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Vol 172
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Research article

Investigation of bio-aggressiveness of underground environment of St. Petersburg in relation to structural materials of transport tunnels and foundations

R. E. Dashko1
P. V. Kotyukov2
About authors
  • 1 — G.V. Plekhanov Saint Petersburg Mining Institute
  • 2 — G.V. Plekhanov Saint Petersburg Mining Institute
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The main natural and anthropogenic factors determining the vitality of diverse microbiota in the underground space (US) of St. Petersburg are analyzed. The data on characteristic microbial flora of buried bogs, contributing to the growth of microorganisms in the underlying soils are given. The processes influencing the formation of reductive-oxidizing and acid-alkaline conditions and viability of various physiological groups of microorganisms in RS are considered. Peculiarities of destruction of foundation brickwork, reinforced concrete and cast-iron lining of some transportation tunnels are considered. A comparative assessment of the influence of water extracts selected from fractured building materials and new formations on the chemical composition of tunnel linings is given. The metabolism of various bacteria and microfungi leading to the destruction of building materials is characterized.

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  1. Биоповреждения и биокоррозия в строительстве: Материалы международной научно-технической конференции // Мордовский университет. Саранск, 2004. 256 с.
  2. Дашко Р.Э. Микробиота в геологической среде: ее роль и последствия / Сергеевские чтения. Вып.2: Материалы годичной сессии Научного совета РАН по проблемам геоэкологии, инженерной геологии и гидрогеологии (23-24 марта 2000). М.: ГЕОС, 2000. С.72-78.
  3. Региональные временные строительные нормы. Защита строительных конструкций, зданий и сооружений от агрессивных химических и биологических воздействий окружающей среды. РВСН 20-01-2006. СПб: Стройиздат, 2006. 50 с.

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