The main factors that affect and soil erosion in Ukraine and ways of erosion protection. The method of calculating the erosion protection of slopes using geosynthetic materials to protect the soil surface from erosion by water and wind blowing. The algorithm and examples of calculation using polyamide geomates Enkamat^® for erosion protection of slopes and slopes.

The calculation of the strength of the protective concrete clips pressurized pipe networks rain viaduct terminal "D" International airport "Borispol". The algorithm engineering calculation freely placed beams-clips on elastic foundation by the method of initial parameters using hyperbole-trigonometric functions. To determine the demanding accuracy and reliability of simulation results for different boundary conditions applied most efficient numerical method of finite elements. To do this, the results of engineering calculations determined parameters of the equivalent section beams-clips finite length and performed calculations with different schemes ITU load on algorithms that are taken in [1]. According to the results of calculations set out proposals for the design of reinforced concrete rectangular clips for free-flow of rain water pipes of different diameters.

The paper presents a method of hydraulic calculation of unsteady hydraulic processes in the block-type stormwater treatment system (SWTS) with a bypass pipe and without any flow control devices depending the stormwater runoff hydrograph and taking into account hydraulic dependencies between all adjacent elements of the system. The proposed method allows to determine the optimal  hydraulic diameter of the bypass pipe. For typical block-type SWTS with a nominal capacity of 30 l/s there are obtained dependencies of the volume control coefficient versus the diameter of bypass pipe and the dimensionless duration of rain.

The results of long-term measurements of surface temperature coatings runway airports. The essential differences between the surface temperature of the coating temperature, laid the basis for forecasting the timing of coatings and their processing chemicals and cleaning methods. Proven reliability of temperature measurements of metal surfaces such as RTD or RTDs SCI with appliances, a widely used in engineering practice.

Years of laboratory filtration coefficient determination experience of sandy soils by use of device ‘КФ-ООМ’, proves this apparatus to remain the best in his grade, and needs no other device to replace for any laboratory test. In addition, it needs to be mentioned, that the use of sandy ground and crushed stones at the base of road construction has rather greater negative influence on its durability and reliability, than protects the soil basis from the undesirable moistening.

Lack of systematic monitoring of rivers requires the designer bridges use other available modeling techniques to determine hydrographs calculated values of total washout. Determine the impact on the overall hydrograph shape erosion will draw on the best model schematic hydrograph and speed up the design process.

Investigated general trends in the behavior of the time series of average annual water flow of rivers to sufficiently large time intervals.

The mathematical modeling problems of open streams hydrodynamics are analyzed in the article. A two-dimensional model of branched river flows hydrodynamics is proposed by the authors in the article. The calculation method of the secondary flow transverse circulation in the branching area is researched based on the two-dimensional model of the fluid motion. It is suggested to use the k – ε model to close transfer equations of the two-dimensional model. The conclusion about the reasonability of using algebraic relations for the turbulent stresses is made.

The paper deals withmechanical, chemical, physical and biochemical methods of sewage treatment on the surface of highways.The methods are widely applied in Ukraine and abroad. The advantages and disadvantages of the methods of superficial drainpurification, interactionbetween sewage treatment facilities and environment, and natural landscape are analyzed. The activities which can ensure ecological safety and operational reliability of highways in the conditions of road of surface sewage are offered.

On the basis of two-phase soil model K.Tertsagi shown that the calculation of foundation piers that stand in the saturated soil water effects buoyancy (Archimedes force), acting on the foundation base of support should be taken into account only under certain conditions specified in the article.

Modeling of concrete culverts into the embankment using mathematical and numerical modeling. Established rational design of culvert (on a rigid or nonrigid basis) depending on the height of the embankment and the type of soil, suggested ways to improve the stress-strain state structures «embankment – culvert – base» for high embankment road.

It has been found in experimental studies, that storm runoff from bridges increase the concentration of suspended solids and petrochemicals in the river water in 2-6,4 times in the rain. The mechanical processing (filtering through natural materials) does not provide cleaning of the surface runoff of this composition to the regulatory requirements.