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A platform for research: civil engineering, architecture and urbanism
Driven Ductile Iron Pipe Piles: Design, Installation, and Performance
The driven ductile iron pile system is a simple and economical driven foundation system, requiring only a medium sized excavator equipped with a hydraulic, breaker-type driving hammer and a specially fabricated driving shank. The pipe material is centrifugally-cast ductile iron, with decades of proven success in underground applications, and which has excellent tenacity, ductility, strength, and corrosion resistance properties. The individual pipe sections, 5 m (16.4 ft) in length and outside diameter of either 118 mm (4.6 in) or 170 mm (6.7 in), are joined together via a conical bell end on one side, and tapered spigot on the other side. The length of each pile can be adapted to the actual ground conditions. The upper most pipe section is cut with a standard pipe cutting saw and then fitted with its own driving shoe for use as the first pipe section for the next pile, thereby minimizing waste. End-bearing piles are filled with concrete/grout after driving creating a continuous load bearing structural member. Friction-bearing piles are grouted simultaneously to driving, both through the interior of the pile and along the exterior annulus to provide both the required frictional resistance and excellent protection against corrosion. The driven ductile iron piles represent a proven and economical alternative for driven micropiles with the following primary advantages: low mobilization cost; rapid installation up to 400 meters (1300 feet) per day utilizing lightweight and easily manoeuvrable equipment; robust (i.e. impact resistant) piles; and high corrosion resistance.
Driven Ductile Iron Pipe Piles: Design, Installation, and Performance
The driven ductile iron pile system is a simple and economical driven foundation system, requiring only a medium sized excavator equipped with a hydraulic, breaker-type driving hammer and a specially fabricated driving shank. The pipe material is centrifugally-cast ductile iron, with decades of proven success in underground applications, and which has excellent tenacity, ductility, strength, and corrosion resistance properties. The individual pipe sections, 5 m (16.4 ft) in length and outside diameter of either 118 mm (4.6 in) or 170 mm (6.7 in), are joined together via a conical bell end on one side, and tapered spigot on the other side. The length of each pile can be adapted to the actual ground conditions. The upper most pipe section is cut with a standard pipe cutting saw and then fitted with its own driving shoe for use as the first pipe section for the next pile, thereby minimizing waste. End-bearing piles are filled with concrete/grout after driving creating a continuous load bearing structural member. Friction-bearing piles are grouted simultaneously to driving, both through the interior of the pile and along the exterior annulus to provide both the required frictional resistance and excellent protection against corrosion. The driven ductile iron piles represent a proven and economical alternative for driven micropiles with the following primary advantages: low mobilization cost; rapid installation up to 400 meters (1300 feet) per day utilizing lightweight and easily manoeuvrable equipment; robust (i.e. impact resistant) piles; and high corrosion resistance.
Driven Ductile Iron Pipe Piles: Design, Installation, and Performance
Schmidt, Frank (author) / Dobras, Thomas N. (author)
International Foundation Congress and Equipment Expo 2009 ; 2009 ; Orlando, Florida, United States
Contemporary Topics in Deep Foundations ; 295-302
2009-03-10
Conference paper
Electronic Resource
English
Driven Ductile Iron Pipe Piles: Design, Installation, and Performance
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