Method of constructing a basement beneath an existing building

摘要

A method of constructing a basement (13) beneath an existing building (1), whereby a bed (4) is formed at at least part of a useful surface area (3) of the building (1); the bed (4) is connected to a wall structure (2) of the building (1); a number of foundation piles (11) are inserted through the bed (4) into the ground (12) beneath the bed (4); the foundation piles (11) are fixed to the bed (4); and the ground about the foundation piles (11) and beneath substantially the whole of the bed (4) is excavated to form the basement (13).