Investigation on Ultrasonic Wave Properties of Clay-Sand Mixture under Triaxial Compression Condition

Liu Taogen; Li Ling; Wang Wei; Xie Jingli; Liu Zaobao

doi:10.20174/j.JUSE.2024.S1.15

Chinese Journal of Underground Space and Engineering >

2024 , Vol. 20 >Issue S1: 119 - 127

DOI: https://doi.org/10.20174/j.JUSE.2024.S1.15

Investigation on Ultrasonic Wave Properties of Clay-Sand Mixture under Triaxial Compression Condition

Liu Taogen ,
Li Ling ,
Wang Wei ,
Xie Jingli ,
Liu Zaobao

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1. School of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang 330099, P. R. China;
2. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, P. R. China;
3. Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, P. R. China;
4. Beijing Research Institute of Uranium Geology, Beijing 100029, P. R. China;
5. Key Lab of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang 110819, P. R. China;
6. Institute of Deep Engineering and Intelligent Technology, Northeastern University, Shenyang 110819, P. R. China

Received date: 2024-03-19

Online published: 2024-09-30

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Abstract

In order to investigate the ultrasonic wave characteristic of buffer/backfilled material of the geological disposal for high level radioactive nuclear waste with highly buried depth, triaxial compression test including two different stress loading paths and OCRs, complying with ultrasonic test, are carried out by using the rock triaxial compression servo-controlled testing apparatus and the ultrasonic wave testing device. The stress loading paths performed correspond respectively to confining compression test and convention triaxial compression test. The OCR is set to be 0.83 and 2.9. The results show that the curves of velocity of compression wave and shear wave V_p and V_s can be also divided into three phases similar to that of stress-strain curve obtained from confined compression test. However, a hysteresis phenomenon can be observed from the curve of V_p. In the condition of deviatoric loading, the V_p increases with a gradually attenuation rate, the V_s seems to decreases linearly. The changes of both V_p and V_s are related to confining pressure. The evolutions of dynamic shear modulus and Poisson rate (G_d and μ_d) are similar to those of V_s and V_p, respectively. The G_d depends on confining pressure. A square polynomial correlation is proposed to describe the correlation between V_p and V_s and effective mean pressure p', which can reveal the influence of p on V_p and V_s. In terms of the analysis on spectrum and time-frequency spectrograph of the result obtained from the conventional triaxial compression test with effective confining pressure equal to 7.0 MPa, the main frequency of S-wave signal raises increasingly, but the main amplitude decrease firstly and then increases. It becomes ambiguity to identify the main frequency. The higher confining pressure, the stronger the attenuation of S-wave signal. A coalescence between the I and II time intervals can be observed, which refers to the abatement of the S-wave splitting effect. The findings obtained in this study can provide the basis for the design of buffer/backfilled material, and can also be used as a reference in other engineering projects.

Key words： compacted clay-sand mixture; triaxial compression; stress loading path; velocity of ultrasonic wave; wavelet transform; time-Frequency spectrograph

Cite this article

Liu Taogen , Li Ling , Wang Wei , Xie Jingli , Liu Zaobao . Investigation on Ultrasonic Wave Properties of Clay-Sand Mixture under Triaxial Compression Condition[J]. Chinese Journal of Underground Space and Engineering, 2024 , 20(S1) : 119 -127 . DOI: 10.20174/j.JUSE.2024.S1.15

References

[1] 张虎元, 王赵明, 朱江鸿, 等.混合型缓冲材料砌块渗透性及其各向异性研究[J]. 岩土力学, 2022, 43(3): 1-10.
[2] 刘樟荣, 崔玉军, 叶为民, 等.缓冲/回填材料-膨润土颗粒及其混合物研究进展[J].岩土工程学报, 2020, 42(8): 1401-1410.
[3] 孙德安, 张乾越, 张龙, 等.高庙子膨润土强度时效特性试验研究[J]. 岩土力学, 2018, 39(4): 1191-1196.
[4] 陈皓, 吕海波, 陈正汉.高庙子膨润土在高温高压下的强度特性研究[J]. 岩土工程学报, 2018, 40(增1): 28-33.
[5] Tang C S, Tang A M, Cui Y J. Investigating the swelling pressure of compacted crushed Callovo-Oxfordian claystone[J]. Physics and Chemistry of the Earth, 2011, 36(17): 1857-1866.
[6] Delage P, Marcial D, Cui Y J. Ageing effects in a compacted bentonite: a microstructure approach[J].Geotechnique, 2006, 56(5): 291-304.
[7] 单治钢, 赵留园, 倪卫达.白鹤滩坝址区岩体弹性参数测试方法对比研究[J]. 水力发电学报, 2022, 41(5): 103-114.
[8] 安光明, 杨球玉, 杨立建, 等.某核电厂岩体动静弹性模量的对比研究[J]. 岩土力学, 2011, 32(增1): 565-569.
[9] 刘江平, 罗银河, 张英德.黏土动、静弹性模量相关性试验研究[J].岩土力学与工程学报, 2007, 26(2): 427-432.
[10] 景亮, 吴琪, 方怡.砂-粉混合料剪切波速的弯曲元及共振柱试验对比试验研究[J]. 震灾防御技术, 2020, 15(4): 696-707.
[11] Dutta T T, Otsudo M, Kuwano R, et al. Evolution of shear wave velocity during triaxial compression[J]. Soils and Foundations, 2020, 60: 1357-1370.
[12] 顾晓强, 杨峻, 黄茂松, 等.砂土剪切模量测定的弯曲元、共振柱和循环扭剪试验[J]. 岩土工程学报, 2016, 38(4): 740-746.
[13] 张培森, 赵成业, 李腾辉, 等.红砂岩三轴加载过程波速变化及能量演化规律试验研究[J]. 岩石力学与工程学报, 2021, 41(7):1369-1382.
[14] 周跃峰, 杨哲, 饶锡保, 等.不同含水率黏土弹性参数的弯曲-伸展元试验研究[J]. 岩土力学, 2020, 41(增1): 387-395.
[15] 孙奇, 董全杨, 蔡袁强, 等.砂土小应变动力特性弯曲-伸缩元联合测试试验研究[J]. 岩土工程学报, 2016, 38(1): 100-108.
[16] Lings M L, Greening P D. A novel bender/extender element for soil testing[J].Geotechnique, 2001, 51(8): 713-717.
[17] 李浩然, 杨春和, 李佰林, 等.三轴多级荷载下盐岩声波发射特征与损伤演化规律研究[J]. 岩石力学与工程学报, 2016, 35(4): 682-691.
[18] 张宇辉, 张献民.土石混填料纵、横波波速与泊松比的相关性分析[J]. 长安大学学报(自然科学版), 2016, 36(1): 28-36.
[19] 李玲, 刘金泉, 刘造保, 等.砂-黏土混合物高压压实性能实验研究[J]. 岩土力学, 2019, 40(9): 3502-3514.
[20] 黄彦良, 郑珉, 张琦超, 等.核废料储罐近域环境中温湿度长期演变预测[J]. 装备环境工程, 2018, 5(7): 1341-1352.
[21] 刘鑫, 杨峻, 张宁.粉质砂土剪切波速测定的弯曲元试验[J]. 防灾减灾工程学报, 2019, 39(2): 279-284.
[22] Suwal L P, Kuwano R. Disk shaped piezo-ceramic transducer for P and S wave measurement in a laboratory soil specimen[J]. Soils and Foundations, 2013, 53(4): 510-524.
[23] 蔡新滨, 孙进忠, 陈祥.岩体波动参数的测试及动静力学参数的综合应用[J]. 岩石力学与工程学报, 2005, 24(1): 4956-4964.
[24] 周伟达, 张鸣, 徐松林, 等.外荷载作用下水泥砂浆复合材料中的弹性波波速分析[J]. 实验力学, 2017, 32(1): 17-26.
[25] 尤明庆, 苏承东, 李小双.损伤岩石试样的力学特性与纵波波速关系研究[J]. 岩石力学与工程学报, 2008, 27(3): 458-467.
[26] 葛洪魁, 陈颙, 韩德华.有效应力对岩石弹性波速的影响[J]. 地球物理学报, 2001, 44(增1): 152-160.
[27] 郑贵平, 赵兴东, 刘建坡, 等.岩石加载过程中声波波速变化规律试验研究[J]. 东北大学学报(自然科学版), 2009, 30(8): 1197-1200.
[28] 乔峰, 薄景山, 张兆鹏, 等.广西柳州地区常见土类剪切波速与埋深之间的相关性[J]. 地震学报, 2020, 42(1): 109-119.
[29] 刘洪帅, 郑桐, 齐文浩, 等.常规土类剪切波速与埋深的关系分析[J]. 岩土工程学报, 2010, 32(7): 1142-1149.
[30] Gardner G H F, Gardner L W, Gregory A R. Formation velocity and density-the diagnostic basics for stratigraphic traps[J]. Geophysics, 1974, 39(6): 770-780.
[31] 马中高, 解吉高.岩石的纵、横波波速与密度的规律研究[J].地球物理学进展, 2005, 20(4): 905-910.
[32] 龙建军, 李赶先, 邹大鹏.海底沉积物纵波波速与物理-力学性质的理论关系和比较[J].海洋学报, 2014, 36(7): 111-117.
[33] 张盛, 张旭龙, 王晓峰, 等.围压作用下花岗岩加载过程中波速变化规律试验研究[J]. 岩石力学与工程学报, 2019, 38(9): 1767-1674.
[34] 黄鑫, 李东庆, 明锋, 等.冻结重塑黄土单轴加载过程中声波传播特性试验研究[J]. 岩土工程学报, 2015, 37(9): 1660-1667.
[35] Hattab M, Fleureau J M. Experimental study of kaolin particle orientation mechanism[J]. Geotechnique, 2010, 60(5): 323-331.
[36] 邓涛, 黄斌彩, 杨林德.致密岩石纵横波波速各向异性的比较研究[J].岩土力学, 2007, 28(3): 493-498.
[37] 徐晓炼, 张茹, 戴峰, 等.煤岩特性对超声波速影响的试验研究[J].煤炭学报, 2015, 40(4): 793-800.
[38] Li X Y, Grampin S. Linear-transform techniques for processing shear-wave anisotropy in four component seismic data[J]. Geophysics, 1993, 58:240-256.
[39] 张建利, 王赟, 张玉贵.横波偏振方法在煤样超声测量实验中的应用[J].煤炭学报, 2013, 38(7): 1220-1226.

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