Material Preparation and Geotechnical Properties of Transparent Cemented Soil for Physical Modeling

The preparation of transparent materials suitable for simulating different rock and soil masses is the foundation for image-based physical modeling tests in studying deformation and failure mechanisms in geotechnical media. A transparent cemented soil (TCS) with similar geotechnical properties of na...

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Autores principales:	Xianlun Leng, Chuan Wang, Rong Pang, Qian Sheng, Jian Chen
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	transparent cemented soil hydrophobic fumed silica powder fused quartz preparation method triaxial shear test strength characteristics Technology T
Acceso en línea:	https://doaj.org/article/4937b5da60814d5bb44e32b6b45b1625
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spelling	oai:doaj.org-article:4937b5da60814d5bb44e32b6b45b16252021-11-30T22:44:02ZMaterial Preparation and Geotechnical Properties of Transparent Cemented Soil for Physical Modeling2296-801610.3389/fmats.2021.740388https://doaj.org/article/4937b5da60814d5bb44e32b6b45b16252021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmats.2021.740388/fullhttps://doaj.org/toc/2296-8016The preparation of transparent materials suitable for simulating different rock and soil masses is the foundation for image-based physical modeling tests in studying deformation and failure mechanisms in geotechnical media. A transparent cemented soil (TCS) with similar geotechnical properties of natural soil and soft rock was prepared using fused quartz as the skeleton, hydrophobic fumed silica powder as the cement and mixed mineral oil of 15# white oil and n-dodecane as the pore fluid. Eleven groups of TCS samples with different shear strengths were synthesized by adjusting the content or mass ratio of the cement and particle size or gradation of the skeleton. Contrasting tests of unconsolidated-undrained triaxial compression were carried out and the mechanical characteristics of TCS were analyzed, showing that the stress-strain relationship, shear strength and failure mode of TCS are similar to those of natural soil. The mechanical parameters of TCS undergo complex variation with the factors, and the mesoscopic mechanism of the changes therein was revealed with the help of optical microscope photos. The similarity ratio of TCS to soft rock was derived according to geometries and stress conditions of laboratory model tests, demonstrating the feasibility of using TCS as similar materials to soft rock. Moreover, empirical formulas for the change of shear strength parameters with the factors were fitted to facilitate the preparation of TCS with target shear strength in the future. The findings can provide a basis for preparing transparent similar materials to natural soil and soft rock in physical modeling tests.Xianlun LengXianlun LengChuan WangChuan WangRong PangQian ShengQian ShengJian ChenJian ChenFrontiers Media S.A.articletransparent cemented soilhydrophobic fumed silica powderfused quartzpreparation methodtriaxial shear teststrength characteristicsTechnologyTENFrontiers in Materials, Vol 8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	transparent cemented soil hydrophobic fumed silica powder fused quartz preparation method triaxial shear test strength characteristics Technology T
spellingShingle	transparent cemented soil hydrophobic fumed silica powder fused quartz preparation method triaxial shear test strength characteristics Technology T Xianlun Leng Xianlun Leng Chuan Wang Chuan Wang Rong Pang Qian Sheng Qian Sheng Jian Chen Jian Chen Material Preparation and Geotechnical Properties of Transparent Cemented Soil for Physical Modeling
description	The preparation of transparent materials suitable for simulating different rock and soil masses is the foundation for image-based physical modeling tests in studying deformation and failure mechanisms in geotechnical media. A transparent cemented soil (TCS) with similar geotechnical properties of natural soil and soft rock was prepared using fused quartz as the skeleton, hydrophobic fumed silica powder as the cement and mixed mineral oil of 15# white oil and n-dodecane as the pore fluid. Eleven groups of TCS samples with different shear strengths were synthesized by adjusting the content or mass ratio of the cement and particle size or gradation of the skeleton. Contrasting tests of unconsolidated-undrained triaxial compression were carried out and the mechanical characteristics of TCS were analyzed, showing that the stress-strain relationship, shear strength and failure mode of TCS are similar to those of natural soil. The mechanical parameters of TCS undergo complex variation with the factors, and the mesoscopic mechanism of the changes therein was revealed with the help of optical microscope photos. The similarity ratio of TCS to soft rock was derived according to geometries and stress conditions of laboratory model tests, demonstrating the feasibility of using TCS as similar materials to soft rock. Moreover, empirical formulas for the change of shear strength parameters with the factors were fitted to facilitate the preparation of TCS with target shear strength in the future. The findings can provide a basis for preparing transparent similar materials to natural soil and soft rock in physical modeling tests.
format	article
author	Xianlun Leng Xianlun Leng Chuan Wang Chuan Wang Rong Pang Qian Sheng Qian Sheng Jian Chen Jian Chen
author_facet	Xianlun Leng Xianlun Leng Chuan Wang Chuan Wang Rong Pang Qian Sheng Qian Sheng Jian Chen Jian Chen
author_sort	Xianlun Leng
title	Material Preparation and Geotechnical Properties of Transparent Cemented Soil for Physical Modeling
title_short	Material Preparation and Geotechnical Properties of Transparent Cemented Soil for Physical Modeling
title_full	Material Preparation and Geotechnical Properties of Transparent Cemented Soil for Physical Modeling
title_fullStr	Material Preparation and Geotechnical Properties of Transparent Cemented Soil for Physical Modeling
title_full_unstemmed	Material Preparation and Geotechnical Properties of Transparent Cemented Soil for Physical Modeling
title_sort	material preparation and geotechnical properties of transparent cemented soil for physical modeling
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/4937b5da60814d5bb44e32b6b45b1625
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_version_	1718406199904305152

Material Preparation and Geotechnical Properties of Transparent Cemented Soil for Physical Modeling

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