| 大坝观测孔有效铅垂空间的确定 |
| 修订日期：1998-12-08 点此下载全文 |
| 引用本文：朱永宜.大坝观测孔有效铅垂空间的确定[J].钻探工程,1999,(5):16-18.. Determining Valid Vertical Space in Observation Hole of Dike dam[J]. Drilling Engineering, 1999,(5):16-18. |
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| 朱永宜 |
| Institute of Exploration Techniques，Langfang，Hebei，065000 |
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| 中文摘要:导出了根据测斜数据确定观测孔内有效铅垂空间的几何作图方法，介绍了在作图法基础上产生的计算机编程思路，以及控制观测孔施工质量的数学依据。 |
| 中文关键词:大坝,观测孔,孔斜,有效圆,约束圆 |
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| Determining Valid Vertical Space in Observation Hole of Dike dam |
| Zhu Yongyi |
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| Abstract:Geometric construction method determining valid vertical space in observation hole based on surveying data is derived. The computer programming method based geometric construction and the mathematical foundation controlling drilling construction quality of observation hole are introduced. |
| keywords:dike dam, observation hole, hole deviation, valid circle, restrained circle |
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