Without assuming the form of unstrained state,the form of unstrained state corresponding to that of pre-stressed state can be obtained through this method directly.

该方法无需假定构零状态,而可以一次得到初状态(即预力态)的构施工放样尺寸(即零状态),通过分级加载该方法的精度进行了检验。

With project instance, this paper introduced the calculation procedure and method about lofting and designing the tunnel stringcourse with sweeping matrix vertical curve.

合工程实例,介绍了大半径竖曲线巷道腰线放样设计的计算步骤和方法。