... Artificial Intelligence strength Wellbore Design particle numerical sample scratch test reservoir geomechanics numerical simulation Upstream Oil & Gas discrete particle simulation Simulation experiment Reservoir Characterization structural geology cutter intergranular bond...

... ABSTRACT ABSTRACT In 1992, the Colorado School of Mines (CSM) laboratory, under DOE sponsorship, began testing very small, 5 inch diameter cutters built by Excavation Engineering Associates, Inc, (EEA), These cutters utilized an entirely non-traditional mounting method, shaft, and bearing...

...Pacific Rocks 2000. Girard, Liebman, Breeds & Doe (eds) © 2000 Balkema. Rotterdam. ISBN 90 5809 1554 Measurements of cutter forces for a TBM machine in Aspo underground excavation Z.X.Zhang, S.Q.Kou & P.-A.Lindqvist Division of Rock Engineering, Lulea University of Technology, Sweden ABSTRACT...

... with explosives for trenching, tunneling, vein mining INTRODUCTION Ramex Systems developed a breaker mounted impact kerfing cutter (IKC) concept for trenching and tunneling in rock. See Figure 1. In or- der to determine tool design parameters and define estimating procedures for production rates Ramex conducted...

... with a blunt cutter proposed by Detournay and Defourny (1992), which will be referred to as the DD model in the following. The DD model is based on the assumptions that the total force acting on a cutter is the sum of forces that act on the cutting face and on the wear flat (which often exists...

... Penetration Index, R f , and the definition of the relationship between them. Reservoir Characterization rebound hardness cutter Upstream Oil & Gas Goodwin Tunnel structural geology TBM penetration rate category penetration rate hardness Nelson metamorphic rock TBM performance core...