Tunnel Construction at Fukushima

Tunnel Construction at Fukushima

福島県某道路トンネル工事
Objective Infrastructure Improvement
Techniques

Mechanicak Mixing

Jet Grouting

Period 06/2014~07/2014
Comment

In the construction of a road tunnel, to prevent the tunnel entrance settlement, ground improvement work was conducted as a countermeasure against settlement at the tunnel entrance. Due to the bearing layer being 14m deep, we adopted Power Blender method for the depth of 0 to 8m, and the Column Jet Grouting method for the depth of 8 to 14m.

(Location: Fukushima)

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