Slope stability analysis based on real-time displacement measurements

Huafu Pei, Siqi Zhang, Lalit Borana, Yi Zhao, Jianhua Yin

Research output: Journal article publicationJournal articleAcademic researchpeer-review

46 Citations (Scopus)


This paper proposes an effective and convenient method to analyze slope stability in real time, which is based on fiber Bragg grating (FBG) sensors. First, a new type of FBG inclinometer is designed to capture the internal slope displacement variation considering temperature compensation, and an optimum displacement algorithm is selected by an experiment. Once the monitoring work is prepared, the potential slope slip surface is determined by monitored displacement in an optimization model based on the maximum displacement increment of the objective function. Finally, integral processing is used with the Bishop method to simplify the calculation, and a safety factor is estimated by the integral method. An experimental model test of homogeneous soil is conducted to verify the feasibility and reliability of the proposed analytical method and the FBG monitoring technique.

Original languageEnglish
Pages (from-to)686-693
Number of pages8
JournalMeasurement: Journal of the International Measurement Confederation
Publication statusPublished - Jan 2019


  • FBG
  • Limit equilibrium method
  • Optimization model
  • Real-time monitoring
  • Slope stability analysis

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering


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