Foundation improvement of historical buildings by micro piles - PowerPoint PPT Presentation

Foundation improvement of historical buildings by micro piles Museum Island Berlin, St. Kolumba Cologne Dipl.-Ing. Klaus Dietz Dr.-Ing. André Schürmann Dietz Geotechnik Consult GmbH, Hilden, Germany Stump Spezialtiefbau GmbH, Langenfeld, Germany 1

structuring 1. introduction 2. micro pile as foundation improvement element 3. case histories 3.1 Museum Island, Berlin 3.2 St. Kolumba, Cologne 4. conclusions 7 th ISM workschop 2006, Schrobenhausen 2

Stump-system steel-tube pile Stump-system composite pile 7 th ISM workschop 2006, Schrobenhausen 3

Load bearing systems and wall connections plug in tension girder Wall- anchor recess mortar connection beam micro pile 7 th ISM workschop 2006, Schrobenhausen 4

Museum Island, Berlin New Museum Erected 1841 – 1855 Destroyed WW II Renovation 1990 - 2009 7 th ISM workschop 2006, Schrobenhausen 5

Museum Island, Berlin New Museum 7 th ISM workschop 2006, Schrobenhausen 6

„Mudde“ muddy soil dense-medium sand 7 th ISM workschop 2006, Schrobenhausen 7

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History of St. Kolumba church short before renovation church before WW II 7 th ISM workschop 2006, Schrobenhausen 15

concept of new Diözesanmuseum above the ruins of St. Kolumba by Peter Zumtor 7 th ISM workschop 2006, Schrobenhausen 16

Foundation concept new Diözesanmuseum RB +12,919 RB +12,919 OK Kuppel +12,919 Ø 298,5 x 30 mm bestehende Kapelle +0,073 Grabungsfeld GEWI-Pfahl Ø 298,5 Ø 32 mm x 30 mm GEWI-Pfahl GEWI-Mehrstabpfahl Ø 63,5 mm 2 x 40 mm + 1 x 50 mm GEWI-Pfahl Ø63,5 mm cross section digging field 7 th ISM workschop 2006, Schrobenhausen 17

preparing investigations before test drilling masonry core after grouting 7 th ISM workschop 2006, Schrobenhausen 18

preparing investigations execution of pile test Kraft - Verschiebungsdiagramm, Pfahl G1 Load displacement diagram, test pile G1 Kraft [kN] Load [kN] 0 500 1000 1500 2000 2500 3000 3500 4000 0 5 Verschiebung [mm] 10 displacement [mm] 15 20 25 30 pile test equipment proaf load 4000 kN 7 th ISM workschop 2006, Schrobenhausen 19

View arrangement of implants and nailcolumns internal column support construction implant 7 th ISM workschop 2006, Schrobenhausen 20

Cross-section View Steel tube Masonry extension new building Reinforced +7,14m conrete Beam top of implant Steel tupe 298,5x 30mm Existing masonry High-quality of ruin steel tube GEWI single bar- or multi bar- pile Top of excavation Ground level Old foundation arch Vault Pre-stabilization implant in the of masonry Bend securing GEWI-pile 2x 32mm outside walls Bottom level implant (cross section and view, detail implantcoupling) Gravel 7 th ISM workschop 2006, Schrobenhausen 21

Steel tube (298,5 x 30 mm) Special-steel-protection tube (330 x 5 mm) Protection tube Steel-tube GEWI-pile grout Cross section view masonry column and cross section implant 7 th ISM workschop 2006, Schrobenhausen 22

Pile production 1 2 3 4 5 7 th ISM workschop 2006, Schrobenhausen 23

Core drilling through the old walls 7 th ISM workschop 2006, Schrobenhausen 24

drilling for pile installation 7 th ISM workschop 2006, Schrobenhausen 25

□ 350/350/30 mm +12,26 10 Stahlrohr Ø 289,5 x 30mm Brandschutz Ankerbolzen 10 Pagel Verguss 420/420/60 mm verdichtete Anschüttung (Kies) Kontermutter 3 6 Ankerplatte 7 0 Ankermutter 3 6 Sauberkeitsschicht E in b in d e tie fe t = 6 m im g e w a c h s e n e n K ie s /S a n d Kunststoffripprohr Distanzhalter Einbindetiefe t = 6m im foundation gewachsenen Kies/Sand Bohrung Ø 220 mm nailcolumns GEWI-Pfahl Ø 63,5 mm digging field mit doppeltem Korrosionsschutz Pfahlneigung 10° zur Vertikalen 7 th ISM workschop 2006, Schrobenhausen 26

Drilling for micro piles at the chapel and on the digging field 7 th ISM workschop 2006, Schrobenhausen 27

conclusions • introduction of project specific measures • quality safety programme 7 th ISM workschop 2006, Schrobenhausen 28

Thank you for your attention 7 th ISM workschop 2006, Schrobenhausen 29