Main Conference

An update on basement legislation, codes and new guidance: focus on waterproofing

• What effect has the use of EC7 had on design?
• Outlining the updates that are needed to bring guidance and codes in line with EC7, including:
• CIRIA guide ‘C580 Embedded retaining walls’
• IStructE guidance “Design and construction of deep basements including cut-and-cover structures”
• Implementing the new BS8102 – what changes have been made to the waterproofing standard?
• Understanding which waterproofing system to use on your project – the requirements based on building use.  How should waterproofing be specified?
  

Controlling ground movements to protect adjacent buildings

• Predicting ground movements arising from excavations
• An update on the criteria for determining acceptable movements and distortions to avoid damage to different types of building
• Controlling ground movements on a restricted city centre site
• Evaluating the stability of buildings in soft clays and UK consolidated clays
  

Question and answer session

Morning refreshments

Walling technologies - how to select the right type of construction

• An overview of the walling technologies available, including:
• Secant pile walls
• Diaphragm walls
• Steel sheet piles
• Soil mix walls
• Soil nail walls
• Which technologies work best in different ground conditions?
• Understanding the use of sheet pile walls for basements - a sustainable solution that can be removed and reused
• Exploring the consequences of jetting and pre-auguring to ease sheet pile installation
• Considering the cost, stability and movements of walls from different case histories
  

CASE STUDY: Overcoming the design and construction challenges for the Crossrail Canary Wharf Station

• Designing the construction of a deep basement in the middle of a very built up area  - understanding the impact on, and protection of, adjacent structures
• Analysing structures – lessons learned from numerical modelling in the design stage.
• Considering ground movement prediction and limits – how closely do the analytical models match the real behaviour?
  

Question and answer session

Five minutes of fame

Your chance to present innovative basement solutions and share the lessons learned… but after 5 minutes, the whistle blows and you must stop.

In this fast-paced session, you will see numerous solutions to various geotechnical challenges.

Email ge-fame@emap.com with a 200 word summary of the project details in order to register your interest in participating in this session.

Networking lunch

PRODUCT SHOWCASE

Using fibre optics as a new instrumentation technique in basements

• Why is monitoring needed?
• Developing fibre optic techniques as an inclinometer replacement
• How do these techniques work?
• Commercialising fibre optic instrumentation solutions
  

CASE STUDY: Temporary works – value engineering through load monitoring

• Outlining the advantages of getting the contractor involved at an early stage to be an integral part of the temporary works solution – ensuring an efficient programme
• Understanding how monitoring can lead to value engineering opportunities and a reduction in safety factors
• Monitoring load and deflection in temporary structures – an update on work done to date
• Looking at a live monitoring feed from a project to understand the thermal effects
  

Exploring new sustainable construction techniques for diaphragm walling in an urban context

• Understanding sustainability requirements with respect to diaphragm walling in urban context
• Exploring new approaches and new equipment to reduce the environmental impact 
• Outlining examples of applications on recent projects
  

CASE STUDY: Integrating geothermal into the diaphragm walls of the Knightsbridge Palace Hotel project

• An overview of the project and the final design solution
• What were the reasons for using closed loop geothermal in the diaphragm walls – outlining the benefits
• Highlighting the design challenges
• Understanding the effect of a geothermal system on the properties of the wall
  

Question and answer session

Afternoon refreshments

PANEL DISCUSSION: Exploring the reasons for geotechnical failures and how to avoid them

• Looking for early warning signs of impending problems and measurements that give rise for concern
• Exploring the role of design responsibility ownership and effective communication of the design in preventing failures
• Considering the place for independent review
• Understanding the relationship between safety and risk management
• Ensuring good quality of construction
  

CASE STUDY: Amsterdam Metro North-South Line – an update on the data obtained and lessons learned

• An update on the deep stations as part of the overall metro project
• Exploring the reasons for leakage of the diaphragm wall
• Proceeding with the work after the settlement had occurred
• Learning the lessons for construction of diaphragm walls
• Avoiding future failures
  

Question and answer session