摘要
针对高铁桥梁距离地面较高,CPIII高程网的起闭水准基点需要联测上桥的实际问题,首先介绍《高速铁路工程测量规范》中传统的中间设站光电测距三角高程测量方法,并指出该方法在工程实践中存在不足之处,然后提出一种改进的端头设站光电测距三角高程上桥测量方法,最后通过理论与试验验证,证明该方法是可行的,并且能够显著提高外业作业效率,可以为改进中间设站光电测距三角高程测量方法以及完善《高速铁路工程测量规范》提供参考。
In consideration of the longer distance from ground to the bridge of high-speed railway,the standard of CPIII elevation network should be connected with leveling standard points.First,the traditional method in specifications is introduced for survey engineering of high speed railway,which named a method of trigonometric leveling setting spot in the middle.Then,the shortcomings of the method in engineering practice are pointed out and put forward an improved rigonometric leveling method to the bridge by setting spot at the ends.Finally,it is proved the new method is practicable of both theory and experiment,and it can enhance the work efficiency obviously.The new method can be beneficial to the modification of traditional method and specifications for survey engineering of high speed railway.
出处
《测绘工程》
CSCD
2016年第3期17-20,共4页
Engineering of Surveying and Mapping
基金
中央高校基本科研业务费专项资金资助项目(SWJTU12BR014/SWJTU12ZT07)
国家自然科学基金资助项目(51178404)
"2011计划"轨道交通安全协同创新中心经费资助项目
关键词
高速铁路
轨道控制网
三角高程
设站
精度
high-speed railway
track control network
trigonometric leveling
setting spot
accuracy
