Study results of a stress-strain state of a pylon station construction from monolithic reinforced concrete in the engineering and geological conditions of St. Petersburg

St. Petersburg State University of Railway Transport of Emperor Alexander I, 9 Moskovsky pr., 190031, St. Petersburg, Russia

^* Corresponding author: olen585@yandex.ru

Abstract

In recent years, structures made from monolithic reinforced concrete have been increasingly developed in the field of underground construction. This has been made possible by the development of modern tunneling technologies such as NATM and ADECO&RS, which have proven themselves abroad. Being low-sedimentation methods of underground structures construction, they have found wide application not only in mountain transport tunneling but also in construction in an urban environment, where precipitation and negative impact on the surrounding infrastructure has a decisive role in the choice of one or another technology. Foreign experience of construction in the same physical and mechanical characteristics of soils gives reason to assert the possibility of using new technologies in our country. However, this task requires a comprehensive approach to its solution. This article presents an experimental and theoretical substantiation of a pylon station lining made from monolithic reinforced concrete in the engineering and geological conditions of St. Petersburg on the example of the planned St. Petersburg Metro station “Chernigovskaya” of the “Krasnoselsko-Kalininskaya” line being built from “Obvodniy Kanal-2” station to “Yugo-Zapadnaya” station.