气候变化领域集成服务门户(CCPortal): Determining Crack Aperture Distribution in Rocks Using the 14C-PMMA Autoradiographic Method: Experiments and Simulations

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DOI	10.1029/2019JB018241
	Determining Crack Aperture Distribution in Rocks Using the 14C-PMMA Autoradiographic Method: Experiments and Simulations
	Bonnet M.; Sardini P.; Billon S.; Siitari-Kauppi M.; Kuva J.; Fonteneau L.; Caner L.
发表日期	2020
ISSN	21699313
卷号	125 期号:1
英文摘要	Because cracks control the global mechanical and transport properties of crystalline rocks, it is of a crucial importance to suitably determine their aperture distribution, which evolves through alteration processes and rock weathering. Due to the high variability of crack networks in rocks, a multiscale approach is needed. The 14C-PMMA (polymethylmethacrylate) method was developed to determine crack apertures using a set of artificial crack samples with different controlled apertures and tilt angles and also using Monte Carlo simulations. The experiments and simulations show the same result: the estimation of apparent aperture wA was successful regardless of tilt angle, even if the estimates are less accurate for low tilt angles (<30°). The uncertainties on the estimation of the real crack aperture wR arise from the unknown tilt angle. The ability of the 14C-PMMA autoradiography method to estimate crack aperture distributions in rock samples was successfully confirmed on a sample of Grimsel granodiorite. ©2019. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/188019
作者单位	IC2MP HydrASA Laboratory, UMR CNRS 7285, B35, University of Poitiers, TSA 51106, Poitiers, France; ERM Company, Poitiers, France; Department of Chemistry, University of Helsinki, Helsinki, Finland; Geological Survey of Finland, Espoo, Finland; Corescan Pty LtdWA, Australia
推荐引用方式 GB/T 7714	Bonnet M.,Sardini P.,Billon S.,et al. Determining Crack Aperture Distribution in Rocks Using the 14C-PMMA Autoradiographic Method: Experiments and Simulations[J],2020,125(1).
APA	Bonnet M..,Sardini P..,Billon S..,Siitari-Kauppi M..,Kuva J..,...&Caner L..(2020).Determining Crack Aperture Distribution in Rocks Using the 14C-PMMA Autoradiographic Method: Experiments and Simulations.Journal of Geophysical Research: Solid Earth,125(1).
MLA	Bonnet M.,et al."Determining Crack Aperture Distribution in Rocks Using the 14C-PMMA Autoradiographic Method: Experiments and Simulations".Journal of Geophysical Research: Solid Earth 125.1(2020).