pile driving

Pile Installation & Driving By Desmond D’sa

Table Of Contents

Introduction Components

Piles. Lifting Tools. Hammers.

Installation Checks GRL WEAP Assessment of Pile Stick-up Length. Pile Upending Check. Stabbing Guide Check. Pile Stopper Check.

Introduction

What is a Pile?

What do we mean by pile driving?

Introduction

Importance of Piling

On-Bottom Stability.

Resilience to lateral loading.

Components - Piles

Jacket Leg Skirt Pile

Components - Piles

Contingency Piles

Insurance Piles. Damage. Shortage.

Insert Piles. Refusal. Annulus Grouting.

Chaser Piles.

Components – Lifting Tools

Padeyes.

Internal Lifting Tool & Belly Support Sling.

Components – Hammers

Steam Hammer Hydraulic Hammer

Installation Checks – GRL WEAP

Hammer.

Driving Stress.

Blows / Unit Depth.

Time Required.

Installation Checks - Assessment of Pile Stick-up Length

Criteria for Pile Stick-up Length

Static Stress + Dynamic Stress < Yield Stress Dynamic Stress < 90% of Yield Stress

Static Stress = Bending Moment + Weight of Hammer

Soil Conditions.

Cut off Allowances.

Barge Length.

Installation Checks - Assessment of Pile Stick-up Length

Actual Stick-Up Length

Installation Checks - Assessment of Pile Stick-up Length

Inputs:

Installation Checks - Assessment of Pile Stick-up Length

Inputs:

Installation Checks - Assessment of Pile Stick-up Length

Outputs

Installation Checks – Pile Upending Checks

Inputs:

If Belly Support is required

Installation Checks – Pile Upending Checks

Outputs:

Installation Checks – Stabbing Guide Checks

Inputs:

Installation Checks – Stabbing Guide Checks

Inputs:

Installation Checks – Stabbing Guide Checks

Outputs:

Installation Checks – Pile Stopper Check

Inputs:

Installation Checks – Pile Stopper Check

Inputs:

Installation Checks – Pile Stopper Check

Inputs:

Outputs:

The End

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