deep claythermo-hydro-mechanical behaviouroedometertemperatureInvestigating the thermo-hydro-mechanical behaviour of deep Ypresian clays (300 to 400 m below ground) is crucial since they are one of Belgium's potential host rock formations for deep geological disposal of radioactive waste. To this aim...
The soil permeability for EPB drives can reach either values of up to k = 10−3 m/s for the most porous soils (BPNL Lyon-Turin) and/or it can come down to practically impermeable clay (Heathrow T5) (Langmaack and Feng, 2005). With EPB shields, the cohesive soil loosened ...
All from the London Clay Formation (Eocene, Ypresian), these specimens represent some of the oldest fossils identified as trichiuroids. We find that Eutrichiurides winkleri does not show diagnostic characters of Eutrichiurides, and it is assigned to a new genus. To investigate the placement ...
The data obtained show that the sample is mostly constituted of carbonate fluorapatite associated with dolomite, calcite, opal CT, quartz, feldspars and few amounts of all clay minerals. XRD data of the heated samples showed a gradual removal of calcite, dolomite, opal CT, quartz and feldspar...
Huysmans M, Dassargues A (2006) Hydrogeological modeling of radionuclide transport in low permeability media: a comparison between Boom Clay and Ypresian Clay. Environ Geo 50 (1): 122–131Huysmans, M., Dassargues, A., “Hydrogeological modeling of radionuclide transport in low permeability media...
The geotechnical variability of this specific soil is assessed through the coefficients of variation (COV) of four groups of soil parameters namely: the clay index properties (water content, plasticity index, clay content), the shear strength (effective friction angle and cohesion, undrained shear ...
X.L. Li bL. Wouters cElsevier B.V.Applied Clay ScienceNguyen, X.P., Cui, Y.J., Tang, A.M., Li, X.L. & Wouters, L., 2014. Physical and microstructural impacts on the hydro-mechanical behaviour of Ypresian clays. Applied Clay Science 102: 172-185....
Pore-size distributions within the clay-matrix suggest power-law behavior of pore areas with exponents between 1.56-1.74. Mercury Intrusion Porosimetry, with access to porethroat diameters down to 3.6 nm, shows total interconnected porosities between 27-...
Clay mineralsCold ventingLayer-bound, polygonal fault systems (PFS) in marine, fine-grained sediments have been documented with seismic data over large areas in over 100 basins. The questions of how, when and how fast these muds broke without tectonic stress were still open. This study covered...
Carbonate concretions from the London Clay (Ypresian, Eocene) of Southern England and the excep tional preservation of wood-boring communities. Huggett J M,Gale A S,Evans S. J Geol Soc . 2000Carbonate concretions from the London Clay(Ypresian,Eocean)of Southern England and the ex-ceptional ...