Can be installed in both existing and new setups! A floating suppression method that does not affect the manhole during normal conditions.
The "Hattrling Method" is a technique that utilizes the weight of the blocks and the backfill soil on top of the blocks to suppress the uplift of manholes. This method can be applied not only to existing manholes in urban areas, which are significantly affected by uplift, but also to newly installed manholes. It does not create holes in the manhole or obstruct the internal cross-section, and it is designed to suppress uplift only when it is about to occur, so there is no constant load applied. 【Features】 ■ Can be installed on both existing and new manholes ■ Does not affect the manhole ■ No increase in inertial forces due to seismic motion ■ Easy installation and low cost ■ Obtained technical evaluation under the Japan Society of Civil Engineers' technical evaluation system *For more details, please refer to the PDF materials or feel free to contact us.
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basic information
【Construction Procedures】 ■ Excavation ■ Installation of fixing bands ■ Installation of buoyancy suppression blocks ■ Installation of backup materials ■ Installation of sediment inflow prevention materials ■ Installation of sediment outflow prevention nets ■ Backfilling with crushed stone and restoration of the subgrade ■ Restoration of pavement (completion of construction) *For more details, please refer to the PDF materials or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Company information
Aura CE Co., Ltd. engages in a wide range of businesses, including the sale and leasing of construction materials such as earthquake-resistant materials, as well as trading activities. We also carry out specialized civil engineering works such as slope protection construction, ground improvement construction, and environmental conservation greening projects. Additionally, we conduct seismic reinforcement works and structural repair works that can respond to earthquakes. Our company accurately perceives the needs that arise in any changing era and contributes to society.