Geotechnical risk assessment during the construction of international crossing under the runways of Sheremetyevo airport

Abstract

The surrounding buildings,topographical,engineering-geological and hydrogeological conditions of the construction site area are factors of potential geotechnical risks and influence the occurrence of emergencies during the building of underground structures. It is irrefutable fact,that while the development of the underground space of cities due attention is not given to geotechnical risks,considering only issues related to economic damage. In addition,there is no comprehensive risk control methodology for the construction of complex multifunctional facilities. In order to prevent the risk of accidents,during the construction of the Inter-terminal transition under the runways of Sheremetyevo Airport in Moscow method of geotechnical risk control was developed,which proved to be an effective method in the prevention of accidents during construction. Recommendations were developed to reduce the level of risk at the considered facility,including verification calculations carried out by an independent organization in a certified geotechnical software package; geophysical surveys of runway foundation; filling voids before sinking under the runway; exploratory drilling and geophysical surveys before sinking hazardous areas.