Tenders Are Invited For Construction Work For Mining-Essen, New Building Frida Levy Comprehensive School; Drilling Technical Exploration And Security Measures (Altbergbau)

Construction Work For Mining-Essen, New Building Frida Levy Comprehensive School; Drilling Technical Exploration And Security Measures (Altbergbau). The Aim And Scope Of The Drilling -Technical Security Measure The Project Area Should Be Finally Explored And Secured In Terms Of Drilling Technology In Order To Enable Unrestricted Structural Use. For This Purpose, The Old Mining Legacies Up To A Depth Of 20 M Below The Fixed Carbon Surface Must Be Explored And, If Necessary, Secure By Pressing And Injecting A Hydraulically Dilapidated Building Material Pension. The Coal Mountains Are On The Bottom Of An Approximately 30 M Powerful Quaternary And Chalk -Age Coverage. The Essential Performance Includes: - Setting Up A Total Of Approx. 400 Holes With Approx. 22,000 Boring Meters - Installation Of Approx. 15,000 M Pvc Tube, 500 M Pvc Valve Tube, 2600 M Pvc Cover Pipes And 500 M Steel Valve Tube As Well As 2600 M Steel Attachment Pipes - Inserted A Total Of Approx. 5,000 M3 Building Material Pension (Approx. 4,000 T Of Drywall). Period Of Execution: August 2025 - March 2026 (32 Weeks)