Landslide model tests with a miniature 2D principal stress sensor

Understanding the stress distribution derived from monitoring the principal stress (PS) in slopes is of great importance. In this study, a miniature sensor for quantifying the two-dimensional (2D) PS in landslide model tests is proposed. The fundamental principle and design of the sensor are demonst...

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Main Authors: Kun Fang, Yulei Fu, Huiming Tang, Tangzhe Gao, Pengju An, Qiong Wu
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Journal of Rock Mechanics and Geotechnical Engineering
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Online Access:http://www.sciencedirect.com/science/article/pii/S1674775524001392
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author Kun Fang
Yulei Fu
Huiming Tang
Tangzhe Gao
Pengju An
Qiong Wu
author_facet Kun Fang
Yulei Fu
Huiming Tang
Tangzhe Gao
Pengju An
Qiong Wu
author_sort Kun Fang
collection DOAJ
description Understanding the stress distribution derived from monitoring the principal stress (PS) in slopes is of great importance. In this study, a miniature sensor for quantifying the two-dimensional (2D) PS in landslide model tests is proposed. The fundamental principle and design of the sensor are demonstrated. The sensor comprises three earth pressure gages and one gyroscope, with the utilization of three-dimensional (3D) printing technology. The difficulties of installation location during model preparation and sensor rotation during testing can be effectively overcome using this sensor. Two different arrangements of the sensors are tested in verification tests. Additionally, the application of the sensor in an excavated-induced slope model is tested. The results demonstrate that the sensor exhibits commendable performance and achieves a desirable level of accuracy, with a principal stress angle error of ±5° in the verification tests. The stress transformation of the slope model, generated by excavation, is demonstrated in the application test by monitoring the two miniature principal stress (MPS) sensors. The sensor has a significant potential for measuring primary stress in landslide model tests and other geotechnical model experiments.
format Article
id doaj-art-ab7132b877c443fe96bb2cc14b75a775
institution Kabale University
issn 1674-7755
language English
publishDate 2025-01-01
publisher Elsevier
record_format Article
series Journal of Rock Mechanics and Geotechnical Engineering
spelling doaj-art-ab7132b877c443fe96bb2cc14b75a7752025-01-17T04:49:07ZengElsevierJournal of Rock Mechanics and Geotechnical Engineering1674-77552025-01-0117194105Landslide model tests with a miniature 2D principal stress sensorKun Fang0Yulei Fu1Huiming Tang2Tangzhe Gao3Pengju An4Qiong Wu5Faculty of Engineering, China University of Geosciences, Wuhan, 430074, ChinaFaculty of Engineering, China University of Geosciences, Wuhan, 430074, ChinaFaculty of Engineering, China University of Geosciences, Wuhan, 430074, China; Corresponding author.Faculty of Engineering, China University of Geosciences, Wuhan, 430074, ChinaInstitute of Rock Mechanics, Ningbo University, Ningbo, 315211, ChinaBadong National Observation and Research Station of Geohazards, China University of Geosciences, Wuhan, 430074, ChinaUnderstanding the stress distribution derived from monitoring the principal stress (PS) in slopes is of great importance. In this study, a miniature sensor for quantifying the two-dimensional (2D) PS in landslide model tests is proposed. The fundamental principle and design of the sensor are demonstrated. The sensor comprises three earth pressure gages and one gyroscope, with the utilization of three-dimensional (3D) printing technology. The difficulties of installation location during model preparation and sensor rotation during testing can be effectively overcome using this sensor. Two different arrangements of the sensors are tested in verification tests. Additionally, the application of the sensor in an excavated-induced slope model is tested. The results demonstrate that the sensor exhibits commendable performance and achieves a desirable level of accuracy, with a principal stress angle error of ±5° in the verification tests. The stress transformation of the slope model, generated by excavation, is demonstrated in the application test by monitoring the two miniature principal stress (MPS) sensors. The sensor has a significant potential for measuring primary stress in landslide model tests and other geotechnical model experiments.http://www.sciencedirect.com/science/article/pii/S1674775524001392LandslideModel testPrincipal stress (PS)Stress measurement
spellingShingle Kun Fang
Yulei Fu
Huiming Tang
Tangzhe Gao
Pengju An
Qiong Wu
Landslide model tests with a miniature 2D principal stress sensor
Journal of Rock Mechanics and Geotechnical Engineering
Landslide
Model test
Principal stress (PS)
Stress measurement
title Landslide model tests with a miniature 2D principal stress sensor
title_full Landslide model tests with a miniature 2D principal stress sensor
title_fullStr Landslide model tests with a miniature 2D principal stress sensor
title_full_unstemmed Landslide model tests with a miniature 2D principal stress sensor
title_short Landslide model tests with a miniature 2D principal stress sensor
title_sort landslide model tests with a miniature 2d principal stress sensor
topic Landslide
Model test
Principal stress (PS)
Stress measurement
url http://www.sciencedirect.com/science/article/pii/S1674775524001392
work_keys_str_mv AT kunfang landslidemodeltestswithaminiature2dprincipalstresssensor
AT yuleifu landslidemodeltestswithaminiature2dprincipalstresssensor
AT huimingtang landslidemodeltestswithaminiature2dprincipalstresssensor
AT tangzhegao landslidemodeltestswithaminiature2dprincipalstresssensor
AT pengjuan landslidemodeltestswithaminiature2dprincipalstresssensor
AT qiongwu landslidemodeltestswithaminiature2dprincipalstresssensor