Construction method for an underground structure
FR3170529A1Pending Publication Date: 2026-06-26SOLETANCHE FREYSSINET SAS
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Patent Information
- Application Number
- FR2024015211
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-06-26
Abstract
Method for constructing an underground structure. Method for constructing an underground structure, in particular a tunnel segment, using at least one prefabricated caisson (10; 20), comprising the steps of: Constructing pre-support with at least upper reinforcing tubes (31) arranged above an excavation zone; Progressively excavating the ground in the excavation zone in front of the prefabricated caisson; Progressively driving the prefabricated caisson into the ground as excavation progresses, with adjustable-height sliding lower supports (90) interposed between the prefabricated caisson and the floor of the excavated cavity. Figure for the abstract: Fig. 3
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Citation Information
Patent Citations
Plant for producing an elongate structure
EP0278078A1
Underground structure construction method and concrete box used therein
JP2023174120A
SG10201704749a
SG10201901625a