采用基于分离变量法的有限元半解析法对立井在非轴对称荷载作用下开挖过程中的应力应变的动态变化情况进行了分析 ,得出了立井围岩位移应力随开挖的变化规律 ,并结合支护分析提出了井壁支护设计与施工的最优方法 ,为立井井筒的设计和施工提供了新的思路 ,具有重要的理论价值和广泛的应用前景 图 8,参 4 The semi-analytical method based on the method of separating variables was used to analyze the dynamic changes of the stress and strain of the shaft during excavation under the non-axisymmetric load. The displacement stress of the surrounding rock of the shaft was changed with the excavation. Combined with the support analysis, the optimal method of wellbore support design and construction is proposed, which provides a new idea for the design and construction of vertical wellbore, which has important theoretical value and broad application prospect.