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Title: Experimental Investigation of Laws during Deformation of Circular Roadway in 10° Inclined Layered Rock

Abstract

In order to analyze the deformation characteristics and mechanisms caused by high tectonic stress in gentle dip strata, a physical modeling with circular tunnel was designed. The model was constructed by the so-called “Physically Finite Elemental Slab Assemblage (PFESA)” to bring about the structural effect of the deep strata. The gravity was fixed while the lateral pressure increased step by step to mimic high tectonic stress. In order to observe the displacement in different area, the sketches of monitoring points and frame in the model surface were drawn down through video pictures in different periods and to be compared. For the sake of analyzing the deformation and failure mechanism of layers, rock structural mechanics models were set up for the left side and right side in the same stratum, respectively. For verifying the experimental phenomenon and its mechanism, infrared images were utilized based on the temperature variation mechanisms of material. Through systematic study, this paper enriches the research methods of model test and can provide a certain reference for practical engineering of similar conditions.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [2];  [1];  [1]
+ Show Author Affiliations
  1. State Key Lab. for Geomechanics & Deep Underground Engineering, Beijing (China); China Univ. of Mining & Technology, Beijing (China)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1580078
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Advances in Materials Science and Engineering
Additional Journal Information:
Journal Volume: 2017; Journal ID: ISSN 1687-8434
Publisher:
Hindawi
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Sun, Xiaoming, Han, Qiang, Zhang, Yingqi, Liu, Xin, and Gong, Weili. Experimental Investigation of Laws during Deformation of Circular Roadway in 10° Inclined Layered Rock. United States: N. p., 2017. Web. doi:10.1155/2017/3503602.
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Sun, Xiaoming, Han, Qiang, Zhang, Yingqi, Liu, Xin, & Gong, Weili. Experimental Investigation of Laws during Deformation of Circular Roadway in 10° Inclined Layered Rock. United States. https://doi.org/10.1155/2017/3503602
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Sun, Xiaoming, Han, Qiang, Zhang, Yingqi, Liu, Xin, and Gong, Weili. Thu . "Experimental Investigation of Laws during Deformation of Circular Roadway in 10° Inclined Layered Rock". United States. https://doi.org/10.1155/2017/3503602. https://www.osti.gov/servlets/purl/1580078.
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@article{osti_1580078,
title = {Experimental Investigation of Laws during Deformation of Circular Roadway in 10° Inclined Layered Rock},
author = {Sun, Xiaoming and Han, Qiang and Zhang, Yingqi and Liu, Xin and Gong, Weili},
abstractNote = {In order to analyze the deformation characteristics and mechanisms caused by high tectonic stress in gentle dip strata, a physical modeling with circular tunnel was designed. The model was constructed by the so-called “Physically Finite Elemental Slab Assemblage (PFESA)” to bring about the structural effect of the deep strata. The gravity was fixed while the lateral pressure increased step by step to mimic high tectonic stress. In order to observe the displacement in different area, the sketches of monitoring points and frame in the model surface were drawn down through video pictures in different periods and to be compared. For the sake of analyzing the deformation and failure mechanism of layers, rock structural mechanics models were set up for the left side and right side in the same stratum, respectively. For verifying the experimental phenomenon and its mechanism, infrared images were utilized based on the temperature variation mechanisms of material. Through systematic study, this paper enriches the research methods of model test and can provide a certain reference for practical engineering of similar conditions.},
doi = {10.1155/2017/3503602},
journal = {Advances in Materials Science and Engineering},
number = ,
volume = 2017,
place = {United States},
year = {Thu May 18 00:00:00 EDT 2017},
month = {Thu May 18 00:00:00 EDT 2017}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1155/2017/3503602
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Infrared thermographic techniques for non-destructive damage characterization of carbon fibre reinforced polymers during tensile fatigue testing
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Thermography analysis of a roadway excavation experiment in 60° inclined stratified rocks
journal, June 2013

Simulation of progressive fracturing processes around underground excavations under biaxial compression
journal, May 2005

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