![Building engineering / Shoring / Trench / Subterranea / Excavation / Underground Service Alert / Construction / Architecture / Geotechnical engineering Building engineering / Shoring / Trench / Subterranea / Excavation / Underground Service Alert / Construction / Architecture / Geotechnical engineering](https://www.pdfsearch.io/img/10588119b70ce8262621ccb6cfc9a90f.jpg) Date: 2013-04-17 20:06:50Building engineering Shoring Trench Subterranea Excavation Underground Service Alert Construction Architecture Geotechnical engineering | | Codes of Safe Practices ! TRENCHING AND SHORING 1. Before digging, check the site for potential underground hazards including electrical conduits,
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