1 / 14

Steel pile day 20.05.2010

Steel pile day 20.05.2010. RD-PILE WALL – NEW WAY TO BUILD Lars Johansson Ramboll Sverige AB in co-operation with Juha Forsman Ramboll Finland Ay. Title slide. AMC – Analysis Modelling Calculation Group. Bygg- konstruktion. Geokonstruktion. Grundvatten-

diella
Download Presentation

Steel pile day 20.05.2010

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Steel pile day 20.05.2010 RD-PILE WALL – NEW WAY TO BUILD Lars Johansson Ramboll Sverige AB in co-operation with Juha Forsman Ramboll Finland Ay Title slide

  2. AMC – Analysis Modelling Calculation Group Bygg- konstruktion Geokonstruktion Grundvatten- Ytvatten- Dagvatten- Spill Trafik

  3. AMC – Analysis Modelling Calculation Group Samverkansanalyser – samverkan mellan jord och konstruktioner. Nära samarbete mellan geotekniker och konstruktörer Eurokoder (EC7) Funktionsdesign mer än brottdesign Krav på mer avancerade analyser (finita element analyser) Särskild satsning med bas i Malmö Spänner över Norden, Baltikum och UK Samarbete (andra aktörer på marknaden, Högskolor/Universitet/ Forskningsinstitut) Bättre kvalitet

  4. EXAMPLES OF ”TRADITIONAL” SHEET PILE WALL Content slide, two columns with image

  5. TRADITIONAL BUILDING PIT SUPPORTED BY SHEET PILE WALL pit boundary fill rock anchors sheet pile wall clay moraine • Insecure method to penetrate through rocky boulderly soil layers = contact to bedrock through moraine is often hard to achieve • Outer walls of building must have their own foundations • Basement walls cannot extend to the boundary of the excavation pit (sheet pile wall requires space) • Many support levels (struts). Steel bars/dowels are needed for anchoring of the lower end into bedrock • Problems to control ground water

  6. TRADITIONAL SOLUTION NEW, ALTERNATIVE SOLUTION plot boundary fill rock anchors clay RD-pile wall moraine bedrock

  7. ACHIEVED BENEFITS • RD-pile wall can be installed near the excavation boundary and ”in open space” in plot boundary • Distance of ground water flow increases => amount of water decreases. Water-tight structure as a whole. • Act as bearing structure (foundations, basement wall, good stiffness) • External anchoring is not allways needed (for instance upper deck acts as inside strut) • Penetration of all soil layers • Contact to bedrock is secured

  8. example 2: BUILDING SITE AND DESIGNED UNDERGROUND SPACE GW Tä Sa Mr

  9. 1. INSTALLATION OF RD-PILE WALL GW

  10. 2. INSTALLATION OF REST OF THE DRILLED PILES AND CONSTRUCTION OF FIRST LEVEL FLOOR GW

  11. 3. EXCAVATION OF FIRST BASEMENT LEVEL AND CONSTRUCTION OF FLOOR DECK GW

  12. 4. EXCAVATION AND BLAST BREAKING OF SECOND BASEMENT LEVEL AND CONSTRUCTION OF FLOOR DECK GW

  13. 5. AT A SAME TIME CONSTUCTION UPWARDS IS POSSIBLE GW

  14. THANK YOU Endslide.

More Related