Deformation and Force Numerical Analysis of Deep Foundation Pit in Soil-Rock Dualistic Stratum

Guo Kang; Huang Cong; Zhang Huang; Ding Jianwen

doi:doi:10.11648/j.sd.20180606.31

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Deformation and Force Numerical Analysis of Deep Foundation Pit in Soil-Rock Dualistic Stratum

Guo Kang, Huang Cong, Zhang Huang, Ding Jianwen

Published in Science Discovery (Volume 6, Issue 6)

Received: 11 December 2018 Published: 12 December 2018

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Abstract

Based on the finite element calculation software Plaxis, the numerical simulation of the deep foundation pit of the Nanjing Metro Engineering Second-Bridge-Park Station was carried out. The calculation results were in good agreement with the monitoring values of the surface settlement 5m away from the foundation pit as well as two typical horizontal displacement of the pile, indicating the reliability of the model. The model was used to analyze the soil deformation, surface settlement, pile displacement and pile stress in the soil-rock combination stratum. The results showed that the pile deformation mainly occured in the soil part in the deep foundation pit of soil and rock combination stratum. Moreover, the maximum displacement was below the middle part of the soil part; the maximum surface settlement was located 0.35H away from the pile (H was of excavation depth); the sudden change of the pile body was basically at the boundary between the soil and the rock as well as the bottom part of the pit, which showed that the deformation of the foundation pit of the soil-rock combination stratum was closely related to the thickness of the soil layer and the excavation depth of the foundation pit. Numerical simulation using Plaxis software could provide a proof for the design and construction of foundation pits.

Published in	Science Discovery (Volume 6, Issue 6)
DOI	10.11648/j.sd.20180606.31
Page(s)	506-513
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

Soil-Rock Dualistic Stratum, Deep Excavation, Finite Element Method, Deformation of Foundation Pit, Force of Foundation Pit

References

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[4]	刘红军, 李东, 孙涛,等. 二元结构岩土基坑"吊脚桩"支护设计数值分析[J]. 土木建筑与环境工程, 2009, 31(5):43-48。
[5]	Long M. Database for Retaining Wall and Ground Movements due to Deep Excavations[J]. Journal of Geotechnical & Geoenvironmental Engineering, 2001, 127(3):203-224.
[6]	施有志, 林树枝, 赵花丽. 地铁深基坑开挖效应土体小应变参数敏感性分析——以厦门地区为例[J]. 工程地质学报, 2016, 24(6):1294-1301。
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[8]	刘红军, 孙玺, 姜德鸿. “二元”基坑中内支撑支护结构的三维数值分析与监测[J]. 中国海洋大学学报(自然科学版), 2012, 42(9):81-87。
[9]	刘红军, 于雅琼, 王秀海. 土岩组合地层旋喷桩止水桩锚支护基坑变形与受力数值分析[J]. 岩土工程学报, 2012, 34(s1):297-302。
[10]	Briaud J L, Lim Y. Tieback Walls in Sand: Numerical Simulation and Design Implications[J]. Journal of Geotechnical & Geoenvironmental Engineering, 1999, 125(2):101-110.
[11]	Wang S, Ling X, Song X, et al. Diaphragm wall deformation behaviors analysis of deep excavation in soft soil metro station[C]// International Conference on Electric Technology and Civil Engineering. IEEE, 2011:5856-5859.
[12]	刘红军, 王亚军, 姜德鸿,等. 土岩组合双排吊脚桩桩锚支护基坑变形数值分析[J]. 岩石力学与工程学报, 2011(s2):4099-4103。
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APA Style

Guo Kang, Huang Cong, Zhang Huang, Ding Jianwen. (2018). Deformation and Force Numerical Analysis of Deep Foundation Pit in Soil-Rock Dualistic Stratum. Science Discovery, 6(6), 506-513. https://doi.org/10.11648/j.sd.20180606.31

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ACS Style

Guo Kang; Huang Cong; Zhang Huang; Ding Jianwen. Deformation and Force Numerical Analysis of Deep Foundation Pit in Soil-Rock Dualistic Stratum. Sci. Discov. 2018, 6(6), 506-513. doi: 10.11648/j.sd.20180606.31

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AMA Style

Guo Kang, Huang Cong, Zhang Huang, Ding Jianwen. Deformation and Force Numerical Analysis of Deep Foundation Pit in Soil-Rock Dualistic Stratum. Sci Discov. 2018;6(6):506-513. doi: 10.11648/j.sd.20180606.31

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@article{10.11648/j.sd.20180606.31,
  author = {Guo Kang and Huang Cong and Zhang Huang and Ding Jianwen},
  title = {Deformation and Force Numerical Analysis of Deep Foundation Pit in Soil-Rock Dualistic Stratum},
  journal = {Science Discovery},
  volume = {6},
  number = {6},
  pages = {506-513},
  doi = {10.11648/j.sd.20180606.31},
  url = {https://doi.org/10.11648/j.sd.20180606.31},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20180606.31},
  abstract = {Based on the finite element calculation software Plaxis, the numerical simulation of the deep foundation pit of the Nanjing Metro Engineering Second-Bridge-Park Station was carried out. The calculation results were in good agreement with the monitoring values of the surface settlement 5m away from the foundation pit as well as two typical horizontal displacement of the pile, indicating the reliability of the model. The model was used to analyze the soil deformation, surface settlement, pile displacement and pile stress in the soil-rock combination stratum. The results showed that the pile deformation mainly occured in the soil part in the deep foundation pit of soil and rock combination stratum. Moreover, the maximum displacement was below the middle part of the soil part; the maximum surface settlement was located 0.35H away from the pile (H was of excavation depth); the sudden change of the pile body was basically at the boundary between the soil and the rock as well as the bottom part of the pit, which showed that the deformation of the foundation pit of the soil-rock combination stratum was closely related to the thickness of the soil layer and the excavation depth of the foundation pit. Numerical simulation using Plaxis software could provide a proof for the design and construction of foundation pits.},
 year = {2018}
}

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TY  - JOUR
T1  - Deformation and Force Numerical Analysis of Deep Foundation Pit in Soil-Rock Dualistic Stratum
AU  - Guo Kang
AU  - Huang Cong
AU  - Zhang Huang
AU  - Ding Jianwen
Y1  - 2018/12/12
PY  - 2018
N1  - https://doi.org/10.11648/j.sd.20180606.31
DO  - 10.11648/j.sd.20180606.31
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 506
EP  - 513
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20180606.31
AB  - Based on the finite element calculation software Plaxis, the numerical simulation of the deep foundation pit of the Nanjing Metro Engineering Second-Bridge-Park Station was carried out. The calculation results were in good agreement with the monitoring values of the surface settlement 5m away from the foundation pit as well as two typical horizontal displacement of the pile, indicating the reliability of the model. The model was used to analyze the soil deformation, surface settlement, pile displacement and pile stress in the soil-rock combination stratum. The results showed that the pile deformation mainly occured in the soil part in the deep foundation pit of soil and rock combination stratum. Moreover, the maximum displacement was below the middle part of the soil part; the maximum surface settlement was located 0.35H away from the pile (H was of excavation depth); the sudden change of the pile body was basically at the boundary between the soil and the rock as well as the bottom part of the pit, which showed that the deformation of the foundation pit of the soil-rock combination stratum was closely related to the thickness of the soil layer and the excavation depth of the foundation pit. Numerical simulation using Plaxis software could provide a proof for the design and construction of foundation pits.
VL  - 6
IS  - 6
ER  -

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Author Information

Guo Kang

School of Transportation, Southeast of University, Nanjing, China
Huang Cong

School of Transportation, Southeast of University, Nanjing, China
Zhang Huang

School of Transportation, Southeast of University, Nanjing, China
Ding Jianwen

School of Transportation, Southeast of University, Nanjing, China

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Plain Text BibTeX RIS

APA Style

Guo Kang, Huang Cong, Zhang Huang, Ding Jianwen. (2018). Deformation and Force Numerical Analysis of Deep Foundation Pit in Soil-Rock Dualistic Stratum. Science Discovery, 6(6), 506-513. https://doi.org/10.11648/j.sd.20180606.31

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ACS Style

Guo Kang; Huang Cong; Zhang Huang; Ding Jianwen. Deformation and Force Numerical Analysis of Deep Foundation Pit in Soil-Rock Dualistic Stratum. Sci. Discov. 2018, 6(6), 506-513. doi: 10.11648/j.sd.20180606.31

Copy | Download

AMA Style

Guo Kang, Huang Cong, Zhang Huang, Ding Jianwen. Deformation and Force Numerical Analysis of Deep Foundation Pit in Soil-Rock Dualistic Stratum. Sci Discov. 2018;6(6):506-513. doi: 10.11648/j.sd.20180606.31

Copy | Download

@article{10.11648/j.sd.20180606.31,
  author = {Guo Kang and Huang Cong and Zhang Huang and Ding Jianwen},
  title = {Deformation and Force Numerical Analysis of Deep Foundation Pit in Soil-Rock Dualistic Stratum},
  journal = {Science Discovery},
  volume = {6},
  number = {6},
  pages = {506-513},
  doi = {10.11648/j.sd.20180606.31},
  url = {https://doi.org/10.11648/j.sd.20180606.31},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20180606.31},
  abstract = {Based on the finite element calculation software Plaxis, the numerical simulation of the deep foundation pit of the Nanjing Metro Engineering Second-Bridge-Park Station was carried out. The calculation results were in good agreement with the monitoring values of the surface settlement 5m away from the foundation pit as well as two typical horizontal displacement of the pile, indicating the reliability of the model. The model was used to analyze the soil deformation, surface settlement, pile displacement and pile stress in the soil-rock combination stratum. The results showed that the pile deformation mainly occured in the soil part in the deep foundation pit of soil and rock combination stratum. Moreover, the maximum displacement was below the middle part of the soil part; the maximum surface settlement was located 0.35H away from the pile (H was of excavation depth); the sudden change of the pile body was basically at the boundary between the soil and the rock as well as the bottom part of the pit, which showed that the deformation of the foundation pit of the soil-rock combination stratum was closely related to the thickness of the soil layer and the excavation depth of the foundation pit. Numerical simulation using Plaxis software could provide a proof for the design and construction of foundation pits.},
 year = {2018}
}

Copy | Download

TY  - JOUR
T1  - Deformation and Force Numerical Analysis of Deep Foundation Pit in Soil-Rock Dualistic Stratum
AU  - Guo Kang
AU  - Huang Cong
AU  - Zhang Huang
AU  - Ding Jianwen
Y1  - 2018/12/12
PY  - 2018
N1  - https://doi.org/10.11648/j.sd.20180606.31
DO  - 10.11648/j.sd.20180606.31
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 506
EP  - 513
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20180606.31
AB  - Based on the finite element calculation software Plaxis, the numerical simulation of the deep foundation pit of the Nanjing Metro Engineering Second-Bridge-Park Station was carried out. The calculation results were in good agreement with the monitoring values of the surface settlement 5m away from the foundation pit as well as two typical horizontal displacement of the pile, indicating the reliability of the model. The model was used to analyze the soil deformation, surface settlement, pile displacement and pile stress in the soil-rock combination stratum. The results showed that the pile deformation mainly occured in the soil part in the deep foundation pit of soil and rock combination stratum. Moreover, the maximum displacement was below the middle part of the soil part; the maximum surface settlement was located 0.35H away from the pile (H was of excavation depth); the sudden change of the pile body was basically at the boundary between the soil and the rock as well as the bottom part of the pit, which showed that the deformation of the foundation pit of the soil-rock combination stratum was closely related to the thickness of the soil layer and the excavation depth of the foundation pit. Numerical simulation using Plaxis software could provide a proof for the design and construction of foundation pits.
VL  - 6
IS  - 6
ER  -

Copy | Download