Visual Measurement of Large Scale Well Sinking by Means of Close up Photogrammetry

Close up photogrammetry was applied to measuring the displacements of all the process of large scale well sinking by establishing visual digit close up photogrammetry system based on the PHOTO measuring analysis system and Auto CAD and Matlab software. And all the visual monitoring of well sinking, including the measuring of dynamic process of well sinking displacement, graphical display of dynamic properties, and multi users share of measuring information, was carried into effect on the Windows 95 interface. This method can raise the working efficiency of data processing in house for well sinking monitoring. And the research will provide experience for the auto monitoring of other well sinking in the future.