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EAST COAST LINE.

HUGE BLASTING CHARGE. WAIIII, Monday.—Blasting operations involving the use of nearly two tons of explosives were successfully carried out at the Public Works Department quarry nt Athenree to-day by Mr J. Leggo, New Zealand representative of Nobels, Ltd. The blasting of huge areas in one big shot- is not a new departure at GovernnVent quarries. Experience has shoiYn that it is cheaper in the long run to bring down a hillside in one big explosion than to be continually blasting, thus wastingtime. Tile area undermined was the steep square-faced end of a short spur. Nearly two tons of'biasing gelatine, the most powerful engineering explosive known to modern science, was encased in solid' concrete in a chamber driven for a length of 50ft in the hillside. The shot was fired by Mr Leggo at 3.30 p.m., in the presence of a large number of Government and mining officials, and was completely successful, about 12.000 tons of stone being dislodged. The metal will be used for loading purposes and for railway ballasting.

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Permanent link to this item

https://paperspast.natlib.govt.nz/newspapers/PBH19240731.2.35

Bibliographic details

Poverty Bay Herald, Volume L, Issue 16496, 31 July 1924, Page 5

Word Count
173

EAST COAST LINE. Poverty Bay Herald, Volume L, Issue 16496, 31 July 1924, Page 5

EAST COAST LINE. Poverty Bay Herald, Volume L, Issue 16496, 31 July 1924, Page 5