Singapore legislation
Regulation 129
of Workplace Safety and Health (Construction) Regulations 2007
Regulation 129
Stability of adjacent structures
Subregulation 1
It shall be the duty of the occupier of a worksite to ensure that before carrying out any piling work which may affect the stability of any structure within the worksite —
the structure is adequately supported by underpinning, sheet piling, bracing or other means of shoring in accordance with the design of a professional engineer; and
a certificate under paragraph (3)(ii) has been issued in respect of the underpinning, sheet piling, bracing or other means of shoring.
Subregulation 2
It shall be the duty of the professional engineer who designs the underpinning, sheet piling, bracing or other means of shoring as required under paragraph (1) to support any structure —
to take, so far as is reasonably practicable, such measures as are necessary to ensure that his design can be executed safely by any person constructing the underpinning, sheet piling, bracing or other means of shoring according to his design;
to provide to any person who is constructing or who is to construct the underpinning, sheet piling, bracing or other means of shoring all design documentation (including all relevant calculations, drawings and construction procedures) as is necessary to ensure that the underpinning, sheet piling, bracing or other means shoring is constructed in accordance with his design; and
to take, so far as is reasonably practicable, such measures as are necessary to ensure that the structure is safe to any person working on or near the structure by reason of such underpinning, sheet piling, bracing or other means of shoring.
Subregulation 3
It shall be the duty of —
the professional engineer who designed the underpinning, sheet piling, bracing or other means of shoring to support any structure in a worksite; or
any other professional engineer who is appointed by the occupier of a worksite to oversee the construction of any underpinning, sheet piling, bracing or other means of shoring to support any structure in a worksite,to take, so far as is reasonably practicable, such measures as are necessary to ensure that the underpinning, sheet piling, bracing or other means of shoring —
is constructed in accordance with the design of the professional engineer who designed it; and
is safe for its intended use when completely constructed and if so, issue a certificate stating that the underpinning, sheet piling, bracing or other means of shoring is safe for its intended use.