EP 4041961 A1 20220817 - PREFABRICATED COMPRESSIBLE BUILDING BLOCK WITH VOIDS, THAT CAN BE INTEGRATED INTO GALLERY LININGS BY TRADITIONAL METHODS OR BY TUNNEL BORING MACHINE METHOD
Title (en)
PREFABRICATED COMPRESSIBLE BUILDING BLOCK WITH VOIDS, THAT CAN BE INTEGRATED INTO GALLERY LININGS BY TRADITIONAL METHODS OR BY TUNNEL BORING MACHINE METHOD
Title (de)
VORGEFERTIGTER KOMPRIMIERBARER BAUBLOCK MIT HOHLRÄUMEN, DIE NACH HERKÖMMLICHEN VERFAHREN ODER DURCH TUNNELBOHRMASCHINENVERFAHREN IN STOLLENAUSKLEIDUNGEN INTEGRIERT WERDEN KÖNNEN
Title (fr)
BLOC DE CONSTRUCTION COMPRESSIBLE A VIDE PREFABRIQUE, POUVANT S'INTEGRER DANS LES REVETEMENTS DE GALERIES PAR METHODES TRADITIONNELLES OU PAR METHODE AU TUNNELIER
Publication
Application
Priority
- FR 1911093 A 20191007
- FR 2020051754 W 20201007
Abstract (en)
[origin: WO2021069830A1] The invention relates to a prefabricated compressible building block (1) having elasto-plastic behaviour having an elastic threshold of between 1 and 2 MPa and a plastic plateau of the order of 40 to 75% deformation at a non-zero load and maximum of 4 MPa, the block comprising longitudinal channels (2) having a first open end, the channels (2) defining voids occupying 40 to 75% of the total volume of the building block. The invention also relates to an arch stone having an extrados covered with a building block or with a plurality of such building blocks as described.
IPC 8 full level
CPC (source: EP)
Citation (search report)
See references of WO 2021069830A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3101650 A1 20210409; FR 3101650 B1 20211001; EP 4041961 A1 20220817; EP 4041961 B1 20230719; EP 4041961 C0 20230719; WO 2021069830 A1 20210415
DOCDB simple family (application)
FR 1911093 A 20191007; EP 20793754 A 20201007; FR 2020051754 W 20201007