Image MEWPSAFETY UK Copyright © 2016
MEWPs Temporary works (ground conditions and supporting structures)
The person in control of the site should supply relevant Information about the ground bearing capacity, terrain, gradient, base area, load bearing capability of supporting structures and any localised ground features, such as trenches, manholes and uncompacted backfill, which could lead to overturning.
BS 5975:2008 Code of Practice for temporary works procedures and the permissible stress design of falsework provides more detail on temporary works and the elements that should be included.
If operating on a precast or cast in-situ concrete slab, request the slab loading limits from the person in control of the site and check how this compares with the maximum weight of the MEWP and the maximum point load that it could exert on the floor. Has enough time been allowed for the concrete to cure?
Acknowledgement: The information shown above is adopted from HSE General Information Sheet No 6 (GEIS6) Crown Copyright © 2014