Distinct Element Method Simulation of Rock Creep Behaviour

Gutiérrez Chacón, José Gregorio and Senent Domínguez, Salvador and Jiménez Rodriguez, Rafael (2019). Distinct Element Method Simulation of Rock Creep Behaviour. In: "53rd US Rock Mechanics/ Geomechanics Symposium", June 23–26, 2019, New York City, New York. pp. 1-5.

Description

Title: Distinct Element Method Simulation of Rock Creep Behaviour
Author/s:
  • Gutiérrez Chacón, José Gregorio
  • Senent Domínguez, Salvador
  • Jiménez Rodriguez, Rafael
Item Type: Presentation at Congress or Conference (Other)
Event Title: 53rd US Rock Mechanics/ Geomechanics Symposium
Event Dates: June 23–26, 2019
Event Location: New York City, New York
Title of Book: Proceedings of the 53rd US Rock Mechanics/ Geomechanics Symposium
Date: 24 June 2019
Subjects:
Freetext Keywords: Structural Geology, Uniaxial Compression Multistage Creep Test, Creep Test, Reproduce, Reservoir Characterization, Upstream Oil & Gas, Distinct Element Method Simulation, Artificial Intelligence, Micromechanical Parameter, Tertiary Creep
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ingeniería y Morfología del Terreno
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Rock creep behavior is an essential factor of many geotechnical projects, such as dam foundations, tunnels, rock-bolt or rock-socketed piles. Creep is a progressive deformation that many materials exhibit under a state of constant homogeneous stress. In the last decades, several laboratory creep tests have been conducted to study the creep behaviour of different types of intact or fractured rock samples. Based on experimental data several creep models have been proposed to reproduce the creep behaviour observed empirically; however, these approaches often do not reproduce all phases of creep behaviour satisfactorily. In this work, a numerical model in PFC2D is employed to simulate a compression multistage creep test on slate rock using an implementation of the rate process theory proposed by Kuhn and Mitchell (1992) and a hybrid contact model –with the Linear Model and the Flat Joint Contact Model– to represent the behaviour of contacts between particles. The numerical results are compared with experimental data of a uniaxial compression multistage creep test conducted on slate. DEM2D results suggest that the rate process theory is able to reproduce all phases of creep behaviour on slate, particularly the tertiary creep.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainBIA2015-69152-RUnspecifiedUnspecifiedPredicción y análisis de deformaciones para la seguridad en túneles

More information

Item ID: 67809
DC Identifier: https://oa.upm.es/67809/
OAI Identifier: oai:oa.upm.es:67809
Official URL: https://onepetro.org/ARMAUSRMS/proceedings-abstract/ARMA19/All-ARMA19/ARMA-2019-1733/124981
Deposited by: Memoria Investigacion
Deposited on: 29 Sep 2021 14:50
Last Modified: 29 Sep 2021 14:53
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