Pregled bibliografske jedinice broj: 1221477
The influence of the rainfall data temporal resolution on the results of numerical modelling of landslide reactivation in flysch slope
The influence of the rainfall data temporal resolution on the results of numerical modelling of landslide reactivation in flysch slope // Landslides, 19 (2022), 12; 2809-2822 doi:10.1007/s10346-022-01937-0 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1221477 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
The influence of the rainfall data temporal
resolution on the results of numerical modelling
of landslide reactivation in flysch slope
Autori
Peranić, Josip ; Arbanas, Željko
Izvornik
Landslides (1612-510X) 19
(2022), 12;
2809-2822
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Rainfall data ; Infiltration ; Flysch ; Landslide reactivation ; Slope stability ; Partially saturated soil
Sažetak
There are numerous examples in the literature where numerical modelling has been used as a valuable tool in the study of rainfall-induced landslides. While much attention has been paid to the influence of different rainfall characteristics and patterns, spatial variability or temporal patterns of rainfall intensity, very little attention has been paid to the influence of the temporal resolution of rainfall data used in numerical simulations of rainfall infiltration and slope stability analysis. This is particularly true for deep-seated landslides occurring on slopes composed of soils with relatively low hydraulic conductivity, as in the case of flysch deposits presented in this study. A recently developed 2D numerical model is used to investigate the results of transient infiltration and slope stability analysis for flux boundary conditions derived from three temporal resolutions of realistic rainfall data: (i) 10-min, (ii) hourly and (iii) daily rainfall measurements. The results obtained show that deriving the time- dependent flux boundary conditions using the coarse resolution rainfall data (e.g. daily rainfall measurements) can lead to a calculation of unrealistically high infiltrated volumes, a faster increase in water content and pore water pressure in a slope cross-section, and a reduction in the factor of safety at an unrealistically high rate, resulting in a conservative prediction of the time to slope failure. The results suggest hourly rainfall data as the optimal form of input data for the case study under investigation.
Izvorni jezik
Engleski
Znanstvena područja
Građevinarstvo
POVEZANOST RADA
Projekti:
HRZZ-IP-2018-01-1503 - Fizičko modeliranje ponašanja konstrukcija za sanaciju klizišta u uvjetima statičkih i seizmičkih djelovanja (ModLandRemSS) (Arbanas, Željko, HRZZ - 2018-01) ( CroRIS)
EK-EFRR-RC.2.2.06-0001 - Razvoj istraživačke infrastrukture na kampusu Sveučilišta u Rijeci (RISK) (Ožanić, Nevenka, EK - Operativni program Regionalna konkurentnost) ( CroRIS)
Ustanove:
Građevinski fakultet, Rijeka
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
