TY - GEN
T1 - A prediction model for the transmission ratio in 2-D compressional wave propagation in jointed rock masses
AU - Hefny, A. M.
AU - Lei, W. D.
AU - Teng, J.
AU - Zhao, J.
PY - 2006/12/18
Y1 - 2006/12/18
N2 - It aims to numerically study the transmission ratio in the process of 2-D compressional wave propagation through multiple parallel joints in rock masses along the special radian direction normal to the joints, using the Universal Distinct Element Code (UDEC). The effects of three possible factors influencing the transmission ratio have been investigated. These influencing factors are the ratio of joint spacing to wavelength, the number of the joints, and the normalized normal stiffness of the joints. For any given level of the normalized normal stiffness of the joints and any given number of joints, the variation of the transmission ratio with the ratio of joint spacing to wavelength was generalized into a characteristic curve determined by two critical points. The relationships between the two critical points and the influencing factors were obtained as a model for estimating the transmission ratio along the special radian direction normal to the joints.
AB - It aims to numerically study the transmission ratio in the process of 2-D compressional wave propagation through multiple parallel joints in rock masses along the special radian direction normal to the joints, using the Universal Distinct Element Code (UDEC). The effects of three possible factors influencing the transmission ratio have been investigated. These influencing factors are the ratio of joint spacing to wavelength, the number of the joints, and the normalized normal stiffness of the joints. For any given level of the normalized normal stiffness of the joints and any given number of joints, the variation of the transmission ratio with the ratio of joint spacing to wavelength was generalized into a characteristic curve determined by two critical points. The relationships between the two critical points and the influencing factors were obtained as a model for estimating the transmission ratio along the special radian direction normal to the joints.
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U2 - 10.1061/40862(194)18
DO - 10.1061/40862(194)18
M3 - Conference contribution
AN - SCOPUS:33845447658
SN - 0784408629
SN - 9780784408629
T3 - Geotechnical Special Publication
SP - 143
EP - 148
BT - Soil and Rock Behavior and Modeling - Proceedings of the GeoShanghai Conference
T2 - Soil and Rock Behavior and Modeling
Y2 - 6 June 2006 through 8 June 2006
ER -