Tenders Are Invited For Plumbing And Drain-Laying Work - Construction Of Main Sewer Branch Iii In Gorna Bany ... in Bulgaria

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Plumbing And Drain-Laying Work - Construction Of Main Sewer Branch Iii In Gorna Banya Quarter, Ovcha Kupel District.. A Working Project Has Been Prepared For The Site, Which Envisages The Completion Of The Main Sewerage Branch Iii Of The Gorna Banya District, In The Section From Its Intersection At Montevideo Street (Srsh5) To The Discharge Into The Existing Srsh1a, (At Quarters 61 And 57A). The Project Envisages The Construction Of Canal Connection-1 As A Continuation Of The Constructed Canal Dn800 And The Rs Across Montevideo Street. It Is Part Of Cl. 315A. Main Sewerage Branch Iii Of The Gorna Banya Quarter, In The Section From Srsh5 To Its Outlet In The Same Srsh1a Has A Total Length Of 238.20M And A Diameter Of Dn1600. Canal Connection-1 Has A Route From The Existing Рш6` To The Discharge And In The Newly Designed Рш3, Diameter Dn800 And Length 39.90M. The Construction Of The New Sewer Must Necessarily Start From The Discharge, And The Pipes Are Laid In A Reinforced Trench, Along The Entire Length. The Average Depth Of The Sewer Is 3.80 M. The Groundwater In The Considered Territory Is At A Depth Of 3.50-3.60 M. And Have A Seasonal Rise. A Drain With A Diameter Of Ø200 For Dn1600 Pipes And Ø160 For Dn800 Pipes Is Planned To Be Executed. The Drainage Pipes Are Perforated Pvc. In The Reach Of The Shaft, The Drainage Is Planned To Be Made Of A Thick Pvc Pipe In The Corresponding Diameter. In The Section From Srsh 5 To Rsh 4, Measures Are Planned To Strengthen The Bottom Of The Trench. It Is Mandatory To Secure The Trench With Safety Fences, Light Signaling, Construction Of Footbridges For Passing Over The Trench At Certain Points, Etc. Along The Route Of The New Canal, It Is Planned To Build 4 Monolithic Inspection Shafts - Рш 2, Срш 3, Рш 4 And Срш 5 And One Рш6 - Ф1500, From Prefabricated Steel Concrete Elements And Cast Iron Covers Of The Inspection Shafts With Dn600. An Opening, Which Is To Be Filled With Brickwork, Is Foreseen In Rsh 4 For The Future Cl. 168 (Ø300). All Elevations In The Working Project Are According To The Baltic Height System. During The Construction, The Excavations Should Be Fenced With A Temporary Safety Fence And Signaling Should Be Installed (Lights For The Night). During The Construction Of The Sewer, Start From The Discharge Of The New Canal In The Opposite Direction.

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