nach oben

Rock Mechanics and Rock Engineering

Erschienen in:

22.04.2020 | Original Paper

Discrete Element Analyses of a Realistic-shaped Rock Block Impacting Against a Soil Buffering Layer

verfasst von: Weigang Shen, Tao Zhao, Feng Dai, Giovanni B. Crosta, Houzhen Wei

Erschienen in: Rock Mechanics and Rock Engineering | Ausgabe 8/2020

Einloggen

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config

KI-gestützte Suche

Aus

Abstract

This study is devoted to understanding the impact of irregularly shaped rock blocks against a soil buffering layer above a rock shed via numerical simulations by discrete element method (DEM). In the DEM model, the rock block is represented by an assembly of densely packed and bonded spherical particles with the block shape reconstructed from the laser scanning results of a real rock block. The soil buffering layer is modeled as a loose packing of cohesionless frictional spherical particles, while the rock shed is simplified as a layer of fixed particles. The DEM model is first validated by modeling the impact of a cubic block against a soil buffering layer. Then, it is employed to investigate the dynamic interaction between a realistic-shaped rock block and the soil buffering layer. The numerical results show that the geometry of the contact surface between the rock block and soil layer can play a significant influence on the impact force of the rock block and the force acting on the rock shed. For the tested conditions, the distribution of stress on the rock shed can be well described by the Gaussian function, which seems to be independent on the geometry of the contact surface. In addition, the simplification of realistic-shaped rock blocks as spheres in the traditional DEM modeling approaches can significantly underestimate of the impact force. The established modeling strategy serves as a starting point for investigating the rock block shape. The proposed results can contribute to the choice of buffering layer for designing the rock shed.

Vorheriger Artikel Fracture Assessment of Quasi-brittle Rock Simulated by Modified Discrete Element Method

Nächster Artikel The Influence of Strain Rate on the Energy Characteristics and Damage Evolution of Rock Materials Under Dynamic Uniaxial Compression

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

über 102.000 Bücher
über 537 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Finance + Banking
Management + Führung
Marketing + Vertrieb
Maschinenbau + Werkstoffe
Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

über 67.000 Bücher
über 390 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Maschinenbau + Werkstoffe

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Asahina D, Taylor MA (2011) Geometry of irregular particles: direct surface measurements by 3-D laser scanner. Powder Technol 213(1):70–78

Bourrier F, Nicot F, Darve F (2010) Evolution of the micromechanical properties of impacted granular materials. CR Mec 338:639–647

Breugnot A, Lambert S, Villard P, Gotteland P (2016) A Discrete/continuous coupled approach for modeling impacts on cellular geostructures. Rock Mech Rock Eng 49(5):1831–1848

Calvetti F (2008) Discrete modelling of granular materials and geotechnical problems. Eur J Envron Civ Eng 12:951–965

Calvetti F, di Prisco C (2012) Rockfall impacts on sheltering tunnels: Real-scale experiments. Géotechnique 62(10):865–876

Calvetti F, di Prisco C, Vecchiotti M (2005) Experimental and numerical study of rockfall impacts on granular soils. Riv Ital Geotec 4:95–109

Crosta GB, Agliardi F (2004) Parametric evaluation of 3D dispersion of rockfall trajectories. Nat Hazards Earth Syst Sci 4(4):583–598

Cundall PA, Strack ODL (1979) A discrete numerical model for granular assemblies. Géotechnique 29(1):47–65

Degago S, Ebeltoft R, Nordal S (2008) Effect of rock fall geometries impacting soil cushion: a numerical procedure. In: The 12th international conference of international association for computer methods and advances in geomechanics, India.

Delaunay B (1934) Sur la sphère vide. A la mémoire de Georges Voronoï. Bull l'Acad des Sci de l'URSS 6:793–800

di Prisco C, Vecchiotti M (2006) A rheological model for the description of boulder impacts on granular strata. Géotechnique 56(7):469–482

Dorren LKA (2003) A review of rockfall mechanics and modelling approaches. Prog Phys Geogr 27(1):69–87

Du H-b, Dai F, Xu Y, Yan Z, Wei M-d (2020) Mechanical responses and failure mechanism of hydrostatically pressurized rocks under combined compression-shear impacting. Int J Mech Sci 165:105219

Effeindzourou A, Giacomini A, Thoeni K, Sloan SW (2017) Numerical investigation of rockfall impacts on muckpiles for underground portals. Rock Mech Rock Eng 50(6):1569–1583

Fityus SG, Giacomini A, Buzzi O (2013) The significance of geology for the morphology of potentially unstable rocks. Eng Geol 162:43–52

Gao G, Meguid M (2018a) Modeling the impact of a falling rock cluster on rigid structures. Int J Geomech 18(2):1–15

Gao G, Meguid MA (2018b) Effect of particle shape on the response of geogrid-reinforced systems: insights from 3D discrete element analysis. Geotext Geomembr 46(6):685–698

Gao G, Meguid MA (2018c) On the role of sphericity of falling rock clusters—insights from experimental and numerical investigations. Landslides 15(2):219–232

Glover J, Bartelt P, Christen M, Gerber W (2015) Rockfall-simulation with irregular rock blocks. In: Lollino G (ed) Engineering geology for society and territory, vol 2. Springer International Publishing, Cham, pp 1729–1733

Guo N, Zhao J (2016) 3D multiscale modeling of strain localization in granular media. Comput Geotech 80:360–372

Guzzetti F, Reichenbach P (2010) Rockfalls and their hazard. In: Stoffel M, Bollschweiler M, Butler DR, Luckman BH (eds) Tree rings and natural hazards: a state-of-art. Springer, Dordrecht, pp 129–137

Japan Road Association (2000) Manual for Anti-impact Structures Against Falling Rocks, Japan.

Kang W, Feng Y, Liu C, Blumenfeld R (2018) Archimedes’ law explains penetration of solids into granular media. Nat Commun 9(1):1101

Katsuragi H, Durian DJ (2007) Unified force law for granular impact cratering. Nat Phys 3(6):420–423

Katsuragi H, Durian DJ (2013) Drag force scaling for penetration into granular media. Phys Rev E 87(5):052208

Labiouse V, Descoeudres F, Montani S (1996) Experimental study of rock sheds impacted by rock blocks. Struct Eng Int 3(3):171–176

Lambert S, Bourrier F (2013) Design of rockfall protection embankments: A review. Eng Geol 154:77–88

Lambert S, Gotteland P, Nicot F (2009) Experimental study of the impact response of geocells as components of rockfall protection embankments. Nat Hazards Earth Syst Sci 9(2):459–467

Liu Y, Dai F, Dong L, Xu N, Feng P (2018) Experimental investigation on the fatigue mechanical properties of intermittently jointed rock models under cyclic uniaxial compression with different loading parameters. Rock Mech Rock Eng 51(1):47–68

Liu Y, Dai F, Zhao T, Xu N-w (2017) Numerical investigation of the dynamic properties of intermittent jointed rock models subjected to cyclic uniaxial compression. Rock Mech Rock Eng 50(1):89–112

Ministry of Transport of the People's Republic of China (1995) Specifications for Design of Highway Subgrades (JTJ013–95).

Office fédéral des routes OFROU (2008) Actions de chutes de pierres sur les galeries de protection (ASTRA 12006), Bern

Paixão A, Resende R, Fortunato E (2018) Photogrammetry for digital reconstruction of railway ballast particles—a cost-efficient method. Constr Build Mater 191:963–976

Pichler B, Hellmich C, Mang HA (2005) Impact of rocks onto gravel design and evaluation of experiments. Int J Impact Eng 31(5):559–578

Potyondy DO, Cundall PA (2004) A bonded-particle model for rock. Int J Rock Mech Min Sci 41(8):1329–1364

Roethlin C, Calvetti F, Yamaguchi S, Vogel T (2013) Numerical simulation of rockfall impact on a rigid reinforced concrete slab with a cushion layer. Fourth International Workshop on Performance Protection and Strengthening of Structures, India

Shao Q (2017) ESyS-Particle gengeo-1.4. World Wide Web Address: https://launchpad.net/esys-particle/+milestone/gengeo-1.4. Accessed 6 Jan 2017

Shen W, Zhao T, Dai F, Jiang M, Zhou GGD (2019) DEM analyses of rock block shape effect on the response of rockfall impact against a soil buffering layer. Eng Geol 249:60–70

Shen W, Zhao T, Zhao J, Dai F, Zhou GGD (2018) Quantifying the impact of dry debris flow against a rigid barrier by DEM analyses. Eng Geol 241:86–96

Shen WG, Zhao T, Crosta GB, Dai F (2017) Analysis of impact-induced rock fragmentation using a discrete element approach. Int J Rock Mech Min Sci 98:33–38

Shi C, Li D-j, Xu W-y, Wang R (2015) Discrete element cluster modeling of complex mesoscopic particles for use with the particle flow code method. Granul Matter 17(3):377–387

Su Y, Cui Y, Ng CWW, Choi CE, Kwan JSH (2018) Effects of particle size and cushioning thickness on the performance of rock-filled gabions used in protection against boulder impact. Can Geotech J 56(2):198–207

Volkwein A, Schellenberg K, Labiouse V, Agliardi F, Berger F, Bourrier F, Dorren L, Gerber W, Jaboyedoff M (2011) Rockfall characterisation and structural protection—a review. Nat Hazards Earth Syst Sci 11(9):2617–2651

Wang Y (2009) A new algorithm to model the dynamics of 3-D bonded rigid bodies with rotations. Acta Geotech 4(2):117–127

Wang Y, Mora P (2009) The ESyS_particle: a new 3-D discrete element model with single particle rotation. Advances in geocomputing. Springer, Berlin Heidelberg, pp 183–228

Weatherley D, Hancock W, Boris V (2014) ESyS-particle tutorial and user's guide version 2.1. earth systems science computational centre, The University of Queensland.

Wei D, Wang J, Nie J, Zhou B (2018) Generation of realistic sand particles with fractal nature using an improved spherical harmonic analysis. Comput Geotech 104:1–12

Wei H, Zan L, Li Y, Wang Z, Saxén H, Yu Y (2017) Numerical and experimental studies of corn particle properties on the forming of pile. Powder Technol 321:533–543

Xu Y, Dai F, Xu NW, Zhao T (2015) Numerical investigation of dynamic rock fracture toughness determination using a semi-circular bend specimen in split hopkinson pressure bar testing. Rock Mech Rock Eng 49(3):731–745

Yan P, Zhang J, Fang Q, Zhang Y (2018) Numerical simulation of the effects of falling rock’s shape and impact pose on impact force and response of RC slabs. Constr Build Mater 160:497–504

Zhang L, Lambert S, Nicot F (2017a) Discrete dynamic modelling of the mechanical behaviour of a granular soil. Int J Impact Eng 103:76–89

Zhang L, Nguyen NGH, Lambert S, Nicot F, Prunier F, Djeran-Maigre I (2017b) The role of force chains in granular materials: from statics to dynamics. Eur J Environ Civ En 21(7–8):874–895

Zhang Y, Liu Z, Shi C, Shao J (2018) Three-dimensional reconstruction of block shape irregularity and its effects on block impacts using an energy-based approach. Rock Mech Rock Eng 51(4):1173–1191

Zhao T, Dai F, Xu N (2017) Coupled DEM-CFD investigation on the formation of landslide dams in narrow rivers. Landslides 14(1):189–201

Zhao T, Dai F, Xu NW, Liu Y, Xu Y (2015) A composite particle model for non-spherical particles in DEM simulations. Granul Matter 17(6):763–774

Zhou Y, Wang H, Zhou B, Li J (2018) DEM-aided direct shear testing of granular sands incorporating realistic particle shape. Granul Matter 20(3):55

Titel: Discrete Element Analyses of a Realistic-shaped Rock Block Impacting Against a Soil Buffering Layer
verfasst von: Weigang Shen
Tao Zhao
Feng Dai
Giovanni B. Crosta
Houzhen Wei
Publikationsdatum: 22.04.2020
Verlag: Springer Vienna
Erschienen in: Rock Mechanics and Rock Engineering / Ausgabe 8/2020
Print ISSN: 0723-2632
Elektronische ISSN: 1434-453X
DOI: https://doi.org/10.1007/s00603-020-02116-0

Springer Professional

Abstract

Bitte loggen Sie sich ein, um Zugang zu Ihrer Lizenz zu erhalten.

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Springer Professional "Technik"

Weitere Artikel der Ausgabe 8/2020

Propagation of Stress Waves Through Fully Saturated Rock Joint Under Undrained Conditions and Dynamic Response Characteristics of Filling Liquid

Experimental Investigation on the Thermal, Mechanical and Cracking Behaviours of Three Igneous Rocks Under Microwave Treatment

Size-dependent Behaviour of Weak Intact Rocks

Experimental Study of Mechanical and Permeability Behaviors During the Failure of Sandstone Containing Two Preexisting Fissures Under Triaxial Compression

Experimental Study on the Bearing Mechanisms of Rock-socketed Piles in Soft Rock Based on Micro X-ray CT Analysis

Experimental and Numerical Investigation of the Effect of Bedding Layer Orientation on Fracture Toughness of Shale Rocks