waterproofing tunnels
DESCRIPTION
construction of waterproofing for tunnelTRANSCRIPT
TTUUNNNNEELL
CCOONNSSTTRRUUCCTTIIOON N
RUZELA BT MAT GHANI2010775177
MOHD KHAIRUL FAZMEZA BIN MOHD
ASRI2010703805
Pn Farrah Norizzah Mohd Yussof
AHMAD AZFAR AZMAN
2010518433
NOR FAHIMAH BT MD DALI2010953919
WATERPROOFINGDEFINITION
Various types of waterproofing materials are used in modern tunnel construction. Solid waterproofing is made of waterproof building organic or synthetic film filter materials, synthetic resinous materials, and steel sheets.
May be partial as with “umbrella” waterproofing. Example for a tunnel roof , in which case it is not exposed to hydrostatic
pressure.The function to enhance safety and function as well as increase useful life of these structures.protect important structures against corrosion. It reduces maintenance costs and repairs.
The waterproofing of a tunnel consists of -A support - A protective geotextile - A waterproofing fabric membrane
GEOTEXTILE WATERPROOFING
www.renolit.com www.alkorgeo.com
PVC MEMBRANE
Closing/Sealing Waterstop
External Waterstop Internal Waterstop 3 TYPES OF WATERSTOPS
WATERTIGHT CONCRETE/WATERSTOP
S
The TSGs, which are located in precast grooves encircling the mating faces of each segment, give a secure rubber-to-rubber waterproof seal as soon as the segments are bolted together
Heinke Tunnel Segment Gaskets
Application of an omega seal in a
bored tunnel.
The Omega seal allows joint movement in combination with water pressure. Applicationsencompass the connection between a bored tunnel and the entrance to a structure such as a rail station
Omega sealsEXAMPLE OF WATERTIGHT
http://www.trelleborg.com/upload/Infrastructure/Files/Waterstops.pdf
STRUCTURAL WATERPROFFING SYSTEM
TYPICAL SUPPORT ELEMENTS
1. STEEL ARCHES( SLIDING SYSTEM) = STEEL LINING SYSTEM
Gantry acts as the working platform to install formwork and move forward gradually as it completed.
i. REINFORCEMENT CONCRETE LINING
2. CONCRETE LINING
ii. PRECAST CONCRETE LINING
1. Installation without using tunnel boring machine
2. Installation using tunnel boring machine
1. http://www.trelleborg.com/upload/Infrastructure/Files/Gina%20Gasket.pdf
INFLUENCES ON WATERPROOFING IN TUNNEL
broch_waterproofing_tunnels_515
video