对高速铁路施工三维精准测控问题的几点思考

Some Ideas About the Three-dimensional Precise Measurement and Control for High-speed Railway Construction

高速铁路对铁路建设质量的要求非常高,传统的普速铁路建设模式已无法满足高速铁路建设要求。无碴轨道的施工质量对高速铁路建设具有举足轻重的作用,它的线形平顺性控制是高速铁路建设的关键,是通过对轨道精调后实现的。轨道精调必须依靠可靠的、高精度的测绘技术,因此,如何使现代测绘技术满足高速铁路建设要求就成了测绘科技人员必须认真对待的问题。鉴于上述原因,以高速铁路工程实践经验为基础,对现行高速铁路测量技术进行了认真的总结与分析,指出了高速铁路测量应注意的问题,针对高速铁路测量的超高精度要求提出了相应的技术措施和建议。

The construction of high-speed railway has high quality requirements. Traditional railway construction model can no longer meet high-speed railway construction requirements. The construction quality of ballastless tracks has key role for construction of high-speed railway. Controlling the rail line art of ballastless tracks is the key to the construction of high-speed railway. The smooth linear control of ballastless tracks is realized through orbit precision adjustment. Orbit precision adjustment must rely on reliable high precision surveying and mapping technology. Therefore, how to make modern surveying and mapping technolog; meet requirements of high-speed railway construction must become the problems should be taken seriously. For this reason, based on experience of high-speed railway construction, the current surveying and mapping technology for high-speed railway construction has been serious summarized and analysed. The problems of high-speed railway measurement should be paid attention to has been pointed out. According to the high accuracy requirement of high-speed railway surveying, the related technical measures and proposal was puts forward.