精确模拟土壤反力对桩靴性能影响的研究

Study on soil reaction on performance of spudcan based on fine simulation soil reaction

传统自升式钻井平台桩靴设计的方法,仅仅将土壤反作用力作为一个确定值,施加到桩靴上,并未考虑到桩靴与土壤相互作用过程中,土壤的性质的变化及变形对桩靴作用的影响。文章着重研究固体(土壤)力学对桩靴结构力学的影响。通过经验理论分析,并借助有限元精确模拟土壤,进行土壤对桩靴影响的细化研究。通过对比分析,得出对土壤的细化研究后,桩靴性能可以得到提高和优化的结论。

The conventional design method sets soil＇s reaction as constant exerting on spudcan,the soil actual variation can not be considered in this process.In this paper,the interaction of solid mechanics and spudcan structure mechanics is studied.By empirical theory analysis and using FE method simulating soil activity,the reaction of soil on spudcan design result is finely studied.The results show that the spudcan＇s performance can be increased and optimized by compared study above.