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Ralph Noddings
The only fatal accident from this cause occurred at Chaloner Ironstone Quarry, where a workman was killed by a fall of clay bearing. The clay forming the bearing was about 11 feet thick, and the usual practice is to kirve the base out for a depth of 2½ feet leaving pillars of clay about 5 feet apart for support. Piles are then driven in from above and the bearing forced away. In the present case the deceased had kirved under 2 feet in the centre, but not on either side, and after driving in two piles the clay refused to fall away. He then went in front of it to help it to fall and was caught by several hundredweights of clay which suddenly burst off. It was afterwards found that a thin bed of sand near the base had formed a line of weakness which no doubt accounted for the sudden rush.
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