| 略论位(重力)基数测量在水利建设中的应用 |
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| 引用本文： | 张赤军,许厚泽.略论位(重力)基数测量在水利建设中的应用[J].物探与化探,2002,26(1):68-70,74. |
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| 作者姓名： | 张赤军 许厚泽 |
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| 作者单位： | 中国科学院,测量与地球物理研究所,湖北,武汉,430077 |
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| 基金项目： | 国家自然科学基金资助项目 ( 4 98740 0 5 )，中国科学院创新项目 (KZCX2 10 6 ) |
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| 摘 要： | 为改变西部干旱缺水,在西部大开发中,大规模、长尺度地兴修水利,如南水北调,将有必要进行。基于同一个水准面上高程相同的原则,本文强调在上述工程的设计施工时应该使用与位基数意义相同的力高高程。据计算,在纬度差为12°,高差相差的近2500m的同一条测线上,现行的高程与力高高程相差7m之多,这样大的偏差是不能忽略的。文中对高程测量中重力点的布设及重力内插的精度等也提出了新的看法。
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| 关 键 词： | 位基数 力高 水利建设 重力测量 |
| 文章编号： | 1000-8918(2002)01-0068-03 |
| 收稿时间： | 2000-11-14 |
A TENTATIVE DISCUSSION ON THE APPLICATION OF GRAVITY POTENTIAL BASE SURVEY TO THE CONSTRUCTION OF WATER CONSERVANCY PROJECTS |
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| ZHANG Chi jun,XU Hou ze.A TENTATIVE DISCUSSION ON THE APPLICATION OF GRAVITY POTENTIAL BASE SURVEY TO THE CONSTRUCTION OF WATER CONSERVANCY PROJECTS[J].Geophysical and Geochemical Exploration,2002,26(1):68-70,74. |
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| Authors: | ZHANG Chi jun XU Hou ze |
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| Institution: | Institute of Surveying and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China |
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| Abstract: | In the light of the principle that elevations should be identical at the same water level, it is held that the potential base equivalent elevation which has the same meaning as the potential base ought to be used in the designing and construction of water conservancy projects. Calculation shows that the difference between the currently used elevation and the potential base equivalent elevation is as large as 7 m along the same measuring line with latitude difference 12° and altitude difference nearly 2500 m. Such a large deviation should not be neglected. This paper also puts forward some opinions on the arrangement of gravity points in elevation measurement and the precision of gravity interpolation. |
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| Keywords: | potential base potential base equivalent elevation construction of water conservancy projects gravity survey |
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