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A novel image-based approach for interactive characterization of rock fracture spacing in a tunnel face
Chen, J; Chen, Y; Cohn, AG; Huang, H; Man, J; Wei, L. - : Elsevier, 2022
Abstract: This paper presents a novel integrated method for interactive characterization of fracture spacing in rock tunnel sections. The main procedure includes four steps: (1) Automatic extraction of fracture traces, (2) digitization of trace maps, (3) disconnection and grouping of traces, and (4) interactive measurement of fracture set spacing, total spacing, and surface rock quality designation (S-RQD) value. To evaluate the performance of the proposed method, sample images were obtained by employing a photogrammetry-based scheme in tunnel faces. Experiments were then conducted to determine the optimal parameter values (i.e. distance threshold, angle threshold, and number of fracture trace grouping) for characterizing rock fracture spacing. By applying the identified optimal parameters involved in the model, the proposed method could lead to excellent qualitative results to a new tunnel face. To perform a quantitative analysis, three methods (i.e. field, straightening, and the proposed method) were employed in the same study and comparisons were made. The proposed method agrees well with the field measurement in terms of the maximum and average values of measured spacing distribution. Overall, the proposed method has reasonably good accuracy and interactive advantage for estimating the ultimate fracture spacing and S-RQD. It can be a possible extension of existing methods for fracture spacing characterization for two-dimensional (2D) rock tunnel faces.
URL: https://eprints.whiterose.ac.uk/182736/
https://eprints.whiterose.ac.uk/182736/1/1-s2.0-S167477552100192X-main.pdf
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2
Activated Epithelial FGF8 Signaling Induces Fused Supernumerary Incisors ...
Chen, Y.; Wang, Z.; Lin, C.. - : SAGE Journals, 2021
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3
Activated Epithelial FGF8 Signaling Induces Fused Supernumerary Incisors ...
Chen, Y.; Wang, Z.; Lin, C.. - : SAGE Journals, 2021
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4
The trans-ancestral genomic architecture of glycemic traits
Chen, J; Spracklen, CN; Marenne, G. - : Nature Research, 2021
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5
The trans-ancestral genomic architecture of glycemic traits.
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6
A method for exploring word‐colour associations
Chen, Y; Yang, J; Pan, Q. - : Wiley, 2020
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7
Rethinking TESOL in Diverse Global Settings: The Language and the Teacher in a Time of Change
Chen, Y; Gao, X. - : OXFORD UNIV PRESS, 2020
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8
The cerebellum in frontotemporal dementia: a meta-analysis of neuroimaging studies
Chen, Y.; Kumfor, F.; Landin-Romero, R.. - : Springer, 2019
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9
DART: Distributed adaptive radix tree for efficient affix-based keyword search on HPC systems
Zhang, W; Tang, H; Byna, S. - : eScholarship, University of California, 2018
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10
A4 PERORAL ENDOSCOPIC MYOTOMY IS EFFECTIVE AND SAFE IN NON-ACHALASIA ESOPHAGEAL MOTILITY DISORDERS: AN INTERNATIONAL MULTICENTER STUDY
Khashab, M; Masckauchan, M; Familiari, P. - : Oxford University Press, 2018
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11
Psychometric properties of language assessments for children aged 4-12 years: A systematic review
Denman, D.; Speyer, Renee; Munro, N.. - : Frontiers Research Foundation, 2017
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12
THE JOINT INFLUENCE OF STRESS AND HEALTH ON COGNITIVE FUNCTIONS AMONG U.S. CHINESE OLDER ADULTS
Chen, Y.; Wang, J.; Zhang, R.. - : Oxford University Press, 2017
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13
Search for dark matter produced in association with heavy-flavor quark pairs in proton-proton collisions at [Formula: see text]
Sirunyan, A. M.; Tumasyan, A.; Adam, W.. - : Springer Berlin Heidelberg, 2017
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14
Examining radical position and function in Chinese character recognition using the repetition blindness paradigm
Chen, Y-C; Yeh, S-L. - 2016
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15
The ‘when’ and ‘where’ of semantic coding in the anterior temporal lobe: Temporal representational similarity analysis of electrocorticogram data
Chen, Y.; Shimotake, A.; Matsumoto, R.. - : Masson, 2016
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16
Quality Assurance of UMLS Semantic Type Assignments to SNOMED CT Concepts with the Use of SNOMED CT Hierarchies
Gu, H.; Chen, Y.; He, Z.. - 2015
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17
Spoken Knowledge Organization by Semantic Structuring and a Prototype Course Lecture System for Personalized Learning
In: Institute of Electrical and Electronics Engineers. IEEE transactions on audio, speech and language processing. - New York, NY : Inst. 22 (2014) 5, 883
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18
Spoken Language Understanding and Computational Semantics - Spoken Knowledge Organization by Semantic Structuring and a Prototype Course Lecture System for Personalized Learning
In: Institute of Electrical and Electronics Engineers. IEEE transactions on audio, speech and language processing. - New York, NY : Inst. 22 (2014) 5, 883-898
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19
Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton-proton collision data.
In: Symplectic Elements at Oxford ; Europe PubMed Central ; PubMed (http://www.ncbi.nlm.nih.gov/pubmed/) ; Web of Science (Lite) (http://apps.webofknowledge.com/summary.do) ; Scopus (http://www.scopus.com/home.url) ; CrossRef (2014)
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20
Task modulation of brain responses in visual word recognition as studied using EEG/MEG and fMRI
Chen, Y.; Davis, M. H.; Pulvermüller, F.. - : Frontiers Media S.A., 2013
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