Abstract: Portable equipment for optimization of a visual inspection and expert appraisal of a structure, particularly in civil engineering, includes an on-board database of visual references for decay in different states of advancement and computing elements for calculation, by interpolation of data from a database of results from predictive physical simulations of materials and structures, of indicators of deterioration and key aging parameters to represent several possible visual appearances of an element of the structure in different stages of the life thereof from reference images from the database of visual references and categorization of the state of the structure by comparison with the actual appearance.

Abstract: A method for identifying the risk of failure of a geological confinement system (10), includes the following steps: acquiring data concerning the system; based on said data concerning the system, breaking down the system into a plurality of components (11-17); modelling at least one component by at least one volume (131-134), the modelling being performed by discretizing in volume the component; generating at least one failure scenario of the system, the generation including at least one iteration of the following steps: analyzing a state of at least one volume modelling at least one component of the system; detecting, based on the state of the volume, at least one potential failure mode of the volume. The inventive method and system enable the risks of failure of any system of geological confinement, natural and/or artificial, in particular oil tanks used for storing CO2, to be identified.

Abstract: A method for identifying the failure risks of a confinement building, in particular a confinement building made of concrete for stocking or storing a product, includes the following steps: from data concerning the building and/or the product, determining a planned theoretical behaviour of the building during the filling phase of the building with the product to be stored; determining a real behaviour of the building during the filling phase of the building with the product; and determining the failure risks by comparing the theoretical and real behaviours. The method of the invention can also be applied to an emptying phase of the confinement building.

Abstract: A method and system for monitoring the performance of a pipe containing a pressurised fluid. The pipe is made up of at least one current zone and singular zones. A predetermined number of singular zones are monitored, in order to obtain circumferential expansion information; and the calculation of the effective stiffness of the pipe and of the measured residual steel section of the pipe, using this circumferential expansion information. The pipe is dynamically monitored, in order to obtain information relating to the natural vibration frequencies and modes thereof. The information thus gained indicates whether a maintenance operation need be performed on the pipe.

Abstract: A method of monitoring the performance of a pipe containing a pressurised fluid, the pipe including at least one current zone and singular zones. The method includes: the static monitoring of a pre-determined number of singular zones, in order to obtain circumferential dilatation information; and the calculation of the effective stiffness k(ti) of the pipe and of the measured residual steel section (As(ti) of same, using the above-mentioned circumferential dilatation information. The method can also include the dynamic monitoring of the pipe, in order to obtain information relating to the natural vibration frequencies and modes thereof.

Abstract: Portable equipment for optimization of a visual inspection and expert appraisal of a structure, particularly in civil engineering, includes an on-board database of visual references for decay in different states of advancement and computing elements for calculation, by interpolation of data from a database of results from predictive physical simulations of materials and structures, of indicators of deterioration and key aging parameters to represent several possible visual appearances of an element of the structure in different stages of the life thereof from reference images from the database of visual references and categorization of the state of the structure by comparison with the actual appearance.