Abstract
Full-scale linear cutting test is one the most preferred and reliable methods for performance prediction of mechanical miners. Raise Boring Machines (RBMs) are one of these mechanical miners which are commonly used for drilling / excavation of shafts for different purposes in mining and tunneling projects. This study aims at investigating experimentally double spiral (scroll) cutting pattern in raise boring machine. Full-scale linear cutting tests are performed by using button (kerf) cutting tool. The tests are performed at line spacing of 25 mm and varying depths of cut per revolution by using two hard rocks (diabase and granodiorite) that were obtained from the Yusufeli Dam and HEPP project site. The average and maximum normal, rolling and side forces; specific energy; yield; and coarseness index are measured in each cut. The study indicates that optimum ratio of line spacing to depth of cut per revolution are obtained as 8.3 and 4.2 for diabase and granodiorite samples, respectively.
| Original language | English |
|---|---|
| Article number | 012128 |
| Journal | IOP Conference Series: Earth and Environmental Science |
| Volume | 833 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 6 Sept 2021 |
| Event | EUROCK 2021 Conference on Rock Mechanics and Rock Engineering from Theory to Practice - Turin, Virtual, Italy Duration: 20 Sept 2021 → 25 Sept 2021 |
Bibliographical note
Publisher Copyright:© Published under licence by IOP Publishing Ltd.
Funding
This study summarizes some of the results of PhD research work carried out by Aydin Shaterpour-Mamaghani. Scientific and Technological Research Council of Turkey (TUBITAK) is thanked for its support in Project MAG-217M729. The authors are grateful to the support of DSI (State Hydraulic Works), Joint-venture Limak-Cengiz-Kolin, and Sargin Construction and Machinery Industry Trade Inc.; this work would be impossible without their support.
| Funders | Funder number |
|---|---|
| Sargin Construction and Machinery Industry Trade Inc. |