Rock and Soil Mechanics ›› 2022, Vol. 43 ›› Issue (4): 1135-1146.doi: 10.16285/j.rsm.2021.1029

• Numerical Analysis • Previous Articles     Next Articles

Propagation characteristics of P1 wave passing through wave impeding block in unsaturated soil

SHU Jin-hui 1, MA Qiang1, 2, ZHOU Feng-xi3, LI Qiang4   

  1. 1. School of Civil Engineering, Qinghai University, Xining, Qinghai 810016, China; 2. Qinghai Provincial Key Laboratory of Energy-saving Building Materials and Engineering Safety, Qinghai University, Xining, Qinghai 810016, China; 3. School of Civil Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China; 4. Gansu New Development City Development Construction Operation Group Co., Ltd., Lanzhou, Gansu 730010, China
  • Received:2021-07-08 Revised:2021-08-23 Online:2022-04-15 Published:2022-04-18
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (52168053, 51978320), the Youth Foundation of Qinghai Province Science and Technology Department Project (2021-ZJ-943Q) and the Funds for Creative Research Groups of Gansu Province (20JR5RA478).

PDF (Chinese)

178

Abstract: Based on the theory of wave propagation in single-phase elastic medium and unsaturated porous medium and Snell's law, the propagation characteristics of P1 wave incidence on wave impeding block (WIB) from unsaturated soil are studied. The analytical solution of the amplitude ratio of reflected wave and transmitted wave of P1 wave passing through the wave impeding block in unsaturated soil is derived. The relation curves of amplitude ratios of reflected wave and transmitted wave with the shear modulus and density of the wave impeding block, angle of incident wave, frequency of incident wave, saturation and other parameters are analyzed, thus the influence laws of these parameters on the vibration isolation effect of the wave impeding block in unsaturated soil are obtained. The numerical results show that the shear modulus and density of the wave impeding block significant affect its vibration isolation effect, and the wave impeding block can achieve better vibration isolation performance when the shear modulus and density of the wave impeding block are within a certain range. The incident angle has a great influence on the vibration isolation performance of the wave impeding block, while the incident frequency has little influence on the vibration isolation performance.

Key words: unsaturated soil, wave impeding block, wave propagation, reflection amplitude ratio, transmission amplitude ratio

CLC Number: 

  • TU 452
[1] JIANG Wen-hao, WANG hao, LIAO Guang-zhi, CHEN Bin-hua, . Analytical solutions for one-dimensional transient seepage of water in the two-layered unsaturated soils under time-varying rainfall conditions [J]. Rock and Soil Mechanics, 2025, 46(9): 2721-2737.
[2] FANG Wei, WU Run-feng, ZHOU Chun-mei, . Rankine passive earth pressure of unsaturated soil using envelope shell model [J]. Rock and Soil Mechanics, 2025, 46(9): 2885-2893.
[3] ZHANG Zhen-guang, XU Jie, FAN Jia-shen, . Novel plastic solutions of spherical cavity expansion in unsaturated soils under undrained conditions [J]. Rock and Soil Mechanics, 2025, 46(7): 1988-1996.
[4] XU Ming, YUAN Bang-guo, CAI Yu, LIU Xian-shan, GAN Feng-fan, YUAN Dong-hao, . Analysis of stress concentration characteristics at rock joint ends under stress wave disturbance [J]. Rock and Soil Mechanics, 2025, 46(6): 1687-1699.
[5] SHANG Zhao-wei, KONG Ling-wei, YAN Jun-biao, GAO Zhi-ao, WANG Fei, LI Cheng-sheng, . Small-strain shear modulus properties of unsaturated granitic residual soils and determination method of soil-water retention curves [J]. Rock and Soil Mechanics, 2025, 46(4): 1131-1140.
[6] ZHANG Zhen-guang, XU Jie, LI Hai-xiang, . A slip line solution of active earth pressure against shafts in unsaturated soils considering the intermediate principal stress [J]. Rock and Soil Mechanics, 2025, 46(10): 3045-3053.
[7] YE Yun-xue, YI Bo-wen, LIU Xiao-wen, WU Jun-hua, HONG Ben-gen, . Influence of water change path and volume change in soil on soil-water characteristic curve measured by filter paper method under drying path [J]. Rock and Soil Mechanics, 2024, 45(8): 2351-2361.
[8] GAO Meng, ZHANG Shuo, KONG Xiang-long, . Study on band gap characteristics of three-dimensional periodic structure wave impeding block [J]. Rock and Soil Mechanics, 2024, 45(6): 1651-1660.
[9] LIU Hong-bo, DAI Guo-liang, ZHOU Feng-xi, GONG Zhi-yu, CHEN Zhi-wei, . Longitudinal dynamic response of strength composite piles embedded in viscoelastic unsaturated soils [J]. Rock and Soil Mechanics, 2024, 45(5): 1365-1377.
[10] PENG Jun-guo, HUANG Yu-hao. A new calculation method for the size of anchor plates in unsaturated slope [J]. Rock and Soil Mechanics, 2024, 45(4): 1003-1013.
[11] ZHANG Si-qi, PEI Hua-fu, TAN Dao-yuan, ZHU Hong-hu, . Experimental study on the variation pattern of pore size distributions for unsaturated clay with single or double pore structure [J]. Rock and Soil Mechanics, 2024, 45(2): 353-363.
[12] CHEN Ke, WANG Chen, LIANG Fa-yun, WANG Zhong-wei, . A new SWRC model of unsaturated soil considering the coupling of hydraulic hysteresis and volume deformation [J]. Rock and Soil Mechanics, 2024, 45(12): 3694-3704.
[13] ZHANG Jia-lun, MA Qiang, JIANG Hui-peng, . Transmission and reflection of P1 wave at interface between saturated soil and saturated frozen soil [J]. Rock and Soil Mechanics, 2024, 45(10): 3139-3152.
[14] ZHOU Feng-xi, YAO Tao-qi, LIU Hong-bo, . Energy characteristics of Rayleigh waves propagation in unsaturated soils [J]. Rock and Soil Mechanics, 2023, 44(S1): 612-622.
[15] SHAO Shuai, SHAO Sheng-jun, GAO Meng-jie, LIU Xiao-kang, WANG Li-xin, YAN Guang-yi, . Applicability of unsaturated loess to hydraulic coupling elastoplastic model [J]. Rock and Soil Mechanics, 2023, 44(S1): 436-442.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd