Numerical Analysis of the Influence of Root Erosion on the Stability of Earthen Sites Under Static Load

Wang Yanwu; Tie Zheng; Pei Qiangqiang; Guo Qinglin

doi:10.3969/j.issn.1007-2993.2021.04.002

Volume 35 Issue 4

Aug. 2021

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Wang Yanwu, Tie Zheng, Pei Qiangqiang, Guo Qinglin. Numerical Analysis of the Influence of Root Erosion on the Stability of Earthen Sites Under Static Load[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2021, 35(4): 216-221, 227. doi: 10.3969/j.issn.1007-2993.2021.04.002

Citation:

Wang Yanwu, Tie Zheng, Pei Qiangqiang, Guo Qinglin. Numerical Analysis of the Influence of Root Erosion on the Stability of Earthen Sites Under Static Load[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2021, 35(4): 216-221, 227. doi: 10.3969/j.issn.1007-2993.2021.04.002

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Numerical Analysis of the Influence of Root Erosion on the Stability of Earthen Sites Under Static Load

doi: 10.3969/j.issn.1007-2993.2021.04.002

Wang Yanwu^{1, 3, 4
,},
Tie Zheng²,
Pei Qiangqiang^{1, 3},
Guo Qinglin^{1, 3, 4
,
,}

1.
Dunhuang Academy, Dunhuang 736200, Gansu, China
2.
Palace Museum, Beijing 100009, China
3.
Research Center for Conservation of Cultural Relics of Dunhuang, Dunhuang 736200, Gansu, China
4.
College of Civil Engineering and Mechanics, Lanzhou University, Key Laboratory of Mechanics on Disaster and Environment in Western China, The Ministry of Education of China, Lanzhou 730000, Gansu, China

Received Date: 2020-06-11
Publish Date: 2021-08-25

Abstract

Abstract

The stability of the Great Wall in Gulang County is taken as the research object. By using the finite difference software FLAC3D, the stability of the models with different root erosion depth of the Great Wall is analyzed under static forces, and the distribution of displacement and stress field of the different models are discussed. The results show that the overall deflection of the wall affected by the erosion, and the maximum horizontal displacement is located at the top of the wall. With the increase of the erosion depth, the compressive stress concentrates at the root of the erosion, and the tensile stress concentrates at the back of the wall. Under the action of dead load, when the erosion depth is 1/2 of the bottom width of the model, the wall reaches the critical failure threshold value. It can be used to guide engineering practice to establish a better fitting curve between erosion depth and safety factor and to judge the connectivity of plastic zone.
- earthen sites,
- root erosion,
- numerical simulation,
- stability analysis,
- heritage conservaiton

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[1]	李最雄. 丝绸之路古遗址保护[M]. 北京: 科学出版社, 2010.
[2]	王旭东. 土建筑遗址保护理念探索与实践−以交河故城保护为例[J]. 敦煌研究,2010,(6):1-9. doi: 10.3969/j.issn.1000-4106.2010.06.001
[3]	孙满利. 土遗址保护研究现状与进展[J]. 文物保护与考古科学,2007,19(4):64-70. doi: 10.3969/j.issn.1005-1538.2007.04.014
[4]	王旭东. 西北地区石窟与土建筑遗址保护研究的现状与任务[J]. 敦煌研究,2007,(5):6-11. doi: 10.3969/j.issn.1000-4106.2007.05.002
[5]	赵海英,李最雄,韩文峰,等. 西北干旱区土遗址的主要病害及成因[J]. 岩石力学与工程学报,2003,22(S2):2875-2880.
[6]	孙满利,李最雄,王旭东,等. 干旱区土遗址病害的分类研究[J]. 工程地质学报,2007,15(6):772-778. doi: 10.3969/j.issn.1004-9665.2007.06.009
[7]	孙满利,王旭东,李最雄. 西北地区土遗址病害[J]. 兰州大学学报(自然科学版),2010,46(6):41-45.
[8]	王旭东. 中国干旱环境中土遗址保护关键技术研究进展[J]. 敦煌研究,2008,(6):6-12. doi: 10.3969/j.issn.1000-4106.2008.06.002
[9]	黄克忠. 走向二十一世纪的中国文物科技保护[J]. 敦煌研究,2000,(1):5-9.
[10]	王旭东,石玉成,刘琨. 夯土长城墙体掏蚀失稳机理研究[J]. 西北地震学报,2011,33(S1):381-385.
[11]	崔凯,谌文武,韩文峰,等. 差异性风蚀作用下多元层状土质边坡演化机理[J]. 兰州大学学报(自然科学版),2011,47(1):37-42.
[12]	崔凯,朱彦鹏,谌文武,等. 高陡层状土质边坡风蚀失稳过程及机理研究[J]. 工程地质学报,2011,19(2):187-192. doi: 10.3969/j.issn.1004-9665.2011.02.007
[13]	程　佳. 交河故城崖体破坏机理及数值模拟[D]. 兰州: 兰州大学, 2009.
[14]	柴新军,林重德,杨泽平,等. 土钉技术补强土质古窑受拉破坏裂缝[J]. 岩土力学,2009,30(1):40-44. doi: 10.3969/j.issn.1000-7598.2009.01.006
[15]	吴礽骧. 河西汉塞调查与研究[M]. 北京: 文物出版社, 2005.
[16]	华夏子. 明长城考实[M]. 北京: 档案出版社, 1988.
[17]	杨文科. 浅谈古浪明长城的现状与保护[J]. 丝绸之路,2016,(18):70-71. doi: 10.3969/j.issn.1005-3115.2016.18.027
[18]	GB/T 36747—2018 干燥环境土遗址保护加固设计规范[S]. 北京: 中国标准出版社, 2018.
[19]	陈育民, 徐鼎平. FLAC/FLAC3D基础与工程实例[M]. 北京: 中国水利水电出版社, 2013.

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Numerical Analysis of the Influence of Root Erosion on the Stability of Earthen Sites Under Static Load

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