关于苏通大桥墩身施工测量的精度分析 |
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作者单位: | 河海大学土木工程学院 南京210098 |
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摘 要: | 在大型桥梁施工中,墩身的施工测量精度要求较高,本文就墩身施工测量中的极坐标法放样墩身模板的精度及测距三角高程法进行墩顶高程控制的精度、墩身轴线的定位精度以及对桥轴线加密控制网点的必要精度进行了精度分析与探讨.
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关 键 词: | 极坐标放样 加密控制网 测距三角高程 坐标转换 精度分析 |
Accuracy analysis about pier shaft construction survey of sutong bridge |
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Authors: | ZHOU Xi-zhen CAO Cao |
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Abstract: | In the construction of big type bridge.require higher precision of pier shaft construction survey.the paper about precision of polar coordinates method setting-out pier shaft mould board and precision of the EDM trigonometric leveling method carry through pier tip height control and positioning precision of pier axis as well as needed precision of pass control point of bridge axis carry through accuracy analysis and discuss. |
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Keywords: | polar coordinates method setting-out pass control net the EDM trigonometric leveling coordinate transformation accuracy analysis |
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