Transformer stations on micropiles and on a granular bed

Foundation design for two 36 t transformer stations in two parts of the development. In part I, on soft soils in geotechnical category II, a 5,000 × 3,000 mm slab, 250 mm thick, rests on eight injected micropiles 9 m long. In part II the station has shallow foundations on a mineral bed.

Year

2026

MJKM role

Amended building permit design and detailed design of the structure

Micropiles

8 × 9,000 mm, down to level −10,050 mm

Layout

Two rows 2,400 mm apart, at 1,467 mm along the slab

Load

Most heavily loaded micropile: 103.04 kN (design value)