Showing papers in "Engineering Geology in 1987"

TL;DR: In this paper, the authors examined the stability of a discontinuous rock mass, represented as a blocky mass, and defined it in terms of stress redistribution and formation of hinges, and showed that the anisotropic compliance of the rock mass controls the initial stress distribution and, as small deformational rotations occur, finite deformations with the aniotropic compliances control the stress redistributions.

TL;DR: The Malpasset Dam failure in 1959 was the first failure of an arch dam as discussed by the authors, and the main purpose of this workshop is to try and decide what is certain, what is not and what additional research work is required.

TL;DR: A study of the engineering geological properties, distribution and classification of the major superficial soils of the Niger Delta was carried out as part of a study programme to provide the much needed information and data for the infrastructural development of the region as discussed by the authors.

TL;DR: In this paper, the use of the Burst Proneness index as a simple and reliable measure to indicate the burst prone locations in the mines has been proposed in the Sudbury basin, Canada.

TL;DR: A flexible influence function/zone area approach to subsidence and horizontal displacement prediction is described in detail, with particular emphasis being placed on the applicability of the method to computer prediction.

TL;DR: In this article, the authors reviewed the events leading to the failure of Teton Dam in Idaho on June 5, 1976 and the investigations, conducted over a period of about eight years, to determine the cause of the failure.

TL;DR: In this article, the authors describe a stochastic simulation program used to assess several dispatching rules applicable to small-scale computerized systems for optimizing truck/shovel productivity.

TL;DR: In this article, a multiple regression analysis between initial rate of heating and total temperature rise and thirteen independent variables have generated a set of equations to predict the liability of coal to spontaneous combustion.

TL;DR: In this article, the authors used results of an underground investigation at Comrie Colliery to verify that the roof strata tilt theory is applicable to the Comrie 2 ft Seam and examined the generality of the relationship between convergence and pack resistance, in a gateroad which exhibited minimal deformation.

TL;DR: In this article, the authors present an overview of the data collected during the author's activity in the bentonite business, and of published data and descriptions of bentonite liner practices in the United States.

TL;DR: The Teton Dam failure is one of the most important single events in the history of dam engineering as mentioned in this paper, and it has been widely recognized as the most significant failure in dam engineering history.

TL;DR: In this paper, the authors reviewed the Vajont slide case history from the instrumentation point of view and considered the modern geotechnical view from a modern viewpoint, with reference to the possible prediction of the slide failure and the choice of a strategy to control the rate of failure.

TL;DR: In this paper, the authors examined some of the practical aspects involved in using dynamic programming for ultimate pit design (UPD) and some DP proposals were reviewed and the question of the optimum ultimate pit versus the practical need for generating acceptable non-optimum pits, using minimum computing times and core storage, was examined.

TL;DR: In this article, the intrinsic mechanisms of cutter roof failures were examined by combining field investigations, laboratory testing, underground instrumentation, and numerical modeling, and three-dimensional finite element analyses were employed to validate the cutter roof mechanisms.

TL;DR: In this paper, three-dimensional FE-analyses were carried out taking into account the interaction between the arch dam and the foundat ion rock in a more realistic manner than was possible in the past.

TL;DR: In this paper, the authors investigated the effect of faults on seismicity associated with coal extraction in the North Staffordshire Coalfield, U.K. They showed that seismic events occur if the mine workings cause the redistribution of strata pressure in such a way that sliding movements take place along major faults.

TL;DR: A fuzzy set algorithm to select the optimum mining method for the mine to be planned is presented, which consists of three phases: the initial selection, technical and economic forecasting and the final decision.

TL;DR: The usefulness of sulphur hexafluoride as a tracer gas in mining would be greatly improved if it could be measured in situ on a real-time basis as mentioned in this paper.

TL;DR: In this article, a simple test facility for the determination of the tensile strength of rocks by the direct-pull method is described, based on the use of two split-collar grips suitable for the testing of even very short rock cores.

TL;DR: In this article, the authors reviewed several reported experiences connected with the use of inert gases as a means of assisting in the fighting of mine fires, focusing on present-day methods of using inert gases in fire fighting situations in mines.

TL;DR: A review and evaluation of empirical and analytical subsidence prediction techniques were undertaken as part of a long-term research program into seafloor subsidence in the Sydney Coalfield, Nova Scotia.

TL;DR: In this article, the fundamental aspects of fluid transport of solids in pipelines and open channels are reviewed, and a simplified engineering analysis is developed for turbulent flow for both hydraulic and pneumatic systems.