by H Skinner, J A Charles and P Tedd (05-Dec-2005)
NOTE: THIS IS A DOWNLOAD - FOLLOW THIS LINK TO PURCHASE THE PAPER VERSION.
This report provides authoritative guidance on the investigation, treatment and foundation design for building development on brownfield and landfill sites. This integrated ground engineering strategy takes a risk based approach. Key aspects of the strategy - hazard assessment and risk mitigation - are discussed in detail.
The nature of brownfield hazards is explained, and critical outlines of the numerous ground treatment and remediation techniques are given, together with information on which decisions about treatment and remediation can be based.
The report is in five parts:
- An outline of a ground engineering strategy which includes risk management and the process by which the strategy is implemented.
- The ’receptors’ (human beings, the natural and built environments) affected by hazards in the ground, and the nature of the hazards themselves.
- Investigation and evaluation of hazards in the ground, and handling of risks.
- Risk mitigation measures.
- Ground treatment techniques.
The report concludes with case histories, summaries of relevant Acts and Regulations and official guidance, and a list of references (5 pages). It will be especially valuable for developers, designers, contractors, site investigation specialists and regulators. 78 pages.
Background to this report
Objectives of this report
Scope and structure of this report
2 Outline of ground engineering strategy
Ground treatment and remediation techniques
3 Brownfield hazards
Hazards associated with ground movements
Hazards from contaminants
Hazards to durability and serviceability of
Hazards from gas migration
Hazards from subterranean fires
4 Hazard assessment
Required ground behaviour
Conceptual ground model
5 Risk mitigation
Risk mitigation measures
Design and construction of foundations
Design and construction of services
6 Ground treatment and remediation techniques
Interaction of geotechnical and geoenvironmental
Vibrated stone columns
Vibrated concrete columns
Cover layers and containment barriers
Stabilisation and solidification
Excavation and disposal
Excavation and recompaction
Excavation and physical treatment
Leaching, washing and flushing
Soil vapour extraction and air sparging
7 Case histories
Importance of case histories
Popular perception of health hazard led to problems
in landfill remediation
Environmental concerns led to significant extra
Contamination identified at late stage
Ground treatment reduced settlement potential of
opencast mining backfill
Geoenvironmental hazards influenced choice of
geotechnical ground treatment
Automatic system to monitor gas migration
Mismatch of solutions for geotechnical and
geoenvironmental issues led to long term problems
Appendix A Regulations
Acts and regulations