Click for new scientific resources and news about Corona[COVID-19]

Paper Information

Title: 

EXCAVATION PROCESS DETERMINATION OF LARGE SECTION TUNNELS IN DRILLING & BLASTING METHOD

Type: PAPER
Author(s): MONJEZI M.*,SAYADI AHMAD REZA,ZIAEINEZHAD R.
 
 *TARBIAT MODARRES UNIVERSITY, FACULTY OF ENG
 
Name of Seminar: PROCEEDING OF IRANIAN MINING ENGINEERING CONFERENCE
Type of Seminar:  CONFERENCE
Sponsor:  IRANIAN SOCIETY OF MINING ENGINEERING
Date:  2005Volume 1
 
 
Abstract: 

Drilling and Blasting is one of the current and important methods for excavation of tunnels. Generally, excavation process in this method is selected from one of the three methods; Full Face, Topheading & Bench and Pilot Tunnel.
Several parameters such as condition of host rock mass and tunnel cross-section size affect selection of excavation proce3ss. For determination of quality of rock mass RMR index and Q system can be used.
In this paper, excavation process of several large section tunnels has been studied and analyzed and then relationship between three parameters; cross-section, geomechanical conditions and excavation process has been determined. Accordingly, a database from information of over one hundred tunnels has been prepared. For this purpose, firstly, the tunnels have been classified based on cross-section size and secondly, for each class according to quality of host rock mass, a method of excavation has been suggested. Finally, using the introduced method in this research, an excavation process has been selected for tunnel No.1 in third part of Kazeroun-Shiraz roadway as a case study.

 
Keyword(s): 
 
Yearly Visit 64   tarjomyar
 
Latest on Blog
Enter SID Blog