典型文献
Visualizing the dynamic progression of backward erosion piping in a Hele-Shaw cell
文献摘要：
With the utilization of underground space, backward erosion piping (BEP) has been observed in many underground structures (e.g., shield tunnels) founded on sandy aquifers. However, due to invisibility, the geometry of the eroded pipe and its spatial evolution with time during the piping process was still not clear. In this study, we developed a Hele-Shaw cell to visualize the dynamic progression of BEP. With imaging process technology, we obtained a typical process of BEP (the erosion process can be divided into a piping progression phase and a piping stabilization phase), quantitatively characterized the formation of erosion pipes, and compared the patterns of erosion (e.g., the erosion area A and the maximum erosion radius Rmax) that spontaneously develop under different fluxes of water. The most interesting finding is that the sand grains in a thicker Hele-Shaw model are easier to dislodge, which is possibly due to the granular system in a thicker model having more degrees of freedom, reducing the stability of the sand grains.
文献关键词：
中图分类号：
作者姓名：
Gang ZHENG;Jing-bo TONG;Tian-qi ZHANG;Zi-wu WANG;Xun LI;Ji-qing ZHANG;Chun-yu QI;Hai-zuo ZHOU;Yu DIAO
作者机构：
MOE Key Laboratory of Coast Civil Structure Safety,Tianjin University,Tianjin 300072,China;School of Science,Tianjin University,Tianjin 300072,China;China Railway Design Corporation,Tianjin 300308,China;National Engineering Laboratory for Digital Construction and Evaluation Technology of Urban Rail Transit,Tianjin 300308,China
文献出处：
引用格式：
[1]Gang ZHENG;Jing-bo TONG;Tian-qi ZHANG;Zi-wu WANG;Xun LI;Ji-qing ZHANG;Chun-yu QI;Hai-zuo ZHOU;Yu DIAO-.Visualizing the dynamic progression of backward erosion piping in a Hele-Shaw cell)[J].浙江大学学报（英文版）（A辑：应用物理和工程）,2022(11):945-954
A类：
dislodge
B类：
Visualizing,dynamic,progression,backward,erosion,piping,Hele,Shaw,cell,With,utilization,underground,space,BEP,been,observed,many,structures,shield,tunnels,founded,sandy,aquifers,However,due,invisibility,geometry,eroded,its,spatial,evolution,during,process,was,still,not,clear,In,this,study,developed,visualize,imaging,technology,obtained,typical,can,divided,into,phase,stabilization,quantitatively,characterized,formation,pipes,compared,patterns,area,maximum,radius,Rmax,that,spontaneously,different,fluxes,water,most,interesting,finding,grains,thicker,model,easier,which,possibly,granular,system,having,more,degrees,freedom,reducing,stability
AB值：
0.55335
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