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Review of geological aspects of slope engineering

机译：边坡工程地质方面的回顾

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摘要

The dominant slope-forming materials in Hong Kong, namely colluvium, saprolitic soils and weathered granitic and volcanic rocks, are inherently variable. The importance of appropriate geological input in local slope engineering has been recognised for over 40 years. Recent improvements in geological knowledge and developments in geological aspects of site investigation, slope design and construction practice are reviewed, with emphasis on understanding of landslide mechanisms and detection of potentially adverse ground conditions. Most of these improvements have arisen from systematic landslide investigations, or as a result of follow-up research and development studies. There is scope for further enhancement of practice in several areas, including appraisal of the influence of discontinuities and transient adverse groundwater conditions on slope stability, characterisation of saprolites and colluvial soils in terms of engineering properties, site inspection/mapping during ground investigation and for Engineer Inspections in slope maintenance programmes, verification of ground conditions assumed in prescriptive design work, and risk assessment of landsliding on natural terrain.
机译：香港主要的斜坡形成材料，即坡地，腐殖质土壤和风化的花岗岩和火山岩，具有内在的可变性。 40多年来，人们已经认识到适当的地质输入在当地边坡工程中的重要性。回顾了地质知识的最新进展以及现场调查，边坡设计和施工实践的地质方面的发展，重点是对滑坡机理的了解和潜在不利地面条件的发现。这些改进大部分来自系统的滑坡调查，或者是后续研究和开发研究的结果。在几个领域还有进一步改进实践的空间，包括评估不连续性和短暂的不利地下水条件对边坡稳定性的影响，根据工程性质表征腐泥土和坡土的特性，在地面调查期间进行现场检查/制图以及为工程师服务检查斜坡维修计划，验证规范设计工作中假定的地面条件以及对自然地形上的滑坡进行风险评估。

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