以中海油惠州千万吨炼油工程勘察成果为例,分析了大亚湾石油工业区岩石地基的工程特性,列出岩石地基的物理力学指标统计值,并同经验参考值进行了对比分析。同时分析了采用声波测试成果进行基岩风化带划分的必要性,并提出了可将基岩风化带定义为主层,然后按照不同岩性划分亚层的岩土工程分层原则。 Taking CNOOC Huizhou 10 million ton refinery exploration project as an example, the engineering characteristics of rock foundation in Daya Bay Petroleum Industrial Zone were analyzed. The statistic of physical and mechanical indexes of rock foundation was listed and compared with the empirical reference values. At the same time, the necessity of dividing the bedrock weathering zone by using the sound wave test results is analyzed. The principle of geotechnical engineering can be defined by defining the bedrock weathering zone as the main floor and then dividing the sub-floor by different lithologies.