A NEW TUNNEL ROOF SUPPORT SYSTEM WITH SPECIFIC REFERENCE TO THE BROVELLO TUNNEL
This paper describes the use of jet grouting with particular reference to the roof support of tunnelling excavtions in weak ground at the Brovello Tunnel in northern Italy. Details are given of the geology of the area. The particular problem at Brovello was the presence of numerous archaeological artifacts and the requirement for minimal settlement. The scheme chosen involved a combination of conventional minipiling and ground anchoring techniques, subvertical and inclined jet mixed columns for block ground stabilisation and subhorizontal jet mix columns for tunnel roof support. Details are given of the scope of the works and the construction sequence. The advantages of a jet mix shield are listed and include access to difficult areas, non-toxicity, permanence, minimal vibration, reduced noise and predictable results. For the covering abstract see IRRD 877168.
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/1897799284
-
Corporate Authors:
THE GEOLOGICAL SOCIETY PUBLISHING HOUSE, UNIT 7
BRASSMILL ENTERPRISE CENTRE, BRASSMILL LANE
BATH, United Kingdom BA1 3JN -
Authors:
- KETTLE, C T
- GANDAIS, M
- Publication Date: 1995
Language
- English
Media Info
- Features: References;
- Pagination: p. 279-88
-
Serial:
- ENGINEERING GEOLOGY OF CONSTRUCTION
- Publisher: THE GEOLOGICAL SOCIETY PUBLISHING HOUSE, UNIT 7
Subject/Index Terms
- TRT Terms: Anchorages; Conferences; Excavation; Excavations; Geology; Ground settlement; Hydraulic jetting; Pile groups; Support piles; Timbering; Tunnels
- Uncontrolled Terms: Injection (Materials)
- ITRD Terms: 3420: Anchorage; 8525: Conference; 5155: Excavation (process); 4053: Geology; 3643: Hydraulic jetting; 3617: Injection (mater); 3388: Pile group; 5792: Settlement; 3605: Timbering; 3374: Tunnel
- Subject Areas: Bridges and other structures; Data and Information Technology; Geotechnology; Maintenance and Preservation;
Filing Info
- Accession Number: 00722405
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- ISBN: 1-897799-28-4
- Files: ITRD
- Created Date: Jun 28 1996 12:00AM