<p>Argyle Diamond Mine is situated in the East Kimberley region of Western Australia. Block-cave mining is ongoing below the mined-out South Bowl pit. Average annual rainfall is about 800 mm. A constant flow of groundwater between 60-100 L/s enters the cave ...

A case study is presented using Northparkes Mine microseismic (MS) events located by forward calculating P- and S-wave travel times using ray-tracing and wavefront construction techniques through velocity structures that mimic heterogeneity and damage in the ...

Since 2001, the Hybrid Stress Blast Model (HSBM) project members have developed a software suite to model the complete blasting process from non-ideal detonation to muck pile formation. To preserve the physics and improve solution time, the breakage engine ...

Manual for Complex Grid Generation for Mining&amp; Petroleum Geomechanics.

A partial shaft pillar extraction project was embarked on at a mine in the West Wits mining region in South Africa. Prior to the extraction, a rock engineering assessment was conducted with the main objective being to establish which areas of the shaft pillar ...

A coupled hydromechanic analysis predicts a significant pore pressure drop due to the volumetric expansion associated with the excavation of the pit. This lower pore pressure distribution allows for a more aggressive and economical slope design.

<p>For investigating floor heave behavior and controlling technique of roadway intersection in deep mine, creep deformation characteristics of floor around roadway intersection was studied by Flac3D and the effects of shear plastic critical value, reinforcement ...

The aim of this thesis is to contribute to the understanding of the hangingwall failure process and its relationship with the ground surface subsidence. Results from numerical analysis using continuous methods indicate that the first tension cracks are formed ...

Molycorp, Inc.’s Questa Mine plans to switch from gravity draw in Block 1 to a load-haul-dump (LHD) draw system in the East and West blocks of the D Orebody. Changes in mining method require modifying the support design. This paper summarizes the numerical ...

At the Palabora Mine, the transition to caving 400 m below the bottom of the 800 m deep pit resulted in a slope failure of the North wall that began in 2003, and is still mobile. This failure can be explained by the daylighting into the cave zone of a prominent ...