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《Chinese Journal of Underground Space and Engineering》 2013-01
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Grouting Test Study on Small-Scale Model of the Immersed Tube Tunnel Foundation

Song Guangmeng,Wang Yingyi,Huang Xingchun(Department of Civil Engineering,Shanghai Jiaotong University,Shanghai 200240,China)  
With the rapid development of the city traffic,the immersed tunnel is applied gradually in the river crossing and cross-sea project.However,there exist some problems,such as uneven settlement of foundation and leak of grouting.There are many complex technical problems in the grouting program of the immersed tube tunnel,such as characteristics of slurry flow and the evaluation system of grout filling.In the background of the Shenjiamen port cross-harbour tunnel in Zhoushan,zhejiang province this paper is to use a 1 ∶10 similarity model test to research characteristics of slurry flow and influence of different size of cushion,different falling gradient of cushion and different sludge thickness under given grouting pressure.The model test results are developed reasonably according to the similarity principles,and the relationship of the diffusion radius of foundation grouting,grouting pressure and time have been established in the actual engineering conditions.This will be helpful to provide the basis for design and construction of the immersed tube tunnel engineering.
【CateGory Index】: U451.5
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