PREN 1536 : DRAFT 2008

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Information needed for the execution of the work
   4.1 General
   4.2 Special features
5 Geotechnical investigation
   5.1 General
   5.2 Specific requirements
6 Materials and products
   6.1 Materials
       6.1.1 General
       6.1.2 Bentonite
       6.1.3 Polymers
       6.1.4 Cement
       6.1.5 Aggregates
       6.1.6 Water
       6.1.7 Additions
       6.1.8 Admixtures
   6.2 Support fluids
       6.2.1 Bentonite suspensions
       6.2.2 Polymer solutions
   6.3 Concrete
       6.3.1 General
       6.3.2 Aggregates
       6.3.3 Cement
       6.3.4 Water and water/cement ratio
       6.3.5 Admixtures
       6.3.6 Fresh concrete
       6.3.7 Production of Concrete
       6.3.8 Sampling and testing on site
   6.4 Grout
   6.5 Reinforcement
7 Design related considerations
   7.1 General
   7.2 Piles forming a wall
   7.3 Excavation
   7.4 Precast concrete elements
   7.5 Reinforcement
       7.5.1 General
       7.5.2 Longitudinal reinforcement
       7.5.3 Transverse reinforcement
       7.5.4 Concrete cover
       7.5.5 Reinforcement tubes and sections
8 Execution
   8.1 Construction tolerances
       8.1.1 Geometrical tolerances
       8.1.2 Reinforcement installation tolerances
       8.1.3 Bored pile trimming tolerances
   8.2 Excavation
       8.2.1 General
       8.2.2 Methods and tools
       8.2.3 Excavations supported by casings
       8.2.4 Excavations supported by fluids
       8.2.5 Boring with continuous flight augers
       8.2.6 Unsupported excavation
       8.2.7 Enlargements
   8.3 Reinforcement
       8.3.1 General
       8.3.2 Joints
       8.3.3 Bending of reinforcement
       8.3.4 Assembly of cages
       8.3.5 Spacers
       8.3.6 Installation
   8.4 Concreting and trimming
       8.4.1 General
       8.4.2 Concreting in dry conditions
       8.4.3 Concreting in submerged conditions
       8.4.4 Extraction of casings
       8.4.5 Permanent casings or linings
       8.4.6 Concreting of continuous flight auger piles
       8.4.7 Prepacked piles
       8.4.8 Loss of immersion of termie or casing
       8.4.9 Bored piles containing precast concrete elements,
              reinforcement tubes or permanent casings
       8.4.10 External grouting of bored piles
   8.5 Pile walls
9 Supervision and monitoring
   9.1 Supervision
   9.2 Monitoring of bored pile construction
   9.3 Bored pile testing
       9.3.1 General
       9.3.2 Axial loading tests
10 Records
11 Special Requirements
Annex A (informative) - Glossary
Annex B (informative) - Examples of the details and frequencies
        for the monitoring
Annex C (informative) - Sample records
Annex D (informative) - Bibliography provisions
Annex E (informative) - Obligation of the provisions

Provides general principles for the construction of bored piles.