Применение комплекса методов неразрушающего контроля для диагностирования фундаментов насосных агрегатов

Abstract

Technical re-equipment of oil pumping stations often involves changing the power and weight of pumping equipment. In this regard, it is important to assess whether the replacement of a pumping unit foundation is feasible and, namely, whether the further use of existing facilities is possible, since the costs of replacing the foundations often exceed the costs of adapting existing structures to new equipment. The authors have developed a technology for examining pumping unit foundations to determine the possibility of increasing the load while replacing the equipment. Previously, no such survey has been conducted. The article presents the composition of the recommended diagnostic work, while describing the specifics and limitations of the methods used with some survey results given regarding more than 100 pump foundations. The average age of the samples was 44.9 years. As a result of geodetic measurements, the tilt and settlement values of the foundations were actually found to be free of changes over recent decades and complied with modern regulatory requirements, while the results of engineering and geological surveys have confirmed no serious risks of spatial displacements occurred. It was determined that during diagnostics it is necessary to control the following parameters: the existence of foundation waterproofing, concrete protective layer status, concrete strength and reinforced metal hardness, and whether the location of the reinforcement bars complies with the requirements of the design and/or regulatory and technical documentation. It is also necessary to make sure that there are no unacceptable corrosion damages to metal structures, with fastening and anchor bolt sizes being in compliance with the design and/or regulatory and technical documentation. The data on detected defects of various types are given taking into account the operating period and conditions of the foundations.