3200m钻机前开口井架整体稳定性分析

用局部结构具有柱型铰的三维空间刚架系统的力学模型和线弹性稳定理论,对3200m钻机前开口井架的整体稳定性进行的分析计算表明,井架的最小安全系数为2.83,大于许用安全系数2.2,能确保井架的稳定性,为前开口井架提供了设计数据。

Integral Stability Analysis of Open-Front Derricks

BY the mechanical model of three-dimensional rigid framedstructure with column hinges and the theory of linear elastic stability, the authors analyse the integral stability of the open-front derrick on rigs of 3200 meter drilling capacity, indicate that the minimum salty factor for stability is 2.83—larger than the allowable salty factor 2.2—and provide useful design parameters for open-front derrick design.