The article deals with the issues of injuries and accidents in the operation of hoisting machinery in Russia. The paper provides the statistics on accidents and fatal injuries on hoisting devices,
as well as data on the accident rate of hoisting machines (HM). In the process of data analysis, interpolation algorithms embedded in the mathematical software are used. As a result of computer simulation of the prediction process, time intervals are determined, which give more accurate results of the prediction in relation to the dynamics of operation of autocranes with the
expired service life and the coefficient of fatal injuries per 1000 cranes. In addition, the analysis of perspective prediction methods for further scientific work is given. 

Introduction. There have been some improvements in the area of occupational safety and health at Russian enterprises. However, the main challenges in this area need to be addressed urgently. Numerous cases of industrial injuries and occupational diseases are recorded. The existing systems of production organization do not always meet the requirements of the legislation to safety. The Federal Labour Inspectorate, Prosecutor's office and Trade Union organizations are constantly monitoring the concealment or misrepresentation of information about industrial accidents.

Materials and Methods. The statistics on occupational injuries is analyzed in terms of system analysis and synthesis, as well as correlation analysis. The tools of mathematical statistics and logic are used.

Research Result. The level of industrial injuries and occupational diseases gradually decreases at the enterprises with harmful and (or) dangerous working conditions. The problem of the reliability of the source data on injuries becomes more acute in this case. Management, owners, and sometimes affected employees are not interested in spreading accurate information about injuries associated with the performance of official duties. The situation is made worse by the lack of funding: first, companies do not have enough funds for labor protection measures; secondly, the management is trying to avoid fines. This is especially true for small businesses. Their turnover is lower, and, therefore, the shortage of funds that could be directed to labor protection is higher. In addition, small companies do not fill in Statistical Form No. 7 "Injuries". In addition, only selective monitoring of the state of occupational safety is applied to such organizations.

Discussion and Conclusions. The most often unfavorable from the point of safety situation is supported by the following factors: lack of funding; incorrect work schedule; participation of unskilled personnel in complex and dangerous production operations; operation of outdated or non-preventive equipment.

Taking into account the received data the organizational and economic mechanism can be created, which allows excluding corruptions of the reporting 

The study of the workplace of instrumentation technician in LLC "Oil-Telecom" allowed us to identify the main harmful production factor. This is noise, that spreads from the oil pumping equipment and constantly acts on the worker. It
is established, that in this production the equivalent sound level is 86 dBA, when the normal level is not more than 80 dBA. Workers are exposed to noise for 8 hours per shift with two
technological breaks of 15 minutes in the first and second halves of the working day. The problem of noise reduction can be solved by placing single sound absorbers on the ceiling in the
working room. Thus, the aim of the study is to calculate their required number. As a result of the performed scientific work, it was found that the installation of 60 devices will reduce the
sound level to an acceptable level, and, consequently, the class of working conditions. In addition, the fatigue of workers will decrease, their health will improve, and productivity will increase. 

A linguistic model of accidents is developed on the basis of the analysis of the system "object — factors — protection – worker". The paper determines the correspondence between the described accidents and the dangers presented in "Model Regulations on Occupational Health and Safety Management System (OHSAS)". The authors have built an accurate logical model of accidents given statistically defined probability
of occurrence of their preconditions. The paper describes susceptibility parameters of a person and excess criteria that characterize apical outcomes. By conversion of a logical model of accidents in its possibilistic form the estimation was made and the values of the possible measure of apical outcomes implementation were obtained

In order to create a matrix of standard logical and parametric models of accidents and emergencies described in accordance with the "Model Regulations on Occupational Health and Safety Management System (OHSAS)", the paper analyzes multivariable technical system "furnace – casting – worker" of melting and casting site of the foundry. In the result, taking into account
probabilities of preconditions occurrence found by the statistical method, the authors have built logical models of accidents on the basis of which has been made the assessment of possibility measures of implementation of apical outcomes (AO) at the level of the degree of approximation. For AO given hygienic standards, a table was drawn up of intervals of influence and
susceptibility parameters values in normal and
emergency system conditions. The possibility form of function of AO implementation showing the degree of deviation of the harmful (dangerous) factor parameter from the standard values
was built.

The article is devoted to the ultrasonic method of investigation of reinforced concrete structures after a fire. The method is based on the property of an ultrasonic wave to change the speed of passage, depending on the degree of damage to the
reinforced concrete structure as a result of a fire. The method is widely used in the practice of fire and technical expertise to establish a fire in the room. The aim of the work is to derive a formula relating the transmission coefficient of an ultrasonic wave to the temperature of the concrete heating. The resulting formula should transmit the temperature of the fire impact to the reinforced concrete structure in the event of a fire as accurately as possible. In the Microsoft Excel software system, graphs
were constructed to study the linear and polynomial dependence of the ultrasonic wave transmission coefficient and the temperature of concrete heating. The equations obtained as a result of the study were tabulated and compared for the purpose of determining the equation with a minimum measurement error.
As a result of the study, an equation was obtained that establishes the relationship between the transmission coefficient of the ultrasonic wave and the temperature of the concrete heating. Verification of the equation obtained showed that the
maximum error in the results is 20 ° C at a concrete heating temperature of 400 ° C, which is very insignificant. On the basis of the obtained equation, an algorithm was constructed for calculating the temperature of heating concrete and its
main strength characteristics at a known rate of passage of an ultrasonic wave. Creating a program based on the algorithm described in this article will improve the ultrasonic flaw detector and expand its functions. The improved ultrasonic flaw detector will be useful both to the staff of forensic institutions of the federal firefighting service "Test Fire Laboratory", in
determining the fire site, and to organizations carrying out an assessment of the residual loadbearing capacity of reinforced concrete structures after a fire.

The paper provides the analysis of the state of fish-passing facilities (FPF) on Konstantinovsky, Nikolaevsky and Kochetovsky waterworks facility. The need of construction of a new fish-passing facility on Kochetovsky waterworks facility is especially noted. The authors have offered a new design of a fish-passing facility in the form of the tray connecting the upstream and the downstream. The tray is established in one of the bays of a weir dam. The research results on the influence of the depth at
the beginning of a tray at various gradients at speeds on tray length are presented. The research results are presented in the form of dependences showing functionality of the offered design and the possibility of its use for the pass of fish throu

The article considers the topical problem of extinguishing landscape fires and ensuring fire safety in the suburban area of the city of Rostovon-Don. The analysis of fire parameters is conducted. They have the greatest negative impact on the environment and health of people living in nearby cities. The paper provides the calculation of a possible fire area, which can be in normal weather conditions by the time of the arrival
of the first fire-fighting units.

Currently, the environmental situation of urban environment can have an impact on human health and social comfort of population. This paper is devoted to the search for ways to ensure the environmental safety of cities. To improve the ecological situation, the authors propose the way to form the ecological framework of the city. The principles of formation of environmentally safe situation are considered. A logical-probabilistic model is proposed for assessing the environmental safety of cities.