Ground movement of shallow buried ellipse cavity in a layered half-space impacted by SH wave

2018 2nd International Workshop on Renewable Energy and Development

能源学;经济学

Zhao, Yuanbo^1 ; Qi, Hui^1

College of Aerospace and Civil Engineering, Harbin Engineering University, Heilongjiang

150001, China^1

关键词: Amplification coefficient;    Boundary problems;    Conformal mapping method;    Ground movement;    Ground surfaces;    Incident waves;    Layered half spaces;    Shallow buried;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/153/6/062063/pdf
DOI  :  10.1088/1755-1315/153/6/062063

来源: IOP

【 摘 要 】

Based on the great arc assumption and the conformal mapping method, the ground surface displacement of shallow buried ellipse hole in a soft layered half-space impacted by SH wave is researched. The great arc assumption is used to simulate the straight boundary and the conformal mapping method is used to deal with the elliptical boundary problems. According to the numerical example, the ground movement amplification coefficient W∗ is smaller when the layer is harder than the half space and the incident wave number is larger. When the thickness of the layer is fixed, if the layer is softer, the W∗ is falling off with the down of the ellipse; if the half space if softer, the W∗ is smallest when the ellipse is in the middle of the layer.