Geotechnical Aspects of Security for Long-operated Underground Collectors in Conditions of Weak Soils and Increasing Technogenic Influences

Abstract

Intensive development of megalopolises calls the need for sustainable functioning of facilities of the underground urban infrastructure. The special protection against technogenic influence is required for long operated tunnel sewage collectors related to the structures of high level of responsibility.This article, based on extensive materials of 30 years of experience in studying the work of the tunnel collectors in conditions of weak soils and intense external static and dynamic influences, describes new methods of diagnosing their technical condition, classification features of defects of the tunnel construction, and methods of determining the residual life of their bearing capacity, as well as the results of modeling the collaboration “tunnel – geomassiv” system work at various static and dynamic loads and comparison with experimental data on experimental objects.