CALCULATION OF PROBABILITY OF FAILURE FORM SLIDE FAILURE AND WEDGE FAILURE ON ROCK SLOPE
The problem of slope stability is an important issue because it concerns human <br /> <br /> safety issues, equipment and building and production. To analyze the stability of <br /> <br /> slope can be known through the mechanical properties such as cohesion, friction <br...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/27769 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The problem of slope stability is an important issue because it concerns human <br />
<br />
safety issues, equipment and building and production. To analyze the stability of <br />
<br />
slope can be known through the mechanical properties such as cohesion, friction <br />
<br />
angle and unit weight of the rock. <br />
<br />
A larger FOS does not necessarily represent a safer slope, as the magnitude of the <br />
<br />
implicit uncertainties is not captured by the FOS value. A slope with a FOS of 3 is <br />
<br />
not twice as stable as one with a FOS of 1.5. hence the probability of failure is <br />
<br />
formed from some mechanical parameters. <br />
<br />
Based on analytical calculations using estimation method. The probability of <br />
<br />
failure (POF) slide 11 location southwest slope Pb9s4 open pit Grasberg is <br />
<br />
14.06% and the probability of failure wedge 36 location southwest slope Pb9s4 <br />
<br />
open pit is 32.5%. Based on the Stacey table (2009) POF slide14.06% is still <br />
<br />
acceptable. qualitative levels of risk and of acceptability from level L to level E <br />
<br />
(no injuries untill fatality) |
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