Two parametric functional dependents of time for construction of horizontal mining facilities in gneiss and schist

Abstract

This paper presents the analysis of the construction of horizontal mining facilities where 18 variants of mining facilities were developed. The aim of this research was to determine the required time for construction of all variants and then to reduce it to the time required for construction of 1 m` per facilities. Also the required time for construction of 1000 m' of the same facilities is calculated. Based on analysis, two parametric functional dependents of construction time are determined in relation of uniaxial compressive strength of rock mass and the size of the facilities` cross section.