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首页> 外文会议>16th International Conference on Port and Ocean Engineering Under Arctic Conditions Vol.1 Aug 12-17, 2001 Ottawa, Ontario, Canada >THE NORTHSTAR ON-ICE OPERATION
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THE NORTHSTAR ON-ICE OPERATION

机译：北极星冰上行动

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摘要

During the winter of 1999-2000 BP Exploration (Alaska), Inc. constructed a gravel island approximately 10km (6 miles) offshore in 11m (37 ft.) of water to develop the Northstar oilfield lease. At the same time two 250mm or 10 inch pipelines were installed from shore to the island. Two floating sea ice roads were constructed to haul gravel for the island building and to support the pipe assembly and installation. The floating gravel haul road supported approximately 20,000 trips by tracks with a gross vehicle weight (GVW) of 95 tonnes (210,000 lb.) carrying gravel to the island plus heavy Manitowoc cranes and other similar loads. The pipeline road was required to support all operations necessary to the installation of the pipeline, including cutting and removing ice blocks for a trench through the ice, support of the backhoes to excavate the pipeline trench into the seabed, and assembly and lowering of the pipe itself. A trench backfill operation caused approximately 8,000 truckloads weighing each about 80 tonnes (180,000 lbs.) to travel the road. Careful control was implemented and the massive on-ice operation was carried out successfully between February and April of 2000 without one ice induced incident.
机译：在1999年至2000年冬季，BP Exploration（Alaska），Inc.在11m（37 ft。）的水面中，在离岸约10公里（6英里）​​处建造了一个砾石岛，以开发Northstar油田租约。同时，从岸到岛安装了两条250毫米或10英寸的管道。修建了两条浮动的海冰路，以运送砾石用于岛上建筑物并支持管道的组装和安装。浮动的砾石运输道路支持大约20,000次铁轨旅行，车辆总重（GVW）为95吨（210,000磅），将砾石运送到岛上，再加上重型Manitowoc起重机和其他类似负载。管道道路需要支持管道安装所需的所有操作，包括切割和移除用于穿越冰层的沟渠的冰块，支撑挖掘铲以将管道沟渠挖掘到海床中以及组装和降低管道本身。一次沟槽回填操作使大约8,000辆卡车重约80吨（180,000磅），每辆卡车都在道路上行驶。在2000年2月至4月之间，我们进行了认真的控制并成功进行了大规模的冰上作业，没有发生任何冰块引发的事故。

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