Watch Production Center

The designed retaining system at the watch production center is composed of a slurry wall braced at its top. The bracing leans on a 130 m diameter circular reinforced concrete beam supported by piles that are linked with a buried circular internal slurry wall located at the excavation’s bottom.

Aim of monitoring:

The watch production center project aimed to monitor the load on the circular internal slurry wall; sensors were placed tangentially on the rebar cage before the concrete pouring. The Mat foundation was also monitored to control the thrusts of the external slurry wall.

Main results:

Circular internal slurry wall sensors show the strain was up to 3,5 N/mm2. Engineers saw the real evolution of the load during the excavation, monitoring the load transfers.

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