不同地形的卷尺测量

A tape can rest directly on the ground when surveying smooth, level terrain with minimal underbrush. In these ideal conditions, the taping team—consisting of a head and rear tapeman—can work efficiently without additional equipment. The rear tapeman holds the tape at the starting point and guides the head tapeman toward a range pole using hand or voice signals to ensure proper alignment.

A plumb bob ensures accuracy when taping on sloping, uneven terrain or in dense underbrush by vertically aligning the tape with ground points. The tapeman holds the plumb bob over specific foot marks on the horizontally held tape, allowing precise marking of measurement points. This vertical alignment prevents errors caused by ground irregularities and maintains measurement integrity across varied terrain.

The breaking tape method involves holding the tape horizontally in sections while descending a slope. The head tapeman pulls the tape along the line and holds it horizontally from an intermediate point, using a plumb bob to mark specific locations. A taping pin is set at each marked point, then handed to the rear tapeman, and this incremental process repeats until reaching the zero end of the tape.

Holding the tape horizontally prevents ground interference and measurement errors on sloping or uneven terrain. When tape rests on uneven surfaces, it sags and follows ground contours, producing inaccurate distance readings. Horizontal positioning, combined with plumb bob alignment, ensures the tape measures the true horizontal distance between points, maintaining consistency in distance measurements by taping across varied topography.

The rear tapeman calls "tape" to signal the head tapeman to stop when the tape end reaches the rear position. The rear tapeman also uses hand or voice signals to align the head tapeman toward a range pole placed beyond the endpoint. This clear communication ensures both team members coordinate their positions accurately and maintain proper tape alignment throughout the measurement process.

The team uses taping pins to mark specific points along the slope while holding the tape horizontally. A plumb bob is aligned over each foot mark on the tape, and once the tape is stretched and leveled, the pin is set at that location. The rear tapeman holds the pin until the head tapeman arrives, then passes it along the line, ensuring each marked point is precisely positioned for the next measurement section.

The taping team uses a measuring tape, plumb bob, taping pins, and range poles to adapt to varying terrain. The plumb bob provides vertical alignment on uneven ground, taping pins mark measurement points on slopes, and range poles guide alignment across distances. Together, these tools enable the team to maintain measurement precision whether working on smooth level ground or challenging sloped and underbrush-covered terrain.