RISK ANALYSIS OF JACKET PLATFORMS DURING INSTALLATION ON SEA  

作　　者：Li, Jianchao  Hu, Ruihua 

机构地区：[1] China Jilin Int Engineering, Designing Inst, Changchun, China

出　　处：《China Ocean Engineering》1990年第2期199-207,共9页中国海洋工程（英文版）

摘　　要：In this paper, the uncertainty of environmental loads and soil resistance is analyzed, and the wave and current loads acting on a jacket during the unpiled installation phase are converted to its foundation loads. With a probability model of soil resistance, risk applied to the design of temporary seafloor support of a platform and the risk of failure, or probability of horizontal sliding, tilting and ovrturning can be pridicted. Thereby, optimum design and installation procedure may be chosen according to safety and economical factors. A Fortran program based on the model is developed. The application of the program to a jacket in South China Sea is described.In this paper, the uncertainty of environmental loads and soil resistance is analyzed, and the wave and current loads acting on a jacket during the unpiled installation phase are converted to its foundation loads. With a probability model of soil resistance, risk applied to the design of temporary seafloor support of a platform and the risk of failure, or probability of horizontal sliding, tilting and ovrturning can be pridicted. Thereby, optimum design and installation procedure may be chosen according to safety and economical factors. A Fortran program based on the model is developed. The application of the program to a jacket in South China Sea is described.

关 键 词：ECONOMICS FOUNDATIONS Soil Structure Interaction PROBABILITY 

分 类 号：P7[天文地球—海洋科学]