Research of technology for creating external waterproofing by injection of underground structure

Authors

DOI:

https://doi.org/10.32347/2410-2547.2026.116.109-119

Keywords:

waterproofing, underground structures, injection, polyurethane material, technology research, reconstruction, restoration, renovation

Abstract

Given the security situation in Ukraine, some underground structures and premises are used as simple shelters to protect the population from explosions and shrapnel. Certain requirements are imposed on the maintenance of such structures, namely: the structure must be protected from the effects of ground, surface and technical water by means of waterproofing. If the waterproofing is damaged or missing, the structures lose their operational properties and collapse. In addition, high humidity has a negative impact on the people inside. There are three common methods for repairing or installing waterproofing: excavating the structure and applying waterproofing from the outside, installing waterproofing from the inside, or installing external waterproofing using the injection method. To ensure sustainable development with the aim of reducing the impact on the environment and human health, the third method of waterproofing is the most acceptable. Given the wide choice of materials and their properties, it is advisable to study the effectiveness of the technology of waterproofing by injecting material outside the structure (externally). To this end, a series of experimental laboratory studies were carried out, which revealed the influence of soil moisture on the material's ability to increase in volume, spread and adhere to the structure. The waterproofing properties of the material were also tested. Based on the results obtained, practical recommendations were formulated for the use of improved technology for external waterproofing of underground structures. The optimal level of soil moisture for waterproofing was established. Further research directions were outlined for the installation of external horizontal waterproofing of reinforced concrete structures.

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2026-05-28

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