deformations

Use of a complex of gas-ground surveying and geophysical research for solving the problem of defining the territory of mud volcanism within Rozvadiv area in Lviv oblast

The purpose of the research was to substantiate the scientific basis behind the formation of a mud volcano within a specific section of the Precarpathian depression. It also aims to examine the existence of a near-fault shallow gas deposit in the Rozvadiv area and its possible impact on gas-soil surveying and electrometry fields. The relevance of the work is determined by the need to solve the ecological problem of environmental pollution with hydrocarbon gases, as well as to establish and forecast the degree of emissions of the gas-mud mixture.

TEST RESULTS OF REINFORCED CONCRETE CROSS-RIBBED MODEL OF SPAN STRUCTURE OF THE BRIDGE AND THEIR ANALYSIS

Presentation of samples of basic experimental data from research of spatial work of large-scale (scale 1: 4) reinforced concrete model of cross-ribbed span structure of the bridge and separate beams similar in structure to model beams, as well as methodological features and results of their analysis. During the tests, the model and separate (reference) beams were loaded with concentrated force, alternately at the intersections of the longitudinal and transverse ribs of the model. Deflections in the same nodes and support reactions of longitudinal beams were measured.

Display of mechanical stresses' distribution in mining areas in the intensity dynamics of the Earth's natural pulsed electromagnetic field

The purpose of the research is to substantiate the theoretical prerequisites for the interpretation of the geophysical method of the Earth's natural pulsed electromagnetic field (ENPEMF). The justification will be performed by quantifying the stress state of the rock massif, modeling of the obtained analytical dependencies for disturbed massifs. The basis for the interpretation is the coordination of the obtained distributions of intensity with the intensity of the electromagnetic field.

EXPERIMENTAL TESTING METHODOLOGY OF STRESS-STRAIN STATE OF THE REINFORCED CONCRETE PIPE WITH STRENGTHENING

Reinforced concrete pipes are exposed to environmental influences during the entire period of their operation.  As a result, defects and damage appear and reduce durability and bearing capacity. In this regard, there is a need to repair and strengthen them. In order to assess the effectiveness of strengthening reinforced concrete pipes, it is necessary to get data about deformations that appeared as a result of the loads on the reinforced concrete pipe.

METHODS FOR DETERMINATION OF DEFORMATIONS WITH THE USE OF DIGITAL IMAGE CORRELATION TECHNOLOGIES

In order to obtain reliable information about the stress-strain state of the structure, subjected to loading, it is necessary to determine deformations` distribution. In some cases, it is almost impossible to assess stress-strain state with the traditional approaches. However, the DIC methods provide reliable information about the fields of displacement and deformation almost without limitations. Such approaches are rather effective for determination of the stress-strain state on smooth surfaces and in zones with stress concentrators.

Analysis of thermal-elastic geomechanical processes on the base of complex deformational monitoring data

The thesis applies for the original geodynamical investigations of the Transcarpathians territory. New laser-digital techniques of tension and weather-temperature observations on the base of author’s implementations were used. Such techniques  allow to observe and study sub-low geological processes and movements before, during and after earthquakes, create a of tension and weather-temperature data base, make complex analyses and processing of geophysical information.

Geodynamics of Tereblja-Riksky technogenic range

On the basis of results of the complex analysis of the given geodetic measurements and geological studying of territory of Tereblja-Riksky derivational hydroelectric power station the geodynamic model of interaction of engineering constructions and the geological environment is created. Recommendations for carrying out of monitoring of geodynamic processes are offered.

Stress-strain state of Rosynsk block of the shield for upstream of the Ros’ river (Fursy – Borschahivka)

The purpose of this work is to fulfill tectonophysical study of the Earth's crust of the area of the river Ros upstream, followed by the petrological and isotope-geochemical study of rocks for the subsequent construction of geodynamic model of the western part of the Ukrainian shield (USH). Until recently, this part of the USH was the least studied using geological and geophysical methods. This article presents new results of tectonophysical and geological study of the area upper crust, performed in 2015.

Оцінка деформативності підсилених залізобетонних балкових елементів

In the article problem of expedience strengthening reinforce-concrete constructions is considered with reference on experience the use different methods strengthening, which are presented in literary sources. The analysis researches and publications is conducted from the calculation deformations concrete, armature, size bendings the increased reinforce-concrete beam elements. Dependence influence relative level previous loading is taken into account on deformation concrete and armature, curvature and bendings reinforce-concrete standards.

Dynamics of postseismic tectonic deformations

Aim. The purpose of researches – continuous monitoring observations of geophysical fields, determined by the need of fundamental and applied geophysics and geology for reliable and detailed regional data on the behavior in time and space components of geophysical fields generic modern dynamics of the earth's crust, especially in seismically active regions. Such data are also needed to evaluate the durability and reliability of critical and dangerous geological and geotechnical hazards.