TY - JOUR
T1 - Numerical study on maximum rebound ratio in blasting wave propagation along radian direction normal to joints
AU - Lei, Wei Dong
AU - Teng, Jun
AU - Hefny, A.
AU - Zhao, Jian
AU - Guan, Jiong
N1 - Funding Information:
Received date: 2006−04−26; Accepted date: 2006−05−27 Foundation item: Projects(50278057) supported by the National Natural Science Foundation of China; project(2002CB412703) supported by Major State Basic Research Development Program of China Corresponding author: LEI Wei-dong, PhD; Tel: +86-755-26033506; E-mail: wdlei@hitsz.edu.cn
PY - 2006/12
Y1 - 2006/12
N2 - In the process of 2-D compressional wave propagation in a rock mass with multiple parallel joints along the radian direction normal to the joints, the maximum possible wave amplitude corresponding to the points between the two adjacent joints in the joint set is controlled by superposition of the multiple transmitted and the reflected waves, measured by the maximum rebound ratio. Parametric studies on the maximum rebound ratio along the radian direction normal to the joints were performed in universal distinct element code. The results show that the maximum rebound ratio is influenced by three factors, i.e., the normalized normal stiffness of joints, the ratio of joint spacing to wavelength and the joint from which the wave rebounds. The relationship between the maximum rebound ratio and the influence factors is generalized into five charts. Those charts can be used as the prediction model for estimating the maximum rebound ratio.
AB - In the process of 2-D compressional wave propagation in a rock mass with multiple parallel joints along the radian direction normal to the joints, the maximum possible wave amplitude corresponding to the points between the two adjacent joints in the joint set is controlled by superposition of the multiple transmitted and the reflected waves, measured by the maximum rebound ratio. Parametric studies on the maximum rebound ratio along the radian direction normal to the joints were performed in universal distinct element code. The results show that the maximum rebound ratio is influenced by three factors, i.e., the normalized normal stiffness of joints, the ratio of joint spacing to wavelength and the joint from which the wave rebounds. The relationship between the maximum rebound ratio and the influence factors is generalized into five charts. Those charts can be used as the prediction model for estimating the maximum rebound ratio.
KW - 2-D compressional wave
KW - Maximum rebound ratio
KW - Stiffness of joint
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U2 - 10.1007/s11771-006-0025-5
DO - 10.1007/s11771-006-0025-5
M3 - Article
AN - SCOPUS:33847257932
SN - 2095-2899
VL - 13
SP - 743
EP - 748
JO - Journal of Central South University
JF - Journal of Central South University
IS - 6
ER -