Abstract
A new naturally morphed soil structure has been discovered at 2 out of 33 pedons excavated in Oman, inside and in the vicinity of a flood-protection/recharge dam, subject to a rapid geomorphological changes, caused by sediment loads from a wadi-transported runoff. Low permeable cascades of soil blocks are interspersed by highly permeable fractures filled by a natural “proppant” (sand). Different time scales (ponding with infiltration/seepage—evaporation/transpiration), the pore pressure contrast between fractures and block, capillarity (mostly of blocks), gravity (similar to oil-gas gravity drainage in reservoir engineering of fractured rock), climatological factors and transpiration of the plant roots—all control the topology of water motion in this porous double-continuum medium. Infiltration in layered soils is modeled by the Green–Ampt model with front propagating across an interface between layers of contrasting conductivity, porosity and capillarity. The goal of this work is to explain qualitatively and using a mathematical model the macroscale observations (infiltration) by a pore-scale model.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Barenblatt, G. I., Entov, V. M., & Ryzhik, V. M. (1990). Theory of fluid flows through natural rocks. Dordrecht: Kluwer.
Al-Ismaily S. S., Al-Maktoumi A. K., Kacimov A. R., Al-Saqri S. M., Al-Busaidi H. A., Al-Haddabi M. H. (2013). A morphed block-crack preferential sedimentation: a smart design and evolution in nature. Hydrological Sciences Journal, In press.
Kacimov, A. R., AI-Ismaily, S., & AI-Maktoumi, A. (2010). Green-Ampt one-dimensional infiltration from a ponded surface into a heterogeneous soil. Journal of Irrgation and Drainage Engineering, 136(1), 68–72.
Sandor, J., Burras, C. L., & Thompson, M. (2005). Factors of soil formation: human impacts. In D. Hillel (Ed.), Encyclopedia of soils in the environment (pp. 520–532). Oxford: Elsevier.
Kacimov, A. R., & Obnosov, Yu V. (2013). Pseudo-hysteretic double-front hiatus-stage soil water parcels supplying a plant-root continuum: the Green-Ampt-Youngs Model revisited. Hydrological Sciences Journal, 58(1), 237–248.
Logsdon, S. D. (1997). Transient variation in the infiltration rate during measurement with tension infiltrometers. Soil Science, 162(4), 233–241.
Kacimov, A. R., & Kayumov, I. R. (2002). Viscous flow through straight pore channels. Journal of Porous Media, 5(3), 199–208.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Kacimov, A., Al-Ismaily, S., Al-Maktoumi, A., Al-Busaidi, H., Al-Saqri, S. (2014). Cascade of Proppant-Sandwiched Silt Blocks as a Double-Continuum: From Discovery to Mathematical Modeling. In: Pardo-Igúzquiza, E., Guardiola-Albert, C., Heredia, J., Moreno-Merino, L., Durán, J., Vargas-Guzmán, J. (eds) Mathematics of Planet Earth. Lecture Notes in Earth System Sciences. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32408-6_45
Download citation
DOI: https://doi.org/10.1007/978-3-642-32408-6_45
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-32407-9
Online ISBN: 978-3-642-32408-6
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)