CLASSIFICATION AND ZONING OF MARBLE SITES - HKU Libraries
CLASSIFICATION AND ZONING OF MARBLE SITES - HKU Libraries
CLASSIFICATION AND ZONING OF MARBLE SITES - HKU Libraries
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- 20 -Insitustress-Joints[a)Before DissolutionShear and tensile stress zoneInsitu stress lost at surfacekarst zone and around smaltcavities(b)After DissolutionFigure 3 - Effect of Dissolution on Rock Mass QualityaDefine:Average RQD =LZ-LJMarble Rock Recovery Ratio (MR)where L£ - L j usually = 5mMQD = Average RQD x MRZero marble rockcore either cavity ordecomposednon-marble rock —(mPD)Figure 4 - Definition of Marble Quality Designation
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