| http://www.w3.org/ns/prov#value | - t strong enough to support the sides of the excavation in question; (d) must ensure that no load, material, plant or equipment is placed or moved near the edge of any excavation where it may cause its collapse and consequently endangers the safety of any person, unless precautions such as the provision of sufficient and suitable shoring or bracing are taken to prevent the sides from collapsing; (e
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