Baum Station - A New Pile Drivng and Drilling Navigation System-Paper

Paper

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The paper presents Baum Station, a pile-driving and drilling navigation system that combines a conventional total station with a concentric-circle reticle called Baum. By aligning a circle with the edges of a cylindrical object, an operator can determine points along its centerline. Measurements of two such points allow the system to calculate the object’s central axis, position, and inclination.<br /><br />Unlike conventional methods that use two transits or require workers to approach piles with angle meters, Baum Station can measure from a distance with one operator and one instrument. It sends measurement data to a PDA in the piling machine’s operating area, where software calculates deviations and tilt and displays correction values in real time. Measurements are also recorded for construction tracking.<br /><br />Tests found that measurement accuracy improves as the instrument moves closer to the target. In a pile-driving trial from about 40 metres away, measured pile deviations were up to roughly 30 mm, with measurement variability of up to about 10 mm on the horizontal axes. Pile movement during driving increased measurement errors compared with measurements of a stationary pile.<br /><br />The system offers safer, more efficient, and more consistent monitoring than conventional approaches, while reducing instrument repositioning and preserving a chronological measurement record. It can be used for both vertical and inclined piles, potentially supporting wider adoption of inclined pile foundations.

Keywords

Baum Station

pile-driving

drilling navigation

total station

concentric-circle reticle

centerline measurement

central axis

pile inclination

real-time correction

construction tracking