Acoustic Emission Characteristics of Ice-Rock Mixture and Frozen Soil-Rock Mixture under Splitting Test

  • Hu Feng ,
  • Zhu Yijun ,
  • Lü Qing ,
  • Li Zhiqing ,
  • Wang Shuangjiao
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  • 1. Zhejiang Institute of Communications Co., Ltd., Hangzhou 310012, P. R. China;
    2. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, P. R. China;
    3. Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, P. R. China

Received date: 2024-03-11

  Online published: 2025-01-03

Abstract

Research on frozen geotechnical material is focused on guaranteeing the security of civil engineering and preventing of geological hazards in cold regions. The acoustic emission (AE) tests of the ice, ice-rock mixture, frozen soil, and frozen soil-rock mixture samples were carried out under Brazilian splitting conditions. The characteristics of crack evolution, acoustic emission energy and, b-value were discussed. The results show that: (1) The cracks in the ice-rock mixture and frozen soil-rock mixture are more tortuous than those in ice and frozen soil. (2) The crack in the ice-rock mixture is mainly distributed inside the ice near the ice-rock interface. Moreover, the tensile strength and acoustic emission energy of the ice-rock mixture are larger than that of ice. (3) The crack of frozen soil-rock mixture is composed of frozen soil crack and soil-rock interface crack. The frozen soil-rock interface is the weakest part inside the frozen soil-rock mixture, which leads to the acoustic emission energy of the frozen soil-rock mixture is smaller than that of frozen soil. (4)The acoustic emission energy peak of ice and ice-rock mixture being consistent with the leading peak and shows an obvious single peak pattern. Nevertheless, in the case of frozen soil and frozen soil-rock mixture, the acoustic emission energy peak lags behind the loading peak and display a multi-peak feature. (5) The b-values of all the samples decrease with the increasing loading in the pre-peak region, and then show an increasing trend with the decreasing loading in the post-peak region. Furthermore, the amplitude of the b-value of frozen soil-rock mixture is larger than that of others. It can be postulated that the alternating crack growth of soil and interface cracks triggers the different acoustic emission energy.

Cite this article

Hu Feng , Zhu Yijun , Lü Qing , Li Zhiqing , Wang Shuangjiao . Acoustic Emission Characteristics of Ice-Rock Mixture and Frozen Soil-Rock Mixture under Splitting Test[J]. Chinese Journal of Underground Space and Engineering, 2024 , 20(6) : 1877 -1884 . DOI: 10.20174/j.JUSE.2024.06.13

References

[1] 白利茹, 柴明堂, 武立波, 等. 青藏公路病害图像提取及分析[J]. 公路, 2021, 66(11): 32-37.(Bai Liru, Chai Mingtang, Wu Libo, et al. Extraction and analysis on pavement defects of the Qinghai-Tibet higway[J]. Highway, 2021, 66(11): 32-37.(in Chinese))
[2] 彭惠, 马巍, 穆彦虎, 等. 青藏公路普通填土路基长期变形特征与路基病害调查分析[J].岩土力学, 2015, 36(7): 2049-2056.(Peng Hui, Ma Wei, Mu Yanhu, et al. Analysis of disease investigation and long-term deformation characteristics of common fill embankment of the Qinghai-Tibet highway[J]. Rock and Soil Mechanics, 2015, 36(7): 2049-2056.(in Chinese))
[3] 吴彤, 许键, 钱文君,等. 多年冻土区管桩基础抗拔承载力性能试验研究[J]. 地下空间与工程学报, 2018, 14(1): 145-153.(Wu Tong, Xu Jian, Qian Wenjun, et al. Experimental research on uplift mechanism of pipe foundation in permafrost area[J]. Chinese Journal of Underground Space and Engineering, 2018,14(1):145-153.(in Chinese))
[4] 德吉, 姚檀栋, 姚平, 等. 冰芯和气象记录揭示的青藏高原百年来典型冷暖时段气候变化特征[J]. 冰川冻土, 2013, 35(6): 1382-1390. (De Ji, Yao Tandong, Yao Ping, et al.Characteristics of climate change in warm and cold periods revealed from ice cores and meteorological records during the past 100 years on the Tibetan Plateau[J]. Journal of Glaciology and Geocryology, 2013, 35(6) : 1382-1390.(in Chinese))
[5] 申艳军, 陈思维, 张蕾, 等. 冰雪型地质灾害链高位萌生、动力溃散及物相转化过程剖析[J]. 冰川冻土, 2022, 44(2): 634-656.(Shen Yanjun, Chen Siwei, Zhang Lei, et al. High-altitude initiation, dynamic collapse and phase transformation of mountain snow-ice meltgeological disaster chain[J]. Journal of Glaciology and Geocryology, 2022, 44(2): 643-656.(in Chinese))
[6] 康世昌, 郭万钦, 吴通华, 等. “一带一路”区域冰冻圈变化及其对水资源的影响[J]. 地球科学进展, 2020, 35(1): 1-17.(Kang Shichang, Guo Wanqin, Wu Tonghua, et al. Cryospheric changes and their impacts on water resources in the Belt and road Regions[J]. Advances in Earth Science, 2020, 35(1): 1-17.(in Chinese))
[7] 马巍, 王大雁. 中国冻土力学研究50a回顾与展望[J]. 岩土工程学报, 2012, 34(4): 625-640.(Ma Wei, Wang Dayan. Studies on frozen soil mechanics in China in past 50 years and their prospect[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(4): 625-640.(in Chinese))
[8] Andersland O B, Ladanyi B. An introduction to frozen ground engineering[M]. Springer, Boston, MA, 1994.
[9] Fitzsimons S J, Mcmanus K J, Lorrain R D. Structure and strength of basal ice and substrate of a dry-based glacier: Evidence for substrate deformation at sub-freezing temperatures[J]. Annals of Glaciology, 1999, 28(1): 236-240.
[10] 祁长青, 王昭楷, 李柳杨. 温度和含冰量对冻结土石混合体力学特性的影响[J]. 工程地质学报, 2016, 24(增1): 1112-1117.(Qi Changqing, Wang Zhaokai, Li Liuyang. Influence of temperature and ice content on mechanical properties of frozen rock-soil mixture[J]. Journal of Engineering Geology, 2016, 24(Supp.1): 1112-1117.(in Chinese))
[11] 何菲, 王旭, 蒋代军, 等. 关于冻土与结构面接触特性研究的几点思考[J]. 地下空间与工程学报, 2016, 12(1): 133-139.(He Fei, Wang Xu, Jiang Dajun, et al. Thoughts on the research of behaviors of frozen soil-structure interface[J]. 2016, 12(1): 133-139.(in Chinese))
[12] Areson L U, Johansen M M, Springman S M. Effects of volumetric ice content and strain rate on shear strength under triaxial conditions for frozen soil samples[J]. Permafrost and Periglacial Processes, 2004,15(3):261-271.
[13] Li Z Q, Hu F, Qi S W, et al. Strain-softening failure mode after the post-peak as a unique mechanism of ruptures in a frozen soil-rock mixture[J]. Engineering Geology, 2020, 274: 105725.
[14] 陈晓东, 崔海鑫, 王安良, 等. 基于巴西盘试验的海冰拉伸强度研究[J].力学学报, 2020, 52(3): 625-634.(Chen Xiaodong, Cui Haixin, Wang Anliang, et al. Experimental study on sea ice tensile strength based on Brazilian tests[J]. Chinese Journal of Theoretical and Applied Mechanics, 2020, 52(3): 625-634.(in Chinese))
[15] Head J, Neukum G, Jaumann R, et al. Tropical to mid-latitude snow and ice accumulation, flow and glaciation on Mars[J]. Nature, 2005, 434(7031): 346-351.
[16] Yamamoto A Y, Springman S M. Axial compression stress path tests on artificial frozen soil samples in a triaxial device at temperatures just below 0 ℃[J]. Canadian Geotechnical Journal, 2014, 51(10): 1178-1195.
[17] Medley E W. The engineering characterization of melanges and similar block-in-matrix rocks (Bimrocks)[D]. Berkeley: University of California, 1994.
[18] 郭庆国. 粗粒土的工程特性及应用[M]. 郑州: 黄河水利出版社, 1998. (Guo Qingguo. Engineering characteristics and its application of aggregate soil[M]. Zhengzhou: Yellow River Conservancy Press, 1998. (in Chinese))
[19] 胡峰, 李志清, 孙凯, 等. 冻土石混合体、冰石混合物和冻土在压、拉作用下的破坏特征对比[J].岩石力学与工程学报, 2021, 40(增1): 2923-2934.(Hu Feng, Li Zhiqing, Sun Kai, et al. Comparison on the compressive and tensile failure properties of frozen soil-rock mixture, ice-rock mixture and frozen soil[J].Chinese Journal of Rock Mechanical and Engineering, 2021, 40(Supp.1): 2923-2934.(in Chinese))
[20] 曾正文, 马瑾, 刘力强, 等. 岩石破裂扩展过程中的声发射b值动态特征及意义[J].地震地质, 1995, 17(1): 7-12.(Zeng Zhengwen, Ma Jin, Liu Liqiang, et al. AE b-value dynamic features during rockmass fracturing and their significances[J]. Seismology and Geology, 1995, 17(1): 7-12.(in Chinese))
[21] 李浩然, 王子恒, 孟世荣, 等. 高温三轴应力下大理岩损伤演化与声发射活动特征研究[J]. 岩土力学, 2021, 42(10): 2672-2682.(Li Haoran, Wang Ziheng, Meng Shirong, et al. Acoustic emission activity and damage evolution characteristics of marble under triaxial stress at high temperatures[J]. Rock and Soil Mechanics, 2021, 40(10): 2672-2682.(in Chinese))
[22] Utsu T.A method for determining the value of“b” in a Formula logn=a-bM Showing the magnitude-frequency relation for earthquakes[J]. Geophysical Bulletin of the Hokkaido University, 1965, 13: 99-103.
[23] Cox S J D, Meredith P G.Microcrack formation and material softening in rock measured by monitoring acoustic emissions[J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1993, 30(1): 11-24.
[24] 董陇军, 张凌云. 岩石破坏声发射b值的误差分析[J]. 长江科学院院报, 2020, 37(8): 75-81.(Dong Longjun, Zhang Lingyun. Error analysis of b-value of acoustic emission for rock fracture[J]. Journal of Yangtze River Scientific Research Institute, 2022, 37(8): 75-81.(in Chinese))
[25] Nava F A, Márquez-Ramírez V H, Zúñiga F R, et al. Gutenberg-Richter b-value maximum likelihood estimation and sample size[J]. Journal of Seismology, 2017, 21(1): 1-9.
[26] 王超圣, 蔡俊超, 韩书娟, 等.北山花岗岩声发射特征及破坏模式识别研究[J].地下空间与工程学报,2023,19(1):87-94.(Wang Chaosheng, Cai Junchao, Han Shujuan, et al. Study on acoustic emission characteristics and failure mode identification of Beishan Granite[J]. Chinese Journal of Underground Space and Engineering, 2023, 19(1): 87-94.(in Chinese))
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