Origin

In order to separate the factual data from the investigation phases, the analysis/interpretation documents and the design documents, the AFTES (French Tunnelling and Underground Space Association), initially instituted in the recommendation GT32R1F1 of 2004 (then in the recommendation GT32R3F1 of 2016 which abrogates GT32R1F1), the structuring of the Tendering Documents, around three successive sub-folders or "books", using the results of the previous one.

Definition

Book A: Factual data

Factual Data Collection: This is a non-binding compilation of project-specific data and results. It is further divided into three sub-books:

• A1: Geotechnical input data,
• A2:Input data for neighbouring buildings,
• A3: Input data natural and human environment.

Its organization and composition is described here: https://github.com/opengeospatial/Geotech/wiki/Book-A-organization-and-components

Book B: Models and their components

Geotechnical report: this contractual document gives the interpretation of the project manager on the whole of the data of the book A. It is also sub-divided into three sub-books:

• B1: Geotechnical synthesis memorandum,
• B2: Sensitivity memorandum for neighbouring constructions,
• B3: Comments on environmental constraints.

Each book B1, B2 and B3 ends with a register of uncertainties.

Its organization and composition is described here: https://github.com/opengeospatial/Geotech/wiki/Book-B-organization-and-components

Book C: Design report

Design brief: this explanatory and non-contractual document produced by the project manager explains and justifies the design of the civil engineering works, the execution methods and the sizing of the works.

Its organization and composition is described here: https://github.com/opengeospatial/Geotech/wiki/Book-C-organization-and-components