Showing papers in "Engineering Geology in 2006"

TL;DR: In this article, the Permanent Scatterers (PS) technique was used for landslide assessment by combining the wide-area coverage typical of satellite imagery with the capability of providing displacement data relative to individual image pixels.

TL;DR: In this paper, apart from conventional weighting system, objective weight assignment procedures based on techniques such as artificial neural network (ANN), fuzzy set theory and combined neural and fuzzy set theories have been assessed for preparation of LSZ maps in a part of the Darjeeling Himalayas.

TL;DR: In this article, the authors showed a clear correlation between land subsidence and piezometric drawdown and showed that for 1 m3 of groundwater pumped out in Bangkok Plain, approximately 0.10 m3 ground loss occurred at the surface.

TL;DR: In this article, the influence of the mixture of polypropylene fiber and lime on the engineering properties of a clay-ey soil was investigated and analyzed through scanning electron microscopy (SEM) analysis of the specimens after shearing.

TL;DR: In this article, a series of rock slope deformation and failure analysis using three levels of sophistication is presented. But the authors focus on the use of the Level III hybrid continuum and discontinuum codes with fracture simulation capabilities, which are applicable to a wide spectrum of failure modes.

TL;DR: In this paper, a method for estimating the sensitivity of sandstone rocks to water content, using the published data, is presented, where the authors show that the petrophysical properties of rocks decrease with increasing moisture and this can result in an increase in the mechanical compliance in some cases.

TL;DR: At least thirty-eight large, catastrophic landslides, each either larger than 0.5 M m 3 or longer than 1 km, have occurred in northern British Columbia in the last three decades as mentioned in this paper.

TL;DR: In this article, the Permanent Scatterers (PS) analysis was applied at a regional scale as support for landslide inventory mapping and at local scale for the monitoring of single well-known slope movements.

TL;DR: In this article, the influence of the Chi-Chi earthquake on subsequent rainfall-induced landslides was evaluated by comparing the occurrence of landslides in the Choushui River watershed through eight SPOT images that covered the period from 1996 to 2001.

TL;DR: In this paper, the authors describe and discuss five examples of deep-seated gravitational slope deformation (sackung) along the Insubric Line (Periadriatic Fault) in the Central Italian Alps.

TL;DR: In this paper, the authors defined thresholds of tolerable ground motion from guidelines and regulations on tolerable levels of vibration and from correlations between instrumental strong-motion parameters and intensity, considering the vulnerability of the exposed housing stock.

TL;DR: In this paper, a long-range Terrestrial Laser Scanner (TLS) was used for a detailed rockfall study in a test zone at Vall de Nuria, located in the Eastern Pyrenees.

TL;DR: In this article, a large-scale shaking table model test was conducted to study slope behavior under earthquake conditions, where the model slope was installed into a model box with a length of 4.4 m, width of 1.3 m, and height of 1 2.2 m. The failure surface appeared to be fairly shallow and confined to the slope surface.

TL;DR: In this article, the authors examined the effects of red mud on the unconfined compressive strength, hydraulic conductivity, and swelling percentage of compacted clay liners as a hydraulic barrier.

TL;DR: In this article, a field investigation and the interpretation of aerial photographs taken before and after the 2004 Mid Niigta prefecture earthquake (MJMA 6.8) suggest that reactivation of existing landslides and undercutting of slopes are the most important factors for deep landslides to be triggered by earthquakes.

TL;DR: In this paper, the use of used tire chips mixed with clay-ey soils as a fill material is investigated through a series of soil mechanical tests in order to investigate possibilities of their usage as a lightweight fill material.

TL;DR: In this paper, a study was conducted in three steps: evaluation of the foam characteristics, investigation of pressure buildup by foam injection and the removal of metals by the foam, which was shown to vary between 90% and 99% with stabilities from 17 to 41 min.

TL;DR: The moment magnitude 7.9 Denali Fault, Alaska, earthquake of 3 November 2002 triggered thousands of landslides, primarily rock falls and rock slides, that ranged in volume from rock falls of a few cubic meters to rock avalanches having volumes as great as 20 � 10 6 m 3.

TL;DR: In this article, an ANP model for landslide susceptibility is proposed, priority weights for each parameter controlling the landslide were determined, and a hazard map was prepared of an area in a fragile mountainous terrain in the eastern part of Nepal.

TL;DR: In this paper, the authors proposed a method to detect prospective rock falls mainly consists in observing stereoscopic aerial photographs in order to look for critical configurations, once a critical mass has been detected, its failure probability for a period of the order of one century must be evaluated (or its life expectancy).

TL;DR: In this paper, the authors mapped the Tsaoling landslide area and estimated the landslide volume, using a high-resolution digital elevation model from airborne LiDAR (Light Detection And Ranging), aerial photographs and topographic maps.

TL;DR: A comprehensive database of larger Rock Slope Failures (RSFs) has been compiled and characterised for a whole mountain range, possibly for the first time apart from Iceland.

TL;DR: A multi-method approach for the assessment of the stability of natural slopes and landslide hazard mapping applied to the Dakar coastal region is presented in this paper, which is based on the effective combination of geotechnical field and laboratory works, of GIS, and of mechanical (deterministic and numerical) stability analysis.

TL;DR: Weidner et al. as discussed by the authors used photogrammetric, GPS and geophysical data to derive a constraint on the kinematics of the sagging process of the Talzuschub in Abhangigkeit von Niederschlagen.

TL;DR: In this article, a first order site-specific hazard estimate using a Probablistic Seismic Hazard Analysis (PSHA) is presented, which predicts, and observes, relatively high Peak Ground Accelerations (PGA).

TL;DR: In this paper, the reliability of these parameters for the evaluation of geomechanical properties was tested on the set of granitic rocks showing pronounced variability in rock mechanical properties, including grain size.

TL;DR: In this paper, an Artificial Neural Networks (ANN) model that was constructed by seven significant factors using back-propagation (BP) algorithm was proposed for occurrence predictions of debris flows.

TL;DR: In this article, the authors investigated the liquefaction of clay-sand mixtures and natural clay-ey soils collected from the sliding surfaces of earthquake-induced landslides by means of a ring-shear apparatus.

TL;DR: In this paper, a set of physico-chemical experiments including Atterberg limits, permeability, consolidation, double hydrometer, ion exchange, and pH measurement were performed to investigate the fundamental mechanism of soil-alum interaction.

TL;DR: In this article, semi-dynamic leaching tests were conducted for artificial soils contaminated with lead oxide (PbO) in order to assess the long-term leaching behavior of lead, and the results indicated that S/S treatment was effective in immobilizing Pb and the treated soils can be considered acceptable for controlled utilization based on diffusion coefficients and leachability indices.