摘要
为了比较自升式钻井平台筒型桩靴和传统桩靴在插桩过程中的力学性能,在相同截面积和插桩深度条件下分别对2种桩靴模型在饱和粘土和砂土中进行了插桩模拟试验。试验结果表明,在粘土中,筒型桩靴和传统桩靴的插桩阻力均随插桩深度的增加而增大,且插桩阻力最大值相近;在砂土中,筒型桩靴插桩阻力最大值是传统桩靴的0.62倍;筒型桩靴模型在砂土中插桩阻力最大值是在粘土中的4.11倍;传统桩靴在砂土中插桩阻力最大值是在粘土中的6.76倍。该研究结果可为海洋工程实际应用提供参考。
In order to comparatively analyze the mechanical properties of penetration process of spudcan and traditional caisson foundation of jack-up drilling platform, penetration test is been conducted in the saturated clay and sand with the two kinds of foundations with the same cross-sectional area and the penetration depth. The results show that, in clay, both the penetration resistances of the spudcan and the traditional caisson foundation increase with the increase of penetration depth, and the maximum resistances are similar. In sand, the maximum resistance of the spudcan foundation is 0. 62 times of the traditional caisson foundation. For the spudcan, the maximum penetration resistance in sand is 4. 11 times than in clay. For the traditional caisson, the maximum penetration resistance in sand is 6. 76 times than in clay. The study results could provide references for marine engineering practice.
出处
《石油机械》
2015年第5期67-71,共5页
China Petroleum Machinery
基金
中海油田服务股份有限公司科研项目"吸力锚设计计算及软件开发"(G1417CS-B12C041)
关键词
自升式钻井平台
筒型桩靴
传统桩靴
插桩阻力
插桩试验
jack-up drilling platform
inverted conical spudcan
traditional caisson
penetration resistance
penetration test
