We will suppress the rising of manholes due to liquefaction during earthquakes and ensure the drainage function of the sewage system!
In major earthquakes that have occurred so far, the strong shaking has caused ground liquefaction, resulting in numerous manholes floating to the surface. The floating of these manholes not only impairs the drainage function of the sewage system but also creates obstacles on the surface, hindering the passage of emergency vehicles and others. As a result, this has posed a problem that affects the relief activities for earthquake victims. The "Floatless Construction Method" suppresses the floating of manholes caused by liquefaction during earthquakes. [Features] - Non-excavation method to implement measures against floating due to liquefaction of existing manholes - Quick installation possible - Economical construction costs - Safe and reliable construction - Can be executed in a small work space without causing traffic disruption *For more details, please refer to the PDF document or feel free to contact us.
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【Construction Procedure】 (1) Install the dissipating valve installation device inside the manhole and drill up to just before penetration. (2) Remove the core from the drilled area. (3) Insert the dissipating valve into the drilled hole and press it in until the wall left in step 1 penetrates. (4) Attach a cover to the dissipating valve and finish the surrounding area with mortar. *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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The Sewer Existing Pipeline Seismic Technology Association aims to improve and disseminate seismic technology for existing sewer pipelines, while also ensuring its effective and appropriate utilization. Furthermore, we are committed to maintaining the functionality of citizens' lives during earthquakes, promoting the development of sewer projects, and realizing a safe and prosperous society. Please feel free to contact us if you have any requests.