Performance of Slurry Shield Tunnelling in Mixed Strata Based on Field Measurement and Numerical Simulation
Joint Authors
Fang, Yong
He, Chuan
Cui, Jian
Tao, Liming
Xu, Wanghao
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-01-08
Country of Publication
Egypt
No. of Pages
14
Abstract EN
There are severe challenges for slurry pressure balance tunnel boring machine (TBM) tunnelling in sandy cobble soil of Beijing, Chengdu, and Lanzhou in China.
And the problems caused by tunnelling from silty clay to sandy cobble stratum are more serious.
With the change of stratum, the key parameters and surface settlement will change correspondingly.
Controlling the key parameters and predicting the surface settlement accurately and efficiently is important for hazard mitigation and risk management.
In this study, based on the Tsinghuayuan Tunnel project in Beijing, the key parameters and surface settlement while tunnelling from silty clay to sandy cobble stratum are studied.
Firstly, the difference of key parameters while tunnelling in two different strata is analyzed.
The analysis shows that immediate responses to changes in the stratum are recommended in order to ensure construction efficiency.
Then, a refined 3D finite difference model is developed to simulate the slurry TBM tunnelling in different strata.
For refined simulation, three key parameters obtained from measurement data were applied to the 3D models, and the simulation results were compared with the field data.
Results show that the refined model has good performance in terms of the accuracy and efficiency.
This study provides a good engineering practice reference for slurry TBM tunnelling in mixed strata.
American Psychological Association (APA)
Cui, Jian& Xu, Wanghao& Fang, Yong& Tao, Liming& He, Chuan. 2020. Performance of Slurry Shield Tunnelling in Mixed Strata Based on Field Measurement and Numerical Simulation. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1128924
Modern Language Association (MLA)
Cui, Jian…[et al.]. Performance of Slurry Shield Tunnelling in Mixed Strata Based on Field Measurement and Numerical Simulation. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1128924
American Medical Association (AMA)
Cui, Jian& Xu, Wanghao& Fang, Yong& Tao, Liming& He, Chuan. Performance of Slurry Shield Tunnelling in Mixed Strata Based on Field Measurement and Numerical Simulation. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1128924
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1128924