自由测站边角交会网在隧道内平面控制中的应用研究

刘成龙; 金国清; 杨雪峰; 王长进; 徐小左

doi:10.3969/j.issn.0258-2724.2014.01.001

自由测站边角交会网在隧道内平面控制中的应用研究

doi: 10.3969/j.issn.0258-2724.2014.01.001

基金项目:

中央高校基本科研业务费专项资金资助项目（SWJTU12ZT07）

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- 文章访问数: 1333
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出版历程
- 收稿日期: 2013-05-01
- 刊出日期: 2014-01-25

Using Free-Station Linear-Angular Intersection Network in Tunnel Horizontal Survey of High-Speed Railway

摘要

摘要: 针对目前高铁隧道洞内导线环网多余观测量少、受旁折光影响大、控制点使用困难和横向误差大等问题，提出用自由测站边角交会网作为隧道洞内平面控制测量的新方法.推导了自由测站边角交会网的边长相对中误差和横向贯通误差计算模型，并进行了仿真计算.计算结果表明，这两项指标能够满足高速铁路工程测量规范的精度要求；隧道贯通精度提高了20%，并提高了测量效率；从定性和定量两方面证明了自由测站边角交会网可以代替洞内导线环网.
- 隧道 /
- 洞内控制测量 /
- 导线环网 /
- 自由测站边角交会网 /
- 贯通精度
Abstract: To deal with the defects of loop traverse networks for the tunnel of high-speed railway, such as less redundant observations, great sensitivity to lateral refraction, difficult usage of control points and large lateral error, a new method using free-station linear-angular intersection network for the horizontal control survey inside tunnel was proposed. The calculation models for the two indexes,relative mean square error of distance and the lateral breakthrough error,were established for the free-station linear-angular intersection network. The simulation results show that the errors of two indexes can meet the accuracy requirements of the high-speed rail survey specifications. The tunnel breakthrough accuracy is increased by 20%, and also the efficiency of measurement is improved. Qualitative and qualitative analysis proved that the free-station linear-angular intersection network can substitute the loop traverse network.
- tunnel /
- tunnel control survey /
- traverse loops network /
- free-station linear-angular intersection network /
- breakthrough accuracy

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参考文献(13)

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文章访问数: 1333
HTML全文浏览量: 81
PDF下载量: 824
被引次数: 0

自由测站边角交会网在隧道内平面控制中的应用研究

doi: 10.3969/j.issn.0258-2724.2014.01.001

计量

出版历程

Using Free-Station Linear-Angular Intersection Network in Tunnel Horizontal Survey of High-Speed Railway

计量

出版历程

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