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Qaagi - Book of Why

Causes

Effects

to use safety measuresto preventexcavation collapse

What measures should be takento preventexcavation collapse

State adequate shoring by underpinning , sheet piling , bracing or other means of shoring shall be providedto preventcollapse of the excavation

77 : Where the depth of any excavation exceeds 1.5 metres or where the banks are undercut , adequate shoring by underpinning , sheet piling , bracing or other means of shoring shall be providedto preventcollapse of the excavation

2 ) Subject to paragraph ( 3 ) , where the depth of any excavation in a worksite exceeds 1.5 metres or where the banks are undercut , adequate shoring by underpinning , sheet piling , bracing or other means of shoring shall be providedto preventcollapse of the excavation

no measures in placeto preventcollapse of the excavation

erected in accordance with the design of a professional engineerto preventcollapse of the excavation

A vertical timber sheet pile usedto preventcollapse of an excavation

orderto preventcollapse of the excavation

VIBRATIONTRIGGEREDEXCAVATION COLLAPSE

steel casingto preventcollapse of excavation

Additionally , since sewer lines are often quite deep , requiring a deep excavation , considerable shoring is neededto preventcollapse of the excavation

his actionscontributedto the excavation collapse

accidents(passive) caused byaccidents

to death of worker A construction worker digging a ditch in Playa Matapalo died Monday evening when the walls of the excavation collapsedleadsto death of worker A construction worker digging a ditch in Playa Matapalo died Monday evening when the walls of the excavation collapsed

to injuries and deathsleadingto injuries and deaths

the last 10 years(passive) caused bythe last 10 years

injurythus preventinginjury

in damage to exposed U / G cables within a trench of depth greater than 1.2 mmay resultin damage to exposed U / G cables within a trench of depth greater than 1.2 m

structural failure(passive) caused bystructural failure

structural damage(passive) caused bystructural damage

in serious injuries for a young apprentice plumber working on the siteresultedin serious injuries for a young apprentice plumber working on the site

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