mekbat
DESCRIPTION
mekanika batuanTRANSCRIPT
RIAN DWI ANGGARA PUTRA
111.120.051
JAWAB:
Unit weight
= 18 kN/m3Friction angel
= 30oCohession
= 20oWeight of mass slide= (1/2)(18 kN/m3) (5 meter)2 {[tan(90o-48o)]-[tan(90o-80o)]}
= 162.9 kN/m
Lenght of slide
= H/sin a = 5/sin 48o
= 6,73Horizontal spase= 2 meter1st tensil permit= 18,3 kN2nd tensil permit= 21,8 kN1st shear permit= 0,133 kN2nd shear permit= 0,133 kNT = = 20,05 kN/mV = = 0,133 kN/m
Fos = = 1,92