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Volume 35 Issue zk1
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LI Da-yong, FENG Ling-yun, GUO Yan-xue, CAO Li-xue. Numerical analysis of lateral bearing behaviors of skirted suction caissons[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk1): 33-38.
Citation: LI Da-yong, FENG Ling-yun, GUO Yan-xue, CAO Li-xue. Numerical analysis of lateral bearing behaviors of skirted suction caissons[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk1): 33-38.
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Numerical analysis of lateral bearing behaviors of skirted suction caissons

  • 1. Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Qingdao 266590, China; 2. Shandong University of Science and Technology, Qingdao 266590, China

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  • Received Date: March 01, 2013
  • Published Date: July 18, 2013
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    • Abstract
  • The skirted suction caisson consisting of a main structure and a skirted structure is a novel foundation. The lateral bearing behaviors of the skirted suction caisson in saturated sand are investigated by using the finite element method. The skirted suction caisson is subjected to lateral monotonic and cyclic loads, and the corresponding load-deformation curves are obtained. The relationships among deformation of foundations and various amplitudes and frequencies are examined. The results show that the lateral bearing capacity of the skirted suction caisson subjected to monotonic horizontal load increases by about 28.6%, and the deflection is effectively reduced to half of that compared to the conventional suction caisson. Under cyclic lateral load, the horizontal displacement of both types of foundations increases with the increase of the amplitude and frequency. However, the lateral displacement of the skirted suction caissons reduces by about 40% compared with that of the traditional suction caisson. Thus, the skirted suction caisson is very suitable to act as foundations of offshore wind turbines to work serviceably.
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    • References (1)
  • ISKANDER M,EI-GHARBAWY S. Performance of suction caissons in sand and clay[J]. Can Geotech, 2002, 39: 576-584.
    BYRNE B W,HOULSBY G T,MARTIN C. Suction caisson foundations for offshore wind turbines[J]. Wind Engineering, 2002, 26(2): 145-155.
    李大勇,都 浩,孙宗军. 海底裙式吸力锚: 中国, ZL200920239914.8[P]. 2010.(LI Da-yong,DU Hao,SUN Zong-jun. Offshore skirted suction anchors: China, ZL200920239914.8[P]. 2010. (in Chinese))
    李大勇,王 梅,刘小丽. 离岸裙式吸力基础在砂土地基中沉贯性研究[J]. 海洋工程, 2011, 1(29): 111-115; 148. (LI Da-yong, WANG Mei, LIU Xiao-li. Behavior of installation of offshore skirted suction foundation in sand[J]. The Ocean Engineering, 2011, 1(29): 111-115; 148. (in Chinese))
    李大勇,刘小丽. 海上风电塔架基础的新型吸力锚研发[J].海洋技术, 2011, 30(3): 83-87.(LI Da-yong,LIU Xiao-li. A novel type suction anchors for offshore wind turbines[J]. Ocean Technology, 2011, 30(3): 83-87. (in Chinese))
    李大勇,曹立雪,高 盟,等. 水平荷载作用下裙式吸力桶形基础承载性能研究[J]. (海洋工程), 2013, 31(1): 67-73.(LI Da-yong,CAO Li-xue,GAO Meng,et al. Bearing capacity of skirted suction caisson in sand under horizontal monotonic /cyclic loading[J]. The Ocean Engineering, 2013, 31(1): 67-73. (in Chinese))
    HOULSBY G T,BYRNE B W. Suction caisson foundations for offshore wind turbines and anemometer masts[J]. Wind Engineering, 2000, 24(4): 249-255.
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    王建华,杨海明. 软土中桶型基础水平循环承载力的模型试验[J]. (岩土力学), 2008, 29(10): 2606-2612.(WANG Jian-hua,YANG Hai-ming. Model tests on horizontal cyclic bearing capacity of bucket foundations in soft clays[J]. Rock and Soil Mechanics, 2008, 29(10): 2606-2612. (in Chinese))
    HOULSBY G T,BYRNE B W. Design procedures for installation of suction caissons in sand[J]. Geotechnical Engineering, 2005, 158(GE3): 135-144.
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