cave-in


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cave-in

[′kāv‚in]
(engineering)
References in periodicals archive ?
Still many of Poland's mines are dangerous, with methane gas that has led to a number of deadly explosions and cave-ins. So far this year, five miners including Sunday's casualty have been killed at different mines, according to the State Mining Authority.
Miners who have been trapped underground in past cave-ins say a social hierarchy already is being formed.
Engineers still must decide where to drill the larger hole without risking further cave-ins at the unstable mine.
Thirteen workers were killed in February when a methane explosion at a mine in northwest Turkey caused a cave-in.
For example, as noted in the 7 October 1998 The Atlanta Journal Constitution, OSHA cited two construction firms and proposed fines totaling $244,000 for safety violations in a trench cave-in that killed a 25-year-old worker.
"Our analysis so far indicates that 74% of those 34 deaths were due to soil cave-ins, and 75% showed no use of any kind of protective trench box or shield," said Devora, a former safety supervisor for a general contractor in Texas.
* Cases were selected for initial review if the fatal event was coded as an excavation or trenching cave-in (Occupational Injury and Illness Classification System [OIICS] event code 041); inhalation in enclosed, restricted, or confined space (OIICS event code 3411); depletion of oxygen from cave-in or collapsed material (OIICS event code 383); depletion of oxygen in other enclosed, restricted, or confined space (OIICS event code 384); the worker was employed in the Standard Industrial Classification (SIC) code 1794 (Excavation Work); or if: the case narrative contained one or more of the following keywords: "trench," "excav," "shaft," "ditch," or "tunnel."
Coal mining has always been an extremely dangerous occupation due to the risks of methane gas explosions, cave-ins and poisonous gas leakages.
"On March 7, OSHA found workers in a 7-foot deep vertical-walled excavation that lacked protection to prevent wall cave-ins, and a ladder every 25 feet to facilitate a swift and safe exit from the excavation.
Powershot Utility Construction Services of Nashua faces $64,700 in proposed fines from the Occupational Safety and Health Administration for alleged cave-in hazards at a North Conway worksite
The gas emissions and a cave-in were found on a 1,530-meter slope on the 3,776-meter mountain, but no volcanic gas was detected and other data also suggest the phenomenon is not related to volcanic activities, the agency said.
Department of Labor is seeking an administrative court order requiring Gerardi Sewer & Water Co., a Norridge, IL-based contractor, to provide a monthly report of its work locations to the Occupational Safety and Health Administration (OSHA), permit unannounced jobsite audits by qualified independent consultants and annually train workers on cave-in protection for the next two years.