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轨道的高平顺性是客运专线无砟轨道最突出的特点之一。因此,需要建立高精度的铺轨基桩控制网。基桩控制网通常是按五等导线测量的方法进行布设,本文提出在导线基础上采用边角后方交会法来加密,通过运用原始数据误差理论和仿真实验的方法对无砟轨道控制基桩网的新旧两种测量技术进行对比,结果显示:采用边角后方交会法加密的控制网将得到更高的相对点位精度,具有更好的平顺性指标。这一结论对我国客运专线无砟轨道施工控制网的建设或许有参考价值。
The high ride comfort of the track is one of the most prominent features of ballastless orbit on passenger dedicated lines. Therefore, it is necessary to establish a high-precision paving pile foundation control network. The foundation piles control network is usually laid according to the five-conductor measurement method. In this paper, we propose to use the rear-end intersection method based on the wires to encrypt. Based on the original data error theory and simulation experiment, The results show that the control network encrypted by the corner back-cross method will get a higher accuracy of relative point position and has better ride comfort index. This conclusion may have a reference value for the construction of ballastless track construction control network in our country.