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Keywords: ground surface
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-258
... the ground surface are clearly depicted. Amplification of wave in shallow layers is observed in the results of both methods. Moreover, the ratio of the amplitudes of incident and reflected wave models provides some idea about damping in shallow ground layers. INTRODUCTION Among the methods used...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-312
..., with relatively high values close to the ground surface. By interpreting the results of the oedometer tests as suggested by Nagaraj et al. (1990) to take into account the effects of sample disturbance, a preconsolidation pressure 'c between 30 and 40 kPa ( )7.125.1 OCR is estimated. On the other hand a value...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-036
... Engineering Yasuda ground flow tokimatsu ground surface Earthquake Bridge Upstream Oil & Gas Ishihara pile foundation seismic deformation method foundation Reservoir Characterization displacement settlement quay wall design method hyogoken-nambu earthquake ground...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-042
... the experience of the writer, concerning well documented cases of landslides, numerical analyses of slope behaviour and any other element useful to clarify such a relationship. slope movement slope failure Soil property ground surface shear zone rupture stress field pre-failure stage Upstream Oil...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-171
... investigation techniques were considered. Borehole seismic testing was initially considered but could not be used as this method involves drilling to depth while seismic testing from within the tunnel was inappropriate because signal cables could not easily be linked between the tunnel and the ground surface...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-391
...). Es is related to the pressuremeter modulus and a factor dependent on the soil type. Upstream Oil & Gas elastic zone ground surface lateral deflection good agreement average value maximal lateral subgrade reaction equation boundary condition soil reaction pile head deflection...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-558
.... It also presents the deformations and damages that had been recorded. INTRODUCTION It is well known that the horizontal deformation of a deep, tied-back wall, causes settlement of the ground surface behind the wall, which usually affects nearby structures. The horizontal deformations in such a system...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-510
... drilling fluids and materials pore pressure ground surface exposure drilling fluid management & disposal overconsolidated clay specimen Upstream Oil & Gas osmotic softening undisturbed specimen rainwater Bisaccia clay Marino clay clay fraction clay shale void ratio...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-520
...). Various parameters such as rainfall intensity and duration, return periods, wetting and drying history of soilwater characteristic curves, and water permeability were considered in the 2D analyses. flow in porous media ground surface section xx groundwater response Upstream Oil & Gas...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-575
... were constructed. Tunnel Mainz wandersmann-tunnel north deep excavation rail transportation shield ingenieursozietät prof construction Reservoir Characterization ground surface soft ground formwork settlement new mainz tunnel geotechnical monitoring deformation ground...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-535
... that the soil has hysteresis properties and every soil layer is made from an homogenous and elastoplastic material. The were presumed and then observed phenomena like: the variation of the underground water level, settlements on the ground surface, degradation of some underground structural elements etc., all...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-565
... that will not induce any damage to the adjacent areas normally controls the depth of excavations. knowledge management fem mesh Upstream Oil & Gas teparaksa water management soil stiffness displacement Reservoir Characterization ground surface deep excavation final excavation stage soft bangkok...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-588
... ABSTRACT: Around 20% of Gauteng Province and most of the gold mining districts of the Far West Rand are underlain by dolomitic formations. Ground surface instability may occur in such areas. Dewatering associated with mining in the gold bearing reefs of the Far West Rand, which underlie...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 12–16, 1988
Paper Number: ISRM-IS-1988-073
.... Results of the elastic wave exploration. Elevation Vp*l Vs*2 Poisson's (m) (lan/s) (lan/s)Ratio *1 Primary wave velocity *2 Secondary wave velocity. weathered stratum predominant frequency Observation Point ground surface service tunnel Power spectra cross section earthquake record...
Proceedings Papers

Paper presented at the ISRM International Symposium, May 26–28, 1982
Paper Number: ISRM-IS-1982-034
... or not the dynamic stress and strain of non-uniform rock mass including non-linear behavior can be analysed reasonably and accurately by practical means, 3) whether or not the characteristics of input seismic motion underground are different from those at the ground surface ordinally known and 4) how an actual...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 21–24, 1981
Paper Number: ISRM-IS-1981-079
... measurement Groundwater Flow groundwater potential hydrostatic pressure packer permeability flow in porous media ground surface Research Institute Motojima apparatus geological map Proceedings of the International Symposium on Weak Rock /Tokyo /21-24 September 1981 Proposal for the groundwater...

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