... c/ Special emulsion explosive (SEE), charge weighing 10 g, and with the following basic parameters: x density - 1.15 ± 1.3 g/cm3 x velocity of detonation, min - 4000 m/s x specific volume of gaseous products of explosion - 767 dm3/kg x specific energy - 522 kJ/kg Admissible confining pressure 0.3...

... ABSTRACT: Rock cuttability is defined with specific energy, specific cutting force, specific normal force and tool wear for given conditions by various researchers. Specific energy and forces are determined with different methods. Most reliable method for determining rock cuttability...

... with roadheaders, shearers, continuous miners, and surface miners. The tests are performed at line spacing of 25 mm and varying cutting depths per revolution by using a travertine sample, which is considered as ductile and soft. Comparison criteria are average normal, cutting, and side forces, specific energy...

... and theoretical investigation. Database processing involved conventional mathematical and statistical methods, as well as the alternative methods, such as means of artificial intelligence. machine learning fuzzy logic reservoir geomechanics relation strength Artificial Intelligence specific energy...

.... In addition, the rotation speed (peripheral speed), the feed rate (cutting speed), the depth of cut, the structure of cutter socket and the machine's power will affect the specific energy. Various researchers have studied the specific energy values for several rock types and established meaningful relations...

... in obtaining the forces acting upon a cutter during its penetration and cutting of a groove in a sample of evaporite. These forces are transformed into Mechanical Specific Energy, MSE. The tests were carried out under different depths of cut and back-rake angles. The results indicate that MSE decreases...

... Reservoir Characterization specific energy eurock 2012 Tunnel Project Upstream Oil & Gas TBM ayazaga-cayirbasi water tunnel project rock sample structural geology strength net cutting rate field penetration Istanbul excavation Performance Parameter thrust penetration...

... for defining point load index. Then, the uniaxial compres-sive strength values obtained from point load tests are correlated with TBM operation-al parameters such as torque, thrust, specific energy, as well as penetration rates. The results indicate that there is a moderate relationship between uniaxial...

... coarseness index Wellbore Design strength eurock 2012 excavation chisel tool wellbore integrity specific energy linear cutting test uniaxial compressive strength Reservoir Characterization tensile strength Bilgin breakout angle static elasticity modulus wave velocity mechanical property...

... and modified con- tinuously for impact hammers, roadheaders and TBMs. This paper will summarize briefly the works done in these respects emphasizing specially on the concept of in situ specific energy when using TBMs. A numerical example showing how to calcu- late net production rate of a TBM is given based...

... Upstream Oil & Gas LABORATORY study sequence production monitoring specific energy different sideway angle Copur white marble right hand side tool force Reservoir Surveillance linear cutting experiment sideway angle chisel tool natural stone series test Bilgin Rock Mechanics in Civil...