![]() | HS2 railway bridge installed over busy Chilterns road in just one day (簡訳:HS2鉄道橋が交通量の多いチルターンズ道路にわずか1日で設置) | -------![]() | |
ianVisits | 2025-02-04 21:40 | ????0? | |
It wasn’t a surprise, as the road had to be closed for the operation to be carried out and HS2’s contractors have been preparing the site for several years. During that time, they’ve been building the concrete piers that hold the bridge and then, next to the road, building the bridge itself, which would then be slid into place.On Friday morning, the road was closed to allow the enormous 4,500-tonne preconstructed deck to be pulled over the road to sit on its new piers. The road was closed not because they thought it might go wrong, but mainly to avoid motorists being distracted by the sight of huge red jaws slowly moving over their heads.With the deck now in position, engineers can begin the challenging job of lowering it by 60cm onto the permanent bearings that will support the full weight of the viaduct. The two-month operation will see it carefully lowered by 20cm at a time, pier-by-pier, until the whole deck settles into its final position.While final works on the railway bridge are completed, landscaping of the road that will pass underneath it continues. For the first time along this stretch of busy road, there will also be a shared foot and cycle path, which will eventually form part of the Misbourne Greenway project designed to link Wendover with Great Missenden. -- ???????? | |||
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