Description: Whenever an excavation is made below the water table, there is a risk that it will become unstable or flood unless measures are taken to control the groundwater in the surrounding soil. This publication provides information and guidance on pumping methods used to control groundwater as part of the temporary works for construction projects. Subjects covered include: potential groundwater problems; groundwater control techniques; safety, management and contractual matters; legal and environmental aspects when groundwater is pumped and discharged; site investigation requirements; and design methods for groundwater control schemes. The report explains the principles of groundwater control by pumping and gives practical information for the effective and safe design, installation and operation of such works. Groundwater control: design and practice uses case studies, datasheets and numerous figures, with extensive cross-references to help readers. Superseding CIRIA Report 113, this entirely new guidance will be valued by civil and geotechnical engineers, temporary works designers and planners involved in the investigation, design, specification, installation, operation and supervision of projects where groundwater control may be required.

Keywords: ground engineering, soil-structure interaction, ground investigation and characterisation, flooding.

Contents: 1 Groundwater in construction, 2 Surface and groundwater control methods, 3 Operation and management, 4 Environmental matters, 5 Site investigation requirements, 6 Analysis and design, 7 From design to practice, References, Data sheets