Paper Title:
Numerical Simulation of Rock Stability under Dynamic Blasting Load
  Abstract

In order to study the effect of blast shake on the stability of tunnel during mining process, finite element analysis software for rock and soil engineering is used to simulate the effect of blasting shake. In the simulation, a short-time dynamic load is applied to the rock in the blasting zone. Dynamic stress field in the rock mass and distortion in the surface of the tunnel are calculated with the finite-element method. Equivalent displacement method is utilized to determine the amount of sudden applied load, the actuation duration and the range of action. Consequently, the maximum critical explosive content at the critical shake speed of rock mass can be defined.

  Info
Periodical
Key Engineering Materials (Volumes 353-358)
Edited by
Yu Zhou, Shan-Tung Tu and Xishan Xie
Pages
1041-1044
DOI
10.4028/www.scientific.net/KEM.353-358.1041
Citation
F. K. Xiao, G. Y. Sun, L. H. Tian, "Numerical Simulation of Rock Stability under Dynamic Blasting Load", Key Engineering Materials, Vols. 353-358, pp. 1041-1044, 2007
Online since
September 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Zhi Jie Sun
Chapter 3: Tunnel, Subway and Underground Facilities
Abstract:The 3D finite element simulation are adopted to study the surrounding rock deformation regularity of main tunnel during the horizontal adit...
1514
Authors: Liang Qin Tang, Dong Yan Liu, Yong Jian Li
Chapter 6: Hydropower
Abstract:The diversion power system intake excavation of Jinchuan Hydropower Station forms a slope of about 160m height; its stability is one of the...
1071
Authors: Guang Yong Wang, Jun Chao Liu
Chapter 4: Innovation in Bridge and Underground Engineering
Abstract:In order to avoid the effect of driving blasting on the adjacent roadway in 858 mines, numerical analysis of seismic intention was carried...
783