Magazine of Civil Engineering, No.4(72), 2017
A.V. Smolenkova, V.S. Korovkin, N.S. Orlova, K.G. Ragulin, A.D. Kuzina
article gives a practical implementation of the engineering method for
calculation of different retaining walls types. The main provision of
the method is to provide the construction calculation model as a
combination of construction elements with the respective conditions of
their fixing. The calculation model of shielded retaining wall (covered
type of sheet pile wharf) is proposed in the form of substandard
rack-mount frame where resilient ground attachment is accepted instead
of rack lower anchorage.
A.V. Mishakova, A.V. Vakhrushkina, D.R. Anishchenko, Y.A. Tatarkina
This article presents one of
the best ways to control the building process, which is named Program
Evaluation and Review Technique (PERT). Although there were mentioned
other variations of the time control methods, such as Graphical
Evaluation and Review Technique (GERT) and method of the statistic
modeling (Monte Carlo), the advantages of PERT and disadvantages of
them are presented.
V.I. Loganina, I.S. Pyshkina, G.V. Martyashin
was proposed to use synthesized calcium hydrosilicates in lime
finishing dry mixes as a modifying supplement. The effect of substances
containing amorphous silica, which are used in the synthesis, on the
activity of the modifying supplement was established. The effect of the
synthesis mode of supplement on the structure formation of lime
compositions was illustrated.
D.S. Tarasova, M.R. Petritchenko
typical building constructions absorb the temperature wave caused
temperature fluctuations of external air. It means this building
construction has a thermal stability. Therefore, there is a reserve for
warmth accumulation which can be used for decreasing of thermal losses.
The developed mathematical model of temperature distribution in an
enclosure structure allows estimating the cooling velocity of assorted
designs of enclosure structures.
D.V. Rachkov, Ya.A. Pronozin, V.M. Chikishev
calculation of setting is the main criterion while designing shallow
foundations as the complete setting. Methods of defining deformation in
soil body show the calculation value of the final settlement which is
several times different from the real. It is stated that the
deformability of the ground coat is defined to a great extent by the
degree of the horizontal intensity caused by natural pressure and by
exterior additional loading.
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A.V. Cherkashin, K.A. Pykhtin, Y.E. Begich, P.A. Sherstobitova, T.S. Koltsova
article covers use of nanocarbon modified cement (nCMC) that was made
with use of chemical vapor deposition method. The tests were performed
with traditional destructive method as well as with the use of special
G.P. Vasilyev, V.F. Gornov, P.I. Konstantinov, M.V. Kolesova, I.A. Korneva
article deals with results of the analysis of years-long measurements
of the ground temperatures, for example: Russia, Moscow. Data are given
on variations of the ground temperatures in the course of a year, at a
10-days interval, in two plots of land – one under exposed
surface, the other under natural cover.
T.A. Nizina, A.S. Balykov, V.V. Volodin, D.I. Korovkin
The purpose of the experimental study was to research the efficiency of
dispersive reinforcement and modifying of compositions of cement fiber
fine-grained concretes with active mineral and chemical additives, and
to optimize the developed compositions according to the strength
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