Preliminary study on influences of model container constraint on large-deformation failure behaviors by centrifuge modeling

XU Guangming; WANG Nianxiang; GU Xingwen; REN Guofeng; ZHOU Chun'er; WU Jiawu

doi:10.11779/CJGE20220442

Volume 45 Issue 2

Turn off MathJax

Article Contents

Abstract

References

Chinese Journal of Geotechnical Engineering > 2023 > 45(2): 232-242. > DOI: 10.11779/CJGE20220442

XU Guangming, WANG Nianxiang, GU Xingwen, REN Guofeng, ZHOU Chun'er, WU Jiawu. Preliminary study on influences of model container constraint on large-deformation failure behaviors by centrifuge modeling[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(2): 232-242. DOI: 10.11779/CJGE20220442

Citation:

PDF (3591 KB)

Preliminary study on influences of model container constraint on large-deformation failure behaviors by centrifuge modeling

XU Guangming^{1, 2,},
WANG Nianxiang^{1, 2},
GU Xingwen^{1, 2},
REN Guofeng^{1, 2},
ZHOU Chun'er³,
WU Jiawu³

1.
Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210029, China
2.
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing 210029, China
3.
Guangdong Province Planning and Design Institute for Water Transportation Co., LTD., Guangzhou 510050, China

More Information

Received Date: April 13, 2022
Available Online: February 23, 2023

Graphical Abstract

Abstract

Abstract

In the centrifugal model tests, the scaled model must be placed in the model container to withstand the action of supergravity field. The friction of the container wall and the normal limit constraint must exert an undesired influence on the displacement and deformation behaviors, especially its large-deformation failure behaviors. A large plane strain model container is utilized in the centrifugal model tests in an attempt to represent a large-deformation lateral translation collapse, which occurs in a bulk cargo wharf yard ground during filling of ore heap on trial. The filling process of ore heap on trial is simulated twice, and the normal limit constraint on the left end wall is partially released in the second running. The ultimate bearing capacity of the storage yard ground measured by the two tests is close. However, it is found that the failure degree of lateral translation collapse is significantly different in the two tests. The maximum displacement of the first running is 1 m, and that of the second running is 5.5 m, but still smaller than the prototype 20 m. It is noticed that the normal limit constraint on the end wall seriously affects the model failure behaviors. Partially releasing the normal limit constraint on the end wall, to a certain extent, helps to reproduce large-deformation failure phenomena in prototype. The main cause for significant difference in failure degree between the model and the prototype is that a three-dimensional large-deformation damage problem in the prototype is simplified into a two-dimensional plane strain problem to be simulated. The length simulated by container width is much smaller than that of the prototype collapse, resulting in that the model soil failure lacks enough soil supply as in the prototype so that the advanced distance and severity of soil failure of the model is much less than those of the prototype. Therefore, the influences of the above constraints of the model container must be fully considered in the centrifugal model tests on large-deformation failure.
- model container,
- boundary constraint,
- terminal yard ground,
- large deformation failure,
- centrifugal model test

FullText(HTML)

References (17)

References

[1]	OVESEN K. The use of physical models in design: The scaling law relationships[C]// Proceedings of 7th European Conference on Soil Mechanics and Foundation Engineering. Brightton, 1979, 4: 318-323.
[2]	徐光明, 章为民. 离心模型中的粒径效应和边界效应研究[J]. 岩土工程学报, 1996, 18(3): 80-86. http://cge.nhri.cn/cn/article/id/9029 XU Guangming, ZHANG Weimin. Study on particle size effect and boundary effect in centrifugal model[J]. Chinese Journal of Geotechnical Engineering, 1996, 18(3): 80-86. (in Chinese) http://cge.nhri.cn/cn/article/id/9029
[3]	FELD T, BLOOMQUIST D, TOWNSEND F C. Investigation of geostatic stresses in a limited sized centrifuge model container [C]// Proceedings of the International Conference Centrifuge 1991. Boulder Colorado, 1991: 569-572.
[4]	MALUSHITSKY Y N. The Centrifugal Model Testing of Waste-heap Embankments[M]. London: Cambridge University Press, 1975: 5-11.
[5]	徐光明, 章为民, 蔡飞, 等. 岸坡稳定的离心模型试验和有限元计算分析[J]. 水利水运科学研究, 1995(4): 394-404. https://www.cnki.com.cn/Article/CJFDTOTAL-SLSY504.007.htm XU Guangming, ZHANG Weimin, CAI Fei, et al. Centrifugal model test and finite element analysis of stability for bank slopes[J]. Journal of Nanjing Hydraulic Research Institute, 1995(4): 394-404. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SLSY504.007.htm
[6]	徐光明, 高长胜, 张凌, 等. 软土地基上堤防稳定性研究[J]. 岩石力学与工程学报, 2005, 24(13): 2315-2321. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200513019.htm XU Guangming, GAO Changsheng, ZHANG Ling, et al. Preliminary study of stability of levee on soft ground[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(13): 2315-2321. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200513019.htm
[7]	中交第四航务工程勘察设计院有限公司. 湛江港霞山港区散货码头工程工程地质勘察报告(初步设计阶段)[R]. 广州: 中交第四航务工程勘察设计院有限公司, 2008. CCCC Fourth Habour Engineering Investigation and Design Institute Co., LTD. Engineering Geological Survey Report of Bulk Cargo Terminal Engineering in Xiashan Port area of Zhanjiang Port (Preliminary design stage) [R]. Guangzhou: CCCC Fourth Habour Engineering Investigation and Design Institute Co., LTD, 2008. (in Chinese)
[8]	中交第四航务工程勘察设计院有限公司. 《湛江港霞山港区散货码头工程堆取料机轨道基础(含南柳河加固优化设计)补充钻探岩土工程勘察报告》(施工图设计阶段)[R]. 广州: 中交第四航务工程勘察设计院有限公司, 2013. CCCC Fourth Habour Engineering Investigation and Design Institute Co., LTD. Investigation Report of Geotechnical Engineering of Supplementary Drilling for Stacker-Reaper Track Foundation of Bulk Cargo Wharf Engineering in Xiashan Port area of Zhanjiang Port (including Reinforcement and Optimization Design of Nanliuhe River) (Construction drawing design stage) [R]. Guangzhou: CCCC Fourth Habour Engineering Investigation and Design Institute Co., LTD, 2013. (in Chinese)
[9]	中交第四航务工程勘察设计院有限公司. 湛江港霞山港区散货码头工程(14~16#堆场)工程地质勘察报告(施工图设计阶段)[R]. 广州: 中交第四航务工程勘察设计院有限公司, 2017. CCCC Fourth Habour Engineering Investigation and Design Institute Co., LTD. Engineering Geological Survey Report of Bulk Cargo Terminal Engineering (14-16 # Yard) of Zhanjiang Port Xiashan Port area (Construction drawing design stage) [R]. Guangzhou: CCCC Fourth Habour Engineering Investigation and Design Institute Co., LTD, 2017. (in Chinese)
[10]	中交第四航务工程勘察设计院有限公司. 湛江港散货码头16#堆场修复工程岩土工程勘察报告(施工图设计阶段)[R]. 广州: 中交第四航务工程勘察设计院有限公司, 2017. CCCC Fourth Habour Engineering Investigation and Design Institute Co., LTD. Geotechnical Engineering Investigation Report of No. 16 Yard Restoration Project of Zhanjiang Port Bulk Cargo Terminal (Construction drawing design stage) [R]. Guangzhou: CCCC Fourth Habour Engineering Investigation and Design Institute Co, LTD, 2017. (in Chinese)
[11]	钱家欢. 土力学[M]. 南京: 河海大学出版社, 1988. QIAN Jiahuan. Soil Mechanics[M]. Nanjing: Hohai University Press, 1988. (in Chinese)
[12]	BUDHU M. Soil Mechanics and Foundations[M]. New York: John Wiley & Sons, Inc, 1999.
[13]	武汉港湾工程质量检测有限公司. 散货码头14#、15#、16#堆场检测报告[R]. 武汉: 武汉港湾工程质量检测有限公司, 2017. Wuhan Harbor Engineering Quality Inspection Co, LTD. Bulk Cargo Terminal 14#, 15#, 16# Yard Inspection Report [R]. Wuhan: Wuhan Harbor Engineering Quality Inspection Co, LTD, 2017. (in Chinese)
[14]	蔡正银, 徐光明. 港口工程离心模拟技术[M]. 北京: 科学出版社, 2020. CAI Zhengyin, XU Guangming. Centrifugal Simulation Technology of Port Engineering[M]. Beijing: Science Press, 2020. (in Chinese)
[15]	朱维新, 易进栋. 用离心模型技术研究深圳五湾重力式码头坍塌原因[R]. 南京: 南京水利科学研究院, 1987. ZHU Weixin, YI Jindong. Investigation of the collapse cause of Shenzhen Wuwan gravity wharf by means of centrifuge model testing[R]. Nanjing: Nanjing Hydraulic Research Institute, 1987. (in Chinese)
[16]	蒋敏敏, 徐光明, 顾行文. 离心模型试验饱和黏性土制备和固结分析[C]// 第25届全国土工测试学术研讨会, 杭州, 2008. JIANG Minmin, XU Guangming, GU Xingwen. Analysis on preparation and consolidation of saturated clay for centrifugal model test[C]// Proceedings of 25th National Symposium on New Geotechnical Testing, Hangzhou, 2008. (in Chinese)
[17]	顾行文, 徐光明, 蔡正银, 等. 人工岛软基处理离心模型试验研究[J]. 水利与建筑工程学报, 2010, 8(4): 126-130. https://www.cnki.com.cn/Article/CJFDTOTAL-FSJS201004038.htm GU Xingwen, XU Guangming, CAI Zhengyin, et al. Research on soft ground treatment of artificial island by means of centrifugal model test[J]. Journal of Water Resources and Architectural Engineering, 2010, 8(4): 126-130. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-FSJS201004038.htm