A prediction model for the transmission ratio in 2-D compressional wave propagation in jointed rock masses

A. M. Hefny, W. D. Lei, J. Teng, J. Zhao

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

Abstract

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.

Original languageEnglish
Title of host publicationSoil and Rock Behavior and Modeling - Proceedings of the GeoShanghai Conference
PublisherAmerican Society of Civil Engineers
Pages143-148
Number of pages6
Edition150
ISBN (Print)0784408629, 9780784408629
DOIs
Publication statusPublished - 18 Dec 2006
Externally publishedYes
EventSoil and Rock Behavior and Modeling - Shanghai, China
Duration: 6 Jun 20068 Jun 2006

Publication series

NameGeotechnical Special Publication
Number150
ISSN (Print)0895-0563

Conference

ConferenceSoil and Rock Behavior and Modeling
Country/TerritoryChina
CityShanghai
Period6/06/068/06/06

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