کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5787511 | 1641757 | 2017 | 39 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spatial modeling of discontinuity intensity from borehole observations at El Teniente mine, Chile
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
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چکیده انگلیسی
By using geostatistical simulation techniques, the spatial prediction of the P32 and the corresponding measures of uncertainty can be obtained on a block-by-block basis. This methodology is applied to a data set from the El Teniente copper mine, Codelco-Chile. The objective is to map the expected values of the intensity of stockwork veins with a weak infill mineral assemblage and a typical thickness greater than 1Â mm, which are referred to as weak veins. Confidence limits on this intensity and its probability of exceeding given critical values are also estimated. The quality of the prediction and of the uncertainty quantification is checked by leave-one-out cross-validation. The resulting confidence limits and probability maps can be used as indicators to define geotechnical domains in the rock mass.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Geology - Volume 228, 13 October 2017, Pages 97-106
Journal: Engineering Geology - Volume 228, 13 October 2017, Pages 97-106
نویسندگان
Amin Hekmatnejad, Xavier Emery, Andrés Brzovic, Paulina Schachter, Javier A. Vallejos,