Tenders Are Invited For Construction Of A Sanitary Sewage System In The Commune Of Swarzynice, Stage Iii

A Gravity And Pressure Sewage Network Was Designed For The Town Of Swarzynice. The Documentation Includes: Gravity And Pressure Pipelines, Property Extensions, Sewage Pumping Stations. The Documentation Does Not Include Sewage Connections To Individual Buildings. There Are Also No Overvoltages Or Connections To The Existing Buildings Of The Underground Sewage System. For The Purposes Of This Documentation, Ground Tests Were Carried Out In Several Parts Of Swarzynice. On This Basis, Ground Conditions Are Defined As Simple, And The Designed Objects Are Classified In The First Geotechnical Category. During Geological Works, Groundwater And Layers Of Non-Construction Embankments Were Drilled. A Detailed Description Of The Ground Conditions Can Be Found In The Geotechnical Opinion. Gravity Network: A Gravity System Should Be Made Of Solid Pvc Pipes, Class Sn8, With A Diameter Of 160-200 Mm. The Pipelines Were Designed For Asphalt Roadways, Gravel Roads, Roadsides And Roads Paved With Polbruk Stones. Due To The Specificity Of Swarzynice, The Depth Of Pipeline Laying Ranges From 1.0 M To Over 4.0 M. However, Sections With A Depth Of Over 4.0 M Occur Sporadically. The Vast Majority Of Networks Are Laid To An Average Depth Of 2-3 M. To Change The Route Of The Laid Channels, It Is Planned To Use Concrete Wells With A Diameter Of Ø1000 Mm, Class B45, With ¾ Sockets. All Wells End With A Well Plate, A Relief Ring And A D400 Class Cast Iron Manhole With Concrete Filling. Match The Cast Iron Manhole To The Terrain Elevations. Additionally, It Is Planned To Install The Wells On Straight Sections At Maximum Distances Of Approximately Every 50 Meters. Any Side Outlets (Reachers) Are Made By Connecting Them To The Main Network Via A Tee Or To The Nearest Concrete Well. Before Starting Work On A Given Section, The Contractor Is Obliged To Confirm The Possibility Of Its Correct Implementation, Especially Taking Into Account The Terrain Elevations.The Main Collector Is Arranged With A Slope Of 5-6 Per Mille.Pressure Networkthe Installation Of A Sewage Pumping Station Is Planned.A Chamber With A Basket Grate Is Planned To Be Constructed In Front Of Each Pumping Station.Delivery Sections With A Diameter Of 90-110Mm Have Been Designed.The Discharge Sewerage Should Be Made Of Pipes Pe100 Sdr 17 Butt Welded. The Average Depth Of Laying The Pipeline Is 1.2 M Below Ground Level. Place A Brown Locating Tape With A Metal Insert At A Height Of 30 Cm Above The Pipe. In The Area Of ​​Swarzynice, Most Of The Pipelines Should Be Laid In A Common Trench With The Gravity Sewage System. The Transmission Section Between Swarzynice And Trzebiechów Will Be Laid In The Road Right-Of-Way Of The Provincial Road. The Area Of ​​Impassable Pumping Stations Is Planned To Be Fenced Off And Harden It. Reachers Due To The Work Being Carried Out In Inhabited Areas, Mostly Built-Up Areas, And On Paved Roads, It Is Planned To Build Sewer Reachers For All Developed Plots. This Procedure Is Intended To Enable Individual Connections Of Sewage Connections Without The Need To Interfere With The Road. The Reaches Should Be Made Of 160 Mm Solid Pvc Pipes, Class Sn8. Connection To The Main Sanitary Collector Should Be Done Using A Tee Outlet Or By Connecting It To The Nearest Concrete Well (If Possible). In A Concrete Well, Provide A Base For The Connection. If Necessary, Also Make An External Cascade Connection In The Well. The Cascades Should Be Made For Extensions Connected To Concrete Wells At A Height Of Over 0.5 M From The Bottom Of The Canal. On The Side Of Individual Plots, Install Plastic Inspection Wells Made Of Pp With A Diameter Of 415 Mm, Ending With A Telescope, A Relief Ring And A D400 Class Manhole. (Note: It May Be Necessary To Change The Location Of Individual Sewage Reaches Or Changing Their Installation Depth. Before Installing A Given Reach, The Contractor Is Obliged To Confirm The Possibility Of Subsequent Connection Of Individual Sewage Connections). Material List: Catchment No. 2 - Ps2pvc Sn8 Solid Fi 200 Mm - 1406 Mbpvc Sn8 Solid Fi 160 Mm - 290 Mb Pe 100 Sdr17 Pressure Pipeline Rc Fi 160 Mm – 18 M Pumping Ps2 – 1 Set Grate Chamber – 1 Set Power Connection – 1 Set Pumping Station Fencing – 1 Set