Edge excavation performance of a rock material

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概要

• 論文の詳細を見る

• This paper aims to investigate experimentally the edge excavation performance of a disc cutter bit on a free edge part of rock material. The tangential, lateral and normal forces acting on the disc cutter bit having three tip angles and the amount of debris in several cutting spaces and penetration depths per round for four kinds of rock samples were measured. As a result, it was observed that the specific cutting energy, i.e. the ratio of the excavation work of the disc cutter bit of a tip angle of jt/4 rad to the amount of debris of an andesite, showed a minimum value 0.036 kNcm/cm^3 at the ratio of cutting space and penetration depth per round of 52.7. The method of the edge excavation for the rock material could achieve the great efficiency of excavation of about 24 times that of plane excavation.

• 愛媛大学の論文

著者

• Muro Tatsuro

  Department Of Civil And Environmental Engineering Ehime University

• KOHNO Koichi

  Department of Civil and Environmental Engineering, Ehime University

• Kohno Koichi

  Department Of Civil And Environmental Engineering Ehime University

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• Edge excavation performance of a rock material
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