Showing papers in "Engineering Geology in 2010"

TL;DR: In this article, the authors developed a GIS-aided urban flood hazard zoning of the two cities applying multicriteria decision analysis and evaluated it by means of uncertainty and sensitivity analysis.

TL;DR: In this paper, both bivariate and multivariate statistical analyses were used to predict the spatial distribution of landslides in the Cuyahoga River watershed, northeastern Ohio, U.S.A. The relationship between landslides and various instability factors contributing to their occurrence was evaluated using a Geographic Information System (GIS) based investigation.

TL;DR: Different techniques to evaluate model performance are discussed and tested using shallow landslide/debris-flow susceptibility models recently presented in the literature and an evaluation technique based on the minimization of costs that may arise from the adoption of the model as a land management regulatory tool is presented.

TL;DR: In this article, the authors used an experimental approach to study the influence of curing temperature and combined effect of temperature and CPB components on the main mechanical properties (strength, modulus of elasticity, and stress-strain behaviour) of CPB.

TL;DR: In this article, a spatial database of landslides is built by interpreting the remote sensing (RS) data which covers 11 counties severely damaged by the 2008.5.12 Wenchuan Earthquake (seismic magnitude Mw 7.9 according to the USGS).

TL;DR: This work addresses a new methodology for the use of DInSAR data, at both full- and low-resolutions, in landslide analyses at different scales via the integration of remote sensing data with simple geomorphological models and geometric considerations.

TL;DR: A series of laboratory testing has been performed to assess the effects of cyclic loading on compressive strength, elasticity and time-dependency of the Maha Sarakham rock salt as mentioned in this paper.

TL;DR: In this article, the authors investigated the desiccation cracking behavior at three temperatures (22, 60 and 105°C) and found that the initial critical water content (wIC), which corresponds to the initiation of desiliccation crack, increases with temperature rise, and the ratio RSC increases with decreasing water content and then keeps almost constant when the water content becomes lower than the critical Water Content (wFC).

TL;DR: Choi et al. as mentioned in this paper constructed a decision tree using Quinlan's algorithm C4.5 for landslide susceptibility analysis and applied it to landslide susceptibility mapping, where the susceptibility of landslide occurrence was then deduced using leaf-node ranking or m-branch smoothing.

TL;DR: In this paper, a quality assurance system and a quality ranking scheme were developed for hydraulic fracturing stress measurements under specific conditions encountered in Chinese underground coal mines and a total of 97 stress data records of A and B quality were used to investigate the distribution characteristics of in-situ stresses within the coal districts.

TL;DR: In this paper, a review of the former studies, achievements on experimental and theoretic results obtained on compacted GMZ bentonite specimens including basic properties, thermal, hydraulic and mechanical behaviors are presented.

TL;DR: In this article, two types of Hungarian travertine, a massive less porous and a laminated porous type, were tested under laboratory conditions to assess the performance and durability of the stone to be used as replacement stone in reconstruction works.

TL;DR: An advanced monitoring technique based on radar interferometry and implemented by using a ground-based instrumentation (GBInSAR) has been applied for monitoring the Beauregard Deep Seated Gravitational Slope Deformation as mentioned in this paper.

TL;DR: Nonlinear SVM technique is applied in a highly heterogeneous sandstone reservoir to classify electrofacies and predict permeability distributions and statistical error analysis shows that the SVM method yields comparable or superior classification of the lithology and estimates of the permeability than the neural network methods.

TL;DR: In this paper, a Bayesian framework is developed in conjunction with cone penetration tests to estimate the sand effective friction angle and with random field theory to model the inherent spatial variability. And the posterior variance of the friction angle arises from three sources, namely, the spatial variability (aleatory) and its uncertainty (epistemic) as well as the uncertainty in the mean value.

TL;DR: In this article, a commercially available finite difference numerical code FLAC 5.0 is used for modeling the permeability parameter as spatially correlated log-normally distributed random variable and its influence on the steady state seepage flow and on the slope stability analysis are studied.

TL;DR: In this paper, the influence of pore size and their distribution on salt uptake and salt crystallization damage was evaluated, and it was found that pore sizes smaller than 5µm are more important in liquid absorption in the impregnation-drying type of salt weathering test.

TL;DR: In this article, the effects of hydraulic properties of soil on rainfall-induced slope failure were investigated through a series of parametric studies, and the results showed that soil-water characteristic curve fitting parameters affect the stability of poor drainage soil slopes more significantly than the relative stability of good drainage soil slope.

TL;DR: The soil water characteristic curve (SWCC) as discussed by the authors describes the relationship between water content and soil suction in unsaturated soils, and is used to measure the water characteristics of unsaturated soil.

TL;DR: In this paper, an empirical equation is introduced to predict peak shear displacement, which considers the effect of normal stress and works for all types of rock discontinuities, even sawed fractures.

TL;DR: In this article, the geometry, kinematics and temporal deformation characteristics of a deep-seated rockslide system, the Hochmais-Atemkopf, situated above the Gepatsch dam reservoir in Northern Tyrol, Austria, were presented.

TL;DR: In this paper, an experimental study was performed in order to obtain the mechanical properties of lime/cement treated soils, and the experimental results were used in a numerical analysis to understand the load transfer mechanisms in the piled earth platforms depending on the type of soil treatment, pile spacing and height of earth platform.

TL;DR: In this paper, an approach to slope stability assessment is presented that copes with existing data limitations in an inaccessible alpine terrain, with careful consideration of data limitations prevailing in such areas.

TL;DR: In this article, the authors applied the weights-of-evidence model to evaluate ground subsidence spatial hazard near abandoned underground coal mines (AUCMs) at Magyori area, Samcheok City in Korea using GIS.

TL;DR: In this article, an approach was developed to study the subsidence associated with underground coal mining activity in the West Cliff colliery in the Southern Coalfield of NSW using multiple SAR differential interferograms.

TL;DR: In this article, a neural network was used to predict mean particle size resulting from blast fragmentation for each of the obtained similarity groups, and multivariate regression models were also developed for the same two similarity groups.

TL;DR: In this paper, a model for landslide hazard assessment on natural slopes is presented for a transportation corridor of the Nilgiri Hills in southern India, where the data required for the hazard assessment were mostly obtained from historical records.

TL;DR: In this article, the authors describe a complex failure that occurred in an open-pit mine in Valencia, Spain, where the failure mechanism was interpreted as complex toppling combining toppling and circular failure.

TL;DR: In this article, the authors apply a novel approach to identify the possible causes of specific crack patterns on a tunnel lining surface resulting from neighboring slope instability, and provide some suggestions for tunnel structural safety inspections and associated techniques.

TL;DR: In this paper, an advanced InSAR technique was applied to two independent ASAR data sets along ascending (25 scenes) and descending (22 scenes) orbits acquired between 2003 and 2008, and allowed them to generate deformation velocity maps and displacement time series for the investigated area.