Estimación de Pilares-Minería subterránea.
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1 Estimación de Luz máxima (Techo => Roca Caja en este caso) 5 21 t (m) 1 L (m) 21.8 2 Estimación de dilución t corresponde al ancho de la viga, mediciones re E 30 L (m) 21.8 H (m) 10 n(m) 5.0 %dil 24.8% 3 Resistencia del pilar (criterio Hoek and Brow (Pilar => Roca Mineral en este caso) 0 Pilares no confinados artificialmente, peor caso estimación conservadora UCS (MPa) 230 mi 30 (de la tabla rocas) GSI 79 GSI >=25 a 0.5 s 0.10 14.17 71.6 Profundidad (m) 350 H (m) 10 a 0.46 Salamon and Munro (1967) b 0.66 Salamon and Munro (1967) 7.35 Pilares Cuadrados Configuracion FS R 1 7 15.4 75.5 38.4 0.51 90.3 sT (MPa) g (KN/m3) s3 (MPa) mb s1(MPa) sz (MPa) 4 Diseño de configuracion Wp W0 sp (MPa) Sp(MPa) GSI >=25 GSI <25 t L T 2 2 g s 2 4 32Et L b H W K S a p 5 . 0 9 100 exp a GSI s 2 65 . 0 0 G a s 28 100 exp GSI m m i b a ci b ci s m s s s s s ' 3 ' 3 ' 1
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En el presente documento se presenta la configuración de pilares para minería subterránea.
Transcript of Estimación de Pilares-Minería subterránea.
H&B-S&M
1 Estimacin de Luz mxima(Techo => Roca Caja en este caso)
sT (MPa)5g (KN/m3)21t (m)1L (m)21.8
2 Estimacin de dilucint corresponde al ancho de la viga, mediciones reales indican que tiene como valor aprox. 1 m
E30L (m)21.8H (m)10n(m)5.0%dil24.8%
3 Resistencia del pilar (criterio Hoek and Brown)(Pilar => Roca Mineral en este caso)
s3 (MPa)0Pilares no confinados artificialmente, peor caso estimacin conservadoraUCS (MPa)230mi30(de la tabla rocas)GSI79GSI >=25GSI = RMR(76)a0.5s0.10mb14.17s1(MPa)71.6
Profundidad (m)350H (m)10a0.46Salamon and Munro (1967)b0.66Salamon and Munro (1967)sz (MPa)7.35
4 Diseo de configuracionPilares Cuadrados
ConfiguracionWpW0sp (MPa)Sp(MPa)FSRh (m)%Dil1715.475.538.40.5190.31.246.20%2815.463.040.80.6588.31.246.20%3915.454.243.10.7986.41.246.20%41015.447.545.20.9584.51.246.20%51115.442.447.21.1182.71.246.20%61215.438.449.11.2880.91.246.20%71315.435.251.01.4579.11.246.20%81415.432.552.81.6277.41.246.20%91515.430.254.51.8075.71.246.20%101615.428.456.11.9874.11.246.20%111715.426.757.72.1672.51.246.20%121815.425.459.22.3471.01.246.20%131915.424.160.72.5269.51.246.20%142015.423.162.22.6968.11.246.20%152115.422.163.62.8766.81.246.20%162215.421.364.93.0565.51.246.20%172315.420.566.33.2364.21.246.20%182415.419.867.63.4163.01.246.20%192515.419.268.93.5861.81.246.20%202615.418.770.13.7660.61.246.20%212715.418.271.43.9359.51.246.20%222815.417.772.64.1058.41.246.20%232915.417.373.74.2757.41.246.20%243015.416.974.94.4456.41.246.20%253115.416.576.04.6155.41.246.20%263215.416.177.24.7854.51.246.20%273315.415.878.34.9453.61.246.20%283415.415.579.35.1152.71.246.20%293515.415.380.45.2751.81.246.20%303615.415.081.55.4351.01.246.20%313715.414.882.55.5950.21.246.20%323815.414.583.55.7549.41.246.20%333915.414.384.55.9048.71.246.20%344015.414.185.56.0647.91.246.20%354115.413.986.56.2147.21.246.20%364215.413.787.46.3646.51.246.20%374315.413.688.46.5145.81.246.20%384415.413.489.36.6645.21.246.20%
GSI >=25
GSI Roca Caja en este caso)
sT (MPa)5g (KN/m3)21t (m)1t corresponde al ancho de la viga, mediciones reales indican que tiene como valor aprox. 1 mL (m)21.8
2 Estimacin de dilucin
E30L (m)21.8H (m)10n(m)5.0%dil24.8%
3 Carga vertical
Profundidad (m)350sz (MPa)7.35
4 Parametros Diseno
H (m)10UCS200
4 Diseo de configuracionPilares Cuadrados
ConfiguracionWpW0sp (MPa)CpavKSp(MPa)FSRh (m)%Dil1415.4173.40.161.0103.80.6095.81.246.20%2515.4122.70.211.1112.30.9194.01.246.20%3615.493.80.241.3119.41.2792.21.246.20%4715.475.50.271.4125.81.6790.31.246.20%5815.463.00.301.6131.52.0988.31.246.20%6915.454.20.321.7136.92.5386.41.246.20%71015.447.50.351.8141.92.9984.51.246.20%81115.442.40.361.9146.73.4682.71.246.20%91215.438.40.382.0151.23.9480.91.246.20%101315.435.20.402.1155.64.4379.11.246.20%111415.432.50.412.2159.84.9277.41.246.20%121515.430.20.432.3163.95.4275.71.246.20%131615.428.40.442.4167.95.9274.11.246.20%141715.426.70.452.4171.86.4272.51.246.20%151815.425.40.462.5175.66.9371.01.246.20%161915.424.10.472.6179.47.4369.51.246.20%172015.423.10.482.7183.07.9468.11.246.20%182115.422.10.492.8186.78.4466.81.246.20%192215.421.30.502.8190.28.9465.51.246.20%202315.420.50.512.9193.89.4464.21.246.20%212415.419.80.523.0197.39.9463.01.246.20%222515.419.20.533.1200.810.4461.81.246.20%232615.418.70.543.2204.210.9460.61.246.20%242715.418.20.543.2207.611.4459.51.246.20%252815.417.70.553.3211.011.9358.41.246.20%262915.417.30.563.4214.412.4357.41.246.20%273015.416.90.563.5217.712.9256.41.246.20%283115.416.50.573.5221.113.4155.41.246.20%
