WebOpen stope mining data are used to assess quantitatively the stope dilution level. The parameters considered in the study included the stope depth, the stope average dip, the … WebThe Equivalent Linear Overbreak Slough, ELOS (Clark and Pakalnis, 1997), is an indirect quantitative measure of dilution. ELOS is defined in Equation 5. The ELOS stability graph database is...
Design in Weak Rock Masses: Nevada Underground Mining Operations - CDC
WebJun 26, 2024 · According to Madenova & Suorineni (2024), to date, five major stability graph variations exist: the Modified Mathews’ stability graph by Potvin (1988), the extended Mathews’ stability graph by Mawdesley & Trueman (2003), the equivalent linear overbreak slough (ELOS) stability graph proposed by Clark & Pakalnis (1997), the stability graph … Webequivalent linear overbreak/slough (ELOS) is the preferred measure. This measure enables. mines with different mining widths to be readily compared. This is a particularly important. consideration when comparing narrow-vein stoping to large open stoping. The development. and wide use of cavity monitoring surveys (CMS) has facilitated accurate ... is an airplane a faraday cage
(PDF) Dilution-based Stability Graph for Open Stope …
WebJul 4, 2024 · In this paper, three-dimensional finite-difference continuum modelling (FLAC3D v6, Itasca Consulting Group 2024) is used to calibrate and verify a new criterion to estimate hangingwall overbreak. Models are simulated using this software because of the flexibility that it provides using the FISH programming language. WebThe equivalent linear overbreak/slough, ELOS, concept is used to quantify the dilution. The procedure is applicable to blocky and moderately jointed rock masses, and 2D or 3D numerical codes can be used. Knowledge of the extent of potential sloughage helps in support design as it provides an estimate of support demand and cablebolt length. Two ... WebOpen stope mining data are used to assess quantitatively the stope dilution level. The parameters considered in the study included the stope depth, the stope average dip, the hydraulic radius, surface character, RMR, powder factor and the ELOS (equivalent linear overbreak/slough) parameter. is an air fryer the same as a toaster oven