Consolidation grouting using horizontal directional drilling technology in the Praga district of Warsaw prior to TBM tunnelling

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. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/18657362
• Authors:
  • BARBANTI, M
  • BONANNO, M
  • RIGAZIO, A
• Publication Date: 2014-6

Language

• English

Media Info

• Pagination: 248-54
• Serial:
  • GEOMECHANICS AND TUNNELLING / GEOMECHANIK UND TUNNELBAU
  • Volume: 7
  • Issue Number: 3
  • Publisher: ERNST & SOHN GMBH
  • ISSN: 1865-7362

Subject/Index Terms

• TRT Terms: Consolidation; Drilling; Excavation; Full face tunneling; Shielding (Tunneling); Soil stabilization; Subways; Tunneling machines; Tunnels; Urban areas
• Uncontrolled Terms: Horizontal; Injection (Materials)
• Geographic Terms: Poland
• ITRD Terms: 5791: Consolidation (soil); 3871: Drilling; 5155: Excavation (process); 3383: Full face boring machine; 3617: Grouting; 9029: Horizontal; 8089: Poland; 3394: Shield driving; 3374: Tunnel; 3383: Tunnel boring machine; 1191: Underground railway; 313: Urban area
• Subject Areas: Geotechnology; I54: Construction of Tunnels;

Filing Info

• Accession Number: 01549962
• Record Type: Publication
• Source Agency: Bundesanstalt für Straßenwesen (BASt)
• Files: ITRD
• Created Date: Jan 15 2015 11:50AM