An Empirical Power Density-Based Friction Law and Its Implications for Coherent Landslide Mobility

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F20%3A10416447" target="_blank" >RIV/00216208:11310/20:10416447 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=wNdVGFJQpM" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=wNdVGFJQpM</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1029/2020GL087581" target="_blank" >10.1029/2020GL087581</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An Empirical Power Density-Based Friction Law and Its Implications for Coherent Landslide Mobility

Popis výsledku v původním jazyce

The evolution of the shear resistance at the base of a coherent landslide body can effectively control its dynamic behavior. High-velocity rotary shear experiments have allowed scientists to explore stress-strain conditions close to those found in large landslides and faults. These experiments have led to two alternative models being proposed, which describe the evolution of the shear resistance through friction laws that depend either on normal stress or on velocity. Here, we discuss an integrated approach, first proposed to study seismic fault behavior, that reconciles these two models under a single parameter-the power density-which we utilize for the first time to investigate landslide dynamics. Using thermodynamic and process-based considerations, different soil and rock types can be related to different weakening mechanisms, which in turn can determine different landslide behaviors.

Název v anglickém jazyce

An Empirical Power Density-Based Friction Law and Its Implications for Coherent Landslide Mobility

Popis výsledku anglicky

The evolution of the shear resistance at the base of a coherent landslide body can effectively control its dynamic behavior. High-velocity rotary shear experiments have allowed scientists to explore stress-strain conditions close to those found in large landslides and faults. These experiments have led to two alternative models being proposed, which describe the evolution of the shear resistance through friction laws that depend either on normal stress or on velocity. Here, we discuss an integrated approach, first proposed to study seismic fault behavior, that reconciles these two models under a single parameter-the power density-which we utilize for the first time to investigate landslide dynamics. Using thermodynamic and process-based considerations, different soil and rock types can be related to different weakening mechanisms, which in turn can determine different landslide behaviors.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Geophysical Research Letters

ISSN

0094-8276

e-ISSN

—

Svazek periodika

47

Číslo periodika v rámci svazku

jun

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

e2020GL087581

Kód UT WoS článku

000543387400030

EID výsledku v databázi Scopus

2-s2.0-85086432497