STUDY OF TOPPLING FAILURE MECHANISM ON OPEN PIT SLOPE MODEL WITH CENTRIFUGAL TEST
Mining is an activity to extract valuable minerals with economic value. Most of mining activities in Indonesia implemented open pit methods and stability of the stope in open pit methods is one thing that has to be monitored. Blasting activities, vibration from equipments, and earthquakes will g...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/31401 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Mining is an activity to extract valuable minerals with economic value. Most of
mining activities in Indonesia implemented open pit methods and stability of the
stope in open pit methods is one thing that has to be monitored. Blasting activities,
vibration from equipments, and earthquakes will greatly affect the stability of the
stope and the result will be slope failure. One type of slope failures is toppling
failure. One of a way to analyze slope stability is to do a physical modeling in the
laboratory. One of physical modeling used to represent the variables that occured
in the field is centrifugal test.
There are three physical models of slope that will be tested using centrifuge test:
overall slope model, open pit slope model, and open cast slope model. Every slope
model has angle of 56.3?, horizontal joint spacing fixed at 12 cm, and vertical joint
spacing fixed at 6 cm. Those models will be given centrifugal acceleration of 0g,
0.26g, 0.67g, and 1.5g for 15 seconds.
The result of the test shows the model of the slope affects the slope stability and the
volume of failures. The most stable of the three is open pit model with lowest
volume of failure, while the less stable is the open cast model with highest volume
of failure, and the overall slope model stability and volume of failure falls between
the two. |
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