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Numerical study on rock fragmentation by TBM disc cutter
| Content Provider | Semantic Scholar |
|---|---|
| Author | Cho, Jung-Woo Yu, Sanghwa Jeon, Seokwon Chang, Soo-Ho |
| Copyright Year | 2008 |
| Abstract | A series of numerical experiments were carried out to simulate the rock cutting behavior by TBM disc cutter in a given took condition. AUTODYN-3D, a commercial program capable of simulating three-dimensional dynamic failure, was utilized to carry out the numerical tests over four different disc cutter spacing conditions. After modelling three-dimensional geometries of disc cutter and rock specimen, the linear cutting tests by a disc cutter were simulated for eight different types of rocks. The numerical result, that is the optimum cutter spacing for isotropic rocks had the good agreements with those from linear cutting test. However, for relatively anisotropic or jointed rocks, the specific energy obtained from the numerical tests was almost two-times bigger than the real linear cutting results. Therefore, to simulate cutting procedures for anisotropic rocks realistically, further studies would be necessary. |
| Starting Page | 139 |
| Ending Page | 152 |
| Page Count | 14 |
| File Format | PDF HTM / HTML |
| Volume Number | 10 |
| Alternate Webpage(s) | http://journal.zipot.com/file/1FKrYbTb4Aj9UZcpB7lsr-/*/N0550100204.pdf?_=2&authcred=anVzZXJfY3Jvc3NkYjpKb3VybmFsKTk4 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
