CLASSIFICATION AND ZONING OF MARBLE SITES - HKU Libraries

- 27 -A.ISITE ATable Al lists the MQD values of all the boreholes. Figure Al shows the boreholeratings and the bottom levels of the surface karst.trend.Contouring of the bottom levels would highlight two depressions along a east westBetween the two depressions are boreholes of rating > 5. Close examination of theMQD values at Table Al would show that this represents a deep cavity zone connecting thetwo depressions. From the engineering point of view, the site is easy to develope but someattention would be required for the part of foundation above the deep cavity zone at themiddle-northern part of the site.