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Keywords: compression
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-041
... Upstream Oil & Gas Proc cohesion strength resistance rock joint Reservoir Characterization friction water content Geotechnique reservoir geomechanics displacement specimen expression suction compression casagrande critical state effective stress Skempton envelope shear...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-071
... inundating, high saturation of the specimen was achieved solely by decreasing the original intergranular porosity (Feda, 1995). Compression and collapse The research revealed different kinds of collapse with the material. Further to the common collapse by wetting 56 7 8 9 10 0.01 1 100 10000 1000000 Time...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-066
.... The mechanism of the porewater pressure increase due to creep is explained also in this paper. Finite element consolidation modelling of the soils underneath Berthierville test embankment is then carried out. It is found that the compression of the clay layer computed from the FE model is in good agreement...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-033
... mechanics discontinuity Reservoir Characterization complex reservoir orientation geometry compression fracture coalescence fracture Coalescence fracture propagation intensity mechanism Dershowitz fracture system propagation FRACTURE SYSTEMS, FRACTURE PROPAGATION AND COALESCENCE Herbert H...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-067
... compression of the clay. In particular, the influence that the change from a lightly over consolidated state to a normally consolidated state has on the secondary compression is investigated. The results show Ca is low before the preconsolidation pressure is reached, peaks at a value of approximately 0.055...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-069
... instrumentation has been installed to monitor the embankment performance during and after construction of the embankment. Reservoir Characterization coolongolook freeway bulahdelah Earthfill compression Upstream Oil & Gas criteria long term compression highway road embankment embankment...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-150
... ABSTRACT: This article presents the results of a study to determine the geomechanical characteristics of waste dumped at landfills, using a large compression-shear experimental device. After determining the physical characteristics of the sample and weight per unit volume of the waste...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-089
...SPECIFIC SOIL BEHAVIOUR-COLLAPSES Jaroslav Feda1 ABSTRACT Collapsible behaviour of geomaterials, which is the expression of their complex structure, may seriously modify their constitutive modelling. Different kinds of collapses are classified starting with hydrocollapse, garlandlike compression...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-030
... and to strengthen existing dams. Upstream Oil & Gas Reservoir Characterization impoundment reservoir geomechanics pore pressure specimen loading strength rehabilitation excavation Chile mechanism backfill metals & mining Troncoso compression deposit Engineering Merriespruit slime...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-295
... frequency seismic load preload high prestress Reservoir Characterization plp gr structure Tatsuoka tie rod prestress cyclic loading natural frequency backfill compression Upstream Oil & Gas seismic stability geotextile-reinforced soil structure resonant condition stiffness...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-353
... movement Test area Thickness Stockholm grain size distribution Lund settlement Upstream Oil & Gas maximal horizontal movement test site kPa compaction round settlement gauge pore pressure increase boulder organic soil compression permeability COMPACTION BY BLASTING Nenad Jelisic1...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-345
... ABSTRACT: A project was undertaken in Colombo for construction of a housing scheme comprising 340 units of twostorey apartment blocks. Subsurface investigations revealed the existence of substantial amounts of compressible material, which would not only have a large primary compression...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-456
... ABSTRACT: Natural surface water and pore water in the subsoil is not an ideal, incompressible fluid. Small microscopic air (gas) bubbles are dispersed in the water, so the fluid shows a certain compressibility. Compressible pore water causes a delayed reaction of the pore water pressure on any...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-544
... ABSTRACT: An efficient design of foundations for transmission line towers has always been a challenge for the engineers due to the variety and cyclic nature of the loads. Foundations, especially for the four-legged towers, are subjected to all types of loads (compression, tension, torsion...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-229
... rock stress condition incipient failure vertical loading compression MECHANISMS OF RESERVOIR INDUCED SEISMICITY Peter M. James1 ABSTRACT The variable characteristics exhibited by reservoir induced seismicity (RIS) can be adequately explained by the reduction in effective in situ stresses...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-220
... ABSTRACT: This paper presents compressibility data for some of the residual soils in the Auckland area. These soils are unusual in two respects. First, presumably because of the residual origin of the soils, the water content is highly variable even within the confines of a block sample...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-022
... PREPARATION Two sets of sandstone rocks were selected for analysis in this regard - the first being Berea sands tone, a medium grained low poros ity sa~dstone of medium to high strength (unco- nf~ned compressive strength 75 to 125 Mpa), and Dobb's Valley sandstone, a coarse grained medium porosity sandstone...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 10–12, 1990
Paper Number: ISRM-IS-1990-015
... behaviour of rock (S-N curves) were clarified. 1 INTRODUCTION In Superconductive Magnetic Energy Storage (SMES). an electromagnetic cyclic load of coils generated by the charged magnet, is supported by the rock wall of an annular rock cavern. When natural gas or compressed air is stored in lined rock...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-007
... Verhalten von Sandstein M.Kwasniewski Rock Mechanics Laboratory, Faculty of Mining, Silesian Technical University. Gliwice, Poland ABSTRACT: ResulLs or Lhe convenLional Lriaxial compression LesLs on ulLi- maLe sLrengLh as well as on Lhe mode or derormaLion or nineLy-rive (101) various sandsLones rrom Lhe...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-080
... the shaft is excavated, and defines the components of the stress state (principal stresses). After excavation the stress state is given by (4) (5) (compression is negative) (2) where r is distance in the radial direction and ro is the radius of the shaft at t = O. The principal stresses are usually...

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