The contribution of swelling to self-sealing of claystone studied through x-ray tomography
نویسندگان
چکیده
Many countries, as among others France, Belgium and Switzerland, are facing the issue of finding a proper solution to store radioactive waste coming from nuclear power plants. The possibility them in underground tunnels is largely considered investigated. In Andra (Agence Nationale pour la gestion des Déchets RAdioactifs) selected Callovo-Oxfordian clay rock situated Meuse/Haute Marne site between 400 600 m depth possible host deposit. excavation storage expected create fractured zone around galleries. factures will be then gradually re-saturated by water surrounding they self-seal contact with water, thanks swelling potential COx. capacity self-sealing, i.e. closing fractures after possibly restoring permeability, thus primary interest for safety system respect gas solutes transport. physical mechanisms driving this phenomenon mainly de-structuration matrix present claystone. work, self-sealing response COx was investigated through x-ray tomography at multi-micrometre sub-micrometre voxel size. objective study influence mineralogy, size discontinuity, hydraulic paths, mutual orientation bedding plane fractures. discontinuity importance determining percentage closure. Fractures parallel more likely seal anisotropic occurs perpendicular plane. main novelty represented direct local observation process down scale lower than 1 μm.
منابع مشابه
contribution of setting to the study of characters and the main idea in e. brontes: wuthering heights and t. hardys: return of the native.
this thesis aims to adduce an unmitigated and comprehensive explication concerning the relationship of three significant elements of fiction: setting, chracter and theme. my research is basically placed on two outstanding novels of the 19th century: emily brontes wuthering heights and thomas hardys return of the native. my endeavour lies in studying the correlation among the three above-mention...
15 صفحه اولon the relationship between self- regulated learning strategies use and willingness to communicate in the context of writing
این تحقیق به منظور بررسی رابطه بین میزان استراتژیهای خود-تنظیم شده یادگیری و تمایل به ایجاد ارتباط دانشجویان زبان انگلیسی انجام شده است.علاوه بر این،روابط و کنش های موجود بین ریزسنجه های استراتژیهای خود-تنظیم شده یادگُیری ، مهارت نگارش و تمایل به برقراری ارتباط و همچنین تاٍثیرجنسیت دانشجویان زبان انگلیسی در استراتژیهای خود-تنظیم شده یادگیری و تمایل به برقراری ارتباط آنها مورد بررسی قرار گرفته شد.
15 صفحه اولfrom linguistics to literature: a linguistic approach to the study of linguistic deviations in the turkish divan of shahriar
chapter i provides an overview of structural linguistics and touches upon the saussurean dichotomies with the final goal of exploring their relevance to the stylistic studies of literature. to provide evidence for the singificance of the study, chapter ii deals with the controversial issue of linguistics and literature, and presents opposing views which, at the same time, have been central to t...
15 صفحه اولsurveying the relevance of proportions to the content of quran verses
چکیده : قرآن چشمه سار زلال هدایتی است که از سوی خداوند حکیم نازل شده تا بشر را به سر منزل کمال برساند. و در این راستا از شیوه های گوناگون بیانی خطابی و بلاغی استفاده کرده تا با فطرت زیبا طلب انسان درآمیزد و اورا مقهور خویش ساخته، به سوی کمالات سوق دهد.ازجمله جنبه های بارز اعجاز بیانی قرآن وجود فواصل در پایان آیات است که کار برد سجع و قافیه در کلام بشر شبیه آن است. برخی ازعلمای سلف تفاوت هایی ب...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics And Chemistry Of The Earth, Parts A/b/c
سال: 2022
ISSN: ['1474-7065', '1873-5193']
DOI: https://doi.org/10.1016/j.pce.2022.103191