了探究受损挡土墙结构的稳定性预警方法,首先分析挡墙-土体系统受力状态和土压力与挡墙稳定性及土体基床系数之间的关系;其次基于小波包频带能量谱分析,提出损伤预警指标——能量比变异系数(ERVC);然后分析ERVC、土压力及挡墙稳定性三者间的内在联系,提出一种用于损伤状态下的挡墙结构稳定性预警方法,即通过ERVC预警挡墙的稳定状态;最后以某桩板式挡墙为例,建立墙-土系统简化力学模型及其有限元模型,并修正有限元模型参数,得到墙-土系统基准有限元模型,以验证该预警方法的有效性。结果表明:随ERVC增大,挡墙稳定性逐渐降低;当ERVC达到界限值时,挡墙进入临界稳定状态。

关键词: 挡土墙, 稳定性预警, 土压力, 损伤预警指标, 能量比变异系数(ERVC), 基准有限元模型

Abstract: In order to investigate stability alarming method for damaged retaining walls, firstly, mechanical condition of retaining wall-soil system and relationships between earth pressure and wall stability as well as coefficient of subgrade reaction to soil were analyzed. Secondly, a damage alarming index, ERVC, was proposed based on wavelet packet frequency band energy spectrum analysis. Then, intrinsic connection among ERVC, earth pressure and stability of retaining walls was analyzed, and a stability alarming method for retaining walls with damage was put forward, namely, stability of walls being alarmed via ERVC. Finally, with a pile plate retaining wall as an example, a simplified mechanical model and finite element model of wall-soil system were established, and by updating parameters of the model, a standard model was obtained to verify proposed alarming method. The results show that with increase of ERVC value, wall stability decreases and it will enter critical stable state when ERVC reaches threshold value.

Key words: retaining wall, stability alarming, earth pressure, damage alarming index, energy ratio variation coefficient (ERVC), standard finite element model

中图分类号:

X928.03

徐乾, 杨超, 郭鸿, 郭光玲. 损伤状态下某桩板式挡土墙稳定性预警[J]. 中国安全科学学报, 2020, 30(2): 47-53.

XU Qian, YANG Chao, GUO Hong, GUO Guangling. Stability alarming for a pile plate retaining wall with damage[J]. China Safety Science Journal, 2020, 30(2): 47-53.

参考文献 20

[1]	LIU Jiequn, CHEN Luwang, LIU Jinlong. Stability analysis of cantilever retaining wall with FEM [J]. Journal of Chemical and Pharmaceutical Research, 2013, 5(9): 362-371.
[2]	LIU Jiequn, CHEN Luwang. Numerical analysis stability of retaining wall with relieving plate [J]. Journal of Theoretical and Applied Information Technology, 2013, 48(2): 720-727.
[3]	LIU Jinlong, CHEN Luwang. Stability analysis of some new types of retaining wall with FEM [J]. Information Technology Journal, 2013, 12(16): 3 626-3 632.
[4]	VIJAYAKUMER S, SUBHASH A B, SUMANT T P, et al. A case study on static stability analysis of retaining wall at dewarwadi [J]. International Journal of Innovative Research in Science, Engineering and Technology, 2015, 4(5): 3 071-3 077.
[5]	WANG Kuihua, MA Shaojun, WU Wenbin. Pseudo-dynamic analysis of overturning stability of retaining wall [J]. Journal of Central South University, 2011, 18(6): 2 085-2 090.
[6]	ANINDYA P, DEEPANKAR C, SRIMAN B. Seismic stability of retaining wall-soil sliding interaction using modified pseudo-dynamic method [J]. Geotechnique Letters, 2015, 5(1): 56-61.
[7]	周小平,季璇,钱七虎. 强地震荷载作用下临水挡土墙的拟动力法稳定性分析[J]. 岩石力学与工程学报,2012,31(10): 2 071-2 081.ZHOU Xiaoping, JI Xuan, QIAN Qihu. Stability analysis of water front retaining wall subjected to seismic loads using pseudo-dynamic method [J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(10): 2 071-2 081.
[8]	SYED M A, DEEPANKAR C. Stability of waterfront retaining wall subject to pseudo-dynamic earthquake force and tsunami [J]. Journal of Earthquake and Tsunami, 2008, 2(2): 107-131.
[9]	YANG Changwei, ZHANG Shixian, ZHANG Jianjing, et al. Seismic stability time-frequency analysis method of reinforced retaining wall [J]. Mathematical Problems in Engineering, 2015, 2015: 1-8.
[10]	LI Xinpo, SU Lijun, WU Yong, et al. Seismic stability of gravity retaining walls under combined horizontal and vertical accelerations [J]. Geotechnical Geological Engineering, 2015, 33(1): 161-166.
[11]	ZHANG Xiaoxi, HE Siming, SU Qian, et al. Seismic stability analysis of pre-stressed rope of anti-slide retaining wall [J]. Geotechnical Geological Engineering, 2013, 31(4): 1 393-1 398.
[12]	徐乾,陈建功. 基于损伤特征向量谱的桩板式挡土墙损伤预警[J]. 中南大学学报:自然科学版,2016, 47 (6): 2 053-2 057.XU Qian, CHEN Jiangong. Damage alarming on pile plate retaining wallbased on damage character vector spectrum [J]. Journal of Central South University:Natural Science Edition, 2016, 47 (6): 2 053-2 057.
[13]	徐乾,杨超. 桩板式挡土墙损伤预警研究[J]. 中国安全科学学报,2017, 27(11): 169-174.XU Qian, YANG Chao. Study on damage alarming for a pile plate retaining wall [J]. China Safety Science Journal, 2017, 27(11): 169-174.
[14]	GB50007—2011,建筑地基基础设计规范[S].GB50007-2011,Code for design of building foundation [S].
[15]	徐乾. 桩板式挡土墙损伤识别及预警[D]. 重庆:重庆大学,2015.XU Qian. Damage identification and alarming for a pile plate retaining wall [D]. Chongqing: Chongqing University, 2015.
[16]	张永兴,刘世安,陈建功. 土体对悬臂挡墙模态的影响与应用[J]. 土木建筑与环境工程,2009,31(3): 72-77.ZHANG Yongxing, LIU Shi'an, CHEN Jiangong. Influence and its application of soil on the mode of cantilever retaining wall [J]. Journal of Civil, Architecture and Environment Engineering, 2009, 31(3): 72-77.
[17]	李广信,张丙印,于玉贞. 土力学[M]. 北京:清华大学出版社,2013: 135-136.
[18]	李爱群, 丁幼亮. 工程结构损伤预警理论及应用[M]. 北京: 科学出版社,2006:30-38.
[19]	丁幼亮, 李爱群, 邓杨. 面向结构损伤预警的小波包能量谱识别参数[J]. 东南大学学报:自然科学版, 2011, 41(4):824-848.DING Youliang, LI Aiqun, DENG Yang. Parameters for identification of wavelet packet energy spectrum for structural damage alarming [J]. Journal of Southeast University:Natural Science Edition, 2011, 41(4): 824-828.
[20]	刘礼标,张永兴,陈建功. 改进多种群遗传算法在墙土系统损伤识别中的应用[J]. 土木建筑与环境工程, 2013, 35(3):1-6.LIU Libiao, ZHANG Yongxing, CHEN Jiangong. Application of improved multi-population genetic algorithm damage identification of soil-wall system [J]. Journal of Civil, Architecture and Environment Engineering, 2013, 35(3): 1-6.

损伤状态下某桩板式挡土墙稳定性预警

Stability alarming for a pile plate retaining wall with damage

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