Pregled bibliografske jedinice broj: 1123133
Experimental and Numerical Investigation of One- Dimensional Infiltration into Unsaturated Soil
Experimental and Numerical Investigation of One- Dimensional Infiltration into Unsaturated Soil // Challenges and Innovations in Geomechanics / Marco Barla, Alice Di Donna, Donatella Sterpi (ur.).
Torino: Springer, 2021. str. 251-259 doi:10.1007/978-3-030-64514-4_20
CROSBI ID: 1123133 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Experimental and Numerical Investigation of One-
Dimensional Infiltration into Unsaturated Soil
Autori
Oguz, Emir Ahmet ; Robinson, Kate ; Đepina, Ivan ; Thakur, Vikas
Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, ostalo
Knjiga
Challenges and Innovations in Geomechanics
Urednik/ci
Marco Barla, Alice Di Donna, Donatella Sterpi
Izdavač
Springer
Grad
Torino
Godina
2021
Raspon stranica
251-259
ISSN
2366-2557
Ključne riječi
Infiltration ; Column testing device ; Unsaturated soil ; SWCC ; Wetting curve
Sažetak
Infiltration characteristics of an unsaturated soil are of interest in both seepage and stability analyses and should be evaluated carefully. In this study, a new large-scale one- dimensional infiltration column test setup was developed, with an inner diameter of 0.24 m and a length of 1.3 m. In the tests conducted, 1.0 m of the column height was filled with soil and 0.3 m remained above for constant water head. The column was instrumented with five pairs of in- situ volumetric water content sensors and suction sensors. This paper explains the methodology used in the construction of the test setup and how the unsaturated properties were calculated for the tested soil, namely the soil water characteristic curve (SWCC) and soil permeability function (SPF). Infiltration tests were performed on a fabricated homogeneous clayey sandy silt similar to naturally available materials representative for Norwegian conditions. Soil specific SWCCs were established under steady state boundary conditions using the sensor outputs, and the results are presented. The instantaneous profile and wetting front advance methods, and relationships based on the SWCC were utilized to establish SPFs, and the results are discussed. A sensitivity analysis was run on the SWCC curve fitting parameters and effects of the parameters on infiltration time are presented. The results from the combined experimental and numerical analysis show that it may be possible to use the new test setup to develop unsaturated soil relationships, but accuracy and measurement range of the sensors are crucial to obtaining consistent results.
Izvorni jezik
Engleski
Znanstvena područja
Građevinarstvo
POVEZANOST RADA
Projekti:
EK-EFRR-KK.01.1.1.02.0027 - Implementacijom suvremene znanstvenoistraživačke infrastrukture na FGAG Split do pametne specijalizacije u zelenoj i energetski učinkovitoj gradnji (Jajac, Nikša, EK - KK.01.1.1.02) ( CroRIS)
Ustanove:
Fakultet građevinarstva, arhitekture i geodezije, Split
Profili:
Ivan Đepina
(autor)
