For a damage-free construction of structures the applied force – weight of the structure – must be countered with an opposite force, stability of the subsoil. It must be noted that the load transfer, hence the absorption of forces, is always associated with movements in the subsoil.
The load transfers in the transport areas are not static but rather dynamic, thus they occur in recurring alternation of stresses and stress-relief. Example of this is the road network with its rolling car and truck traffic and parking spaces, airports and port areas.
As opposed to a static load, in case of rolling vehicles the loads are not only vertically but proportionally, obliquely introduced into subsoil in the direction of the travel depending on speed.
The guidelines for the standardisation of the superstructure of transport areas (RStO) with their load classes form the basis for the required construction methods. Fundamental requirements for the materials used and the individual layers according to the Additional Technical Contract Conditions apply to all construction methods. The load-bearing system as a whole is to be calculated for a useful life of 30 years (BASt).
We provide appraisal of the routes for load bearing capacity and required foundation works for new construction of transport areas. In addition to conventional techniques such as drilling and dynamic probing, sensory processes such as radar or the INN technology are particularly suitable for this purpose, since not selective but rather profile faithful route bands are evaluated.
For quality control during the construction phase, for guarantee approvals and damage evaluation after completion, sensory methods are particularly suitable for a comprehensive and non-destructive analysis in addition to conventional methods.