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1.河海大学土木与交通学院,江苏 南京 210098
2.河海大学岩土力学与堤坝工程教育部重点实验室,江苏 南京 210098
3.西藏农牧学院西藏土木水利电力工程技术研究中心重点实验室,西藏 林芝 860000
4.国网浙江省电力有限公司平湖供电公司,浙江 平湖 314200
Received:21 June 2023,
Revised:2023-08-23,
Published:25 June 2024
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陈亮,卢周洲,滕耀宗.玄武岩纤维遏制作用下的砾类土管涌试验研究[J].防灾减灾工程学报,2024,44(03):689-696.
CHEN Liang,LU Zhouzhou,TENG Yaozong.Experimental Study on Piping of Gravel Soil under the Inhibitory Effect of Basalt Fiber[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(03):689-696.
陈亮,卢周洲,滕耀宗.玄武岩纤维遏制作用下的砾类土管涌试验研究[J].防灾减灾工程学报,2024,44(03):689-696. DOI: 10.13409/j.cnki.jdpme.20230621001.
CHEN Liang,LU Zhouzhou,TENG Yaozong.Experimental Study on Piping of Gravel Soil under the Inhibitory Effect of Basalt Fiber[J].Journal of Disaster Prevention and Mitigation Engineering,2024,44(03):689-696. DOI: 10.13409/j.cnki.jdpme.20230621001.
管涌如果无法及时得到遏制,会导致大量土体流失以致堤防溃决。为研究管涌发生环节时使用玄武岩纤维的遏制作用,拟通过室内管涌试验,从孔压、水力梯度、渗透系数、流速、颗粒流失等方面,研究不同纤维含量和纤维长度的玄武岩纤维对管涌发生发展的遏制效应。结果表明,玄武岩纤维的加入使得缺级配砾类土体的迁移通道变得更加曲折和狭窄,从而遏制整个土体的管涌发展。同等玄武岩纤维含量下玄武岩纤维缺级配砾类土存在最佳的纤维长度遏制管涌发展。纤维长度过长,增大了土体的迁移路径同时也使迁移通道相对变宽;纤维长度越短使得细颗粒的迁移通道变得更加狭窄,更加容易造成局部堵塞,进一步使得管涌继续从其他方向发展,造成颗粒的进一步流失。
If piping cannot be restrained in time
it can cause a large amount of soil erosion and lead to embankment collapse. To study the inhibitory effect of basalt fibers during the occurrence of piping
this article conducted indoor piping tests
focusing on aspects such as pore pressure
hydraulic gradient
permeability coefficient
flow velocity
and particle loss. The study examined the effects of different fiber contents and fiber lengths of basalt fibers on the suppression of piping development. The results indicated that the addition of basalt fibers made the migration path of poorly graded gravel soil more tortuous and narrow
thereby inhibiting the development of piping in the entire soil. For the same content of basalt fibers
there was an optimal fiber length to suppress piping development in poorly graded gravel soil with basalt fibers. If the fiber length was too long
it increased the migration path of the soil and also made the migration channel relatively wider. Conversely
shorter fiber length made the migration channel for fine particles narrower
which was more likely to cause local blockage and further led to piping to develop from other directions
resulting in further particle loss.
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Liu J X , Zhong Q M , Chen L , et al . Review on the simula-tion technologies of breach mechanism and breaching process of landslide dam [J]. Journal of Disaster Pre-vention and Mitigation Engineering , 2022 , 42 ( 3 ): 638 - 652 . (in Chinese)
孙东亚 , 姚秋玲 , 赵雪莹 . 堤坝涵管接触冲刷破坏模式分析 [J]. 中国水利水电科学研究院学报 , 2021 , 19 ( 2 ): 276 - 280 .
Sun D Y , Yao Q L , Zhao X Y . Analysis on failure mode of contact erosion of embankment culvert pipe [J]. Journal of China Institute of Water Resources and Hydropower Research , 2021 , 19 ( 2 ): 276 - 280 (in Chinese)
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Yao Q L, Sun D Y, Zhang S F,et al Analysis of concepts related to infiltration and erosion damage of embankments [J]. Flood Control and Drought Relief in China , 2021 , 31 ( 8 ): 7 - 10, 45 . (in Chinese)
田大浪 , 谢强 , 宁越 , 等 . 间断级配砂砾石土的渗透变形试验研究 [J]. 岩土力学 , 2020 , 41 ( 11 ): 3663 - 3670 .
Tian D L , Xie Q , Ning Y , et al . Experimental study on permeability deformation of intermittent graded sand gravel soil [J] . Geotechnical Mechanics , 2020 , 41 ( 11 ): 3663 - 3670 . (in Chinese)
Awal R , Nakagawa H , Kawaike K , et al . Experimental study on piping failure of natu-ral dam [J]. 京都大学防災研究所年報 , 2011 , 67 ( 4 ):I_157-I_162.
吴燕开 , 牛斌 , 桑贤松 . 随机分布剑麻纤维加筋土力学性能试验研究 [J]. 水文地质工程地质 , 2012 , 39 ( 6 ): 77 - 81 .
Wu Y K , Niu B , Sang X S . Experimental study on mechanical properties of randomly distributed sisal fiber reinforced soil [J]. Hydrological & Geological Engineering Geology , 2012 , 39 ( 6 ): 77 - 81 . (in Chinese)
李良勇 , 马炜迪 , 曹宝珠 . 以天然椰壳纤维加固的红黏土的力学性质研究 [J]. 海南大学学报(自然科学版) , 2020 , 38 ( 3 ): 304 - 308 .
Li L Y , Ma W D , Cao B Z . Study on the mechanical properties of red clay reinforced with natural coconut shell fibers [J]. Journal of Hainan University (Natural Science Edition) , 2020 , 38 ( 3 ): 304 - 308 . (in Chinese)
陈佳雨 , 刘之葵 , 陈永国 , 等 . 纤维红黏土强度的正交试验及多元非线性回归分析 [J]. 水文地质工程地质 , 2020 , 47 ( 1 ): 117 - 124 .
Chen J Y , Liu Z K , Chen Y G , et al . Orthogonal test and multiple nonlinear regression analysis of fiber red clay strength [J]. Hydrology & Geological Engineering Geology , 2020 , 47 ( 1 ): 117 - 124 . (in Chinses)
Li J , Ding D W . Nonlinear elastic behavior of fiber-reinforced soil under cyclic loading [J]. Soil Dynamics and Earthquake Engineering , 2002 , 22 ( 9-12 ): 977 - 983 .
Bao X , Li L , Liao Z , et al . Study of silty sand slope protection from seepage flows using short fiber-sand mixtures [J]. Geosynthetics International , 2021 , 28 ( 5 ): 491 - 507 .
Das A , Jayashree C , Viswanadham B . Effect of randomly distributed geofibers on the piping behaviour of embankments constructed with fly ash as a fill material [J]. Geotextiles &Geomembranes , 2009 , 27 ( 5 ): 341 - 349 .
Viswanadham A D V S . Experiments on the piping behavior of geofiber-reinforced soil [J]. Geosynthetics International , 2010 , 17 ( 4 ): 171 - 182 .
Estabragh A R , Soltannajad K , Javadi A A . Improving piping resistance using randomly distributed fibers [J]. Geotextiles & Geomembranes , 2014 , 42 ( 1 ): 15 - 24 .
Furumoto K , Miki H , Tsuneoka N , et al . Model test on the piping resistance of short fiber reinforced soil and its application to river levee [J]. Geosynthetics , 2002 , 1 : 1241 - 1244 .
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Sivakumar Babu G L , Vasudevan A K . Seepage velocity and piping resistance of coir fiber mixed soils [J]. Journal of Irrigation and Drainage Engineering, ASCE , 2008 , 134 ( 4 ): 485 ‑ 492 .
Kenney T C . Internal stability of granular filters [J]. Canadian Geotechnical Journal , 1985 , 22 ( 3 ): 420 - 423
卢廷浩 . 土力学 [M]. 2版 . 南京 : 河海大学出版社 , 2002 : 89 - 100 .
Lu T H . Soil mechanivs [M]. 2nd ed . Nanjing : Hohai University Press , 2002 : 89 - 100 . (in Chinese)
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