Abstract
In focus is improvement of hole-making technology by vibro hammer pushing with batch-wise removal of soil core while a pipe is driven in soil under impact loading. The important advantage of the technology is the concurrent pipe driving and soil core removal. The minimal air pressure required to separate a core and transport it along the pipe is determined. The frequency of soil core separation and transport during vibro-hammer driving of pipes in soil has been tested in underground construction of utilities. The tests prove the possibility to cut-down time of trenchless construction of underground passages and to raise the level of mechanization of the operations.
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Original Russian Text © B.B. Danilov, A.S. Kondratenko, B.N. Smolyanitsky, A.S. Smolentsev, 2017, published in Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, 2017, No. 3, pp. 57–64.
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Danilov, B.B., Kondratenko, A.S., Smolyanitsky, B.N. et al. Improvement of Pipe Pushing Method. J Min Sci 53, 478–483 (2017). https://doi.org/10.1134/S1062739117032391
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DOI: https://doi.org/10.1134/S1062739117032391