To investigate the dimensional effect on shock wave propagation in jointed rock masses, a 2-D and a 3-D calculation of a site test are performed respectively by using Discrete Element Method, the simulated results are compared with test data. It shows that, in modelling shock wave propagation and attenuation in jointed rock masses, when the explosive along explosion chamber is long enough and the joints are dense enough or uniformly distributed, the model can be considered as plane-strain problem, 2-D results are good enough to fit with test data. 2-D modelling, with much more details of rock masses taken into account, can be applied to make critical engineering judgements instead of 3-D modelling in some cases.
|Number of pages||4|
|Publication status||Published - 1 Jan 2003|
|Event||10th International Society for Rock Mechanics Congress, ISRM 2003 - Sandton, South Africa|
Duration: 8 Sep 2003 → 12 Sep 2003
|Conference||10th International Society for Rock Mechanics Congress, ISRM 2003|
|Period||8/09/03 → 12/09/03|