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V. A. Maslak
V. A. Maslak
JSC «Lenmetrogiprotrans»
JSC «Lenmetrogiprotrans»

Articles

Geotechnology for development of solid mining fields
  • Date submitted
    2011-11-26
  • Date accepted
    2012-01-13
  • Date published
    2012-05-01

Settlement-free technologies in the construction of the Saint Petersburg subway

Article preview

Everywhere in Saint Petersburg the top strata are represented  by quaternary deposits, and  the ground water level is approximately 2,5 m down from the surface. Below the quaternary deposits, at depths of 40 to 60 m, are Cambrian (Proterozoic) clays. There are many ancient buildings of a historic and architectural value on the day surface that cannot tolerate day surface settlements. The construction of underground stations, and especially inclined escalator tunnels, causes surface settlements. Technologies of construction of escalator tunnels and station tunnels have been developed in Saint Petersburg to minimize such day surface settlements.

How to cite: Bezrodnyi K.P., Salan A.I., Maslak V.A., Markov V.A., Lebedev M.O. Settlement-free technologies in the construction of the Saint Petersburg subway // Journal of Mining Institute. 2012. Vol. 199. p. 190.
Topical issues in mining of ore and nonmetallic minerals
  • Date submitted
    2011-07-06
  • Date accepted
    2011-09-24
  • Date published
    2012-01-01

The designing of the constructions of the pillar underground station with applying of the low-settle building technology

Article preview

The intelligent technology of designing of the constructions of pillar  underground  station is adduced. Station is building with applying of low-settle technology, which takes into consideration main stages of the building process. The scheme of interaction of the system «support lining-soil massif» was accepted as basic scheme of calculations. The calculations of the stress-strain condition of constructions was performed with applying of finite-elements method.

How to cite: Protosenya A.G., Demenkov P.A., Karasev M.A., Belyakov N.A., Bezrodnyi K.P., Maslak V.A. The designing of the constructions of the pillar underground station with applying of the low-settle building technology // Journal of Mining Institute. 2012. Vol. 195. p. 124.
Drilling
  • Date submitted
    2008-10-29
  • Date accepted
    2008-12-11
  • Date published
    2009-04-01

Experience in providing the stability of tunnel face and roof during its drivage in proterozoic clays

Article preview

Methodology for assessment of state of advance support of face with fiberglass anchors and the working¢s roof – with tube anchors, is given. The results of in-situ experimental observations for efforts in anchors, displacements of excavation and growth of load on the advance supports in its roof are shown.

How to cite: Maslak V.A. Experience in providing the stability of tunnel face and roof during its drivage in proterozoic clays // Journal of Mining Institute. 2009. Vol. 183. p. 297.
Drilling
  • Date submitted
    2008-10-21
  • Date accepted
    2008-12-12
  • Date published
    2009-04-01

Assessment of stress-strain state of temporary support during constructhion of station tunnels of the metro

Article preview

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.

How to cite: Maslak V.A. Assessment of stress-strain state of temporary support during constructhion of station tunnels of the metro // Journal of Mining Institute. 2009. Vol. 183. p. 300.