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A platform for research: civil engineering, architecture and urbanism
Construction method for anti-scouring structure of offshore wind power foundation
The invention discloses a construction method for an anti-scouring structure of an offshore wind power foundation. The construction method comprises the following steps that S1, a pile casing and a bottom protection layer are transported to a construction site through a transport ship and are connected and fixed into an integral structure; S2, a crane of a crane ship is used for hoisting the integral structure to the position above the offshore wind power foundation, and after the central axis of each through hole formed in the bottom protection layer is kept to coincide with the central axis of each wind power pile forming the offshore wind power foundation one by one, the integral structure is stably lowered to the mud surface position through the crane; S3, the pile casing stably sinks into seabed soil by means of the dead weight of the pile casing or a pressurization mode; and S4, a plurality of rock blocks, prefabricated blocks and/or bagged sand bags are evenly laid on geotechnical cloth of the bottom protection layer to form an on-pressure protection block layer. The construction method is simple and easy to implement, seabed scour under complex sea conditions and complex environments can be effectively prevented, instability of the offshore wind power foundation structure is avoided, the manufacturing cost and the construction cost of application facilities of the offshore wind power foundation structure are low, and therefore, the construction method has good market application and popularization prospects.
本发明公开了一种海上风电基础防冲刷结构施工方法，步骤如下：S1、采用运输船将护筒以及护底层运输至施工场地并连接固定为一个整体结构；S2、利用起重船吊机起吊整体结构至海上风电基础上方并保持护底层上开设的各通孔的中轴线与形成海上风电基础的各风电桩的中轴线分别一一重合后，吊机平稳下放整体结构至泥面位置；S3、依靠护筒自重或加压的方式使护筒平稳沉入至海底泥土中；S4、向护底层的土工布上均匀铺设若干个块石、预制块体和/或袋装沙袋，形成在压护块体层；该施工方法简单易行，可有效防止复杂海况及复杂环境下的海底冲刷，避免海上风电基础结构失稳，且其应用设施的制造成本和施工造价成本均较低，具有很好的市场应用和推广前景。
Construction method for anti-scouring structure of offshore wind power foundation
The invention discloses a construction method for an anti-scouring structure of an offshore wind power foundation. The construction method comprises the following steps that S1, a pile casing and a bottom protection layer are transported to a construction site through a transport ship and are connected and fixed into an integral structure; S2, a crane of a crane ship is used for hoisting the integral structure to the position above the offshore wind power foundation, and after the central axis of each through hole formed in the bottom protection layer is kept to coincide with the central axis of each wind power pile forming the offshore wind power foundation one by one, the integral structure is stably lowered to the mud surface position through the crane; S3, the pile casing stably sinks into seabed soil by means of the dead weight of the pile casing or a pressurization mode; and S4, a plurality of rock blocks, prefabricated blocks and/or bagged sand bags are evenly laid on geotechnical cloth of the bottom protection layer to form an on-pressure protection block layer. The construction method is simple and easy to implement, seabed scour under complex sea conditions and complex environments can be effectively prevented, instability of the offshore wind power foundation structure is avoided, the manufacturing cost and the construction cost of application facilities of the offshore wind power foundation structure are low, and therefore, the construction method has good market application and popularization prospects.
本发明公开了一种海上风电基础防冲刷结构施工方法，步骤如下：S1、采用运输船将护筒以及护底层运输至施工场地并连接固定为一个整体结构；S2、利用起重船吊机起吊整体结构至海上风电基础上方并保持护底层上开设的各通孔的中轴线与形成海上风电基础的各风电桩的中轴线分别一一重合后，吊机平稳下放整体结构至泥面位置；S3、依靠护筒自重或加压的方式使护筒平稳沉入至海底泥土中；S4、向护底层的土工布上均匀铺设若干个块石、预制块体和/或袋装沙袋，形成在压护块体层；该施工方法简单易行，可有效防止复杂海况及复杂环境下的海底冲刷，避免海上风电基础结构失稳，且其应用设施的制造成本和施工造价成本均较低，具有很好的市场应用和推广前景。
Construction method for anti-scouring structure of offshore wind power foundation
一种海上风电基础防冲刷结构施工方法
CHEN QIANG (author) / BIE SHE'AN (author) / ZHANG PEILIANG (author) / DING WENZHI (author) / HE FUBO (author) / XIAO JISHENG (author) / CHU YANCHUN (author) / YI ZHEN (author) / TIAN XIN (author) / YANG LIHONG (author)
2021-09-14
Patent
Electronic Resource
Chinese
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