| Confined aquifer as wave-guide and its responses to geo-acoustic waves |
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| 作者姓名： | 简文彬 陈葆仁 卢华复 |
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| 作者单位： | WEN B IN JIAN 1) B AO R EN CHEN 2) H UA FU LU 2) 1) Department of Environmental and Resource Engineering，Fuzhou University，Fuzhou 350002，China 2) Department of Earth Sciences，Nanjing University，Nanjing 210093，China |
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| 摘 要： | ＣｏｎｆｉｎｅｄａｑｕｉｆｅｒａｓｗａｖｅｇｕｉｄｅａｎｄｉｔｓｒｅｓｐｏｎｓｅｓｔｏｇｅｏａｃｏｕｓｔｉｃｗａｖｅｓＷＥＮＢＩＮＪＩＡＮ１）（简文彬）ＢＡＯＲＥＮＣＨＥＮ２）（陈葆仁）ＨＵＡＦＵＬＵ２）（卢华复）１）Ｄｅｐａｒｔｍｅｎｔ...
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| 收稿时间： | 12 February 1997 |
| 修稿时间： | 19 April 1997 |
Confined aquifer as wave-guide and its responses to geo-acoustic waves |
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| Wen-Bin Jian, Bao-Ren Chen and Hua-Fu Lu.Confined aquifer as wave-guide and its responses to geo-acoustic waves[J].Acta Seismologica Sinica(English Edition),1997,10(3):387-395. |
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| Authors: | Wen-Bin Jian Bao-Ren Chen and Hua-Fu Lu |
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| Affiliation: | (1) Department of Environmental and Resource Engineering, Fuzhou University, 350002 Fuzhou, China;(2) Department of Earth Sciences, Nanjing University, 210093 Nanjing, China |
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| Abstract: | On the basis of the hydro geological model of a confined aquifer, the propagation mechanism of geo acoustic waves along the confined aquifer outlined as a plate wave guide is proposed. The harmonic frequency equation for geo acoustic propagation along confined aquifer as waveguide is derived from Biot theory. The basic frequency of the confined aquifer with a deep well for geo acoustic observation, located at Juxian county, Shandong province, China, is 35.0 Hz. By Wigner distribution of geo acoustic signals observed at Juxian geo acoustic well, the frequencies of geo acoustics are basically the integral multiple of the basic frequency. The results show that the responses of the confined aquifer to geo acoustic waves are characterized by frequency selection and frequency dependence. Only the waves whose frequency f is the integral multiple of basic frequency can propagate as guide waves in the aquifer, that is , the aquifer responds to the waves. |
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| Keywords: | confined aquifer wave guide porous media geo acoustics response |
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