›› 2007, Vol. 28 ›› Issue (9): 1779-1783.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Analysis of ultimate penetration depth of suction caissons in sand

WU Meng-xi1, ZHAO Jing1, SHI Zhong-ming2   

  1. 1. Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China; 2. China National Offshore oil Research Center, Beijing 100027, China
  • Received:2006-09-29 Online:2007-09-10 Published:2013-10-15

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Abstract: Suction caissons have been widely used in offshore structures. Method of installation analysis is very important research subject. This paper provides the characteristic of the seepage field of the foundation during suction installation, and gives relationship between the ratio of the suction descending on the inside wall to the overall suction versus penetration depth-diameter ratio (?1).The pump effect on ?1 is also analyzed and evaluated. A simple and convenient calculating method of both suction caisson penetration resistance and ultimate suction in sand ground is proposed. An equation of ultimate penetration depth-diameter ratio (UPDR) calculating of suction caisson in sand is proposed. The UPDR in sand with density from loose to extremely dense is analyzed; and it is about 2.1 to 2.5 while the effort to UPDR of the deadweight of the structure and the pumping effort to UPDR are not included in it.

Key words: suction caisson, seepage, penetration resistance, ultimate depth-diameter ratio

CLC Number: 

  • TU 413.5
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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