journal article·2025-04-25Open access

The Comparative Behavior of Undisturbed Soft Clay Results Based on Photogrammetry and Numerical Simulation

Yi Zhang, Jungang Liu, Chunmei Mu, Zhibo Qiao, Mingliang Fan, Chunfan Liu

Applied Sciences· Volume 15· Issue 9

Abstract

Measuring the soil’s deformation and strength during loading is essential when evaluating saturated, undisturbed soft clays with the triaxial test apparatus. A photogrammetry method has been developed to measure total and localized volume changes on saturated, undisturbed soft clays during triaxial testing. In this study, an application of the photogrammetry method is presented by performing a series of triaxial tests with different confining pressures on saturated undisturbed soft clays. Three-dimensional numerical simulations of soft clay deformation are conducted using finite element analysis (FEM) software. The research paper showed that the photogrammetry method delivers a more accurate representation of the soil sample’s deformation, as conventional tests and simulations tend to overestimate the deviator stress values relative to photogrammetry slightly. The simulation from FEM results show a strong relationship with the localized deformation data obtained through photogrammetry. This photogrammetry method provides valuable theoretical insights and practical uses in engineering applications.
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Research context

OpenAlex topics: Soil and Unsaturated Flow · Geotechnical Engineering and Analysis · Landslides and related hazards

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Guangxi Key Laboratory of Green Building Materials and Construction Industrialization, Guilin 541004, China

College of Civil Engineering, Guilin University of Technology, Guilin 541004, China

School of Civil Engineering, Hubei Polytechnic University, Huangshi 435003, China

Funding

Guangxi Science and Technology Program · Hubei Provincial Department of Housing and Construction · Research Program of Hubei Polytechnic University · General Projects of Hubei Provincial Natural Science Foundation · Hubei Talent Project of Chutian Scholars, Hubei Key Talent Plan “Hundred People Plan”

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