| 短视距精密三角高程测量在沉降监测中的应用 |
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| 引用本文： | 周国树,张德强,郭清. 短视距精密三角高程测量在沉降监测中的应用[J]. 扬州大学学报(自然科学版), 2005, 8(2): 56-59 |
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| 作者姓名： | 周国树 张德强 郭清 |
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| 作者单位： | 1. 扬州大学,水利科学与工程学院,江苏,扬州,225009;河海大学,土木工程学院,南京,210098
2. 扬州大学,水利科学与工程学院,江苏,扬州,225009 |
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| 摘 要： | 提出了一种不测量仪器高和棱镜高的短视距精密三角高程监测沉降的测量方法，经理论分析和试验验证，其精度完全可以达到二等水准．将此方法运用于扬州市人防工程的沉降监测，共观测了11期，各期观测的环闭合差均优于二等水准的限差，平差后的最大高程中误差均小于1mm，且各监测点的升降与抽水井的降水或回灌完全吻合．
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| 关 键 词： | 短视距 三角高程 精密水准 精度分析 |
| 文章编号： | 1007-824X(2005)02-0056-04 |
| 修稿时间： | 2004-06-21 |
Short distance precision trigonometry leveling and application to subsidence monitoring |
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| ZHOU Guo-shu,ZHANG De-qiang,GUO Qing. Short distance precision trigonometry leveling and application to subsidence monitoring[J]. Journal of Yangzhou University(Natural Science Edition), 2005, 8(2): 56-59 |
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| Authors: | ZHOU Guo-shu ZHANG De-qiang GUO Qing |
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| Affiliation: | ZHOU Guo-shu~ |
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| Abstract: | Trigonometry leveling without measurement of the height of the instrument and prism is explored. Theoretical analysis and experimental tests show that the precision of trigonometry leveling is achieved that of second leveling. Application of trigonometry leveling to subsidence monitoring of engineering, the consequence obtained is satisfactory. Up till now, 11 measurements have been completed, error of close of each measurement is better than admissible error of second leveling, and the maximum altitude mean error of each measurement is less than 1 mm. Descent or ascent of monitoring points are consistent with that of water pumped out or back into the wells. |
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| Keywords: | short distance trigonometry leveling precision leveling precision analysis |
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