【摘要】 本文依托武道高速子母岩隧道深大通风竖井施工工程，采用通用有限元Midas civil软件对选型的Ⅲ井架结构进行了建模分析，分析了井架杆件、天轮平台支撑梁的最大组合应力、最大剪应力和最大变形等，评估了井架及其基础的安全稳定性。有限元分析结果表明：井架杆件和天轮平台支撑梁的受力变形均满足要求，井架及其基础也满足稳定性要求。更多还原

【Abstract】 Based on the construction project of the deep and large ventilation shaft of the Zimuyan Tunnel of the Wudao Expressway, a modeling analysis was conducted on the selected Ⅲ shaft structure using the universal finite element Midas Civil software. The maximum combined stress, maximum shear stress and maximum deformation of the derrick rods and the support beams of the sheave platform were analyzed, and the safety and stability of the derrick and its foundation were evaluated. The finite element analysis results show that the stress and deformation of the derrick rods and the support beams of the sheave platform meet the requirements, and the derrick and its foundation also meet the stability requirements.更多还原