A new study by the National University of Science and Technology MISiS has identified the key factors contributing to the disintegration of underground structures, like metros.The findings, published in the 'IOP conference series: Materials Science and Engineering' journal, would help cut metro construction and maintenance costs, as well as develop more durable lining for the planned underground facilities.Defects of underground facilities' load-bearing structures can account for 25 to 100 per cent of construction cost.The quality of their construction, service life and capital expenses depend on the type of lining and specific methods used for its installation, Professor Yelena Kulikova stated."The discovery of a mechanism influencing the formation of defects inside the internal lining makes it possible to chart measures for preventing their formation and to reduce underground structures' maintenance and construction costs," Kulikova told RIA Novosti.Findings reveal that water ...
