Geotechnical Investigation

What are the Goals?

The training course will cover the techniques of soil test and geotechnical investigation in general, with specific focus on geotechnical investigation of offshore structures. It will also assist participants in defining scope of work for geotechnical study. The methods of laboratory and site tests will be presented during the course theoretically and through videos.

Who is this Training Course for?

This training course is suitable to a wide range of professionals but will greatly benefit:

• Structural Engineers
• Civil/Construction Engineers
• Project Engineers
• Engineering Managers

Daily Agenda

Day One: Introduction to Soil Mechanics

• Performing an Offshore Soil Investigation
• Bore hole specification and requirements
• CPT
• SPT
• Vane shear test
• Settlement Oedometer test
• Drilling Equipment and Method
• Wire-Line Sampling Technique
• General Design Considerations
• Basics design of fixed offshore platforms
• Topside load calculation and environment load factors in ISO
• Example of load calculation in different codes ISO 19902 , AISC LRFD,EC3, BS5950
• Platform optimum configuration
• Jacket framing pattern
• Calculation of forces in a tubular member
• Load calculation on the pile
• Soil structure interaction

Day Two: Pile Design

• P-y, t-z and Q-Z curves concepts to be included
• Include drilled and grouted piles concepts and analysis
• Uplift capacity of the pile concepts
• Concept of steel Pile design
• Offshore Site Investigation
• Geotechnical Engineering for offshore structure
• Offshore Piles design philosophy
• Parameters of soil mechanics
• Basics of Earthquake and Seismic Analysis with API approach
• Axial Pile Performance
• Pile Capacity Calculation Methods
• Pile Capacity under Cyclic Loadings
• Fundamental Concepts and Case Studies for Laterally Loaded Piles
• Design of Pile Foundations for Axial Loading
• Calculation for estimating pile load
• Calculate the capacity of the pile
• Design Pile Stresses
• Pile calculation based on API RP2A

Day Three: Pile Derivability

• Stresses Due to Hammer Effect
• Minimum Wall Thickness
• Driving Shoe and Head
• Pile Section Lengths
• Pile drivability analysis
• Example of pile drivability analysis
• Evaluation of Soil Resistance to Driving (SRD)
• Unit Shaft Resistance and Unit End Bearing for Uncemented Materials
• Upper- and Lower-Bound SRD
• Results of Wave Equation Analyses
• Results of Drivability Calculations
• Recommendations for Pile Installation

Day Four: Mudmat and Stability Design

• Scour problem
• Example for calculation pile axial capacity from soil report
• Mud mat design
• Example of mudmat calculation
• On bottom stability analysis
• The data to receive from the geotechnical report
• Piles construction