Rocas Practica
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una cimentacion cuadrada sobre arenisca cuyo: datos: 20 KN/m^3 F.S. = 3 Df = 2m Q = 700 KN Cf1 Cf2 Nc 25 1.25 0.85 30.354331701313 27 1.25 0.85 35.456245321589 30 1.25 0.85 45 35 1.25 0.85 68.086859204556 qa = 1423457622 + 6.78*B ### qa = 1662766842 + 8.45*B ### qa = 2110455000 + 11.90*B ### qa = 3193581543 + 21.78*B ### UNA PRUEBA DE PLACA DE 12"X12" REALIZADA SOBRE qc = 19.52 peso espec 2 B = 12.00´´ qf = 19.52 C Df qf peso especifico 0 0 19.52 2 0 0 19.52 2 SE TIENE UNA CIMENTACION APOYADA EN ROCA BASALT B = 1.7 m L = 3.4 m S = 1.7 m qa = qc/Fs H = 5.1 m S/B = =5∗ 〖 tan(45+∅/ 2) 〗 ^4 =(tan(45+∅/2) ) ∅ = qc = j*c*Ncr
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Transcript of Rocas Practica
1RA PREGUNTA
una cimentacion cuadrada sobre arenisca cuyo:FOUNDATION SHAPECf1Cf2CLASE DE ROCATIPO DE ROCARESISTENCIA A LA COMPRESION SIMPLE (Mpa)ANGULO DE FRICCION EN GRADOSdatos:STRIP (L/B) > 61120KN/m^3RECTANGULARROCAS SEDIMENTARIASCALIZA50-20033-40F.S. =3L/B = 21.120.9MARGA5.0-15Df =2mL/B = 51.050.95ARENISCA50-15025-35Q =700KNCUADRADA1.250.85ESQUISTO50-10027CIRCULAR1.20.7ROCAS METAMORFICASGNEIS80-25023-33MARMOL50-18025-35CUARCITA200-40048ROCAS IGNEASBASALTO30-42031-38GABRO150-200GRANITO100-20029-35ANDESITA40-320Cf1Cf2NcNqNrqrC251.250.8530.354331701314.958085349715.95808534977537.5271.250.8535.456245321618.883570278319.88357027837537.5301.250.854527287537.5351.250.8568.086859204650.250448803851.25044880387537.5
qa =1423457621.91301+ 6.78= 2100000.00/B^2b = 0.03B = 0.04qa =1662766842.26063+ 8.45= 2100000.00/B^2b = 0.03B = 0.04qa =2110455000+ 11.90= 2100000.00/B^2b = 0.02B = 0.03qa =3193581543.16572+ 21.78= 2100000.00/B^2b = 0.02B = 0.03
UNA PRUEBA DE PLACA DE 12"X12" REALIZADA SOBRE UNA ROCA LA PRESION PORTANTE ALCANZAqc =19.52peso espec2B =12.00qf =19.52
CDfqfpeso especificoBASE (B)angulo de friccion
0019.5220.304842.96089766780019.5220.440.6393825853
SE TIENE UNA CIMENTACION APOYADA EN ROCA BASALTICA CUYO:
B =1.7mL =3.4mS =1.7mqa = qc/FsH =5.1mS/B =qr =80kg/cm^2Fs =4
BLSHqr (kg/cm^2)FsC (kg(cm^2)NcrJqrqa1.73.41.75.180440100.75300751.73.41.75.190445100.75337.584.3751.73.41.75.1100450100.7537593.751.73.41.75.1120460100.75450112.51.73.41.75.1140470100.75525131.25
hallar el asentamientoQ (Tn)B (m)L (m)E (kg/cm^2)uArea (m^2)Radio ('R)Asentamientou =1/34002.281500001/317.6236.690810.0050073139B =2.2m5002.281500001/317.6236.690810.0062591424L =8m5502.281500001/317.6236.690810.0068850566E =150000kg/cm^26002.281500001/317.6236.690810.0075109708Q =400Tn6502.281500001/317.6236.690810.0081368851
Hallar las dimenciones de la zapataQ (Tn)asentamiento (cm)E (kg/cm^2)uRadio ('R)Area (m^2)L (m)B (m)u =1/23200.0304860001/2656.1679790026135.2632911.6302711.6302746122cuadradasE =6000kg/cm^23300.0304860001/2676.6732283465143.8493411.9937211.9937206939cuadradasS =0.012inch3400.0304860001/2697.1784776903152.6995712.7249612rectangularQ =320Tn3500.0304860001/2717.6837270341161.8139916.1814010rectangular3600.0304860001/2738.188976378171.1926017.1192610rectangular
qc = j*c*Ncr
Hoja2
