Instructors/Speakers Paul Chi Tak CHEUNG Chairman Profession Branch Geological Society of Hong Kong Abstract Hong Kong used about 270Mm3 of marine dredged sand from 1990 to 2003 to form land for the Chek Lap Kok Airport and port facilities, roads and various new town developments for housing and industry. The main sand reserves are Pleistocene fluvial deposits, the upper portions of which were largely reworked and laterally transported by early Holocene tidal currents. Economic sand reserves mostly occur where later Holocene mud deposition has been restricted by high tidal flows. Sand dredging proposals have been subjected to the environmental impact assessment process and in some instances the decision was taken not to extract certain sand deposits for environmental, ecological and ...

Instructors/Speakers Prof. Paulus P. Rahardjo Professor of Geotechnical Engineering Division Faculty of Engineering Universitas Katolik Parahyangan (Unpar) Indonesia Abstract The interpretation of CPTu for normally consolidated clay soils and slightly, or strongly overconsolidated soils have been published in many papers. For both conditions of soils (normally consolidated and overconsolidated clay), there is hydrostatic pore water pressure, however no initial excess pore water pressure exists. Hence the assumption that excess pore water pressure due to cone penetration only is valid. In soils where consolidation still on going which could be due to natural deposition of the soils or soft soils under reclamation fill material, the excess pore pressure still exists, which means that pior to penetration testing, the initial excess pore ...