{"id":31467,"date":"2025-08-29T09:17:03","date_gmt":"2025-08-29T07:17:03","guid":{"rendered":"https:\/\/www.soletanche-bachy.com\/soletanche-polska-realise-les-fondations-dun-bassin-de-retention-a-lacina-avec-le-trenchmix\/"},"modified":"2025-11-19T09:23:29","modified_gmt":"2025-11-19T08:23:29","slug":"soletanche-polska-builds-the-foundations-of-a-retention-basin-in-lacina-using-trenchmix","status":"publish","type":"post","link":"https:\/\/www.soletanche-bachy.com\/en\/soletanche-polska-builds-the-foundations-of-a-retention-basin-in-lacina-using-trenchmix\/","title":{"rendered":"Soletanche Polska Builds the Foundations of a Retention Basin in \u0141acina Using Trenchmix\u00ae"},"content":{"rendered":"

29\/08\/2025<\/p>\n<\/div>

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Soletanche Polska Builds the Foundations of a Retention Basin in \u0141acina Using Trenchmix\u00ae<\/h1><\/div>
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In response to increasing climate-related challenges, the city of Pozna\u0144 has launched an ambitious project in the \u0141acina district: the construction of an innovative retention basin that combines sustainable stormwater management, technical performance, and quality of life. Soletanche Polska has been commissioned to build the foundations of this structure using Trenchmix\u00ae soil mixing technology.<\/p>\n<\/div>

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An essential tool against flooding<\/strong><\/h2><\/div>

On behalf of AQUANET S.A., the general contractor PGTB Sp. z o.o. entrusted Soletanche Polska with the construction of the reservoir foundations. The primary purpose of this facility is to ensure the hydrological safety of a sensitive area of Pozna\u0144. Covering an area of approximately 2,800 m\u00b2, it will be able to contain up to 1,900 m\u00b3 of rainwater or meltwater, temporarily stored before being discharged into the Warta River through the sewer system.<\/p>\n<\/div>

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An innovative technology: Trenchmix\u00ae<\/strong><\/h3><\/div>
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The soil in \u0141acina presents major challenges: high groundwater levels, deep clay layers, and geotechnical instability. To address these issues, the teams implemented Trenchmix\u00ae technology, a deep soil mixing solution with binder. Soil mixing consumes fewer resources thanks to the reuse of in-situ soil, which reduces the need for water, cement, and aggregates. This technique generates little to no spoil, resulting in fewer materials to remove and lower CO\u00b2 emissions from transportation.<\/p>\n

Here, Soletanche Polska is building 263 linear meters of watertight walls up to 10 meters deep, ensuring the durability and impermeability of the structure.<\/p>\n<\/div>

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<\/i>See more about Trenchmix\u00ae<\/span><\/a><\/div>
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A public space with added value<\/strong><\/p>\n

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This reservoir is not just a technical facility: it is part of a broader sustainable development plan. Once completed, the area will be:<\/p>\n