EFFECT OF OPERATING LOADS ON CHANGES IN STRESS-STRAIN STATE OF TRANSPORT TUNNEL LINING
M. O. Lebedev
JSC Research,Design and Survey Institute Lenmetrogiprotrans, St. Petersburg, Russia
Keywords: Transport tunnel, vibrodynamic loads, stress-strain state, long-term researches, lining
Abstract
Based on the results of long-term researches in construction and subsequent operation of a railway tunnel using the automated monitoring system, the formation pattern of the stress-strain state of permanent lining made from cast reinforced concrete was obtained. It is found that vibrodynamic loads from transport to the tunnel foundation affect the exclusion of temporary unclosed support from the work with surrounding rock mass .
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