... were carried out to elucidate the slope failure mechanism. Test results revealed that the shale rock has a small angle of external friction, far smaller than the angle of shearing resistance, and its bedding planes at failure sites make a positive acute angle with the horizontal plane. INTRODUCTION...

... for triggering alarm. However, the devices still have a major limitation to obtain the all points-measurement along the vertical section. Reservoir Characterization production logging mechanism pipe production monitoring displacement experiment production control Upstream Oil & Gas fibre...

... the existence of two interconnected mechanisms of deformation in the slope: a fast shallow mechanism (slump-earthflow) and a deeper and slower deformation process (deep-seated creep). This mechanism is fundamentally due to the poor mechanical properties of the deep soils, which are at yield and therefore...

... ABSTRACT: Field and laboratory investigations as well as slope hydrodynamic simulations were carried out to observe the mechanism of landslide at Puncak Area in West Java, Indonesia. Monitoring on water level fluctuations in piezometers were conducted to calibrate the simulation results...

.... Two critical roof failure mechanisms were considered: one for which cracks progressively open until it is assumed that a block falls from the roof (local collapse), and one for which the whole roof collapses (general collapse). The results allow collapse loci for the two mechanisms to be plotted...

... typical failure mechanisms, and outlining their characteristic behaviour from precedent. They assembled a large database of rockslides and proposed nine classes of detachment mechanism, not all of which were identified as having potentially rapid movement. The term "rapid" is suggested (IUGS, 1995...

... the mechanism of debris flow initiation in the Lham Nah Creek Basin (Study Area) in the Khao Luang Mountain Range by analysing the properties of materials involved in debris flows. INTRODUCTION Southern Thailand, particularly the Khao Luang Mountain Range, was subjected to an intense rainfall during...

..., have been highlighted elsewhere, (Waltham, 1992, 1993, 1996: Roodbaraky et al ., 1994). Previous studies have used plaster scale models and Finite Element models (FEM), in order to attempt to simulate failure mechanisms and ultimate failure loads. These have been validated by a single full-scale test...

...NEW ROCK MECHANICS MODELS NEEDED FOR SLOPE STABILITY IN OPEN PIT COAL MINES John V Simmons1 ABSTRACT The science and art of rock mechanics applied to stability of Òsoft rockÓ slopes in open pit coal mines is not as well developed as for Òhard rockÓ metalliferous mines. The reasons...

... mechanisms are considered for the calculation schemes. The numerical results obtained are presented and compared to those given by other authors. INTRODUCTION Over the past twenty years, tunneling in cohesionless soils has been made possible due to recent technological advances including the pressurized...

... metals & mining coal adsorption capacity prone coal Upstream Oil & Gas electromagnetic emission outburst prone coal Reservoir Characterization new model mechanism electromagnetic field structural coal electromagnetic response gas outburst coal sample fracture complex...

... strength mechanism tunnel face macroscopic strength criterion homogeneous material criterion limit load reinforcement contribution geometry design theory bolt reinforcement homogenization approach failure mechanism stability analysis optimization cohesive-frictional soil...

... on databases gathered by the authors in the Yiligarn Craton region of western Australia, and in the Sydney and Bowen coal basins of eastern Australia. The density of the data in these areas is now sufficient to allow regional trends to be defined and used here to examine potential mechanisms that control...

... be very important, at least for the combination of circumstances at hand which might not have been foreseen (but were not necessarily unforeseeable). risk management Upstream Oil & Gas mechanism application landslide Artificial Intelligence risk assessment metals & mining US...

... equilibrium mechanism materials and corrosion well integrity block shape bond stress discontinuity Anchor stability grout bond length requirement reinforcement scheme riser corrosion ground anchor reinforcement strand tendon reinforcement system RECENT ADVANCES IN GROUND ANCHOR AND GROUND...

... ABSTRACT: Mechanisms of slope movements are always the result of a complex stress-strain field induced by factors depends on soil properties and initial conditions and is categorised by different landslide styles. The major aim of this report is to stress the relationship existing between...

.... Specifically, geometric, mechanical and geometric - mechanical models are discussed with emphasis on the latter. When considering slope stability, as well as rock mass behavior in general, it is very important to capture the mechanisms by which the discontinuities interact with each other. This interaction...

..." of a particular uniform size that pass through the "geotextile" with certain porosity and constriction can be analysed statistically. This would give an indication of the mechanism of filtration capability of the fabric with certain filtration characteristics. It can be used to study the filtration mechanism...

.... The mechanisms of flows are not yet well understood, though it is very important for landslide hazard assessment. This paper presents well-documented and selected case records, which are informative for understanding of the mechanism of flows in granular soils. The shear strength mobilized after failure...

... mechanisms (for example, mineral dissolution and precipitation or ion exchange). Batch Testing of CWD Samples and Selected Minerals The test procedure conformed to the guidelines in ASTM D4319-93 (ASTM, 1997a). Each sample was initially oven-dried and then 20 g portions were combined with 80 mL of each...