Physics – Classical Physics
Scientific paper
2009-08-28
Archive of Applied Mechanics 79, 9 (2009) 825-841
Physics
Classical Physics
Scientific paper
The finite element method and dimensional analysis have been applied in the present paper to study a hydraulic impact, which is utilized in a non-explosive rock breaking technology in mining industry. The impact process of a high speed piston on liquid water, previously introduced in a borehole drilled in rock, is numerically simulated. The research is focused on the influences of all the parameters involved in the technology on the largest principal stress in the rock, which is considered as one of the key factors to break the rock. Our detailed parametric investigation reveals that the variation of the isotropic rock material properties, especially its density, has no significant influence on the largest principal stress. The influences of the depth of the hole and the depth of the water column are also very small. On the other hand, increasing the initial kinetic energy of the piston can dramatically increase the largest principal stress and the best way to increase the initial kinetic energy of the piston is to increase its initial velocity. Results from the current dimensional analysis can be applied to optimize this non-explosive rock breaking technology.
Genet Martin
Tran-Cong Thanh
Yan Wenyi
No associations
LandOfFree
Investigation of a hydraulic impact: a technology in rock breaking does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Investigation of a hydraulic impact: a technology in rock breaking, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Investigation of a hydraulic impact: a technology in rock breaking will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-193149