| 地铁围护结构桩顶水平位移监测的精度分析 |
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| 引用本文： | 齐振江.地铁围护结构桩顶水平位移监测的精度分析[J].土工基础,2010,24(3):46-48. |
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| 作者姓名： | 齐振江 |
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| 作者单位： | 机械工业勘察设计院,西安,710043 |
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| 摘 要： | 主要描述了西安地铁二号线车站基坑围护结构桩顶水平位移监测的技术方案,结合基准线法和测小角法测定水平位移,并对实际角度观测进行了误差分析,探讨了地铁围护结构桩顶水平位移监测的观测点坐标对中误差,推导出了采用不同精度的测角仪器观测水平角所需的测回数。
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| 关 键 词： | 围护结构桩顶 水平位移 精度分析 |
Accuracy Analysis of Horizontal Displacement Monitoring of Pile Cap in Subway Surrounding Protection Structure |
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| QI zhen jiang.Accuracy Analysis of Horizontal Displacement Monitoring of Pile Cap in Subway Surrounding Protection Structure[J].Soie Engineering and Foundation,2010,24(3):46-48. |
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| Authors: | QI zhen jiang |
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| Affiliation: | QI zhen jiang(Institute of Geotechnical Investigations ＆ Design,MMI,Xi＇an 710000,China) |
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| Abstract: | The technical solutions of horizontal displacement monitoring of pile cap in subway surrounding protection structure in Xi＇an is introduced.Combined with the horizontal displacement monitored by small angel measuring method with baseline method and the error analysis of angle observation,the coordinate＇s RMS error of observed points of horizontal displacement monitoring of pile cap is discussed. Then,the measurement times by kinds of different precision angle measuring instruments is deduced. |
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| Keywords: | pile cap of surrounding protection structure horizontal displacement accuracy analysis |
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