A three-dimensional static numerical model of a complex underground structure in high squeezing groundMarolt Čebašek, Tina (Avtor) Likar, Jakob (Avtor) , Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru (Lastnik avtorskih pravic) high squeezing groundnumerical modelunderground structuresdeformationsyielding support elementThe present study assesses high squeezing ground confirmed by empirical and semi-empirical theories. High squeezing ground is often present in underground constructions at great depths, but it is hardly ever researched separately from light and fair squeezing ground. A three-dimensional, static numerical model is developed for a complex underground structure consisting of a shaft, a silo, and a mine roadway at great depth, which is certainly in high squeezing ground. Furthermore, a solution for the entire structure based on shotcrete with incorporated yielding elements is provided. The yielding elements, in general, absorb the strain energy by compressing at a relatively constant stress, but without rebounding. A three-dimensional, static numerical model of a support system with incorporated yielding elements is established in order to demonstrate that the presented forces are under control. Therefore, a failure of the lining is avoided because the stresses in the shotcrete lining are below its load-bearing capacity. It can be concluded that yielding elements incorporated in the shotcrete lining play an important role in the support solution in high squeezing ground.20152018-06-14 12:27:52Znanstveno delo70827ISSN: 1854-0171UDK: 624.131OceCobissID: 215987712COBISS_ID: 1543519ISSN pri članku: 1854-0171NUK URN: URN:SI:UM:DK:5XUGQPYAslFakulteta za gradbeništvo, prometno inženirstvo in arhitekturo Univerze v Mariboru