| 带参数GPS水准拟合实现跨河高程传递 |
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| 引用本文： | 邓兴升,贾莎莎,王文慧.带参数GPS水准拟合实现跨河高程传递[J].测绘工程,2011,20(4):1-4,8. |
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| 作者姓名： | 邓兴升 贾莎莎 王文慧 |
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| 作者单位： | 长沙理工大学交通运输工程学院测绘工程系,湖南长沙,410004 |
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| 基金项目： | 国家自然科学基金资助项目(40674008); 湖南省自然科学基金资助项目(10JJ3090) |
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| 摘 要： | 为了解决在特大桥隧工程建设中远距离高程基准传递的难题,介绍带高程基准参数的GPS水准拟合方法,给出拟合函数、计算公式及精度估算公式.通过3个大跨度桥梁高程控制的计算实例验证方法的可靠性,证明方法能同时获得局部似大地水准面模型和高程基准参数,解算高程基准参数的精度优于公路桥位勘测设计规程中桥梁高程控制测量的限差要求.
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| 关 键 词： | 特大桥隧工程 跨河高程传递 带参数GPS水准拟合 高程基准 |
GPS leveling fitting with additional parameter for height transferring across river |
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| DENG Xing-sheng,JIA Sha-sha,WANG Wen-hui.GPS leveling fitting with additional parameter for height transferring across river[J].Engineering of Surveying and Mapping,2011,20(4):1-4,8. |
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| Authors: | DENG Xing-sheng JIA Sha-sha WANG Wen-hui |
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| Institution: | DENG Xing-sheng,JIA Sha-sha,WANG Wen-hui(Department of Surveying Engineering,School of Traffic and Transportation Engineering,Changsha University of Science & Technology,Changsha 410004,China) |
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| Abstract: | A key problem in long span bridge and tunnel engineering is to transfer height datum across the obstacle with long distance.In order to solve the problem,GPS leveling fitting method with additional parameter is presented.Fitting functions and equations are given in this paper.Feasibility of the proposed method is validated by practical data of numerical engineering.The method can obtain the height datum parameter and local quasigeoid model at the same time.It is verified that parameters of the fitting model... |
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| Keywords: | long span bridge and tunnel engineering height transference across river GPS leveling fitting method with additional parameter height datum |
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