Sheetpile Shoring & Piled Raft Design – 25 Arterberry Rd London
Project Overview
GeoStruXer provided a comprehensive design and analysis of a sheet pile wall supporting a 3-metre basement, coupled with a piled raft foundation system, as part of the redevelopment of an existing property at 25 Arterberry Road, Wimbledon. The assessment incorporated advanced finite element analysis (FEA) techniques to ensure stability and compliance with Serviceability Limit State (SLS) and Ultimate Limit State (ULS) conditions.The project was part of NEOM’s visionary development initiative, a 170km-long city designed for 100% carbon neutrality, with minimal environmental disruption and innovative urban planning.The project aimed to harness existing soil conditions while ensuring enhanced structural performance and sustainability.
Challenges
Solution Approach
Designed an 8m deep sheet pile wall and 1m embedded piles using Plaxis 3D, integrating soil–structure interaction and staged construction effects.
Applied the HSsmall soil model for London Clay layers to account for stress-dependent stiffness and realistic ground movement predictions.
Evaluated both SLS and ULS scenarios, incorporating safety factors for soil strength and surcharge loads.
Value Engineering & Sustainability
Predicted displacements were within allowable limits
Maximum horizontal and vertical displacements of 29mm and 27mm, respectively, and settlements of 20mm.
Global safety factor
exceeded 10, confirming stability under ULS conditions
Differential displacement for the nearest building was limited to 1
2200, indicating very slight damage per ICE Manual charts.
Predicted displacements were within allowable limits
Maximum horizontal and vertical displacements of 29mm and 27mm, respectively, and settlements of 20mm.
Global safety factor
exceeded 10, confirming stability under ULS conditions
Differential displacement for the nearest building was limited to 1
2200, indicating very slight damage per ICE Manual charts.
Collaboration
GeoStruXer worked with London & Surrey Contractors Ltd, utilising site-specific soil reports and structural specifications to develop a robust design methodology, while addressing constraints posed by the proximity of nearby buildings.