适用于潮流能电站的新型模块式嵌岩灌注桩基础结构的应用
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摘要
近年来,潮流能能量转换技术发展迅速,但大型潮流发电机组基础结构方面的研究和应用还并不多见。针对潮流能电站基础结构在抗弯抗剪强度、桩径尺寸方面的特殊要求,结合我国潮流能富集区海底多为浅覆盖层或裸露基岩、且地形复杂的情况,提出了一种新型模块式嵌岩灌注桩基础结构。该基础结构的嵌岩灌注桩通过在桩内布置环形钢板箍和钢筋束来增强抗剪抗弯能力,使其在常规桩径即可满足潮流能电站的支撑要求,减少了对发电水流断面的阻挡;各主体灌注桩可通过横撑、纵撑和斜撑连接构成模块式基础,以适应不同地形条件、不同机组数量和安装方式的要求。新型模块式嵌岩灌注桩基础结构在LHD联合动能公司3.4 MV潮流发电项目中进行了首次应用,获得了良好的使用反馈。
China has huge reserves of tidal current energy resources, and related energy conversion technologies have developed rapidly in recent years. However, the research and application on the support structure of largescale tidal current power stations is still relatively rare. The seabed of China's tidal current energy enrichment areas is mostly shallow cover or bare bedrock, featured by complex terrain. Meanwhile, the foundation of tidal current power station has special requirements for bending and shear strength and pile diameter. Aiming at solving these problems, a novel modular foundation with rock-socketed cast-in-place piles is proposed for tidal current power stations. The rock-socketed cast-in-place piles of the foundation can enhance the bending and shear strength by arranging the annular steel plate hoops and steel bar bundles inside the piles. In this way, the support requirements of tidal current power station can be met by conventional pile diameter, with the blockage of flow cross section for power generation reduced. The main steel casings can form a modular foundation through cross struts, vertical struts and diagonal struts in order to adjust different terrain conditions, turbine numbers and installation methods. The modular foundation with rock-socketed cast-in-place piles was firstly applied in the LHD 3.4 MV Tidal Power Station Project, obtaining good feedback in real application.
China has huge reserves of tidal current energy resources, and related energy conversion technologies have developed rapidly in recent years. However, the research and application on the support structure of largescale tidal current power stations is still relatively rare. The seabed of China's tidal current energy enrichment areas is mostly shallow cover or bare bedrock, featured by complex terrain. Meanwhile, the foundation of tidal current power station has special requirements for bending and shear strength and pile diameter. Aiming at solving these problems, a novel modular foundation with rock-socketed cast-in-place piles is proposed for tidal current power stations. The rock-socketed cast-in-place piles of the foundation can enhance the bending and shear strength by arranging the annular steel plate hoops and steel bar bundles inside the piles. In this way, the support requirements of tidal current power station can be met by conventional pile diameter, with the blockage of flow cross section for power generation reduced. The main steel casings can form a modular foundation through cross struts, vertical struts and diagonal struts in order to adjust different terrain conditions, turbine numbers and installation methods. The modular foundation with rock-socketed cast-in-place piles was firstly applied in the LHD 3.4 MV Tidal Power Station Project, obtaining good feedback in real application.
引文
[1] Borthwick A G L. Marine renewable energy seascape[J]. Engineering, 2016,2(1):69-78.
[2]金翔龙.“十三五”期间我国海洋可再生能源发展的几点思考[J].海洋技术学报, 2016,35(5):1-4.JIN Xiang-long. Several considerations on the development of China's marine renewable energy industry during the 13th Five-Year plan period[J]. Journal of Ocean Technology, 2016,35(5):1-4.
[3]刘伟民,麻常雷,陈凤云,等.海洋可再生能源开发利用与技术进展[J].海洋科学进展, 2018,36(1):1-18.Liu Weimin, Ma Changlei, Chen Fengyun, et al. Exploitation and technical progress of marine renewable energy[J]. Advances in Marine Science, 2018,36(1):1-18.
[4]张理,李志川.潮流能开发现状、发展趋势及面临的力学问题[J].力学学报, 2016(5):1019-1032.Zhang Li, Li Zhichuan. Development status, trend and the problems of mechanics of tidal current energy[J]. Chinese Journal of Theoretical and Appiled Mechanics, 2016(5):1019-1032.
[5]刘玉新,王海峰,王冀,等.舟山地区潮流能开发利用现状及对策建议[J].海洋开发与管理, 2016,33(8):77-79.Liu Yuxin, Wang Haifeng, Wang Ji, et al. Utilization status and suggestions on development of tidal current energy in Zhoushan area[J].Ocean Development and Management, 2016,33(8):77-79.
[6]国家海洋局.国家海洋局关于印发《海洋可再生能源发展“十三五”规划》的通知[EB/OL].[2018/05/25]. http://www.soa.gov.cn/zwgk/zcgh/kxcg/201701/t20170112_54473.html.State Oceanic Administration. Notice of State Oceanic Administration on printing and distributing"The 13th Five-Year Plan for the Development of Marine Renewable Energy"[EB/OL].[2018/05/25]. http://www.soa.gov.cn/zwgk/zcgh/kxcg/201701/t20170112_54473.html.
[7]张亮,李新仲,耿敬,等.潮流能研究现状2013[J].新能源进展, 2013(01):53-68.Zhang Liang, Li Xinzhong, Geng Jing, et al. Tidal current energy update 2013[J]. Advances in New and Renewable Energy, 2013(01):53-68.
[8]谢宇.竖轴潮流能水轮机水动力性能的研究与实验[D].大连:大连理工大学, 2016.Xie Yu. Research and experiments on the hydrodynamic performance of vertical axis tidal current turbine[D]. Dalian:Dalian University of Technology, 2016.
[9]张亮,尚景宏,张之阳,等.潮流能研究现状2015———水动力学[J].水力发电学报, 2016(02):1-15.Zhang Liang, Shang Jinghong, Zhang Zhiyang, et al. Tidal current energy update 2015-Hydrodynamics[J]. Journal of Hydroelectric Engineering, 2016(02):1-15.
[10] Coiro D P, De Marco A, Nicolosi F, et al. Dynamic behaviour of the patented kobold tidal current turbine:numerical and experimental aspects[J]. Acta Polytechnica, 2005,45(3).
[2]金翔龙.“十三五”期间我国海洋可再生能源发展的几点思考[J].海洋技术学报, 2016,35(5):1-4.JIN Xiang-long. Several considerations on the development of China's marine renewable energy industry during the 13th Five-Year plan period[J]. Journal of Ocean Technology, 2016,35(5):1-4.
[3]刘伟民,麻常雷,陈凤云,等.海洋可再生能源开发利用与技术进展[J].海洋科学进展, 2018,36(1):1-18.Liu Weimin, Ma Changlei, Chen Fengyun, et al. Exploitation and technical progress of marine renewable energy[J]. Advances in Marine Science, 2018,36(1):1-18.
[4]张理,李志川.潮流能开发现状、发展趋势及面临的力学问题[J].力学学报, 2016(5):1019-1032.Zhang Li, Li Zhichuan. Development status, trend and the problems of mechanics of tidal current energy[J]. Chinese Journal of Theoretical and Appiled Mechanics, 2016(5):1019-1032.
[5]刘玉新,王海峰,王冀,等.舟山地区潮流能开发利用现状及对策建议[J].海洋开发与管理, 2016,33(8):77-79.Liu Yuxin, Wang Haifeng, Wang Ji, et al. Utilization status and suggestions on development of tidal current energy in Zhoushan area[J].Ocean Development and Management, 2016,33(8):77-79.
[6]国家海洋局.国家海洋局关于印发《海洋可再生能源发展“十三五”规划》的通知[EB/OL].[2018/05/25]. http://www.soa.gov.cn/zwgk/zcgh/kxcg/201701/t20170112_54473.html.State Oceanic Administration. Notice of State Oceanic Administration on printing and distributing"The 13th Five-Year Plan for the Development of Marine Renewable Energy"[EB/OL].[2018/05/25]. http://www.soa.gov.cn/zwgk/zcgh/kxcg/201701/t20170112_54473.html.
[7]张亮,李新仲,耿敬,等.潮流能研究现状2013[J].新能源进展, 2013(01):53-68.Zhang Liang, Li Xinzhong, Geng Jing, et al. Tidal current energy update 2013[J]. Advances in New and Renewable Energy, 2013(01):53-68.
[8]谢宇.竖轴潮流能水轮机水动力性能的研究与实验[D].大连:大连理工大学, 2016.Xie Yu. Research and experiments on the hydrodynamic performance of vertical axis tidal current turbine[D]. Dalian:Dalian University of Technology, 2016.
[9]张亮,尚景宏,张之阳,等.潮流能研究现状2015———水动力学[J].水力发电学报, 2016(02):1-15.Zhang Liang, Shang Jinghong, Zhang Zhiyang, et al. Tidal current energy update 2015-Hydrodynamics[J]. Journal of Hydroelectric Engineering, 2016(02):1-15.
[10] Coiro D P, De Marco A, Nicolosi F, et al. Dynamic behaviour of the patented kobold tidal current turbine:numerical and experimental aspects[J]. Acta Polytechnica, 2005,45(3).