Due to pile refusal of BP’s Valhall water injection platform, a piggy back solution was developed for securing the jacket to the seabed. Ducorit ® high strength grout was chosen to ensure a proper structural connection between piles, piggyback and the jacket sleeves. Case history Grouting of piggyback sleeves - Ducorit ® D1 existing to the new piles, and further on into the sleeve. This operation therefore demanded a grouted connection w

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