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Comparative analysis of pit deformation characteristics in typical region soft soil deposits of China

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Abstract

In this study, statistical analysis and numerical simulation based on Shanghai and Suzhou soft ground pit data is used to analyze the laws of maximum deflection of the diaphragm wall, maximum ground settlement, and their relationship. The results show that the deformation characteristics of pits are different in the two regions, and the deformation of pits in Shanghai is greater. The maximum deflection of the diaphragm wall ranges from 0.066 to 0.960 %H, and the average value is 0.364 %H in Shanghai. In Suzhou, maximum deflection ranges from 0.05 to 0.30 %H, and the average value is 0.16 %H. The maximum ground settlement in Shanghai spans from 0.079 to 0.510 %H, the average value is 0.248 %H, and it ranges from 0.03 to 0.168 %H. Meanwhile, the average value was 0.089 %H in Suzhou. These results provide a useful reference for the design and construction of excavation projects in both regions.

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Funding

The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (41702326), the National Postdoctoral Program for Innovative Talents (BX201700113), the China Postdoctoral Science Foundation (2017M620205), the Natural Science Foundation of Jiangxi Province (20171BAB206022), the State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining & Technology (SKLGDUEK1703), the Technology Project Founded by the Education Department of Jiangxi Province (GJJ160675), the Innovation Fund Designated for Graduate Students of Jiangxi Province (YC2018-S315), and the Innovative Experts, Long-term Program of Jiangxi Province.

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Authors and Affiliations

  1. School of Resources and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China

    Shijie Li, Zhen Huang, Kui Zhao, Hongwei Xu & Qing Fang

  2. School of Earth Sciences and Engineering, Nanjing University, Nanjing, 210023, Jiangsu, China

    Zhen Huang

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  1. Shijie Li
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  2. Zhen Huang
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  3. Kui Zhao
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  4. Hongwei Xu
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  5. Qing Fang
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Correspondence to Zhen Huang.

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Editorial handling: M. Karakus

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Li, S., Huang, Z., Zhao, K. et al. Comparative analysis of pit deformation characteristics in typical region soft soil deposits of China. Arab J Geosci 12, 376 (2019). https://doi.org/10.1007/s12517-019-4534-6

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  • DOI: https://doi.org/10.1007/s12517-019-4534-6

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