EEMUA 183 : 2011

Foreword
1. Introduction and Scope
2. Tank Foundations: General
   Design Considerations
3. Tank Bottoms: Designs
4. Main Causes of Tank Bottom
   Leakage
5. Inspection Records and Techniques
6. Other Measures for Preserving the
   Integrity of Tank Bottoms
7. Systems for Detecting Leakage and
   Minimising Soil Pollution
8. Condition Monitoring and Maintenance
9. Main Conclusions and Recommendations
Appendix I - Soil Improvement by
             Ground Replacement
Appendix II-1 - Sand for Soil Replacement
Appendix II-2 - Sand for Tank Foundation
Appendix II-3 - Crushed Stone (20/40) for
                Crushed Stone Ring
Appendix II-4 - Crushed Stone (2/6) for
                Crushed Stone Ring
Appendix III - Protective Layer Product
Appendix IV - Mixtures of Sand and Bitumen
              for Tank Foundations
Appendix V - Wet Sand for Tank Foundation
             Shoulders
Appendix VI - Examples of Tank Foundation
              Construction
Appendix VII - Typical Foundation Sectional
               Drawings (Figs I-1 to I-3)
Appendix VIII - Tank Records Flow Chart
Appendix IX - Measures for Preventing or
              Containing Bottom Leakage
Appendix X - Evaluating and Establishing
             Repair Requirements
Appendix XI - Examples of Double Bottoms
Appendix XII - Flow Chart to Assess
               Inspection and Monitoring Tasks
References

Specifies the bottoms of vertical cylindrical steel storage tanks used for oil and chemical products are the most vulnerable part of the structure.