一、緒言隧洞襯砌的靜力计算,一般都是沿用溫克列尔的假定,即岩层的抗力是与它的沉陷成直线比例关系。溫克列尔的假定,是基于弹性压縮现象遵循着力的單独作用的原則。但实际正如許多試驗所阐明,抗力与沉陷之間的复杂关系,是与物理力学性質,垫层性質和厚度,传送荷重的面积及尺寸和应力的大小有关,因此,弹性抗力系数K不能認为是常数。自从达维 I. INTRODUCTION The static calculation of tunnel lining generally follows Winkel’s assumption that the resistance of rock formations is in a linear relationship with its sinking. Winkel’s assumptions are based on the principle that elastic compression follows a single, independent role. But in fact, as many experiments have shown, the complex relationship between resistance and subsidence is related to the physical and mechanical properties, the nature and thickness of the cushion, the area and the size and the size of the transmitted load, and therefore the elastic resistance coefficient K can not be considered Is constant. Since David