The minimum pile spacing in the UK is determined by the specific requirements of each project and the type of structure being built. There is no standard minimum pile spacing that applies to all projects in the UK.
The spacing between piles is typically determined by factors such as the load-bearing capacity required, the type of soil, and the size and depth of the piles. A professional piling contractor will be able to assess the specific requirements of a project and recommend the appropriate spacing for the piles.
In general, the closer together the piles are spaced, the higher the load-bearing capacity of the foundation will be. However, increasing the number of piles also increases the cost of the project, so it is important to find a balance between cost and performance.
It is important to note that the minimum pile spacing in the UK is subject to change based on changes to building regulations and industry standards, so it is advisable to consult with a professional piling contractor for the most up-to-date information.