Pile Driving

Driven piles are columns made up of natural product or pre-fabricated material made to design for various loading in different shapes and sizes.  Piles are designed to take compression, tension or lateral load. Driven piles are used as displacement piles and normally environmentally friendly due to no removal of spoil.

Driven piles are installed by using impact hammers or vibratory hammers or screwed into the ground. The piles can be top driven or bottom driven.

Driven piles can be readily tested by static or dynamic testing.

These types of piles are useful in very soft ground conditions where a cast in situ pile might be subject to necking or in aggressive ground conditions which might otherwise attack cast in situ concrete.

A DRIVEN PILE IS A TESTED PILE

Types

• Driven timber piles – 150 – 400 SED H5/H6 grade
• Driven steel piles – H piles, PFC, UC sections, UB sections
• Driven precast concrete piles – square, circular, hexagonal, octagonal

Application

• Foundations – building, storage shed, silos
• Ground improvement
• Wet ground
• Quick construction
• Environmental limitations
• Temporary construction over waterways, temporary bridges

Projects

Project Name - Waimauku Village, Auckland
Project description Drill and place poles with concrete, drive poles, and install tiebacks to deadman to strengthen 100m long x 3.5m high timber retaining wall Machine used PD1200 pile driver & PC200 Special difficulties Working in conjunction with earthmoving contractor constructing new retaining wall for village shops.  Limited timeframe for completion of project

Project Name - Bridge Widening Abutments, Glenbrook
Project description Pile drive steel universal columns for bridge widening abutments.  Piles were spliced and driven to achieve design loading Machine used PD1200 driver Special difficulties Environmental issues – no contamination of stream

Project Name - Chonny Crescent, Manukau
Project description Drive 400mm square x 15m long precast concrete piles for under new silos Machine used PD6000 Special difficulties Piles were installed to carry specific loadings.  These were tested using a PDA unit giving an instant report showing actual results