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饱和土中孔列对平面快纵波的隔离效应

, PP. 25-30

Keywords: 饱和土,孔列,波函数,隔离效果

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Abstract:

在Biot饱和土波动理论的基础上,用单排孔列作为屏障,对全空间饱和土中入射平面快纵波进行了隔离分析。采用波函数展开法,将入射波和散射波的势函数展开成Fourier-Bessel函数的无穷级数的形式,利用一组可以求解多散射问题的圆柱坐标系统和界面处位移连续的条件,得到问题的理论解。对影响隔离效果的孔间距和饱和土的渗透性等参数进行了分析,结果表明,单相弹性土体中孔列隔离效果要比饱和土体差,饱和土的渗透性对隔离效果有较明显的影响,饱和土渗透系数越小,孔列屏障后一定距离处的隔离效果越好。

References

[1]  Richart F E, Hall J R, Woods RD. Vibration of soils and foundations[M]. Englewood Cliffs, N J:Prentice-Hall, 1970.
[2]  Woods RD. Screening of surface waves in soils [J]. Journal of the Soil Mechanics and Foundations Division, ASCE, 1968, 94 (4):951-79.
[3]  Liao S, Sangrey DA. Use of piles as isolation barriers [J]. Journal of Geotechnical Engineering Division, ASCE, 1978, 104(9):1139-52.
[4]  Avi ls J, Snchez-Sesma F J. Piles as barriers for elastic waves [J]. Journal of geotechnical engineering, 1983, 109(9):1133-46.
[5]  Kani Y, Hayakawa K. Smiulation analysis about effects of a PCw all-pile barrier on reducing ground vibration [C]. Proceedings of the International Offshore and Polar Engineering Conference, Honolulu, HI, United States 2003:1224-1229.
[6]  胡昌斌, 黄晓明. 成层黏弹性土中桩土耦合纵向振动时域响应研究 [J]. 地震工程与工程振动, 2006, 26 (4):205-211.
[7]  徐平, 夏唐代, 吴明. 刚性空心管桩屏障对P波和SH波的隔离效果研究 [J]. 工程力学, 2008, 25(5):210-217.
[8]  Gao GY, Li Z Y, Qiu C, et al. Three-dmiensional analys is of rows of piles as passive barriers for ground vibration isolation [J]. Soil Dynamics and Earthquake Engineering, 2006, 26(11):1015-1027.
[9]  Tsai PH, Feng Z Y, Jen TL. Three-dimensiona lanalysis of the screening effectiveness of hollow pile barriers for foundation-induced vertical vibration [J]. Computers and Geotechnics, 2008, 35 (3):489-499.
[10]  Biot MA. Theory of propagation of elastic waves in a fluid-saturated porous solid [J]. Journal of the Acoustical Society of America 1956, 28(2):168-78.
[11]  Stoll RD, Kan TK. Reflection of acoustic waves at a water-sedmient interface [J]. Journal of the Acoustical Society of America, 1981, 70(1):149-56.

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