一种地下壳体结构内力和变形的简化计算

Simplified Calculation of Internal Force and Deformation of a Underground Shell Structure

对锚喷与金属支架联合支护结构的内力和变形 ,本文根据壳体理论提出了一种简化力学模型 ,建立起它的微分方程并推导出简化计算公式。同时 ,结合工程实例对这种联合支护结构的内力和变形特点进行了分析 ,讨论了它的危险截面位置和强度设计的控制因素 。

After a simplified mechanics model for the internal force and deformation of the united supporting of bolt-shotcrete and steel arch has been put forward with the aid of the shell theory, the differential equations of the united supporting structure are derived, and the calculation formulas of its internal force and deformation are proposed. Moreover, the characteristics of the internal force and deformation of the united supporting structure are studied as a case. The position of dangerous section and control factor of strength design are discussed. The theory bases are provided for engineering design of the united supporting structure.