Soft Foundation Processing(Vertical Drain)

Appearance: 1, Appearance of packing: Pie form, middle rolled as a round; 200m/piece; Diameter 0.8 - 1.3m; Thickness 0.1m. 2, Section: Harmonica form, cross-core structure. Material : 1, The core boards are made of mixture from PP and PE, so it combines the rigidity of PP and the flexible and weather-resistant capabilities of PE. 2, filtration membrane is made of non-woven fabrics, permeability and water logging ability enjoying good 3, filtration membrane are firm together when wrapping the core board by ultrasound We are able to manufacture different prefabricated vertical drain according to the specifications of the clients, Welcome your questions and inquiries! itemTest performanceunit modelremarkSPB-ASPB-BSPB-CSPB-DPlastic drain boardSection measurementwidthmm100 ± 2100 ± 2100 ± 2100 ± 2thicknessmm≥ 3.5≥ 4.0≥ 4.5≥ 5.5Vertical tonnagecm3/s ≥ 15 ≥ 25 ≥ 40 ≥ 60 350kPa side pressuretensile strengthkN/ 10cm>1.0 >1.3 >1.5 >1.5 kN/ 10cm pullextension rate% <10 <10 <10 <10 kN/ 10cm pullfiltration membraneSeepage coefficientcm³/s≥ 5x10-4≥ 5x10-4≥ 5x10-4≥ 5x10-424apertureµ/m<75<75<75<7598tensile strength Vertical dry state N/cm ≥ 15 ≥ 25 ≥ 30 ≥ 35 10% extension rateLateral wet state N/cm ≥ 10 ≥ 20 ≥ 25 ≥ 30 15% extension rateCore boardAppearancePie form, middle rolled as a roundStructureBelt pressed to be harmonica shapeRaw materialPP, PEAntibacterial indexNo bacteria breedingpackinglengthm200 ± 240’ containerm 126,000Outer diameterm1.20Iner diameterm0.16