| 地铁盾构隧道洞门钢环圆心坐标的精确测定 |
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| 引用本文： | 贾志强.地铁盾构隧道洞门钢环圆心坐标的精确测定[J].测绘信息与工程,2011,36(2):31-33. |
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| 作者姓名： | 贾志强 |
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| 作者单位： | 天津市勘察院; |
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| 摘 要： | 给出了测定与计算钢环圆心坐标和半径的方法,按照最小二乘原理进行求解,并根据实际数据进行了验证和分析,实现了地铁盾构隧道洞门钢环圆心坐标的精确测定。
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| 关 键 词： | 三维坐标 球面方程平差模型 平面方程平差模型 |
Accurate Surveying of Center Coordinate of Circle of Subway Shield Tunnel Gateway Steel Ring |
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| JIA Zhiqiang.Accurate Surveying of Center Coordinate of Circle of Subway Shield Tunnel Gateway Steel Ring[J].Journal of Geomatics,2011,36(2):31-33. |
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| Authors: | JIA Zhiqiang |
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| Institution: | JIA Zhiqiang(Tianjin Institute of Geotechnical Investigation and Surveying,428 South Hongqi Road,Tianjin 300191,China) |
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| Abstract: | The method of the subway shield gateway steel ring considered to a circle of the solid space is applied.The process of measuring and calculating the center coordinate and the radius of the steel ring circle is analyzed.The center coordinate of the steel ring circle can be measured accurately. |
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| Keywords: | three dimension coordinates sphere equation adjustment model plan equation adjustment model |
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