نتایج جستجو برای: geometry of bedrock

تعداد نتایج: 21173653  

2011
Brian A. Clarke Douglas W. Burbank

[1] The role of bedrock fractures and rock mass strength is often considered a primary influence on the efficiency of surface processes and the morphology of landscapes. Quantifying bedrock characteristics at hillslope scales, however, has proven difficult. Here, we present a new field‐based method for quantifying the depth and apparent density of bedrock fractures within the shallow subsurface...

Journal: :international journal of civil engineering 0
m. miraboutalebi no. 21, arghavan st., farmanieh, dibaji, code: 1953714453 f. askari no. 21, arghavan st., farmanieh, dibaji, code: 1953714453 o. farzaneh tehran university, engineering faculty, civil engineering department

in this paper, the effect of bedrock inclination on seismic performance of slopes is investigated. the study was conducted based on dynamic analysis of different slopes, evaluation of the earthquake acceleration in sliding mass, and calculating the permanent displacement of the slope, using newmark sliding block. the investigation indicates that variation of the bedrock inclination may cause th...

2016
Guilherme J. C. Gomes Jasper A. Vrugt

Journal: :Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 2016

2010
Chris B. Graham Ross A. Woods Jeffrey J. McDonnell

Please cite this article in press as: Graham, C. doi:10.1016/j.jhydrol.2009.12.015 Hillslope threshold response to storm rainfall is poorly understood. Basic questions regarding the type, location, and flow dynamics of lateral, subsurface flow remain unanswered, even at our most intensively studied field sites. Here we apply a forensic approach where we combined irrigation and excavation experi...

2006
C. Meisina

Shallow earth translational slides and earth flows, affecting colluvial soils derived by the weathering of the clayey bedrock, are a recurrent problem causing damage to buildings and roads in many areas of Apennines. The susceptibility assessment, e.g. slope stability models, requires the preliminary characterization of these superficial covers (lithology, geotechnical and hydraulic parameters)...

2006
I. D. Brewer D. W. Burbank

[1] We introduce a new method that convolves detrital mineral cooling ages with digital elevation models to test numerical models of erosion in collisional orogens. Along a Trans-Himalayan transect in central Nepal, we develop a kinematic and thermal model to predict variations in bedrock cooling ages in modern Himalayan topography. The model assumes a thermal steady state and utilizes a simple...

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