Vpliv faktorja nosilnosti Ns na izbiro podpornih ukrepov pri gradnji predora

Repenšek, Blaž (author), Jovičić, Vojkan (mentor)

Koeficient nosilnosti Ns, ki predstavlja odnos med višino nadkritja predora in trdnostjo hribine, uporabljamo pri določanju ocene stabilnosti izkopavanja predora. Diplomsko delo je analiza vpliva parametra Ns na izbiro podpornih ukrepov in ustrezne tehnološke sekvence za primarno podpiranje predora. Pri tem bo uporabljena Kirscheva analitična rešitev za stanje napetosti okrog odprtine v napetostnem prostoru ter na podlagi le te določena interakcija hribine in podporja v predoru.

• Language: Slovenian
• Keywords: geomehanika, predor, faktor nosilnosti Ns, podporni ukrep, faktor razbremenitve
• Work type: Bachelor thesis/paper
• Organization: NTF - Faculty of Natural Sciences and Engineering
• Year: 2017
• PID: 20.500.12556/RUL-96352
• COBISS.SI-ID: 1697375
• Publication date in RUL: 29.09.2017

Secondary language

• Language: English
• Title: The influence of capacity factor Ns on the choice of supporting meassures in tunneling

Abstract

Capacity factor Ns represents the relation between the height of overburden of the tunnel and the strength of rock or soil. It is used to evaluate the stability of the tunnel during the excavation. The main focus is in this diploma is the analysis of effects on the capacity factor Ns and the choice of supporting measures for tunnel construction. Furthermore, it enables us to estimate the technological sequence of the primary support. Kirsch’s analytical solution for the state of stress around the tunnel cavity was used to solve the interaction between the rock and the supporting elements during tunnel construction.

• Keywords: geomechanics, tunnel, capacity factor Ns, supporting measures, de-confinement ratio