MARINE SHEET PILING
(Based on Marina Barrage Project experience)

PRODUCTION
RATE
CREW
PLANT
WORKING CONDITION
240-350 m (penetration)/rig.d,
or 2.3-3.3 m/rig.d (on plan)
- 1 captain;
- 1 crane operator;
- 2 vibro controllers;
- 1 vibro power pack operator;
- about 5 welders
- Crane barge;
- 8 or 12 ton vibro hammer with power pack;
- Material barge;
- Tug boat (shared use)
- Soft to media sandy clay;
- 42m deep;
- Can be 2 barge working cooperatively: 1st (light weight vibro pitching, 2nd (heavy weight vibro) tapping to the design level
- Driving in pair of sheet piles

NOTE:
1) Typical crane barge size: 40-45m x 13-15m;
2) Anchor length (2 nos. and crossing, at both ends): the longer, the stable. Minimum 20m (1:2), normally 40m (1:1);
3) Crane lifting capacity 150t can lift up to 12t vibro hammer.

 

TYPICAL PHOTOGRAPHS


A typical layout when piling for marine sheet piles


Sheet pile fabrication yard - to join 2 pieces of sheet piles (12m, 14m, 16m) by butt welding and splice plate


Interlocking 2 pieces of sheet piles to become a pair


Install a guide beam before driving sheet piles


Close view of the guide beams


Driving marine sheet pile using vibro hammer from crane barge


Sheet pile installation pattern - alternate pitching and driving (neighbouring welding splice staggered)

CROSS REFERENCE
Sheet piling technologies