在电子计算机计算结果的基础上,本文对由井架及其人字架底脚支座的不均匀沉陷所带来的井架内力的变化进行了研究和探讨;根据强度理论和偏心压杆的稳定性理论对在不均匀沉陷下井架的强度和局部稳定性进行了分析,对今后井架电算模型的确定和井架的正确使用提出了几点意见。 Based on the computer calculation results, this paper studies and discusses the variation of the internal force of the derrick caused by the uneven subsidence of the derrick and its pedestal foot support. According to the strength theory and the stability of the eccentric strut The theory analyzes the strength and local stability of the derrick under the uneven subsidence, and puts forward some opinions on the future calculation of the derrick model and the correct use of the derrick.