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Keywords: estimation
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Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-425
... and explosive behaviour. From the view point of lithology it is a rock type of rhyolite with secondary feldspar. The rhyolite was the subject to extensive denudation in the Pannonian period. orientation disintegration stability ground transportation stability analysis plane fussgänger estimation...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-482
...ESTIMATION OF FAILURE FREQUENCY OF SOIL CUT SLOPES USING RAINFALL AND SLOPE INFORMATION P L Richard Pang, Wai-keung Pun and Yat-fung Yu1 ABSTRACT The Geotechnical Engineering Office keeps comprehensive rainfall and landslide data. A GIS database of all sizeable man-made slopes and retaining walls...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-584
... values are estimated from empirical correlations based on past experiences. Rowe et al (1992) presented a theoretically-based method for the estimation of ground loss from first principles. This method considers the parameters related to tunnel boring method and soil conditions. In this paper, design...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-625
... was undertaken as a part of the DEEPMINE Collaborative Research Programme. Several subtasks were defined: an estimation of the state of stress, a compilation of relevant rock mass properties, an estimation of the level of seismicity, an estimation of the extent and nature of the fracture envelope around...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-191
...-plastic components but differ in detail from those of reconstituted clays. In particular, pre-yield volume changes and yield loci are different from those proposed in Modified Cam Clay. The work reported in this paper examines the estimation of insitu stresses and the pre-yield behaviour...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-254
...Estimation of Deep and Shallow Soil Structures using H/V Spectrum of Densely Measured Microtremor Records Jun Tobita1, Nobuo Fukuwa2 and Masaru Nakano3 ABSTRACT In order to estimate characteristics of ground motion and underground structure, spectral ratios between horizontal and vertical component...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-185
... caisson under uplift loading is included, and results of finite element modelling are presented. A simplified method for the estimation of the uplift capacity for suction caissons is described, based on the results of the finite element study. The expressions developed in this paper take into account...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-409
... ABSTRACT: A simple method to estimate liquefaction- induced deformation was developed to estimate the settlement of river levees. In the analyses the author assumed that the residual deformation would occur in liquefied ground due to the reduction of shear modulus. Selected levees were damaged...
Proceedings Papers

Paper presented at the ISRM International Symposium, November 19–24, 2000
Paper Number: ISRM-IS-2000-034
... effect on the estimates obtained of the material properties. The results of a recent analysis of a large data base of test results is then presented. This demonstrates that there are inadequacies in the Hoek-Brown empirical failure criterion as currently proposed for intact rock and, by inference...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-185
... RESUME: Pour estimer les contraintes in-situ, un moyen peu coûteux est l'etude du discage lorsque celui-ci apparaît. Deux approches sont presentees ici. La premiere consiste en une etude fine de la morphologie des disques et de leur eventuelle ovalisation. Ces observations simples permettent...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-051
... ABSTRACT: A method for estimating the in situ thermal conductivity at basin scale from various well logs is presented. This method is based on the use of the geometric mean model for estimating the thermal conductivity of the different lithofacies of a given well; the various well logs...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-059
... plans to estimate the joint distribution parameter must be discussed for a parametric estimation. We suggest serial job flows for joint sampling, estimation, and modelling methods (2-D, 3-D) of joint distribution through limited information to be obtained at sampling points. 1. FOREWORD Recently...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-130
... ABSTRACT: Experience coming from the Kola super deep and Cajon Pass wells clearly indicates the wellbore breakout analysis and the differential velocity analysis appear most promising and feasible methods of in situ stress estimation at great depth, provided an adequate data set of core...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 30–September 2, 1989
Paper Number: ISRM-IS-1989-080
... the perturbation of the rock-mass by a vertical-cylindrical opening and calculates the initial distribution of safety factor around the opening. Then, changes with time in the safety factor, caused by microcracking are estimated to find: the movement of the opening wall, the strain in the radial direction...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 12–16, 1988
Paper Number: ISRM-IS-1988-059
..., caused by a flood of 0.2 per cent probability (the design probability being 1.0–0.5 per cent) in the foundation grouping was estimated to be 141 mill. doll. Investigations into the mechanism of possible failures is too of importance for such small dams as the Sargazon embankment dam impounding a storage...
Proceedings Papers

Paper presented at the ISRM International Symposium, August 31–September 3, 1986
Paper Number: ISRM-IS-1986-041
... of the robustness of these results. After having described the choices Made for each Method, the paper presents the statistical approaches developed to appreciate the quality of the measurements and to estimate the representatively of the final result obtained. The effectiveness of these approaches is tested...
Proceedings Papers

Paper presented at the ISRM International Symposium, May 26–28, 1982
Paper Number: ISRM-IS-1982-007
... including the use of its results for the estimation of the stability of rooms erected underground is shown. ZUSAMMENFASSUNG: Es handelt sich um eine Prognose der Verformungen und Zerstorungen des vielschichtigen Hangendgebirges uber den benachbarten Kavernen im Sedi- mentgestein mit Anwendung der reel len...
Proceedings Papers

Paper presented at the ISRM International Symposium, May 26–28, 1982
Paper Number: ISRM-IS-1982-038
... installations and estimating in dolerite of large-block struc- the underground workings strength ture (Kelmi & Vittenberg 1975). The and stability. The fundamentals of clear span of the machine room is the method, inclUding 10 following 24 m, the maximum height - 48 m, stages, has been published earlier...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 21–24, 1981
Paper Number: ISRM-IS-1981-042
...Proceedings of the International Symposium on Weak Rock / Tokyo /21-24 September 1981 Evaluation of tensile strength of fractured rock according to the estimation of the degree of their stability N.N.MASLOV, T.V.PAVLISHEVA & P.A.PHONAREV Moscow Automobile & Roads Institute, Moscow, USSR SUMMARY...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 21–24, 1981
Paper Number: ISRM-IS-1981-194
... For investigating the geological activity of faults, constructing underground elec- tric power stations or deep tunnels and evaluating their stability, it is very im- Portant to estimate the geo-stress compo- nents of the surrounding rock. Civil Engineering Laboratory of CRIEPI has developed two kinds of methods...

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