Being lacking of understanding of behaviors of circular working shaft , the paper proposed theory about ring - beam ' s load - distribution calculations and analyzed the structural behavior of circular working shaft ( cws ) by the numbers from the standpoint of properties of structural style and stress incorporated with thoughts of shared load introduced to research of cws . first , regarding cws as structure of series of hypothetic horizontal circular rings and vertical beams , and considering cws ' s formation and development , the paper proposed load - distribution thoughts to solve cws ' s calculations . ring - beam calculation theory was put up and software cbtlmp1 . 0 was worked out based on the conditions of external applied load shared by rings and beams , and of deformation conformity 首先，本文提出用分载思想解决圆形工作井结构的计算分析问题，将圆形工作井结构看成是由一系列的假想的水平圆环和竖直梁组成的结构，考虑工作井形成过程及形成阶段与项进阶段的连续性，根据某一时刻相对于上一时刻外载增量由环与梁分担、环与梁在交叉处变位增量一致的条件将环计算理论与梁计算理论结合起来，据此建立了环?梁分载计算理论并研制了环?梁分载计算分析软件cbtlmpv1 . 0 。
Secondly , the paper analyzed the behavior of isotropic and orthogonal anisotropic materials " cws on the basis of above theory and software . regularities of cws " deformation inner force and shared load and earth pressure in excavating stage and driving stage were gained . regularities influenced by material features top beam excavating depth sidewall depth properties of soil layers rear backing and location of load were also obtained , especially rules of display degree exerted by circular and vertical loads were also obtained 通过分析，得到了形成阶段及顶进阶段圆形工作井的变位、结构内力、分载及土压的分布规律及材料性质、顶冠梁及围檩、开挖深度、井壁插深、土层性质、后靠背、顶载作用位置等因素对结构受力性状的影响规律，特别是得到了工作井在受力时结构环向与竖向承载作用发挥程度的规律。
