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Date submitted2009-07-27
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Date accepted2009-09-15
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Date published2010-04-22
Geomechanical problems in the forecast of stress-strain state of underground stations of the metro at a great depth
- Authors:
- P. A. Demenkov
- I. E. Dolgiy
- V. I. Ochkurov
Forecast of stress and strain state of deep underground metro stations is considered in this article. A complex approach to study of static work of the metro stations including the in situ testing at different stages of their construction and numerical modeling with finite element method is shown.
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Date submitted2009-07-17
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Date accepted2009-09-09
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Date published2010-04-22
Numerical modelling of the lining stress stateof column stations without lateral platforms
- Authors:
- D. N. Petrov
- P. A. Demenkov
- D. A. Potemkin
Geomechanical forecast of stress-strain state of deep underground subway station is considered. Static work of structures of subway station based on complex approach is shown, including in situ testing and numerical modelling (finite elements method) during different stages of construction.
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Date submitted2009-07-27
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Date accepted2009-09-26
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Date published2010-04-22
The intense-deformed condition of construction of underground station complex under influence of piles foundation
- Authors:
- D. A. Potemkin
- P. A. Demenkov
- V. N. Ochnev
The intense-deformed condition of one of station complexes of the Saint Petersburg underground testing mutual influence from a trading-entertaining complex located over it is considered.
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Date submitted2008-10-21
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Date accepted2008-12-12
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Date published2009-12-11
Assessment of stress-strain state of temporary support during constructhion of station tunnels of the metro
- Authors:
- V. A. Maslak
In-situ testing technique of temporary support is given. The values of stress and normal force in arch and sides of steel support are shown. Determination of vertical load magnitude is done. It was determined that vertical load on support decreases by 1,54 times, if lag of support installation from the face is16 m.