Vibration isolation analysis for concrete-water-concrete composite vibration isolation barriers in saturated soil

PDF(1791 KB)

Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (1) : 251-257.

XU Changjie1,2, DING Haibin1,TONG Lihong1,WANG Ning1,GUO Shenggen1

Author information +

History +

Abstract

A dynamic model for a concrete-water-concrete composite vibration isolation barrier in saturated soil was established.The analytical solution to the delay coefficient of displacement amplitude of P wave passing through the barrier was obtained by introducing the potential function and using continuous boundary conditions on interfaces of saturated soil-concrete and concrete-water.The results showed that the vibration isolation effect of the barrier is related to incident wave’s incident angle, the barrier’s isolation effect is the minimum at incident angle of 14°, and then the barrier’s isolation effect gets better with increase in incident angle; at vertical incidence, the barrier’s isolation effect decreases at first and then increases with increase in concrete layer thickness and water layer width, it decreases with increase in concrete elastic modulus and Poisson’s ratio; when incident angle is 30°, the barrier’s isolation effect increases at first and then decreases with increase in concrete layer thickness and water layer width, when concrete layer thickness and water layer width are 1 time and 0.3 time of incident wave length, respectively, displacement amplitude decay basically is 0, the barrier’s vibration isolation effect increases with increase in concrete elastic modulus and Poisson’s ratio, and concrete elastic modulus affects the barrier’s vibration isolation effect more obviously than Poisson’s ratio does; the barrier’s isolation effect gets better with increase in incident wave frequency.

Key words

Saturated soil / Concrete / Water layer / Isolation barrier

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

XU Changjie1,2, DING Haibin1,TONG Lihong1,WANG Ning1,GUO Shenggen1. Vibration isolation analysis for concrete-water-concrete composite vibration isolation barriers in saturated soil[J]. Journal of Vibration and Shock, 2019, 38(1): 251-257

References

[1] Stoll R D, Kan T . Reflection of acoustic waves at a water sediment interface[J]. Journal of the Acoustical Society of America, 1981, 69(1):149-156.
[2] Wang Jinting，ZHANG Chuhan，JIN Feng. Analytical solutions for dynamic pressures of coupling fluid-solid-porous medium due to P wave incidence[J].Earthquake Engineering and Engineering Vibration，2004，3(2)：263-271.
[3] Wang J T, Zhang C H, Jin F. Analytical solutions for dynamic pressures of coupling fluid–porous medium–solid due to SV wave incidence[J]. International Journal for Numerical & Analytical Methods in Geomechanics, 2010, 33(12):1467-1484.
[4] JUN YANG. Influence of water saturation on horizontal and vertical motion at porous soil interface induced by incident P wave[J].Soil Dynamics and Earthquake Engineering，2000，19(81)：575-581.
[5] 陈炜昀, 夏唐代, 王宁, 等. 不同饱和度土层分界面上剪切波的反射与透射[J]. 岩土力学, 2013, 34(3):894-900.
CHEN Wei-yun, XIA Tang-dai, WANG Ning, et al. Reflection and transmission of shear wave at interdace between soil layers with different saturation degrees[J]. Rock and Soil Mechanics, 2013, 34(3): 894-900.
[6] 徐平, 夏唐代. 弹性波在准饱和土和弹性土界面的反射与透射[J]. 力学与实践, 2006, 28(6):58-63.
XU Ping, XIA Tang-dai. Reflection and transmission of elastic wave at the interface of nearly saturated soil and elastic soil[J]. Mechanics in Engineering, 2006, 28(6):58-63.
[7] 叶陈江, 史焱永, 蔡袁强. S波由饱和土入射于弹性土时在界面上的反射与透射[J]. 振动与冲击, 2005, 24(2):41-45.
YE Chen-jiang, SHI Yan-yong, CAN Yuan-qiang. The reflection and transmission of S wave on the interface when the saturated soil is in the elastic soil[J]. Journal of vibration and shock, 2005, 24(2):41-45.
[8] 俞缙, 钱七虎, 宋博学, 等. 不同应力波穿过多条非线性变形节理时的透射特性[J]. 工程力学, 2012, 29(4):1-6.
YU Jin, QIAN Qi-hu, SONG Bo-xue, et al. Transmission of various stress waves across multi-fracture with nonlinear deformation behavior[J]. Engineering mechanics, 2012, 29(4):1-6.
[9] WOODS R D. Screening of surface waves in soils[J]. Journal of the Soil Mechanics and Foundations Division, ASCE, 1968, 94(4): 951–979.
[10] HAUPT W A. Model tests on screening of surface waves[C]//Proceedings of the 10th International Conference in Soil Mechanics and Foundation Engineering, Stockholm, 1981: 215–222.
[11] 朱兵见, 熊浩. 二维饱和地基中空沟主动隔振分析[J]. 岩土力学, 2013, 34(2):462-467.
ZHU Bin-jian, XIONG Hao. Analysis of active vibration isolation by open trench in two-dimensional saturated ground[J]. Rock and Soil Mechanics, 2013, 34(2):462-467.
[12] 时刚, 郭院成, 高广运. 饱和地基中二维填充沟远场被动隔振研究[J]. 岩土工程学报, 2011(1):104-111.
SHI Gang, GUO Yuan-cheng, GAO Guang-yun. Two-dimensional analysis of in-filled trenches as passive as passive barriers in saturated soil[J]. Chinese Journal of Geotechnical Engineering, 2011(1):104-111.
[13] 袁万. 基于2.5维有限元饱和土地基中隔振沟屏障性能研究[D]. 浙江大学, 2013.
YUAN Wan. Study on the performance of 2.5 dimensional finite element method for saturated soil foundation[D]. Zhejiang University, 2013.
[14] 徐平, 邓亚虹, 吴明. 饱和土体中多排桩屏障对压缩快波的隔离[J]. 工程力学, 2014, 31(5):120-127.
XU Ping, DENG Ya-hong, WU Ming. Isolation of fast compressive waves by barriers composed of several rows of piles in saturated soils[J]. Engineering Mechanics, 2014, 31(5):120-127.
[15] Pao Y H, Mow C C, Achenbach J D. Diffraction of elastic waves and dynamic stress concentrations[M]. New York: Crane and Russak. 1973.
[16] BIOT M A. Mechanics of Deformation and Acoustic Propagation in Porous Media[J]. Journal of Applied Physics, 1962, 33(4):1482-1498.
[17] Achenbach J D.弹性固体中波的传播[M].徐植信，洪锦如译.上海：同济大学出版社，1992.
Achenbach J D. Wave propagation in elastic solids[M]. Translated by XU Zhixin and HONG Jinru. Shanghai：Tongji University Press，1992.
[18] 宫全美. 轨道交通线路动力学[M]. 人民交通出版社股份有限公司, 2015.
GONG Quan-Mei. Dynamics of Rail Transit Engineering[M]. China communications Press Co.,Ltd, 2015.