Averkin D.I. Impact of technologies for the rib-side track erection on the track rigidity

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Parent Category: Geo-Technical Mechanics, 2015

Category: Geo-Technical Mechanics, 2015, Issue 124

 

Geoteh. meh. 2015, 124, 188-196

IMPACT OF TECHNOLOGIES FOR THE RIB-SIDE TRACK ERECTION ON THE TRACK RIGIDITY

¹Averkin D.I.

¹«Minova Ukraine» LTD

UDC 622.268.13: 622.268.7

Abstract. An objective of this research was to study how ambient temperature and technol-ogies of the rib-side concrete monolith tracks erection impact on the track rigidity. To this end, a method of laboratory simulating modeling was used. It was found that intensity of the concrete strength increase depends on temperature factors and factors associated with the technologies of the rib-side concrete monolith and packed tracks erection. It has been proved that during the initial pe-riod of time (1-4 days from the moment of tempering a dry concrete mix with water) ultimate con-crete strength of the monolith track is 20-30% higher than of the packed track, while later the con-crete strength of the packed track is 20-30% higher than the same of the monolith track. Taking into account the established dependencies will be resulted in more accurate calculations of the wooden cutting-off supports which preserve the concrete from early destruction before it gains sufficient strength.

Keywords: supporting of preparatory roadways, methods of concrete rib-side track building, mechanism of the track deformation.

 

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About the author

Averkin Dmitry Ivanovich, Master of Sciences, Deputy Director of «Minova Ukraine» LTD, Donetsk, Ukraine

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