A Comparison of Pull-out Capacity of Suction Anchors in Clay and Sand

作者：Du, Jiaqing; Du, Shouji^*; Wang, Zhi

来源：International Conference on Machinery, Electronics and Control Simulation (ICMECS), 2014-09-27 To 2014-09-28.

DOI：10.4028/www.scientific.net/AMM.614.613

• SPAR
• suction anchors
• pull-out capacity
• numerical analysis
• clay and sand
• comparison

With the oil and gas exploitation develop to the deep sea; offshore platform under extreme environment load needs more stable anchorage foundation. Based on the slender suction anchor of SPAR, three-dimensional numerical analysis method was presented to study the ultimate pull-out capacity. Based on the geological conditions from South China Sea, clay and sand was selected as soil conditions to make a comparison analysis. The effects of soil type, load positions, load angles and aspect ratio on the ultimate bearing pull-out resistance of the suction foundation were studied. The comparison analysis results indicated that the ultimate pull-out resistance of suction anchors in sand has a greater rise rate and achieve ultimate pull-out capacity need smaller displacement than in clay; load point and load angles have a great impact on the resistance and there is a critical aspect ratio under inclined loading in sand.

• 出版日期2014
• 单位上海交通大学