Open AccessEXPERIMENTAL STUDY OF IMPACT OF PERCUSSIVE PULSE FORM ON SINKING PROCESS OF HOLLOW ROD ELEMENTS INTO SOILS
Author(s) -
Alexander Smolentsev,
Alexander Primichkin
Publication year - 2019
Publication title -
interèkspo geo-sibirʹ
Language(s) - English
Resource type - Journals
ISSN - 2618-981X
DOI - 10.33764/2618-981x-2019-2-5-32-39
Subject(s) - dimensionless quantity , percussion , core (optical fiber) , process (computing) , pulse (music) , work (physics) , engineering , mechanics , structural engineering , geotechnical engineering , materials science , mechanical engineering , acoustics , computer science , composite material , voltage , physics , electrical engineering , operating system
The work has experimental nature and it is aimed to development of vibro-percussion method of pipe-cover sinking during trenchless constructions of underground utilities. The maid idea of the research is the determination of regularities of filling inner tube hollow by soil at different forms of percussive pulse. Theoretical dependences of impact of percussion energy structure (form of percussion pulse) on efficiency of hollow rod element advance in the solid at different stages of insertion.Dimensionless parameter – filling coefficient is used for quantitative evaluation of filling rate by soil. Influence of pipe diameter on incrementation of length of soil core-sample for different percussive machines with the same percussive energy is shown. Stand and method of field test operation at various soil condition and interpretation of obtained data and its comparison with previous results obtained by the authors of the work and foreign researchers are represented.