This diploma thesis is aimed at verifying the properties of joints of waterproofing membranes generaly used in underground constructions and also deals with the possible addition of a swelling profile as a barrier to permeating water through the defect in the waterproofing system. The most commonly used materials for waterproofing membranes are polymers. The work is focused on verifying the properties of automatic and manual welding joints of polyvinylchloride membrane. In actual practice, there is a pressure test being used for automatic weldings, and for manual weldings there are tests with a tear-off needle and a vacuum bell. In the laboratory, it is also possible to verify the joints using a peeling test and determining the shear strength of the joint using a testing device. In case of damaged waterproofing system and soaking of pressurized water, it is possible to use a swellable strip as a barrier for the water leaking from one injection compartment to another. At the end of the thesis there is a comparison of the waterproofing system without the swelling profile and the system including its application. The swelling profile has shown very good properties with regard to the infiltration of the flowing water into its structure, and so the amount of water that could be applied to the sample with the swelling profile was much higher than in the case of the generaly used waterproofing system.

В работе проанализированы виды защиты подземной части гражданских зданий от воздействия воды, установлены основные недостатки проектных решений и построечные дефекты, которые приводят к снижению надежности гидроизоляции рабочих швов монолитных железобетонных конструкций подземной части гражданских зданий, разработаны новые конструктивно-технологические решения по устройству гидроизоляции рабочих швов монолитных конструкций подземной части гражданских зданий, которые позволяют устранить выявленные недостатки проектных решений и построечные дефекты. / The paper analyzes the types of protection for the underground part of civil buildings against water damage; it identifies the main disadvantages of design solutions and structural defects, which lead to decreased reliability of waterproofing in working seams in monolithic reinforced concrete structures in the underground section of civil buildings. New structural and technological solutions for waterproofing working seams have been developed in monolith structures of underground civil buildings, eliminating the identified shortcomings in design solutions and defects in construction.