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Keywords: assumption
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-207
... evaluation rock mass numerical method mean value deformability modulus displacement discontinuity open crack numerical analysis discontinuity assumption analytical solution natural discontinuity crack length specimen MPa expression fracture density 2000. CRC Press. Permission...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-289
... these walls are in existence for about 40 years, their design is based on many conservative assumptions. In the absence of much prior experience, these empirical procedures were developed with sufficiently large factors of safety. A rational understanding of the behavior of these walls will lead to better...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-464
... were calculated by subtraction from the original (assumed flat) surface. In calculating the erosion rates, several assumptions have been made. It was assumed that the terrain immediately after the extrusion of the basalt was essentially flat. While it is not possible to accurately reconstruct...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-350
... to propose an appropriate design method. The assumptions of this method differ in certain respects from those usually made in certain other countries. To check the validity of the observations, a new series of full-scale tests was carried out at an experimental site fitted with measuring instruments...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-522
... characteristics, although this assumption is made whenever conventional two-dimensional slope stability analyses are performed. It is well recognised that there is a need for continuing development of three-dimensional slope stability analysis methods (Stark and Eid, 1998). There are a large number...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-605
... on radial bolting reinforcement of tunnels, presenting improvements over previously published solutions by Stille et al. (1989) and Greuell (1993 and 1994). empirical method practical application assumption numerical computation Reservoir Characterization reinforcement tunnel face lining...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-226
... of classrooms has definitely changed, and in classrooms blackboard or whiteboard may not serve much purpose. Presentation in many classrooms requires a computer and projection device. Nevertheless, the same assumption behind the delivery of content often still applies, despite the technology. The assumptions...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-409
... of liquefied soils (Yasuda et a., 1998). Specimens were saturated, applied back pressure and consolidated. Reservoir Characterization river levee Earthquake shear modulus Upstream Oil & Gas actual settlement assumption safety factor embankment transformation point shiribeshi-toshibetsu...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-057
... in a rock mass composed of a hard crystalline rock.) 3. Hydraulic gradient J (called field gradient) is uniformly distributed over the elementary volume. (This assumption may be true if the flow region is 449 fully cut by many cracks to make a large number of flow paths (Long, et al., 1982). 4. Seepage flow...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 31–September 3, 1986
Paper Number: ISRM-IS-1986-016
... ABSTRACT: The classical interpretation of hydraulic fracturing test results for in situ stress determination relies on a priori assumptions--assumptions that cannot always be justified. A brief description of the hydraulic fracturing stress measurement method is given, the assumptions made...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 21–24, 1981
Paper Number: ISRM-IS-1981-219
... Reservoir Characterization shield assumption ground structure safety different country Engineer safety concept stiffness soft soil tunnel structure bedded ring design criteria tunnel structural design model criteria Design Procedure excavation design model deformation...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 21–24, 1981
Paper Number: ISRM-IS-1981-105
... assumption tensile strength Proceedings of the International Symposium on Weak Rock / Tokyo /21-24 September 1981 and tensile strength of weathered rocks The use of back-calculations to obtain the shear RODOLFO T.SANCIO University Simon Bolivar, Caracas. Venezuela 1 INTRODUCTION In the process...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 27–29, 1978
Paper Number: ISRM-IS-1978-022
... and the discontinuities. Settlements are evaluated with solutions for strip loads on orthotropic media, with appropriate corrections for varying dip of the principally planes of orthotropy. Example computations are included. wellbore integrity discontinuous rock mass assumption rock mass Wellbore Design...

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