Natural and anthropogenic rock collapse over open caves

Tony Waltham

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Publication Date

January 2007

Abstract

Natural rock collapse that reaches the ground surface to form a collapse doline is relatively rare in limestone karst. The anthropogenic karst geohazard is posed by the possibility of rock collapse when additional loading is imposed by engineering works directly over a known or unknown cave. An intact rock-cover thickness that exceeds half the cave width appears to be safe in most karst terrains formed in strong limestone. Guidelines suggest that drilling or probing prior to construction should prove sound rock to depths ranging between 3 and 7 m in most of the various types of karst.

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Article

Notes

Geological Society, London, Special Publications, Vol. 279.

Identifier

SFS0071928_00001

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