安全第 1266 / 1632 题

Section 1541(i) requires a support system such as shoring, bracing or underpinning in which situation?

a.A spoil pile set back four feet from the edge
b.A trench cut through backfilled utility trench
c.A sidewalk alongside the excavation at grade
d.An excavation below an adjacent building's footing

解析

Section 1541(i)(1) requires support systems, shoring, bracing or underpinning wherever excavation endangers the stability of adjoining buildings, walls or other structures, and (i)(2) applies it specifically where the excavation goes below the base or footing of a foundation or retaining wall. The other three are real conditions governed by other rules. A spoil pile at four feet already clears the two-foot minimum in (j)(2) and creates no support duty. Previously disturbed soil matters a great deal, but through Appendix A - it forces the material into Type C and flattens the required slope - not through (i). And (i)(3) bars UNDERMINING sidewalks and pavements; one sitting alongside at grade and not undercut is not undermined.

法律依据: 8 CCR §1541(i)(1)-(3); §1541(j)(2); §1541.1 Appendix A

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