Features of exploitation of engineering systems of buildings during martial law

Abstract

The destruction of engineering systems of buildings and structures, periodic peak loads in the mode of their work, which are formed during hostilities, significantly affect the stability of the operation of these systems. The need to perform repair and debugging work in the emergency mode is not always consistent with the current labor protection requirements, which were developed for the conditions of operation of engineering networks in peacetime. Given the existing and delayed impact of damage to the operation of engineering systems, it is necessary to take into account the existing conditions in the normative documents, which can be used in the future in major circumstances. Explosions near gas pipelines generate dynamic vibrations similar to pile driving during construction. In this case, the "Safety Rules for Gas Supply Systems" require inspection of welded joints along the entire length of the damage plus 20 m. Often, damage to a gas pipeline caused by an explosion leads to its displacement vertically and horizontally. Therefore, it becomes necessary to check the welded joints closest to the place of damage by a physical control method. If a defect is detected in the joints, it is necessary to check the next joint of the gas pipeline. In addition to through damage, there is a possibility of damage to only the insulating layer. Since it is physically impossible to check an underground gas pipeline, it is necessary to use an instrumental method to detect such damage. Not eliminated insulation damage will lead to intensive corrosion of the steel gas pipeline, and subsequently to the gas leakage. Therefore, it is necessary to conduct an extraordinary instrumental examination, on the basis of which areas that need additional isolation are determined. An inspection and additional sealing of engineering inputs and outputs of underground utilities should be carried out. The buildings should be monitored for the presence of micro-concentrations of carbon monoxide and control of pre-explosion concentrations of methane.