STUDY OF ROCKBURST POTENTIAL IN LABORATORY SCALE WITH BIAXIAL TESTING
The Mining World is always faced with problems regarding the strength of rocks related to aspects of work safety. Excavation of tunnels on rock masses causes changes in stress conditions in the original rock mass. This causes displacement in the affected area. As a result of degradation of roc...
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| Format: | Theses |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/37217 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The Mining World is always faced with problems regarding the strength of rocks related to aspects
of work safety. Excavation of tunnels on rock masses causes changes in stress conditions in the
original rock mass. This causes displacement in the affected area. As a result of degradation of
rock mass can cause a decrease in stability of the rock mass. Determining the right planning will
increase the stability of tunnel excavation.
Changes in depth from underground mining activities will cause changes in tension around the
tunnel. This change in voltage will cause the release of energy in the rock mass, the release of this
energy can trigger rockburst around the opening hole. The rock burst phenomenon can be
observed by carrying out an energy approach that takes place through laboratory testing by
conducting UCS testing in both elastic strain energy before failure and plastic strain energy after
failure, and by biaxial testing which represents the voltage variations experienced by tunnels that
represent the conditions in the field. and also performed numerical modeling by using Finite
Element Method to predict rockburst occurrence by knowing the stress distribution and strain
around the tunnel. |
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