Study on Model of Back-Filled Grouting of Shield Tunnel

Dao Yuan Wang; Dong Li; Jin Xiu Yuan

doi:10.4028/www.scientific.net/AMR.919-921.883

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 919-921Study on Model of Back-Filled Grouting of Shield...

Study on Model of Back-Filled Grouting of Shield Tunnel

Abstract:

Basing on the theory of maag cylindrical diffusion, back grout diffusion radius and grouting pressure formula of shield tunnel were derived in two cases of the viscosity time-dependent behavior or not.The distribution law of diffusion radius and the pressure to segments were obtained by applicating the spreading model in some project.The results show that grout diffusion radius and grouting pressure both increase with the increasing of grouting time and grouting pressure whether considering the viscosity time-dependent behavior or not.In the same grouting time (pressure),the calculated values that unconsidering the viscosity time-dependent behavior are bigger than the values of considering.

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Periodical:

Advanced Materials Research (Volumes 919-921)

Pages:

883-886

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.919-921.883

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Online since:

April 2014

Authors:

Dao Yuan Wang, Dong Li, Jin Xiu Yuan

Keywords:

Back-Filled Grouting, Diffusion Model, Shield, Time-Dependent Behavior

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References

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