Use of photo-based 3D photogrammetry in analysing the results of laboratory pressure grouting tests

Wang, Q; Ye, X; Wang, S; Sloan, SW; Sheng, D

Use of photo-based 3D photogrammetry in analysing the results of laboratory pressure grouting tests

Wang, Q Ye, X Wang, S Sloan, SW Sheng, D

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Publisher:: SPRINGER HEIDELBERG
Publication Type:: Journal Article
Citation:: Acta Geotechnica, 2018, 13, (5), pp. 1129-1140
Issue Date:: 2018-10-01

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Field	Value	Language
dc.contributor.author	Wang, Q
dc.contributor.author	Ye, X
dc.contributor.author	Wang, S
dc.contributor.author	Sloan, SW
dc.contributor.author	Sheng, D https://orcid.org/0000-0002-1665-6931
dc.date.accessioned	2022-09-01T05:23:48Z
dc.date.available	2022-09-01T05:23:48Z
dc.date.issued	2018-10-01
dc.identifier.citation	Acta Geotechnica, 2018, 13, (5), pp. 1129-1140
dc.identifier.issn	1861-1125
dc.identifier.issn	1861-1133
dc.identifier.uri	http://hdl.handle.net/10453/161188
dc.description.abstract	This paper presents a non-destructive, low-cost, photo-based, 3D reconstruction technique for characterizing geo-materials with irregular shapes of a relatively large size. After being validated against two traditional volume measurement methods, namely the vernier caliper method and the fluid displacement method for regular and irregular shapes, respectively, 3D photogrammetry was used to analyse the grout bulbs formed in laboratory pressure grouting tests. The reconstructed 3D mesh model of the sample provides accurate and detailed 3D vertex data, which allowed the volume, densification efficiency and bleeding behaviour of the grout bulbs to be analysed. Comparing the bulb section views at different grouting pressures also offers an intuitive observation of the grout development and propagation process. Moreover, the 3D vertex data and surface area included in the model are of great importance in validating numerical predictions of the pressure grouting process and analysing the interface shear resistance of grouted soil nails or anchors. Compared to existing approaches, the new 3D photogrammetry method possesses several key advantages: (a) it does not require expensive, specialized equipment; (b) samples are not destroyed or modified during testing; (c) it allows to reconstruct objects of various scales and (d) the software is public domain. Therefore, the adoption of this 3D photogrammetry method will facilitate research in the pressure grouting process and can be extended to other problems in geotechnical engineering.
dc.language	English
dc.publisher	SPRINGER HEIDELBERG
dc.relation.ispartof	Acta Geotechnica
dc.relation.isbasedon	10.1007/s11440-017-0597-2
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Use of photo-based 3D photogrammetry in analysing the results of laboratory pressure grouting tests
dc.type	Journal Article
utslib.citation.volume	13
utslib.for	0905 Civil Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2022-09-01T05:23:45Z
pubs.issue	5
pubs.publication-status	Published
pubs.volume	13
utslib.citation.issue	5

Abstract:

This paper presents a non-destructive, low-cost, photo-based, 3D reconstruction technique for characterizing geo-materials with irregular shapes of a relatively large size. After being validated against two traditional volume measurement methods, namely the vernier caliper method and the fluid displacement method for regular and irregular shapes, respectively, 3D photogrammetry was used to analyse the grout bulbs formed in laboratory pressure grouting tests. The reconstructed 3D mesh model of the sample provides accurate and detailed 3D vertex data, which allowed the volume, densification efficiency and bleeding behaviour of the grout bulbs to be analysed. Comparing the bulb section views at different grouting pressures also offers an intuitive observation of the grout development and propagation process. Moreover, the 3D vertex data and surface area included in the model are of great importance in validating numerical predictions of the pressure grouting process and analysing the interface shear resistance of grouted soil nails or anchors. Compared to existing approaches, the new 3D photogrammetry method possesses several key advantages: (a) it does not require expensive, specialized equipment; (b) samples are not destroyed or modified during testing; (c) it allows to reconstruct objects of various scales and (d) the software is public domain. Therefore, the adoption of this 3D photogrammetry method will facilitate research in the pressure grouting process and can be extended to other problems in geotechnical engineering.

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http://hdl.handle.net/10453/161188