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摘要：
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宝钢马迹山矿石中转港工程中的外海大直径嵌岩桩施工是工程中的关键技术问题。本文结合马迹山嵌岩桩试桩工程中的实际情况，着重介绍施工期稳桩措施、外海大直径钢套管吊打、嵌岩成孔及嵌岩桩水下钢筋砼施工等一系列新技术、新工艺，为今后在外海无覆盖地区进行大直径嵌岩桩施工积累了宝贵的经验。
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The construction of offshore large diameter rock embedded piles is a key technical issue for Majishan Ore Transshipment Terminal at Baoshan Steel & Iron Corporation. On the basis of the experience in trial pile driving at Majishan site, the paper lays emphasis on the new techniques and procedures, employed during the construction of the terminal, for steadying piles during the pile driving operations, offshore handling of large diameter steel casing, rock cutting for pile embedment and underwater construction of reinforced concrete for rock embedded piles. Valuable experience has thus been accumulated for the construction of large diameter rock embedded piles in unsheltered offshore seas in the future.
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