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BS 8004:2015+A1:2020 Code of practice for foundations, 2020
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms, definitions and symbols
- 4 General rules [Go to Page]
- 4.1 Choice and design of foundation
- 4.2 Basis of geotechnical design
- 4.3 Materials
- Figure 1 — Suggested values for characteristic weight density of soils above the groundwater table
- Figure 2 — Suggested values for characteristic weight density of soils below the groundwater table
- Table 1 — Values of φ’ang, φ’PSD and φ’dil to obtain values of φ’pk,k and φ’cv,k for siliceous sands and gravels with fines content not exceeding 15%
- Table 2 — Values of φ’cv,k for fine soils from plasticity index
- Figure 3 — Stiffness parameters for non‑linear soil
- Table 3 — Values of parameters for use with equation (12)
- Table 4 — Values of parameters for use with equation (13)
- 4.4 Durability
- Table 5 — Use classes relevant to timber in foundations
- 4.5 Geotechnical analysis
- 4.6 Ultimate limit states
- 4.7 Serviceability limit states
- 4.8 Structural design
- 4.9 Execution
- 4.10 Testing
- 4.11 Supervision, monitoring, and maintenance
- 4.12 Reporting
- 5 Spread foundations [Go to Page]
- 5.1 Choice and design of spread foundations
- Table 6 — Some key features of spread foundations
- 5.2 Actions and design situations
- 5.3 Design considerations
- 5.4 Calculation models
- 5.5 Materials
- 5.6 Durability
- 5.7 Ultimate limit state design
- 5.8 Serviceability limit state design
- 5.9 Structural design
- 5.10 Execution
- 5.11 Testing
- 5.12 Supervision, monitoring, and maintenance
- 5.13 Reporting
- 6 Pile foundations [Go to Page]
- 6.1 Choice and design of pile foundations
- Table 7 — Classification of piles according to ground disturbance caused by installation
- 6.2 Actions and design situations
- 6.3 Design considerations
- 6.4 Calculation models
- Table 8 — Suggested values of Ks for piles installed in coarse silica soils
- Table 9 — Suggested values of kδ for piles installed in coarse soils
- Table 10 — Suggested values of k2 for piles installed in fine soil
- Table 11 — Values of the empirical coefficients cs and cb,0.1 according to soil and pile type
- Table 12 — Values of the empirical coefficients ns and nb,0.1 according to soil and pile type
- Figure 4 — Calculation model for downdrag
- Table 13 — Suggested values of the coefficients k1 and k4 for piles installed in rocks
- 6.5 Materials
- 6.6 Durability
- 6.7 Ultimate limit state design
- 6.8 Serviceability limit state design
- 6.9 Structural design
- Table 14 — Design pile diameter for cast‑in‑place piles without permanent casing
- 6.10 Execution
- 6.11 Testing
- 6.12 Supervision, monitoring, and maintenance
- 6.13 Reporting
- Annex A (normative) Helical steel pile foundations
- Annex B (normative) Underpinning
- Annex C (informative) Specific Formations
- Annex D (informative) Archaeological finds
- Bibliography [Go to Page]