Based on FEM structural computer calculation, the strength, rigidity and stability of the front opened drilling masts of two leg types,“H” type and tubular rectangle type, are analyzed and compared.
以有限元电算结果为基础，从强度、刚度和稳定性方面对工字钢和矩形管２种大腿型式的前开口井架的性能进行了综合分析和比较，得出了前开口井架的大腿宜采用矩形管的结论。