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Keywords: protect employee
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Proceedings Papers

Paper presented at the ASSE Professional Development Conference, June 24–27, 2007
Paper Number: ASSE-07-0851
... installation underground installation operation excavation cave-in protect employee warning system hazard greatest hazard support system vibration shield stability depression protective system means Session No. 653 The 25 Greatest Hazards of Excavation Michael Hayslip, Esq., CSP, PE National...

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