岛礁海域工程勘察施工难点和对策

Difficulties and Countermeasures for Engineering Geological Drilling on the Island and Reefs Sea Area

从岛礁海域勘察施工影响因素出发,针对海滩、水下岸坡和浅海带不同地貌类型和地质条件分析了各地貌带的钻探施工难点和相应可采用的钻场类型,提出了对策措施,并介绍了西堠门大桥和岱山某工程海域勘察施工实践与成效。

According to the different geomorphologic types and geological conditions of sea beach, underwater slope and neritic zone, and based on the influencing factors of site investigation in the island and reefs sea area, the paper analyzed the drilling difficuhies and available types of drilling field with the countermeasures proposed. The paper also introduced the construction practice and the achievement of Xihoumen bridge and a project in Daishan.