Advances in Civil Engineering / 2019 / Article / Tab 2

Research Article

Excavation Safety Modeling Approach Using BIM and VPL

Table 2

OSHA regulations related to excavation works.

DepthSoil typeSlope ratioProtection needed
Cave-insSafety egressFall

D < 5 ftVertical side 1 : 0NoNoNo
5 ft < D < 20 ftStable rockVertical side 1 : 0NoYesYes
Type A0.75 : 1YesYesYes
Type B1 : 1YesYesYes
Type C1.5 : 1YesYesYes
D > 20Consult P.EYesYesYes

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