Groundwater lowering method associated with large-scale excavation work for the construction of sewage treatment facilities.

Adopting "SWP" for groundwater level lowering methods associated with excavation work! Contributing to dry work.

At the Hachioji Water Reclamation Center in the middle reaches of the Tama River, the "Super Well Point Method" was adopted for groundwater lowering techniques in conjunction with the construction of a new treatment facility (western water treatment facility). By selectively operating based on excavation depth and groundwater lowering conditions, the groundwater level remained relatively stable overall. At this time, the pumping volume was also stable, and while maintaining this state, the excavation of the lowest floor was carried out. It was confirmed that there was no spring water at the floor level and that it was in a dry state, indicating that the groundwater level at the excavation surface had been lowered to a significant depth. [Summary] ■ Test site: Hachioji Water Reclamation Center located on the right bank of the middle reaches of the Tama River ■ Adopted method: Super Well Point Method ■ Purpose: Groundwater lowering technique during excavation work *For more details, please refer to the PDF document or feel free to contact us.

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