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Chapitre D'ouvrage Année : 2022

Monitoring of the rock mass deformation under the Pont du Gard pier VII foundation

Résumé

The Pont du Gard is a Roman aqueduct bridge built around 50 AD to ensure the crossing of the Gardon river by an aqueduct supplying the city of Nîmes (France). Located be- tween piles VII and VIII, the minor bed of the Gardon forms a deep channel whose possible in- stability of its flanks has long attracted attention. Two instrumented rock bolts were sealed in the rock foundation of the pier VII and were monitored for several years. This auscultation re- veals some deformations of the rock under the effect of atmospheric temperature. But small events seem to be assigned to the variation of the water temperature during Gardon floods. The site, the instrumental set-up and the main results of the auscultation are described in this paper.

Dates et versions

hal-04166939 , version 1 (20-07-2023)

Identifiants

Citer

J.F. Serratrice. Monitoring of the rock mass deformation under the Pont du Gard pier VII foundation. Geotechnical Engineering for the Preservation of Monuments and Historic Sites III, 1, CRC Press, pp.469-480, 2022, ⟨10.1201/9781003308867-32⟩. ⟨hal-04166939⟩

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