SOUTH PUMICESTONE REHABILITATION AND SEAWALL RENEWAL
CLIENT: MORETON BAY REGIONAL COUNCIL
DATE OF COMPLETION: SEPTEMBER 2013
WORK SCOPE:
-
REMOVAL OF EXISTING SHORELINE PROTECTION, EXCAVATION TO REAR OF SEAWALL
-
INSTALLATION OF GROUND ANCHORS TO TIE BACK EXISTING SEAWALL
-
INSTALLATION OF VINYL SHEETPILES TO TOE OF EXISTING WALL
-
FORM AND CAST CONCRETE TO NEW BOTTOM STEP
-
ROCK BEACHING AND PROTECTION TO CULVERT OUTFALL
-
BEACH NOURISHMENT
PROJECT DRAWINGS: SOUTH PUMICESTONE REHABILITATION
ANTI SCOUR ROCK PROTECTION
Armour rock being placed
Geotextile material placed under rock to avoid sinking
Finished vynal sheet pile culvert
Excavation for sheet pile installation
Installing Sheet piles for concrete step
Vinyl Sheet pile installation
Equipment used:
-
7.8t excavator for excavation
-
Sheet Pile Vibrator
Application:
-
Support for new seawall footing
-
Prevents scour of sand behind the wall
Locking anchor off into existing seawall
Anchors guides setup
Installation of ground anchor
Ground anchor installation
Equipment used:
-
7.8t excavator for excavation
-
4t excavaator with rock hammer
-
30t jack for post instalation tensioning
-
5t jack for lock off loads
Application:
-
Support for existing seawall
-
Prevents longditudinal moment
Installation of sheet pile bund wall to allow longer working times
Vibrating concrete through rock
Installing bund wall for culvert
Concreting in the inter tidal zone
Works Completed:
-
120m and 105m sections of two teir step
-
Culvert base with 500mm of rock
Solutions to tidal interference:
-
Sheet pile bund wall to allow longer working times
-
Organisation of work around out going tides