Tenders Are Invited For Inspection Of High Chambers: Part I - High Chambers

1. The Subject Of The Order Is: 1) Performance Of Four Quarterly Inspections Using Mountaineering Methods Of The Condition Of 59 High Chambers, Hereinafter Referred To As High Chambers, A Detailed List Of Which Is Included In Annex No. 1 To The Specification, 2) Performance Of Four Quarterly Measurements Of The Opening Of Cracks Using Mountaineering Methods At 362 Measurement Stations Built In High Chambers, Referred To In Annex No. 1 To The Specifications, 3) Carrying Out, Using Mountaineering Methods, Four Quarterly Inspections Of The Technical Condition Of Control Galleries (Including: Barriers, Platforms, Fastening, Supporting And Stabilizing Elements) In The Chambers: Barącza, Saurau, Michałowice, Weimar, Haluszka And Wessel, 4) Reading Measurements From Sensors Installed In The Maria Teresa Ii Górna Chamber And Interpreting The Results, 5) Inspecting The Drainage System In The Ceiling Part In The Gołuchowski Chamber, 6) Preparing A Written Report On The Condition Inspection High Chambers, The Technical Condition Of The Control Galleries And The Measurements Of The Gaps, 7) Readings From 20 Feeler Gauges Installed In The Margielnik Chamber On Pos. Iii, 8) Crumbling Of The Ceiling And Side Walls In Places Of Noticed Detachments, 9) Wedging Of Loose Wooden Cladding And Lining. 2. Whenever The Contract Mentions A Quarter, It Should Be Understood As A Calendar Quarter. 3. Rules For The Execution Of The Subject Of The Order.3.1. Inspections Of The Condition Of High Chambers And Measurements Of The Opening Of Cracks Should Be Performed In Each Subsequent Calendar Quarter, In Accordance With The Methodology Presented In Annex No. 2 To The Specification And The Order Of The Operations Manager Of The Wieliczka Salt Mine Of November 6, 2023 On The Inspection Of The Condition Of Excavation Support. And Inspection Of The Condition Of Workings Maintained Without Support, Constituting Annex No. 3 To The Specification. 3.2. The Report Referred To In Point 1.7 Should Contain Complete Information On The Type, Scope And Date Of The Inspection And Work Referred To In Point 1.1-6 And Points 8-9, Including In Particular Photographic Documentation, Showing The Places Of Damage Found During The Inspection Of The High Chambers, The Name Of The Excavation, The Date Of Inspection In Each Excavation, Comments On The Condition Of The Unbuilt Surfaces Of The High Chambers And The State Of Deformation Of The Support Or Its Individual Elements. 3.3. A Report Should Be Prepared From The Inspection, Which Will Include Interpretations Of The Crack Propagation Measurements Made. The Report Should Include A Graphic Part Regarding The Location Of Measurement Bases (Sketches Of Base Locations). The Interpretation Of Measurement Results Should Be Performed By A Geomechanics Specialist With At Least A Ph.D. Degree. 3.4. Inspections Will Be Carried Out On Dates Agreed By The Contractor And The Ordering Party. 4. Detailed Information Regarding The Subject Of The Order And The Rules Of Its Implementation Are Included In The Documentation Available At: Https://Kopalniawieliczka.Ezaniąjacy.Pl/