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Method for integrally dismantling discarded offshore jacket platform
The invention provides a method for integrally dismantling a discarded offshore jacket platform, which comprises the following steps: preparation work before dismantling and discarding: dismantling platform equipment and arranging a lifting point, and arranging a plurality of floating balls on the predetermined side surface of a jacket; the first floating crane ship is parked on the first side of the jacket platform, the second floating crane ship is parked on the second side, opposite to the first side, of the jacket platform with the jacket platform as the center, and the transportation barge is parked on the third side of the jacket platform; firstly, a first floating crane ship and a second floating crane ship are used for being matched with hoisting frame operation to hoist an upper module to a transportation barge at a time; according to the method, the workload of offshore cutting operation and underwater cutting operation of the jacket is greatly reduced, and the offshore working time of a demolition discarding project is shortened; meanwhile, the stress of the horizontal structural member of the jacket platform is effectively reduced.
本申请提供一种整体拆除弃置海上导管架平台的方法，包括拆除弃置前准备工作，包括拆除所述平台设备布置吊点，并在导管架的预定侧面上布置多个浮球；将第一浮吊船停靠在导管架平台的第一侧，以导管架平台为中心，将第二浮吊船停靠在与第一侧相对的导管架平台的第二侧，将运输驳船停靠在导管架平台的第三侧，先利用第一浮吊船和第二浮吊船配合吊装框架作业将上部组块一次性吊运至运输驳船；再利用第一浮吊船和第二浮吊船配合吊装框架作业将水面放倒后的导管架一次性吊装至运输驳船，本方法大量减少海上切割作业和导管架水下切割作业的工作量，缩短拆除弃置工程在海上工作时间，同时有效减少导管架平台水平结构件的受力。
Method for integrally dismantling discarded offshore jacket platform
The invention provides a method for integrally dismantling a discarded offshore jacket platform, which comprises the following steps: preparation work before dismantling and discarding: dismantling platform equipment and arranging a lifting point, and arranging a plurality of floating balls on the predetermined side surface of a jacket; the first floating crane ship is parked on the first side of the jacket platform, the second floating crane ship is parked on the second side, opposite to the first side, of the jacket platform with the jacket platform as the center, and the transportation barge is parked on the third side of the jacket platform; firstly, a first floating crane ship and a second floating crane ship are used for being matched with hoisting frame operation to hoist an upper module to a transportation barge at a time; according to the method, the workload of offshore cutting operation and underwater cutting operation of the jacket is greatly reduced, and the offshore working time of a demolition discarding project is shortened; meanwhile, the stress of the horizontal structural member of the jacket platform is effectively reduced.
本申请提供一种整体拆除弃置海上导管架平台的方法，包括拆除弃置前准备工作，包括拆除所述平台设备布置吊点，并在导管架的预定侧面上布置多个浮球；将第一浮吊船停靠在导管架平台的第一侧，以导管架平台为中心，将第二浮吊船停靠在与第一侧相对的导管架平台的第二侧，将运输驳船停靠在导管架平台的第三侧，先利用第一浮吊船和第二浮吊船配合吊装框架作业将上部组块一次性吊运至运输驳船；再利用第一浮吊船和第二浮吊船配合吊装框架作业将水面放倒后的导管架一次性吊装至运输驳船，本方法大量减少海上切割作业和导管架水下切割作业的工作量，缩短拆除弃置工程在海上工作时间，同时有效减少导管架平台水平结构件的受力。
Method for integrally dismantling discarded offshore jacket platform
一种整体拆除弃置海上导管架平台的方法
WAN YANXIANG (author) / ZHANG ZONGFENG (author) / WANG LIANG (author) / FENG QIN (author) / CHEN DA (author) / ZHANG LEI (author)
2023-09-26
Patent
Electronic Resource
Chinese
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