During the restoration of buildings in the construction industry, mechanized waste removal from work areas and construction sites is often neglected. This poses a safety risk to both people and the environment due to high levels of dust in the air. Dozens of new buildings appear in modern megacities every year. This trend has its pitfalls. In particular, the increasing number of construction sites makes the problem of construction waste removal particularly pressing. Currently, two methods are primarily used to remove construction waste from construction sites: throwing waste out of windows and lowering waste down stairs or scaffolding. The advantage of the first option is the quick solution. However, throwing waste out of windows raises environmental and safety concerns. The second method is considered safer, but it requires significant physical effort. Therefore, a construction waste chute is currently the most effective solution to this problem.
Keywords: technosphere safety, safety management, construction waste, environmental pollution, monitoring
This article analyzes the main causes of fatal injuries in the construction industry of the Russian Federation and a number of other foreign countries, including falls from heights, electric shock, injuries associated with the use of construction machinery and mechanisms, as well as exposure to harmful substances. In conclusion, the article highlights the importance of joint efforts by employers, employees and regulators to create a safer and healthier work environment in the construction industry. The implementation of the preventive measures described in the article can significantly reduce the risk of accidents and improve the well-being of employees.
Keywords: construction industry, industrial injuries, accidents, causes of injuries, working conditions, occupational risks, working at height, occupational safety, environmental factors, workplace organization, training
The article discusses proposals for improving the use of discharge-pulse technology in the construction of boron-injection piles and camouflage widenings of bored piles with diameters of more than 300 mm. The application of voltages on the electrode system of a pulse current generator from 10 to 50 kV and an electric capacity of about 300 UF is considered. It has been found that in the case of using a relatively low voltage on the electrodes and an increase in the electrical capacity of the capacitor bank, the duration of the shock wave pressure on the ground increases several times. This contributes to a more intensive penetration of the liquid hardening material into the intergranular space of the near-well soil massif. It is proposed to use solutions using slag-alkali binders as a hardening material in the formation of boron-injection piles. Such solutions have greater fluidity compared to cement solutions and, when hardened, form a stone with greater strength and density. The article presents data from experimental studies confirming the increased strength (R = 130 MPa) and frost resistance of a solution prepared on slag-alkali binders, as well as data on determining their corrosion resistance to various aggressive media contained in groundwater. The possibility of stable breakdown of the interelectrode gap in aqueous solutions of slag-alkali media of various consistencies has been established, optimal energy parameters of the discharge have been determined for maximum effect of fixing the soils of the foundations.
Keywords: foundations, drilling piles, discharge-pulse technology, slag-alkali binders