... the Second Heinenoord tunnel. horizontal displacement water molecule kPa shear stress TBM Applicability adherence diffuse double layer Upstream Oil & Gas threshold potential potential gradient clay particle Reservoir Characterization normal stress Speswhite reduction clay adherence...

.... HCCE material normal stress soft ground shear strain compaction polystyrene Upstream Oil & Gas granite soil test result in-situ ground shear strength waste material sand-hcce mixture geotechnical utilization solid waste management Effectiveness compaction test shear stress mixture...

... Upstream Oil & Gas rock joint compression test normal deformation deformation joint specimen average roughness amplitude jointed rock mass improvement ratio Reservoir Characterization cement milk deformation modulus rock mass grouted joint reservoir geomechanics normal stress...

... and nonlinear strength envelopes occur only in the range of relatively low normal stress. Fig.6 illustrates the results of stability analysis for both the linear and nonlinear strength criteria. It is seen that use of the nonlinear criterion resulted with a signifi- cantly shallower critical slip surface...

... to the sliding surface soil. shear apparatus composition soil sample landslide Upstream Oil & Gas water content residual shear strength landslide area Shear Strength Parameter surface soil strength shear envelope shear strength landslide analysis ring shear test normal stress...

... the JRC Tse & Cruden (1979) converted Barton's table into equations. Wellbore Design strength joint surface Upstream Oil & Gas displacement normal stress discontinuity morphology Reservoir Characterization minimum dip angle Barton rock joint dip angle Artificial Intelligence...

... to the cut and fill method. drilling fluids and materials adhesion contact surface clay sample water content steel plate adherence consistency index Upstream Oil & Gas normal stress Speswhite differential fluid pressure drilling fluid management & disposal interface contact time...

... constant normal stiffness condition at an initial normal stress ranging from 0.13 MPa to 3.25 MPa, using a large scale CNS testing machine at a controlled strain rate of 0.5 mm/min. An analytical model has been developed to predict the shear resistance of bolted joints using the Fourier Series. The shear...

... normal stress levels. The rational approach is also proposed to define the generation and progress of the potential cracks due to shear and tension failure in the matrix by using distinct element method (DEM). Simulation of a deep underground opening excavation in the discontinuous rock masses is carried...

... plastic potential function plane th plane plane elastic-plastic model suction state boundary surface semi-saturated soil principal stress axis normal stress boundary surface increment MAN INTEGRATED PLANES ELASTIC-PLASTIC MODEL FOR SEMI-SATURATED SOIL & ROTATION OF PRINCIPAL STRESS AXES Seyed...

...), Eckersley (1990), Hungr (1995) and others. Hutchinson (1986) stated flow slide is a slope failure involving the collapse of metastable structure in a loose, cohesionless mass. Reservoir Characterization mechanism torrent deposit shear resistance granular soil normal stress debris flow apparent...

... relative difference seabed thickness soil displacement wave-induced seabed response inertia force soil response saturation Reservoir Characterization pore pressure wave-induced pore pressure effective stress coarse sand Upstream Oil & Gas normal stress vertical effective normal stress...

... of a fracture has been modeled by Barton-Bandis model (1985) in many cases. This model is made from the results of many experiments. waste management Upstream Oil & Gas mechanical model Reservoir Characterization Downstream Oil & Gas normal stress fracture characterization information...

... ABSTRACT: This paper reports the shear strength and deformation characteristics of compacted residual granite soil. Nine series of tests were conducted using computer control direct shear box apparatus with normal stress level ranging between 0.05 to 0.4 MPa. The influence of moisture content...

..., normal stress and dilation behaviour with shear displacements are compared with the laboratory results. It is observed that UDEC can predict the peak shear stress of unfilled joints under CNS, however, it overestimates the joint dilation as well as the normal stress. The maximum peak shear stress in UDEC...

.... The underground rock body is subjected to the initial stress prior to excavation. In many cases, it can be adequately assumed that the vertical normal stress is equal to the weight of the overlying rock mass, usually, 25–27MPa/Km on the average. The magnitude of the horizontal stresses lie widely between 0.5...

... Abstract.: A method for determining the complete regional stress field is presented. It is based on measurements of the normal stress supported by preexisting fracture planes (with various dip and strike) by means of hydraulic tests. The solution does not involve the stress field...

... ABSTRACT: The LFJ test is often also employed for the determination of the mean normal stress existing at the test location in the direction perpendicular to the cutted slot(s). As is shown with the help of a three-dimensional Finite Element study, many of the measuring point patterns used so...

.... The heated block test, recently conducted in situ on an 8m 3 block of jointed gneiss, provides normal stress and temperature-dependent data such as deformation modulus, joint stiffness, joint permeability, thermal expansion, thermal conductivity and dynamic elastic modulus. Simpler tests conducted on singly...

... direct shear test situ test rock type Reservoir Characterization Upstream Oil & Gas normal stress residual shear strength rock mass friction angle peak shear strength normal displacement shear test residual friction angle Proceedings of the International Symposium on Weak Rock /Tokyo...