Manageable Complexity – BIM and Risk-Based Construction Controlling in Tunnelling

Four out of five major projects are not completed within the planned time and the budgeted costs. The reasons for this great uncertainty lie in the lack of integration of a quantitative risk analysis (QRA) and the duty of documentation laid down in BIM. Although the BIM standards specify this, both risks and the chances arising in the course of construction are seldom documented. This leads to incorrect estimates and ad-hoc assumptions cumulating over the construction period. One solution is to integrate the BIM duty of documentation and the QRA into risk-based construction controlling. The rapidly developing BIM processes using laser scan technology can also help to improve construction documentation and the controlling of costs, time and progress. The effects of the described procedure in BIM and risk-based construction controlling effectively reduce risks, improve cost transparency and thus ensure the intended return of the overall project.

Complexity in Tunnelling

In modern tunnelling, numerous requirements are imposed in the phases of design, construction and operation. From the start, it is necessary to harmonise the premises of site management, coordination and technology due to the complexity of tasks and organisation
(Fig. 1).

The client wants to implement the project within the projected cost and time framework and provide for high standards of quality and safety. Construction companies on their side have to keep costs low and bear numerous geological and construction risks. On many major tunnel projects, harmonising these...

Related articles:

Issue 08/2009 Risk Management in Tunnelling

Risk Management in Tunnelling

Tunnelling as a very special and sophisticated branch of the engineering sciences is characterised by high risks during project execution. In particular tunnelling in residential areas involves...

more
Issue 06/2021 Risk Management in Major Tunnelling Projects – Part 2

Digital Project Risk Twin – Application for the Construction of U5 East, Hamburg

1 Introduction In the first part, „Risk Management in Major Tunnelling Projects – Part 1: Fundamentals and Success Factors“, the relevance of transparent cost and risk management for large...

more
Issue 02/2014 Monitoring

Data management and risk analysis for tunnelling projects

The execution of underground works requires an assessment of all risks during the planning phase and its comprehensive control during construction to establish acceptable levels of security. This is...

more
Issue 01/2024

Risk Management and Contract Models in Tunnel Construction – Part 1: Basics of Risk Management

1 Introduction Risk management is a project management task in which the opportunities and risks of a project are identified, analyzed, evaluated and monitored. Project-specific risk management is...

more
Issue 07/2009

Risk Management in Tunnelling

Tunnelling as a very special and sophisticated branch of the engineering sciences is characterised by high risks during project execution. In particular tunnelling in residential areas involves...

more