Bibliographic Details
| Title: |
Modelling ground movements near a pressurised tunnel heading in drained granular soil. |
| Authors: |
Zhang, Tianqi1, Neil Taylor, R.1, Zheng, Gang1 zhenggang1967@163.com, Sun, Jibin1, Fan, Qi1, Diao, Yu1, Zhou, Haizuo1 |
| Source: |
Computers & Geotechnics. Dec2018, Vol. 104, p152-166. 15p. |
| Subjects: |
Boring & drilling (Earth & rocks), Soil vibration, Tunnel design & construction, Soil granularity, Structural failures |
| Abstract: |
Abstract 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. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
