| 山区公路控制测量归算方法的探讨 |
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| 引用本文： | 刘永才.山区公路控制测量归算方法的探讨[J].地矿测绘,2001,17(3):31-33,42. |
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| 作者姓名： | 刘永才 |
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| 作者单位： | 云南省公路规划勘察设计院, |
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| 摘 要： | 传统公路测量中,一般将实测边长进行高差改平后即使用.此法边长投影变形很小,但由于没有统一的归算参考面,当施测线路过长、高程变化较大时,测量成果精度难于保证.大地测量的归算方法是一种统一、标准的计算方法,但当高程较大时,边长投影变形较大,故在山区控制测量中不宜选用.具有高程抵偿(或采用测区平均高程面)的分带高斯正形投影的控制测量归算方法,既统一了控制测量的归算基准,又有效地抵偿了边长投影变形,故是适宜山区公路控制测量选用的归算方法.
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| 关 键 词： | 山区 公路控制测量 归算 高程抵偿面 测区平均高程面 |
| 文章编号： | 1007-9394(2001)03-0031-03 |
| 修稿时间： | 2001年5月1日 |
Method Discussion about Naturalization Calculation Method of Highway Control Survey in a Mountain Area |
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| LIU Yong,cai.Method Discussion about Naturalization Calculation Method of Highway Control Survey in a Mountain Area[J].Surveying and Mapping of Geology and Mineral Resources,2001,17(3):31-33,42. |
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| Authors: | LIU Yong cai |
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| Abstract: | Precision of surveying achievement is difficult to ensure because of calculating coordinate directly with plane side-length of actual observation when route is over long and the change of height difference is rather big. Because of being a kind of unification and standard naturalization calculation method of geodetic surveying, when the change of height difference is great and when the projection deformation is bigger, too, the method is not suitable to be used. And so a kind of Gauss zone projection with height compensation plane of side-lengths is good method of naturalization calculation in a mountain area. |
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| Keywords: | Mountainous area Highway control survey Naturalization calculation Height compensation plane Height mean plane of survey area |
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