【摘要】 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更多还原

【Abstract】 The dynamic changes of stress and strain around the shaft under the non-axial symmetrical loads during the excavation are analyzed with the finite element semi-analytical method based on the separated variable method. The changing laws of deformation and stress of surrounding rock are obtained. Moreover, an optimum method of the design and construction of the shaft lining is developed,which presents a new train of thought of the design and construction of the shaft and has important theory value and extensive appliance foreground. 8figs, 4refs.更多还原