D-Foundations



In the 1930s, Deltares started the development of the Cone Penetration Test (CPT) to measure cone resistance, as well as skin friction along the friction sleeve near the cone. These properties are ideal for the design of piled foundations and It is impossible to imagine soil investigations in soft soil countries without the “Dutch Cone” test. Based on CPT test results, calculation techniques and design codes have been developed for the design of piled foundations in The Netherlands and Belgium. Since 1990, Deltares has been involved in the development of foundation design software. This has resulted in design and verification software for bearing piles, tension piles and shallow foundations. Previous releases of D-Foundations were called MFoundation.

D-Foundations follows the Eurocode 7 and the Dutch and Belgium National Annexes. First D-Foundations is used to create and optimize a design. In this process, automatic optimization options assist the user to efficiently create and fine-tune a design. Once the design is finished D-Foundations can perform a design code check resulting in a detailed report for the given situation. The ability to overrule and redefine various design code parameters allows D-Foundations to be used by engineers for specialized calculations using user defined foundation types and factors. Some specific features in D-Foundations are:

  • Soil data definition
    D-Foundations requires input data from Cone Penetration Tests (CPT). Importing CPT data is possible in several formats, including the Geotechnical Exchange Format (GEF) and the format used by the Database Ondergrond Vlaanderen (DOV). Besides using GEF-files, CPT’s can be imported directly from the Dutch DINO database by TNO. The automatic CPT interpretation tool provides soil-type dependent proposals, including design code based parameter proposals.
  • Preliminary design of piles
    D-Foundations provides simultaneous results of bearing capacity and required length for different pile types and different soil conditions.
  • Pile group interaction
    In calculations, the effect of pile group interaction on settlement is included as well as on bearing capacity for the selected pile type and pile plan.
  • Design of shallow foundations
    Foundation dimensions can be optimized. In addition, the required width for strip foundations and the capacity and stability of shallow foundations can be checked.
  • Code-based verification
    A complete verification report can be generated in Dutch and English.
  • Standard parameters
    All standard parameters provided by Eurocode 7 (such as soil parameters and pile type parameters) are incorporated within D-Foundations for easy and fast selection.

 

Bearing-capacity-versus-depth-for-several-pile-types-and-CPTs_570x366_acf_croppedBearing capacity versus depth for several pile types and CPT’s

D-Foundations requires the input of digitized CPT’s which are now widely available. For a full 3D analysis of piles and pile groups including pile interaction under vertical as well as horizontal loading, Deltares offers the D-Pile Group software. D-Pile Group follows the American Petroleum Institute (API) standard.

 

How to obtain D-Foundations

Service Packages

The latest fully validated release is D-Foundations 17.1. This version is available if you have purchased a Service package. You can order a Service package via our Software sales Service team (software@deltares.nl). The software can be downloaded via our Download portal. You don’t need a license file to do this. You can use the software in Demo mode without a license file.
By purchasing a Service package you will receive a license file to unlock full functionality (according to purchased package). Our Software sales Service team will provide you with instructions on how to get the software working with a license file.

Online Software

You can also use our Geotechnical software products via the internet (Software as a Service – SaaS), on subscription basis. For more information, please see Online Geotechnical Software.