Tenders Are Invited For Engineering Services – Geotechnics Expert Including Explosive Ordnance Examination

Engineering Services – Geotechnics Expert Including Explosive Ordnance Examination. The Main Administration Is To Be Comprehensively Modernized. The Plan Is To Add A Staircase To The So-Called Main Building On Dürerstrasse And To Add More Floors To The Main Building And The Intermediate Building. A Geothermal Field With Deep Drillings And A Rain Retention Basin Are To Be Installed Under The Parking Area On Dürerstrasse And In Parts Of The Inner Garden Courtyard. For This Purpose, The Outdoor Area Will Then Be Redesigned Taking Into Account Species And Monument Protection Issues. In Connection With The Planned Extension Of The So-Called Main Building And The So-Called Intermediate Structure, It May Become Necessary, For Example. B. Future Elevator Underpasses And / Or Highly Loaded Supports Using Small Bored Piles, So-Called Gewi Piles, To Be Re-Founded Or Re-Founded. In Addition, To Build The Rain Retention Basin, An Excavation Pit Up To Around 5 M Deep Is Required, Which Must Be Secured Structurally. In Addition, Introduction Shafts Must Be Constructed At The Connecting And Main Construction. For This Purpose, Shoring And Dewatering Must Be Provided. Regardless Of The Planned Geothermal Field, A Water Permit Is Required For The Permanent Integration Of The Gewi Piles Into The Groundwater On The One Hand And The Insertion Of The Shoring Elements Into The Groundwater And The Permanent Integration Of The Rain Retention Basin Into The Groundwater On The Other Hand. The Project Area Is Located In A Bombing Zone During The Second World War. As Part Of The Services To Be Provided In Advance Of Drilling And Sounding In The External Areas, This Requires A Prior Clearance Measurement Of Weapons Technology By An Authorized Company. The Aim Of This Order For Geotechnical Subsoil Investigations Is To Determine, Describe And Assess The Subsoil And Groundwater Conditions, Including With Regard To Possible Loads, Based On The Documents And Documentation Already Available And The Investigations To Be Carried Out As Part Of This Order, For The Buildings And The Shoring And Excavation Measures. Recommendations For The Foundation, Including Information On The Design Dimensions, Must Be Derived, Information On The Construction And Keeping Of The Excavation Pit And The Structure Dry, Information On The Effects Of The Structures On The Surrounding Area And On Neighboring Structures As Well As Information On Construction Execution Must Be Developed And Presented In The Main Geotechnical Report.