This report provides a detailed analysis of engineering geology and rock mechanics, focusing on the critical aspects of weathering processes and their impact on granite rocks. It explores the mineralogical and property changes in granite due to weathering, including discontinuities, shear strength, and permeability. The report then delves into the geological composition of Hong Kong, examining the distribution of igneous, sedimentary, and metamorphic rocks, and the impact of faults and geological evolution. Furthermore, the report addresses the implications of dissolution cavities in foundations, discussing the formation of pinnacles, subsidence, and sinkholes, and their effects on the design and construction of structures in karstic environments. The study utilizes various tests like sieving, compaction, and X-ray diffraction, offering insights into the challenges faced by engineers in Hong Kong. The report highlights the challenges faced during the design and construction of foundations in Hong Kong due to the karstic nature of the rocks.
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