Ever increasing population of large cities, density of transportation, and need for storage capacity have led, inevitably, to an increased use of underground facilities. Tunnels in urban environment are often located at small depths underneath densely populated areas, in a soil or soft rock, and their construction may affect existing structures at the surface. Therefore, a reliable prediction and control of ground surface settlements are important tasks when designing an urban tunnel (in

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... lar two closely spaced tunnels). This paper presents the analysis of ground settlements induced by a construction of twin tunnels and is based mainly on the work of Divall (2013) [4] .