LUL - S1062
|Publication Date:||1 April 2015|
TW are defined in British Standard BS 5975 as "parts of the works that allow or enable construction of, protect, support or provide access to, the permanent works and which might or might not remain in place at the completion of the works".
This standard covers the design, fabrication and erection of temporary works associated with all asset groups on LU Infrastructure. Material requirements are covered in LU standard 1-085 and Civil Engineering Technical specifications T0001, T0002, T0005, T0006 and T0007.
TW can often be substantial and large scale and include, but not limited to such activities, as site set-up, mobilisation and accommodation, excavation and earthworks, cofferdams, sheet piling, retaining walls, scaffolding, decking, formwork and falsework, tunnelling, shafts and the control of ground water.
They can also constitute an essential element of the permanent construction, as in the case of the Primary Lining in a sprayed concrete tunnel or shaft, a working shaft or the framing to form an opening or timber heading. Structurally, they can also be independent works, such as working gantries, access systems, thrust pits and walls.
TW are usually removed after their function is complete, however in certain circumstances elements of the temporary works may be left in situ (residual temporary works) or incorporated into the permanent structure.
TW within LU stations shall be subject to the requirements set out in LU standards S1371, S1354 and this standard.
LU standard S1027 Site Hoarding, Fencing and Barriers set out the requirements for hoardings, fences or other barriers around work sites or other areas that need to be temporarily segregated.
This standard does not apply to third party (outside party) TW being undertaken outside LU Infrastructure. This is covered by LU standard S1023 and LU guidance document G0023.
The purpose of this Standard is to set down the requirements for Temporary Works (TW) on LU Infrastructure.