THE EFFECT OF COLLAPSE OF UNDERGROUND OPENINGS ON GROUND SURFACE THROUGH MODEL EXPERIMENTS AND CASE HISTORIES

摘要

The effect of underground mining, particularly by long-wall mining, on the ground surface is well known. Thereare also many case histories on the formation of sinkholes by man-made underground openings and natural cavities inkarstic and volcanic areas. When new structures are to be built over or below existing natural or man-made cavities,the possible effect of collapse of underground openings on ground surface is very important for the design of newstructures. The authors present the outcomes of model tests and collected case histories on the effect of collapse ofunderground openings on ground surface. Furthermore, some guidelines are proposed how to evaluate such surfaceeffects in relation to the size and depth of underground openings.