期刊
COMPUTERS AND GEOTECHNICS
卷 104, 期 -, 页码 152-166出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2018.08.015
关键词
Ground movements; Pressurised tunnel heading; Drained granular soil; Physical model; coupled Eulerian-Lagrangian analyses
类别
资金
- National Key R&D Program of China [2016YFC0802008, 2017YFC0805407]
- National Natural Science Foundation of China [41630641]
- Project of Tianjin Science and Technology Plan [16YDLJSF00040]
Face pressurised tunnel boring machines usually engender a complex expanding displacement field near the tunnel heading, which has not been well studied. In this article, the ground movements near a pressurised tunnel heading in drained granular soil were first investigated by physical model tests, in which the catastrophic scenario of face collapse and the normal situation of shield advance were both reproduced. Then coupled Eulerian-Lagrangian analyses were performed to gain further insights into the ground movements near a pressurised tunnel front. The simulation results showed good agreements with the test data, and the ground response mechanism was finally made clear.
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