Towards microstructure-based analysis and design for seepage water in underground engineering: effect of image characteristics

Yong Hu, Yun An Li, Jun Lin Lin, Cheng Ke Ruan, Shu Jian Chen, Hui Ming Tang, Wen Hui Duan

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1 Citation (Scopus)

Abstract

Numerical modelling has been one of the most effective approaches for predicting seepage in tunnelling and underground projects. However, the applicability of such numerical simulation heavily relies on the information available for the properties of earth materials on site. Therefore, earth material property predictions based on imaging their microstructure has become a widely interested field. Despite the board use of various advanced imaging techniques to obtain information about the microstructure, there is still a lack of knowledge on the effect of image characteristics. By using high-resolution 2D Lattice Boltzmann method flow simulations, this paper quantified the impact of different image characteristics on the seepage-related property of silty clay. In order to guide future numerical simulations of seepage in tunnelling and underground construction, recommendations were given for proper image requisition in the microstructure-based analysis.

Original languageEnglish
Article number103086
Number of pages9
JournalTunnelling and Underground Space Technology
Volume93
DOIs
Publication statusPublished - Nov 2019

Keywords

  • Imaging
  • Lattice Boltzmann method
  • Microstructure
  • Numerical simulation
  • Seepage water
  • Silty clay

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