View basket “Forward probing ahead of tunnel boring machines” has been added to your basket.Segmental gaskets – GT9R4A130,00€ (30,00€ Excluding tax)Segmental gaskets – GT9R4A1 - Segmental gaskets - GT9R4A1 quantity + Add to basket SKU: GT9R4A1-EN Category: Recommendations Tags: Sealing, Segments, TBM Additional information Additional informationYear of publication1993LanguageFrenchNumber of pages8AuthorAFTESRelated productsThe design, sizing and construction of precast concrete segments installed at the rear of a tunnel boring machine (TBM) 30,00€ (30,00€ Excluding tax) Add to basketRail tracks and track beds in tunnels – GT40R2A1 30,00€ (30,00€ Excluding tax) Add to basketVentilation of underground works during construction 30,00€ (30,00€ Excluding tax) Add to basketEarthquake design and protection of underground structures 30,00€ (30,00€ Excluding tax) Add to basket