نتایج جستجو برای: geological uncertainty

تعداد نتایج: 146317  

There are some large scale orebodies that extend from surface to the extreme depths of the ground. Such orebodies should be extracted by a combination of surface and underground mining methods. Economically, it is highly important to know the limit of upper and lower mining activities. This concern leads the mine designers to the transition problem, which is one of the most complicated problems...

Journal: :Computers & Geosciences 2011
Thomas Viard Guillaume Caumon Bruno Lévy

3D geological models commonly built to manage natural resources are much affected by uncertainty because most of the subsurface is inaccessible to direct observation. Appropriate ways to intuitively visualize uncertainties are therefore critical to draw appropriate decisions. However, empirical assessments of uncertainty visualization for decision making are currently limited to two-dimensional...

Journal: :ISPRS international journal of geo-information 2023

Three-dimensional geological modeling is a process of interpreting features from limited sample data and making predictions, which can be converted into classification task for grid units in the space. In sedimentary settings, it difficult single to comprehensively express complex spatio-temporal relationships underground response this problem, we proposed progressive strategy reconstruct subsu...

2007
Rachel Wood Andrew Curtis

Geological information can be used to solve many practical and theoretical problems, both within and outside of the discipline of geology. These include analysis of ground stability, predicting subsurface water or hydrocarbon reserves, assessment of risk due to natural hazards, and many others. In many cases, geological information is provided as an a priori component of the solution (i.e. info...

Introduction: Many natural phenomena have many variables that make it difficult to find relationships between them using common mathematical methods. This problem, along with the impossibility of measuring all elements of nature, has led to a major evolution in the way of understanding and explaining phenomena. In this way, one can use the fractal geometry with the theory that many natural phen...

Journal: :Journal of the Japan Society of Engineering Geology 2000

2015
M.Mohsin Siraj Jan Dirk Jansen

Model-based economic optimization of oil production suffers from high levels of uncertainty. The limited knowledge of reservoir model parameters and varying economic conditions are the main contributors of uncertainty. The negative impact of these uncertainties on production strategy increases and becomes profound with time. In this work, a multi-objective optimization problem is formulated whi...

Journal: :int. journal of mining & geo-engineering 2014
abbas eftekhari majid taromi mahdi saeidi

slope stability analysis is a geotechnical engineering problem characterized by many sources ofuncertainty. in slope stability computations, some of these sources are encountered, such as geologicaldetails missed in the exploration program, estimation of soil properties that are difficult to quantifyand many other relevant factors. therefore, accurate reproduction of the spatial variability in ...

2012
James P.M. Syvitski

1) Determine the uncertainty related to the natural variability in the environmental parameters that drive the modular modeling approach of 2D-SedFlux (primitive geological parameters). These include ocean climate and the sediment supply to the ocean margin from land. Of interest is how this variability couples with, or is independent of, model error (numerical, prediction-precision, and accura...

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