Transportation infrastructure

Thalys train

Roads and working platforms Asphalt reinforcement Reinforced soil structures Railway support Edge drainage Drainage for earth retaining structures and bridge abutments Embankments on weak soils and areas prone to subsidence Vibration damping Erosion control Improved durability of concrete

Stability of the soil on which infrastructure is to be built, is a first and foremost criterion. We provide solutions for reinforcing foundations and subbases over weak soils.

Asphalt surfacing provides a durable, low-noise, permeable road surface but unfortunately it can be prone to cracking and wear due to external forces including traffic load, movement of the subgrade material and seasonal temperature fluctuations.

Whether widening existing road to increase capacity, stabilizing existing embankments or creating new infrastructure, the need to minimize the land space needed for the works and reduce the need for removal of in situ materials is key to delivering cost-effective and sustainable schemes.

Passage of train wheels on a railway track causes a dynamic vertical load on the sleepers and ballast. This pumping action can cause subsoil to be pumped upwards into the ballast foundation, with the subsequent reduction of its bearing capacity.

Water in soil embankments and cuttings increases pore pressure and reduces the soil’s strength which can have disastrous effects on the structure as a whole.

Water buildup behind conventional retaining structures and bridge abutments can increase the applied loading and movements on the rear of the structure and may require thicker structures to resist the loading.

Soft foundation soils or potential cavities under road or railway embankments can cause differential settlements and long-drawn-out consolidation, critical deformations or even insufficient global stability.

Road traffic, trains, trams and construction traffic create vibrations that are transmitted through soil and concrete to adjacent structures. In densely populated urban areas this can have an impact on the health and well-being of residents as well as affecting the value of their property.

The face of a slope and its geometry can be critical to long-term performance, and any change to its angle or shape may even lead to failure.

Concrete is the preferred solution for durable impact-resistant traffic barriers along the median of major roads and on the parapets above steep embankment slopes or retaining walls.