Tenders Are Invited For Drilling Two Holes From The Surface To The Hoenig And Raba Chambers On Level I Of The Wieliczka Salt Mine

1. The Subject Of The Order Is The Construction Of Injection Holes Ti-32 To The Hoenig Chamber And Ti-33 To The Raba Chamber From The Ground Surface, Located At Level I And Equipping Them With Injection Pipes, Hereinafter Referred To As Drilling Works.2. As Part Of The Execution Of The Subject Of The Order, The Contractor Is Obliged To: 1) Organize The Site (Area) Of The Works, 2) Prepare The Technology For The Execution Of The Works, 3) Provide Materials Necessary To Carry Out The Works, 4) Provide Machines And Devices Necessary To Carry Out The Works, 5) Provide Persons With Appropriate Authorizations And Qualifications To Supervise And Perform The Works, 6) Carry Out The Works Resulting From The Design Documentation Indicated In Point 4.3. Before Starting To Drill Injection Holes: Ti-32 And Ti-33, The Contractor Is Obliged To Prepare The Technology, Agree It With The Relevant Services Subordinate To The Operations Manager Of The Wieliczka Salt Mine (Hereinafter Referred To As Krzg), And Then Submit It For Approval By Krzg. The Technology Should Be Consistent With The Order Of Krzg No. Ksw/Z/Krzg/42/2018 Of April 24, 2018 On The Preparation Of Technical Designs Or Work Technologies For The Reconstruction Of Excavations And The Performance Of Other Mining Works, Constituting Annex No. 4 To The Contract.4. Drilling Works Should Be Performed In Accordance With: 1) Documentation Entitled Design Documentation For The Liquidation Of The Raba And Hoenig Chamber Complex Located On Level I Of The Underground Part Of The Wieliczka Salt Mine. Drilling Industry., Prepared In 2023 By The Science And Mining Traditions Foundation, Agh University Of Science And Technology, 30-059 Kraków, Al. Mickiewicza 30 - Annex No. 2 To Contracts,2) Permit No. 46/23 Of The Conservator Of Monuments Of The Krakow Saltworks Of December 22, 2023, Reference Number Dk-453-55/23, Constituting Annex No. 3 To The Agreement.5. The Detailed Scope Of Work To Be Performed As Part Of Drilling Individual Holes Includes The Following Activities: 1) Preparatory Work For Drilling Holes Ti-32 And Ti-33: Preparation Of The Work Site (Levelling The Surface, Making Holes Drilling Equipment Storage, Pipe Ramp, Administrative And Social Facilities, Portable Toilet).2) Drilling Works For Drilling The Ti-32 Hole To The Hoenig Chamber) Installation Of The Drilling Device Over The Designed Hole Inlet According To The Parameters Specified In The Design Documentation Referred To In Point 4, B) Drilling The Hole Biting Auger Or Pdc With A Diameter Of 406 Mm (Ø 16”) To A Depth Of 14 M Above Ground Level Using A Drilling Fluid Based On Tap Water, C) Casing The Hole With Pipes Ø 355.6X8.8 Mm (Ø 14) To A Depth Of 14 M Below Ground Level, D) Cementing Pipes Ø 355.6X8.8 Mm (Ø 14) To The Top Along The Entire Length From 14.0 To 0.0 With Grout Made From Cem Ii32.5 R And Cement Water Water Supply With A Water-Cement Ratio W/C = 0.5,E) Drilling A Plug In Pipes Ø 355.6X8.8 Mm) (Ø 14), Testing The Tightness Of The P