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<p>Bits (Drilling and boring)<br />Cutting machines<br />Rock excavation<br />Rock mechanics -- Research<br />Water-rock interaction</p>
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Full-Text Articles in Geological Engineering
Saturation Effects On Mechanical Excavatability Of Roubidoux Sandstone Under Selected Rock Cutting Tools, Muhammad Zubair Abu Bakar
Saturation Effects On Mechanical Excavatability Of Roubidoux Sandstone Under Selected Rock Cutting Tools, Muhammad Zubair Abu Bakar
Doctoral Dissertations
"This study investigated the differences in the cutting performance of two rock cutting tools in dry and saturated rock. For this purpose, a permeable quartzose sandstone was subjected to a series of full scale linear rock cutting tests, in both dry and saturated conditions, using a constant cross-section (CCS) disc cutter and a radial drag pick at a constant cutting speed.
In this rock, saturation with water reduced the forces acting on the disc cutter by 27-48% (significant at 90% confidence), but also reduced the chip yield by nearly as much. Even though the specific energy of fragmentation went down …