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January 18, 2026International Journal for Numerical and Analytical Methods in Geomechanics0 citations

Ground Settlement and Mechanical Response During Deep Excavation in Soft Soils

Ground Settlement and Mechanical Response of a Deep Excavation in Soft Soils: A Field and Semi‐Analytical‐Based Case Study in Shenzhen, China

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Authors

XOXueFeng OuXTXiaolong TangXZXiangcou Zheng

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Overview

Field case study evaluates ground settlement in soft soils, emphasizing dewatering impacts during construction.

Key Points

  • This study aims to assess ground settlement and mechanical behavior during deep excavations in soft soils.
  • Analyzed the deep excavation process at Shenzhen Metro Chegongmiao Station.
  • Developed a predictive method using the Mindlin solution and Source-Sink Imaging method.
  • Employed nonlinear fitting to derive the dewatering curve and quantify groundwater influence.
  • Calculated seepage volumetric forces related to soil excavation and diaphragm wall construction.
  • Settlement contributed 12 mm from diaphragm wall construction, representing 44% of the total displacement.
  • Settlement curves varied across different construction stages.
  • Maximum surface settlement occurred at the point farthest from the excavation site.
  • Slurry density significantly impacted settlement, with effects up to 30 times larger than other variables.

Cite This Study

Ou et al. (2026) studied this question.

synapsesocial.com/papers/696c7817eb60fb80d1396599https://doi.org/10.1002/nag.70242
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