392011258-Clasificacion-Geomecanica-de-Laubscher
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DISEÑO DEL SOSTENIMIENTO<br />
• L: Longitud <strong>de</strong>l perno.<br />
• B: Ancho libre <strong>de</strong> la labor minera.<br />
• F: Factor empírico, que <strong>de</strong>pen<strong>de</strong> <strong>de</strong> la calidad geomecánica <strong>de</strong> la roca.<br />
• L = 1 + 0. 33 x B x F
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