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Sudden loss of ground support
SCOSS has logged several incidents of unstable ground below structures where voids have opened up; so far without loss of life (UK), but pictures of the incidents show that safety could easily have been compromised, severely.
1 July 2017
CROSS Safety Alert
Region: CROSS-UK, CROSS-AUS, CROSS-US
Rotting plywood decking on grandstand
During visual structural inspections of temporary demountable grandstands, a walkway board failed when it was walked on.
31 May 2022
CROSS Safety Report
Report ID: 1092
Region: CROSS-UK
Control of temporary works excavation
Poor, high-water content excavated material, slipped into a 15-20m deep borrow pit. The material had slipped to the bottom of the pit partially burying excavation, crushing and screening equipment. If this slip had occurred during working hours, the impact could have been very serious.
17 November 2022
CROSS Safety Report
Report ID: 1146
Region: CROSS-UK
Incorrectly fixed sheets blow off parapet
This report concerns aluminium coping sheets that blew off the parapet of a block of flats under construction. The reporter says a fierce wind blew off several sheets which fell to the ground about 9m below. A building and a car were damaged but thankfully no one was hurt, although the potential for personal injury or death was significant.
25 May 2023
CROSS Safety Report
Report ID: 1180
Region: CROSS-UK
Long term risks for ground anchors
A reporter is concerned about the inspection and maintenance of ground anchors that are used for strategic flood defences.
1 October 2007
CROSS Safety Report
Report ID: 87
Region: CROSS-UK
Collapsed scaffolding
A reporter highlights how, following modest levels of snow fall in the winter, scaffolding erected in order to support a temporary roof collapsed inwards.
1 October 2019
CROSS Safety Report
Report ID: 730
Region: CROSS-UK
Lift pit excavation hazards
A reporter came across an unsafe deep excavation and asks how a geotechnical engineer views the risk of excavation collapse.
1 July 2019
CROSS Safety Report
Report ID: 821
Region: CROSS-AUS
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