| 摘要 |
A geological mechanical computer is disclosed for displaying an analog of a stratum intersected by a borehole and determining the true dip and strike of the stratum from input information of the bearing and angle of inclination of the borehole and the structure angle and angle of orientation of the stratum with respect to the borehole. The computer has a stratum plane assembly mounted on a base for rotational movement about a vertical axis and pivotal movement about a horizontal axis. A shaft representing the borehole is operatively connected to a disc of the stratum plane assembly through a structure angle mechanism in which the shaft has a rotational axis that intersects the vertical axis and horizontal axis at a fixed intersection. A ring is rotatably mounted to the disc for rotation about the fixed reference in the plane of the stratum plane assembly. The ring has shaft elements extending therefrom having an axis coincident to the horizontal axis. A true dip pointer is radially affixed to one of the shaft elements for rotation about the shaft element. A protractor is freely suspended on the shaft element adjacent the pointer to visually display the true dip of the stratum plane assembly.
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