1引言 在大口径竖井的建造过程中,往往需要在不同的深度上测量井的各种参数(诸如:井半径、井心坐标、井轴倾斜程度)及井壁形状,以保证建成的竖井能满足设计的要求。一般而言,竖井内总是充满水的,因此可以采用声学的方法来测量竖井的参数和井壁的形状。 如图1所示,设坐标原点在 1 Introduction In the construction of large-diameter shafts, it is often necessary to measure various parameters of the well (such as the radius of the well, the coordinates of the well axis, and the inclination of the shaft axis) and the shape of the shaft wall at different depths to ensure that the built shaft energy Meet the design requirements. In general, the shaft is always filled with water so that the parameters of the shaft and the shape of the shaft wall can be measured acoustically. As shown in Figure 1, set the origin of coordinates in