Course Overview
The purpose of this one-day training course is to educate pipe stress engineers and analysts, pipeline regulators, mechanical engineers, and non-geotechnical engineers regarding general principles of soil mechanics and geological hazards as they relate to the design and stress analysis of pipelines. In addition, this training course will appeal to geotechnical engineers who need to understand the subtleties between traditional geotechnical engineering and pipeline geotechnique. In many cases, communication between the pipe stress team and geotechnical engineers is weak and complicated by miscommunications and misunderstanding of technical terms on both sides. Following this course, participants will have a strong grasp of basic geotechnical definitions and soil mechanics and will understand how the equations used to develop soil springs and yield displacements are derived from geotechnical and foundation engineering analogies. Stress engineers will understand the issues and limitations of soil mechanics as they relate to pipe stress analysis and be able to communicate with geotechnical engineers on an informed level.
Agenda
1. Soil classification and definitions
- ASTM D2487/ASTM2487/GT50021
- Other classification systems, (e.g., Eurocode, SNiP/GOST)
- Definitions and descriptions
- Soil laboratory tests
- Typical soil properties
- Effect of ground water and pore water pressures
2. Geotechnical Investigations for pipeline design and analysis
3. Soil – pipeline interaction scenarios
- Ground movement events
- Lateral spreading (liquefaction) and sensitive soils
- Upheaval buckling
- Frost heave and thaw settlement
- Thermal expansion issues
4. Soil strength testing and interpretation
- Effective stress principle
- Drained versus undrained strengths
- Effective stress versus total stress strengths
- Soil tests and deformation plots
- Mohr Circles and stresses
- Strength correlations to soil index properties
- Strength of peat and organic deposits
5. Pipeline deformation scenarios
- Examples of soil-pipe interactions
6. Maximum soil strength derivation and soil pipe interaction relationships
- Strength and deformation relationship development
- Maximum soil strength and yield displacements
- Bilinear versus hyperbolic soil strength-displacement relationships
- Spring constants
- Special consideration for organic deposits and peat soils
7. Soil-Pipe Interaction Considerations
- Conservatism in soil parameter selection
- Unsaturated soil mechanics and pipeline interaction
- Deep burial (HDD) installations
- Settlement over HDD installations
- Effect of trench width
- Effect of backfill properties
- Pipelines on slopes
- Applied Delta-T and lock-in temperatures
- Soil-pipe loading rate effects – drained versus undrained soil loading
8. Monitoring and Mitigation
9. Summary and key messages
Target Group
Pipe stress engineers/ analysts, and mechanical and pipeline engineers who use geotechnical information in the design and analysis of pipelines; geotechnical engineers who support pipeline design. Geotechnical engineers working on pipeline design projects, including design and operations. Regulators and other stakeholders who want to understand how pipelines and soil interact.
HRD Corp Claimability
This training course is HRD Corp claimable for eligible Malaysian employers. Companies registered with HRD Corp may apply for training grants to offset approved training costs, subject to HRD Corp terms and conditions. Please note that the employer grant approval must be obtained at least 14 days prior to the training commencement date. We recommend early planning to ensure timely approval and participation.
