A 3D discrete element modelling approach for rockfall analysis with drapery systems

被引：83

作者：

Thoeni, Klaus ^{[1
]}

Giacomini, Anna ^{[1
]}

Lambert, Cedric ^{[2
]}

Sloan, Scott W. ^{[1
,3
]}

Carter, John P. ^{[1
,3
]}

机构：

[1] Univ Newcastle, Ctr Geotech & Mat Modelling, Callaghan, NSW 2308, Australia

[2] Univ Canterbury, Dept Civil & Nat Resources Engn, Christchurch 8140, New Zealand

[3] Univ Newcastle, ARC Ctr Excellence Geotech Sci & Engn, Callaghan, NSW 2308, Australia

来源：

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES | 2014年 / 68卷

基金：

澳大利亚研究理事会;

关键词：

Discrete element method (DEM); 3D rockfall modelling; Double-twisted hexagonal mesh; Rockfall protection; Full-scale modelling; CONTACT MODEL; PROTECTION; DESIGN; NETS; MESH; DEM;

D O I：

10.1016/j.ijrmms.2014.02.008

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

This paper presents a novel approach for the simulation of rockfalls behind drapery systems which can be used to accurately assess the residual rockfall hazard involved with such systems. A discrete element model of drapery systems installed on rock slopes is presented where all the relevant interactions are taken into account. The approach is based on the classical discrete element method, where the block is represented by a rigid assembly of spheres. The slope is represented by triangular elements and the drapery is represented by spherical particles which interact remotely. The model is calibrated and validated by comparing the numerical predictions with experimental results. It is shown that the model can accurately predict block trajectories and block velocities for rockfall analysis with and without drapery. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：107 / 119

页数：13

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