Presentation is loading. Please wait.

Presentation is loading. Please wait.

RD-PILE WALL – NEW WAY TO BUILD

Similar presentations


Presentation on theme: "RD-PILE WALL – NEW WAY TO BUILD"— Presentation transcript:

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

2 AMC – Analysis Modelling Calculation Group
Grundvatten- Ytvatten- Dagvatten- Spill Bygg- konstruktion Geokonstruktion 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 Content slide, two columns with image. Image size: 11,28 cm x 10,78 cm

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

7 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 ACHIEVED BENEFITS

8 example 2: BUILDING SITE AND DESIGNED UNDERGROUND SPACE
GW 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. Endslide


Download ppt "RD-PILE WALL – NEW WAY TO BUILD"

Similar presentations


Ads by Google