Finding Forces Required to Change Air Hammer Path in Soil |
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Authors: | B B Danilov B N Smolyanitsky A I Chanyshev D O Cheshchin |
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Affiliation: | 1.Chinakal Institute of Mining, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia;2.Novosibirsk State University of Economics and Management,Novosibirsk,Russia;3.Siberian State Transport University,Novosibirsk,Russia |
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Abstract: | The authors solve the problem on forces required to change drilling path of air hammers in soil. Soil mass is assumed a rigid–plastic medium with the Mohr–Coulomb yield, and the air hammer deviator is considered as a nondeformable body. The problem is solved in two stages: introduction of the deviator in soil and travel of the air hammer in soil with the rear deviated at a certain angle. The loads applied to the rear, the forces and the moment required to changing the path of an air hammer in soil are calculated. |
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