Falconbrook Pumping Station Interception Chamber: The westerner site of the Central Contract is one of the most complex in terms of interfaces with existing thamess. The Falconbrook interception structure will receive a flow of 22 m3/s from three existing major storm channels that are currently pumped into the river by the existing pumping station during the storms. An 18 m deep reinforced concrete chamber is to be built for the number 1 low-floor canal, which requires the installation of robust temporary work to transport flows during the construction phase. The chamber is installed in a temporary select pile box with complex poles to minimize the risk of damage to adjacent critical sieve water facilities located less than one metre from the excavation. On the site are the historic foundations and cellars of a former pumping station, as well as the infrastructure of the most recent pumping station built in the 1960s. During the investigation, contaminated groundwater and piles of historical palpitations were found at the listening chamber site, requiring a design review to accommodate these additional constraints. BiM modeling of the TBM: BIM and virtual reality (VR) models of the TBM and the construction sites was carried out in order to allow a better understanding of the constraints of workstations and to train the staff before they enter the environment of building live tunnels. FLO JV collaborated with The Hobs 3D Visualization Specialist to develop an inexpensive, interactive and accessible site training and induction process. With gaming industry software and a stereoscopic screen, Hobs 3D has created an interactive virtual group experience that offers users a high-fidelity induction into the hazardous environment.
The original CAD data was extracted from the Revit files and optimized to meet real-time viewing needs. With a simple tablet interface, which communicates via a closed Wi-Fi network, the course leader can guide users through the virtual workspace. Tideway estimates that the system, funded in part by the government agency Innovate UK, could result in a 20% reduction in training time, a 10% reduction in the number of accidents and near misses, and staff understanding of risks and risks on the ground. Geology: While the West Contract section of the main tunnel is mainly located in London Clay and the East Contract section of Chalk, the Central Section covers a number of soil conditions, with sand and gravel being important elements. Geology passes from west to east through the London Clay in the Lambeth Group complex, where layers of clay, sand and gravel are superimposed on many hard layers of mud, limestone, sandstone and limestone concrete. In the suite of the tunnel, it flows for a short time into the sands of Thanet, where sandy and muddy deposits are found with the cobblestones of the Bullhead beds, before giving way to chalk and flint.
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