Contiguous Pile Wall

A series of adjacent piles constructed to form an earth retaining structure as a cantilever or a propped cantilever wall. Contiguous piled walls consist of a row of successive unconnected cast-in-situ concrete piles constructed with small gaps between the adjacent piles, formed using CFA or rotary bored piles (replacement piles techniques). Compared to other lateral soil supporting systems, contiguous pile walls are a more simple and economical supporting system due to reduction in cost and construction period when considering small to medium scale depths of excavations.

Construction sequence

Fields of application

  • New basement structures, especially in urban areas

  • Additional support for highways subject to embankment slippage (slope stability)

  • Bridge abutments carrying horizontal loads

  • Embankment cuttings

Environmental impact

  • Has a positive environmental impact by facilitating earth retaining solutions with the minimum amount of excavation (rather simple "production / installation" procedure).

  • Piling with comparatively low level of noise, vibration and deformation of adjacent soil mass, therefore suitable in crowded urban or industrial contexts.

Technical specifications

Franki Foundations UK


Martello Piling

Atlas Fondations

Franki Grondtechnieken

Franki Foundations

Franki Foundations is the undisputed leader in the Belgian market, offering a wide range of deep foundation solutions. The group has affiliates in Belgium and Luxemburg, France (Atlas Fondations), Netherlands (Franki Grondtechnieken) and the UK (Franki Foundations UK). We are also active in the DRC (Congo), the UAE and Qatar. Franki Foundations is a member of BESIX Group. Our more than 250 staff will do its utmost to find and effect the right solution to your foundation problem, big or small!