圆心设站测设曲线的实用方法研究

Study of Practical Method for Survey and Design the Curve on the Center

道路工程弯曲的地方一般需要加设缓和曲线和圆曲线作为直线道路的链接,对该类道路曲线工程,常用自由设站极坐标法对其进行详细测设。而基于自由设站极坐标法测设带有缓和曲线的曲线基础上,考虑带有缓和曲线的曲线测设中圆曲线圆心的特殊性,建立了将仪器架设在圆曲线圆心点上,采用偏角法一次性完成带有缓和曲线的曲线中线测设的可行性数学模型,并分析其原理和测设方法。结合算例验证了该方法的可行性和实用性且证实了该方法计算简单,测设过程简便、快速、实用,适用于施工现场。

Curved road engineering generally require additional transition curve and circular curve as a link to the straight line road each other, its detailed surveying and designing commonly used polar coordinate method for free station positioning. On the basis of polar coordinate method for free station positioning to survey and design the curve, Consider- ing the special nature of the center of circular curve, Established a feasibility mathematical model for using deflection an- gle method for the Continuous setting out the curve with the transition curves and analysis of its principles and survey method . By verifying the practicality and feasibility of the method through an example, it is proved that the method is simple calculation, and its survey and design process is simple, fast, practical and applicable to the construction site.