| 地下圆曲线标定过程中合理弦长与边垂距的确定 |
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| 引用本文： | 田林亚.地下圆曲线标定过程中合理弦长与边垂距的确定[J].测绘工程,1997,6(1):61-63. |
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| 作者姓名： | 田林亚 |
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| 作者单位： | 河海大学 |
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| 摘 要： | 根据地下圆曲线所片位置的特殊性，提出了确定合理弦长进进行地下圆曲线标定的方法，导出了计算弦线上任一点的内、外边垂的距的公式，有利于保证测角测边精度施工的进度和质量。
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| 关 键 词： | 地下圆曲线 合理弦长 边垂距 标定 工程测量 |
On Establisment of Proper Subtense Length and Side Offset in the Process of setting out, Underground Circular Curve |
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| Tian Linya.On Establisment of Proper Subtense Length and Side Offset in the Process of setting out, Underground Circular Curve[J].Engineering of Surveying and Mapping,1997,6(1):61-63. |
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| Authors: | Tian Linya |
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| Abstract: | Based on the special location of underground circular curve, ways to fix proper subtense length touching underground circular curve are brought forward here, from which the formula of calculating side offset inside and outside a pemissive point of a subtense is obtained, which can guarantee the accuracy of angular and side surveying as well as the speed and quality of construction. |
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| Keywords: | Underground circular curve Proper subtense length Side offset Set out |
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