异点双站测高在超高建筑验收测量中的应用

Application of Two Station Altimetry with Different Points in the Acceptance Measurement of Super High Building

竣工验收测量要求测定各类建筑物高度,针对当前超高建筑物测高效率低下问题,本文提出了异点双站测高方法,用以测定超高建筑物高度。该法基于三角高程测量,通过在互不通视的相异两点分别测定超高建筑物顶底高程,取其高差中数作为高度观测值。经理论分析,该法可将测高误差控制在4 mm以内。实验证明,该法的测高精度优于传统的无定线普通钢尺测高和有定线普通钢尺测高,且具有较高观测效率,是一种集精度效率于一体的有效测高方法。

All kinds of building height should be determined for completion and acceptance survey.For the problem of low efficiency in super high building height measurement currently,this paper presented a two station altimetry with different points to measure the height of super high buildings.The method is based on trigonometric leveling,the height from top to bottom of high building was measured through the two points that they were not visible,the average value was taken as the building height.By theoretical analysis,the method is within 4mm height measurement error.Experiments showed that this method is superior to the traditional height measure accuracy with alignment or without alignment.The method is both with high efficiency and altimetry precision.