CONSTRUCTION OF GROUND REACTION CURVE OF CIRCULAR TUNNEL ON VARYING ROCK MASS QUALITY USING TWO DIMENSIONAL FINITE ELEMENT METHOD
Ground reaction curve is the ultimate approach in an excavation project neither it a civil tunnel nor mining tunnel. In this study author gives recommendations for ground reaction curve for various rockmass qualities using a numerical approach with finite element method two dimensions. In this case...
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| Format: | Final Project |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/51478 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Ground reaction curve is the ultimate approach in an excavation project neither it a civil tunnel nor mining tunnel. In this study author gives recommendations for ground reaction curve for various rockmass qualities using a numerical approach with finite element method two dimensions.
In this case the tunnel being modeled is at depth 400 meters with unite weight 0.027 MN/m3 so that is provide a hydrostatic stress of 10.8 MPa which is the internal support pressure itself at zero meter advance.
The modelling result states that each quality of rockmass has a plastic zone, which is a condition where the initial condition cannot return after a displacement occurs. The resulting displacement varies for each quality of rockmass. The worse the quality of rockmass, the greater the displacement formed. |
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