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Experimental Study on Distribution of Landslide Thrust in Pile-Anchor Structure based on Photoelastic Technique

This paper aimed to perform systematical study on the distribution of landslide thrust in pile-anchor support system, which has been a widely applicable treatment method in landslide control with safety, highly efficiency and adaptation. The advantage of photoelastic technique is visualization of st...

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Autores principales: Li, Xunchang, Xu, Rui, Yang, Wei, Li, Pingan, Yang, Ke, Zhang, Wenyong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7142552/
https://www.ncbi.nlm.nih.gov/pubmed/32192167
http://dx.doi.org/10.3390/ma13061358
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author Li, Xunchang
Xu, Rui
Yang, Wei
Li, Pingan
Yang, Ke
Zhang, Wenyong
author_facet Li, Xunchang
Xu, Rui
Yang, Wei
Li, Pingan
Yang, Ke
Zhang, Wenyong
author_sort Li, Xunchang
collection PubMed
description This paper aimed to perform systematical study on the distribution of landslide thrust in pile-anchor support system, which has been a widely applicable treatment method in landslide control with safety, highly efficiency and adaptation. The advantage of photoelastic technique is visualization of strain and stress fields, therefore photoelastic model tests are conducted to show the distribution of landslide thrust in pile-anchor structure before failure in landslide. The effects of different materials and pile lengths are investigated by 6 photoelastic test cases under different loading conditions. It can be found from quantitative analysis of experimental results that load proportion of anchor would increase gradually with the decrease of pile embedded depth or the increase of landslide thrust force. Meanwhile, landslide thrust distribution in pile-anchor structure is directly affected by the stiffness of piles. The pile-anchor structure is significantly better at reducing bending moment value and optimizing bending moment distribution of pile. Finally, some theoretical analysis and design suggestions are proposed based on the experimental study.
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spelling pubmed-71425522020-04-15 Experimental Study on Distribution of Landslide Thrust in Pile-Anchor Structure based on Photoelastic Technique Li, Xunchang Xu, Rui Yang, Wei Li, Pingan Yang, Ke Zhang, Wenyong Materials (Basel) Article This paper aimed to perform systematical study on the distribution of landslide thrust in pile-anchor support system, which has been a widely applicable treatment method in landslide control with safety, highly efficiency and adaptation. The advantage of photoelastic technique is visualization of strain and stress fields, therefore photoelastic model tests are conducted to show the distribution of landslide thrust in pile-anchor structure before failure in landslide. The effects of different materials and pile lengths are investigated by 6 photoelastic test cases under different loading conditions. It can be found from quantitative analysis of experimental results that load proportion of anchor would increase gradually with the decrease of pile embedded depth or the increase of landslide thrust force. Meanwhile, landslide thrust distribution in pile-anchor structure is directly affected by the stiffness of piles. The pile-anchor structure is significantly better at reducing bending moment value and optimizing bending moment distribution of pile. Finally, some theoretical analysis and design suggestions are proposed based on the experimental study. MDPI 2020-03-17 /pmc/articles/PMC7142552/ /pubmed/32192167 http://dx.doi.org/10.3390/ma13061358 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Xunchang
Xu, Rui
Yang, Wei
Li, Pingan
Yang, Ke
Zhang, Wenyong
Experimental Study on Distribution of Landslide Thrust in Pile-Anchor Structure based on Photoelastic Technique
title Experimental Study on Distribution of Landslide Thrust in Pile-Anchor Structure based on Photoelastic Technique
title_full Experimental Study on Distribution of Landslide Thrust in Pile-Anchor Structure based on Photoelastic Technique
title_fullStr Experimental Study on Distribution of Landslide Thrust in Pile-Anchor Structure based on Photoelastic Technique
title_full_unstemmed Experimental Study on Distribution of Landslide Thrust in Pile-Anchor Structure based on Photoelastic Technique
title_short Experimental Study on Distribution of Landslide Thrust in Pile-Anchor Structure based on Photoelastic Technique
title_sort experimental study on distribution of landslide thrust in pile-anchor structure based on photoelastic technique
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7142552/
https://www.ncbi.nlm.nih.gov/pubmed/32192167
http://dx.doi.org/10.3390/ma13061358
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