A new approach for the fracture grouting pressure in soil mass

This study focuses on analytical solutions of the fracture grouting pressure. Based on the cavity expansion and fracture grouting mechanism, the small deformation in the elastic zone, large deformation in the plastic zone, and non-associated flow rules are assumed. The solutions of the fracture grou...

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Main Authors: Zhi-bin Wang, Jin-feng Zou, Hai Yang
Format: Article
Language:English
Published: SAGE Publishing 2018-07-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1177/1687814018786435
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author Zhi-bin Wang
Jin-feng Zou
Hai Yang
author_facet Zhi-bin Wang
Jin-feng Zou
Hai Yang
author_sort Zhi-bin Wang
collection DOAJ
description This study focuses on analytical solutions of the fracture grouting pressure. Based on the cavity expansion and fracture grouting mechanism, the small deformation in the elastic zone, large deformation in the plastic zone, and non-associated flow rules are assumed. The solutions of the fracture grouting pressure based on the Unified Strength failure criterion, spatial mobilized plane criterion, Mohr–Coulomb failure criterion, and modified Cambridge model (MMC) are proposed for the large-deformation and small-deformation assumptions, respectively. A parameter analysis was conducted to analyze the differences between large-deformation and small-deformation theories. A comparison of the local test data with theoretical results reveals that the Cambridge model is more suitable for weakly consolidated soil and that the Mohr–Coulomb theory is suitable for over-consolidated soil. For all yield criteria in the study, the analysis indicates that the large-deformation theory has more reliable results than the small-deformation theory. The results in this study can direct the design and operation of fracture grouting.
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spelling doaj.art-f49f2a7b77e94ceeaed99f957e6205c72022-12-22T00:05:13ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402018-07-011010.1177/1687814018786435A new approach for the fracture grouting pressure in soil massZhi-bin Wang0Jin-feng Zou1Hai Yang2School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, ChinaSchool of Civil Engineering, Central South University, Changsha, ChinaChinese Academy of Engineering Physics, Mianyang, ChinaThis study focuses on analytical solutions of the fracture grouting pressure. Based on the cavity expansion and fracture grouting mechanism, the small deformation in the elastic zone, large deformation in the plastic zone, and non-associated flow rules are assumed. The solutions of the fracture grouting pressure based on the Unified Strength failure criterion, spatial mobilized plane criterion, Mohr–Coulomb failure criterion, and modified Cambridge model (MMC) are proposed for the large-deformation and small-deformation assumptions, respectively. A parameter analysis was conducted to analyze the differences between large-deformation and small-deformation theories. A comparison of the local test data with theoretical results reveals that the Cambridge model is more suitable for weakly consolidated soil and that the Mohr–Coulomb theory is suitable for over-consolidated soil. For all yield criteria in the study, the analysis indicates that the large-deformation theory has more reliable results than the small-deformation theory. The results in this study can direct the design and operation of fracture grouting.https://doi.org/10.1177/1687814018786435
spellingShingle Zhi-bin Wang
Jin-feng Zou
Hai Yang
A new approach for the fracture grouting pressure in soil mass
Advances in Mechanical Engineering
title A new approach for the fracture grouting pressure in soil mass
title_full A new approach for the fracture grouting pressure in soil mass
title_fullStr A new approach for the fracture grouting pressure in soil mass
title_full_unstemmed A new approach for the fracture grouting pressure in soil mass
title_short A new approach for the fracture grouting pressure in soil mass
title_sort new approach for the fracture grouting pressure in soil mass
url https://doi.org/10.1177/1687814018786435
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