Consolidation grouting using horizontal directional drilling technology in the Praga district of Warsaw prior to TBM tunnelling
Author(s): |
Marco Barbanti
Marco Bonanno Andrea Rigazio |
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Medium: | journal article |
Language(s): | English, German |
Published in: | Geomechanics and Tunnelling, 2014, n. 3, v. 7 |
Page(s): | 248-254 |
DOI: | 10.1002/geot.201400027 |
Abstract: |
The central section of the Warsaw 2nd Metro Line required preventive measures to protect buildings located in the Praga district above the tunnel alignment. The sections passing below buildings with EPB machines were certainly one of the most critical points. It was decided to carry out ground treatment in order to consolidate the subsoil around the tunnels. For this purpose grouting holes up to 261 m long were drilled by HDD following the tunnel path. Tunnelling did not affect the structures located above the ground, which always remained under close supervision with the use of specialist and multithreaded monitoring. |
Keywords: |
urban area settlement minimisation monitoring
|
Available from: | Refer to publisher |
- About this
data sheet - Reference-ID
10070138 - Published on:
11/06/2014 - Last updated on:
03/02/2015