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Keywords: roughness
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-193
... element analysis was used incorporating a soil structure interaction theory at the soil/anchor boundary. Numerical analysis and laboratory testing will be performed on anchors in both clay and sand. roughness pullout capacity horizontal anchor vertical anchor Upstream Oil & Gas soil...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-217
... ABSTRACT: A new method for analysis of size, shape and roughness of aggregates based on a 3-D-laser-digitising technique is presented. Measurements of aggregate particles are carried out by a system consisting of a laser sensor and a co-ordinate-measuring machine; the accuracy of the system...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-577
... purposes. There has been a tendency to also use the resulting empirical ratings to determine the constitutive laws as well as failure criteria now employed with the majority of numerical models. metals & mining roughness assessment milne strength rock mass classification system block size...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-355
... including a safety factor of 1.5, (Wehr (1999 Design of sand anchors To guarantee the required pull-out force for sand anchors the following factors have to be taken into account during the design stage. The most important factors are the right choice of the roughness and diameter of the rod and the mean...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-475
... roughness shear direction shear strength equation ABSTRACT: Rock mass is heterogeneous, anisotropic and discontinuous. When civil engineering structures like dams are founded on rock, they transmit normal and shear stresses to the joints of the rock mass. For a realistic assessment...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-598
.... The adherence behaviour of clay was investigated by measuring the shear stress required to shear the clay over a steel surface in a direct shearbox. Results show a great influence of the steel roughness, contact time and mineral type. This is in accordance with practical experience and previous literature...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-365
... that this parameter is more appropriate for pile design in hard Irish rocks. The Rocket '97 approach, which uses basic rock and pile parameters and allows for the effects of roughness along the pile shaft, is shown to give encouraging results for Irish conditions. INTRODUCTION The recent period of sustained...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-177
... variables are borehole roughness, elongation and ellipticity. The time dependence of these parameters was correlated to changes in the circulation. The data shows the successful application in the KTB pilot borehole of increased use of the complex bond-forming viscosifier Dehydrill in the fluid circulation...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-034
... polarizations of shear waves. Upstream Oil & Gas crack density Crampin Hudson attenuation wave velocity shear wave shear-wave birefringence axial stress King directional permeability logarithm Reservoir Characterization roughness variation anisotropy perpendicular fracture...

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