Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Benoît Valley"'
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
Seismicity following heavy rainfall events is often considered to be triggered by the pore pressure diffusion front migrating from the surface towards the focal depth, assuming a homogeneous crust. Although this assumption can be justified in some ca
Externí odkaz:
https://doaj.org/article/2323ee9a1f1e4f2eb16176364d9fde82
Hydrogeologic and microseismic monitoring as a tool to evaluate fault criticality in karstic regions
Natural groundwater level fluctuation in karstic networks resulting from significant recharge (precipitation and/or seasonal snowmelt) can potentially induce seismicity. Triggering is often considered to be the result of pore pressure diffusion front
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ef9f89414d5cdead10565d2699619ba
https://doi.org/10.5194/egusphere-egu23-11775
https://doi.org/10.5194/egusphere-egu23-11775
Autor:
Martin Ziegler, Benoît Valley
Publikováno v:
Rock Mechanics and Rock Engineering, 54 (12)
The in situ state of rock mass stresses is a key design parameter, e.g., for deep engineered geothermal systems. However, knowledge of the stress state at great depths is sparse mostly because of the lack of possible in situ tests in deep boreholes.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ebaf2f6e1d4361ffde87634ceed814bd
https://hdl.handle.net/20.500.11850/506363
https://hdl.handle.net/20.500.11850/506363
Publikováno v:
Solid Earth, Vol 10, Pp 1155-1180 (2019)
Solid Earth
Solid Earth, European Geosciences Union, 2019, 10 (4), pp.1155-1180. ⟨10.5194/se-10-1155-2019⟩
Solid earth, 10 (4), 1155–1180
Solid Earth
Solid Earth, European Geosciences Union, 2019, 10 (4), pp.1155-1180. ⟨10.5194/se-10-1155-2019⟩
Solid earth, 10 (4), 1155–1180
In the Upper Rhine Graben, several innovative projects based on enhanced geothermal system (EGS) technology exploit local deep-fractured geothermal reservoirs. The principle underlying this technology consists of increasing the hydraulic performances
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab39271f34c9f2c9a38ff46d3629718d
https://www.solid-earth.net/10/1155/2019/se-10-1155-2019.pdf
https://www.solid-earth.net/10/1155/2019/se-10-1155-2019.pdf
Autor:
Benoît Valley, Keith F. Evans
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 118:1-20
This paper presents the results of an evaluation of stress magnitudes in the granitic EGS reservoir in Basel, Switzerland. The profile of minimum principal horizontal stress, Shmin, is constrained by hydraulic tests, but the magnitude of the maximum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e9f99da93d4e464258c0d498c3ec9e9
https://doi.org/10.1016/j.ijrmms.2019.03.008
https://doi.org/10.1016/j.ijrmms.2019.03.008
Publikováno v:
Canadian Geotechnical Journal. 56:852-867
A two-dimensional numerical model based on the distinct element method, previously calibrated to the laboratory properties of undamaged and damaged Lac du Bonnet (LdB) granite, was used to investigate the influence of stress path on the development o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2793e0880ebf05f1bad4c72775ed33ca
https://doi.org/10.1139/cgj-2018-0291
https://doi.org/10.1139/cgj-2018-0291
Publikováno v:
Tectonophysics. 757:140-152
Slip orientation inferred from fault striae or focal mechanism datasets is commonly used in stress inversion methods based on the Wallace-Bott hypothesis. The hypothesis postulates that slip on a fault plane is collinear with the orientation of the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6f6790781dd28500148c385f2197e9c
https://doi.org/10.1016/j.tecto.2019.01.017
https://doi.org/10.1016/j.tecto.2019.01.017
Publikováno v:
Rock Mechanics and Rock Engineering, 52 (6)
We present a methodology for generating fractal fracture networks in one, two and three dimensions that respects the dual power-law model, in which the scaling characteristics are set by the two independent parameters: (1) the correlation dimension t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd8dae62c5433bb71de577016cfc6926
https://doi.org/10.1007/s00603-019-1739-7
https://doi.org/10.1007/s00603-019-1739-7
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 155:105138
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::914e9c7fd59d61bf7ea5f76202b50437
https://doi.org/10.1016/j.ijrmms.2022.105138
https://doi.org/10.1016/j.ijrmms.2022.105138
Autor:
Florian Amann, Benoît Valley, Mohammadreza Jalali, Nathan Dutler, Hannes Krietsch, Linus Villiger, Domenico Giardini, Valentin Gischig, Joseph Doetsch
Publikováno v:
Geophysical research letters : GRL 48(6), e2020GL091468 (2021). doi:10.1029/2020GL091468
Geophysical Research Letters, 48 (6)
Geophysical Research Letters, 48 (6)
High-pressure fluid injections cause transient pore pressure changes over large distances, which may induce seismicity. The zone of influence for such an injection was studied at high spatial resolutions in six decameter-scaled fluid injection experi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a5ce3d80402f74654f640e37d87216d
https://doi.org/10.1029/2020gl091468
https://doi.org/10.1029/2020gl091468