Tenders Are Invited For Test Drilling And Boring Work - Exploration Program 2025

Test Drilling And Boring Work - Exploration Program 2025. In Order To Explore The Geological-Geotechnical Conditions In The Area Of ​​The Planned And Above-Mentioned Construction Work, A Total Of 55 Vertical 6 M To Approx. 60 M Deep Building Base Drilling Drilling Dn 178/Dn 146 With Approx. 888 Lfm And 42 Heavy Ramming Probes With 6 M To 15 M Depth Are Planned. Optionally, The Implementation Of A Further 9 Vertical Approx. 45 M To Approx. 60 M Deep Building Base Drilling Bores With Approx. 480 Lfm Is Provided. In Addition To The Construction Of The Building Grunder Using A Core Bore, The Professional Geotechnical Sampling By The Contractor Is Required (An). Furthermore, The Samples Taken From The Bores Must Be Carried Out By The Samples Taken From The Holes After Consultation And Determination By The Expert For Geotechnical Engineering. The Execution Of The Field Work Described Below Is Planned: • Vertical Bore In The Ramming Core, Rotation Core And/Or Sonic Drilling Drilling Process In Accordance With Ec7 With A Borehole Diameter Of  178 Mm Or  146 Mm For Building Base Drilling Bores (Kb-Pt-48/25-Kb-Pt 64/25; Bs-21/2025- Bs-35/2025; • Removing Soil Samples Of Quality Class 1 To 5 According To Din En 1997-2: 2010-10 On Instructions And Brown Las Samples. • Removement Of The Class 1 To 3 According To Din En 1997-2: 2010-10 On Instruction. • Measuring Right And High Values ​​(Gauss-Krüger) And Etrs89/Utm-Fig. As Well As The Height Of The Head Edge Of The Drilling And Exploratory Points In The Dhhn12 And Dhhn2016 Height System. • Filling The Boreholes With Suitable Material Or After Specification From The Official Notices (Drilling Goods, Sound Pellets, Cement Bentonite Suspension). • Expansion Of 8 Holes To 5 Groundwater Measuring Points (Expansion Depth Approx. 25 M To 60 M) Including Short-Term Pump Test (Pumping Time Min. 60 Min) While Clear Pumps And Installation Data Loggers. Dvgw Worksheet W111: 3-Stage Test (Vsl. 1 L/S, 2 L/S And 3-5 L/S), Pump Time: 2 H Per Level. On New Gwms In Pt-Ost (Vsl. 2 Pieces, Optionally Also On Selected Gwms In Süßenmühle). Record Pump Time And Rise. O Determination Of The On-Site Parameters Of Water Sample From Pump Tests Brunnentest. O Data Logger During Pump Tests Gw Leader Tests For A Total Of Approx. 15 Observation Measurements Deliver, Install And Read Out In Heavily Tense To Artesian Gwms (According To Lv Specifications). O Pump Tests Gw Conductor Test In Accordance With Dvgw Worksheet W111: Vsl. 2 X 100 H And 2 X 200 H Pump Time At New And Existing Gwms In Pt-West Including Continuous Recording Of The On-Site Parameters. Recording Pump Time And Again Rising (At Least 75 % Of T (Pump Time)). Optionally Also Execution

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