Prior Information Notice For Works For Complete Or Part Construction And Civil Engineering Work - Effluentle ...

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Prior Information Notice For Works For Complete Or Part Construction And Civil Engineering Work - Effluentleiding Rwzi. The Project Concerns The Sustainable Restoration Of The Effluent Pipe On The Site Of The Amsterdam West Wwtp (Aw), Between The Effluent Wells Of The Secondary Settling Tanks And The Effluent Gutter. This Concerns Two Pipes, One On The North Side Of The Site Along The Track And One On The South Side Along The Westpoortweg. Essentially It Involves Delivering Work: Applying Needle Felt Relining Impregnated With Resin On The Inside Of The Effluent Pipes With The Following Dimensions: 132 M Length X 900 Mm Diameter 265 M Length X 1250 Mm Diameter 338 M Length X 1600 Mm Diameter 113 M Length X 1800 Mm Diameter 463 M Length X 2000 Mm Diameter 57 M Length X 2200 Mm Diameter It - Where Necessary – Carrying Out Inspections And Studies For Determination And Quantification Of The Defects In The Effluent Pipes To Substantiate The Renovation Method To Be Chosen. During The Construction Team Phase It May Become Apparent That Relining Is Not For All Effluent Pipes Is The Most Suitable Solution. In That Case, Other Solutions May Be Decided Upon To Be Applied, For Example Complete Replacement Of The Pipe. Finishing It Waterproof Of The Relining Of The Effluent Wells. The Provision Of Flexible Transition Facilities For The Purpose Of Recording The Residual Settlement Difference Between The Pipe And The Wells And For The Purpose Of Recording Thermal Deformations Of The Effluent Pipes. Its Functional Maintaining The Required Discharge Capacity Of Effluent Water During The Implementation Phase By Installing And Removing Temporary Drain Pipes. All Additional Work Including Temporary Auxiliary Structures And Facilities. In November 2023 It Has Been Shown That The Effluent Discharge Pipes From The Measuring Flume To The Outlet Into The Harbor Also Shows Leakage. At The Intersection With The Road Dortmuiden Shows One Of The Ø 2000 Mm Pp Pipes Cracks, Which Is Why The Decision Has Been Made To Temporarily Repair Them, But Then To Renovate, Strengthen Or Replace Them Of These 2 Pipelines, Each With A Length Of Approximately 250 M, To The Scope Of This Project To Add. In The Construction Team Phase, This Will Be Further Discussed Together With The Selected Market Party Research Is Carried Out And The Decision Is Made As To Which Solution Will Be Chosen Will Be. During Repair Or Renewal Of These Pipes, The Required Capacity Must Be Maintained Of The Drain Pipes Must Be Maintained Functionally, Which Means Temporarily Whether A Third Pipeline Should Be Installed Permanently. Since A Temporary Pipe Costs As Much As A Permanent One, A Third Pipe Will Be Added For The Time Being To The Scope.

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