Návrh razícího cyklu při ražení dopravních tunelů

Abstract

This bachelor thesis is dealing with modern technology of excavation for traffic tunnels. Introduction is mentioning the history of traffic tunnels and excavation methods used in our country. Im dealing with the machines used in modern technologies of excavation, which are divided into three groups: a machine for drilling of boreholes, rock removal an continuous excavation. The practical part is focusing on the excavation of traffic tunnel performed in a cycles using blasting and the time needed for individual operations of excavation. The paper is evaluating the time demands with regard to the method of excavation of rock. There are three different ways of excavatig of rock compared including continuous excavation.