This paper presents the issues of technical state of subsurface structures in operation and the erection click here of buildings under available development.It is stated that detailed monitoring of technical state of underground tunnels is essential, since the structure is unique and technologically complex.The aspects of geotechnical monitoring of underground tunnels are considered.The principles of geodesic monitoring of underground rings, tension increase in tube read more lining and pressure from the building under construction on the ground are described.Recommendations for underground tunnel monitoring are presented.