EP 1035300 A1 20000913 - Drainage System for use in tunnels
Title (en)
Drainage System for use in tunnels
Title (de)
Tunnelentwässerungseinrichtung
Title (fr)
Système de drainage pour tunnels
Publication
Application
Priority
- EP 99104683 A 19990309
- CA 2265104 A 19990309
- DE 19738488 A 19970904
Abstract (en)
During tunnel construction, the water emerging at various locations in the rock wall 2 must be removed through a drainage system 1 so that it does not endanger the shotcrete or other securing coating applied to it. This is achieved with a manufacturing process in which HDPE films of high impact resistance and tear resistance are heated in an appropriate form for a deep drawing process and drawn over a positive form by application of a vacuum, and so moulded that the same surface contouring is produced over the entire length in the arch area with smooth lateral parts. The shaped length 5 consists of an arch-shaped middle section 18 having sine-wave shaped ribs 9, 10, 11 and lateral parts 6, 7 running at an angle to this having no contouring, with single ribs 21 at predetermined intervals, running right across to the edges 19, 20 of the shaped length 5, which permit bending to either side. Shaped lengths 5 of this kind and moulded parts 12, 13, 14 are also not impaired or damaged by application of shotcrete, so that thereafter, the water which would otherwise endanger the shotcrete can be safely and lastingly conducted away. <IMAGE>
IPC 1-7
IPC 8 full level
E21D 11/38 (2006.01); E21F 16/02 (2006.01)
CPC (source: EP)
E21D 11/383 (2013.01); E21F 16/02 (2013.01)
Citation (applicant)
- EP 0648916 A1 19950419 - THALMANN ALBERT [CH]
- CH 479777 A 19691015 - SPRIBAG AG [CH]
- US 3699684 A 19721024 - SIXT MARTY E
- US 4360042 A 19821123 - FOUSS JAMES L, et al
- EP 96810239 A 19960416
Citation (search report)
- [E] DE 19738488 A1 19990311 - WILLICH F BERG BAUTECHNIK [DE]
- [DA] EP 0738825 A1 19961023 - GUBLER HANS [CH], et al
- [A] CH 681475 A5 19930331 - PETER ELLENBERGER
- [A] DE 4132084 A1 19930401 - FRIESECKE GERHART [DE]
- [A] EP 0583596 A1 19940223 - DROSSBACH GMBH & CO KG [DE]
- [A] EP 0725185 A1 19960807 - WOLFSEHER ROLAND F [CH]
- [A] DE 4117431 A1 19921203 - FRIESECKE GERHART [DE]
- [A] CH 613253 A5 19790914 - RUHRKOHLE AG [DE]
- [A] US 3699684 A 19721024 - SIXT MARTY E
- [A] DATABASE WPI Section Ch Week 9719, Derwent World Patents Index; Class A93, AN 97-203388, XP002108449
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1035300 A1 20000913; EP 1035300 B1 20030910; AT E249570 T1 20030915; CA 2265104 A1 20000909; CH 691697 A5 20010914; DE 19738488 A1 19990311
DOCDB simple family (application)
EP 99104683 A 19990309; AT 99104683 T 19990309; CA 2265104 A 19990309; CH 230997 A 19971002; DE 19738488 A 19970904