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Influence of the Underground Cavity and Inclusion’s Cross-section-shape on Scattering and Diffraction of Plane SH-waves

Author: LinYongXing
Tutor: LiangJianWen
School: Tianjin University
Course: Disaster Prevention and Reduction Engineering and Protective Engineering
Keywords: Plane SH waves Wave function expansion method Least Squares Semi-analytical solution
CLC: U451
Type: Master's thesis
Year: 2007
Downloads: 21
Quote: 0
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Abstract


Tunnel engineering is extremely common type of venue. In the tunnel excavation , tunnel cross-section shape is often not circular, but irregularly shaped . The rule has been built on the ground shaking cavern boundary issues affecting a lot of research work has been carried out , while in construction in the irregular boundaries cavern has not been studied much. Firstly, as a engineering background , has been arbitrarily shaped tunnel and jammed area scattering of plane SH waves semi-analytical solution . Then gives 30 groups in a circular to mean random data , and as an example to the irregular border areas cavern and jammed some preliminary research . First irregular boundaries discrete , then each discrete points on the basis of the boundary conditions to establish a balance equation, an overdetermined equations. Solving this equation with the principle of least squares group to arrive at the ground near the upper cavern displacement amplitude , in order to observe and summarize irregular cavern jammed area ground motion on the ground situation .

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CLC: > Transportation > Road transport > Tunnel project > Tunnel structure theory
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