| 李俊林,夏子轩.超长巷道贯通等边直伸导线极限长度测量方法研究[J].矿产勘查,2025,16(S2):201-210 |
| 超长巷道贯通等边直伸导线极限长度测量方法研究 |
| Research on measurement and analysis methods for the maximum length of equilateral straight-line conductors in ultra-long tunnel breakthroughs |
| 投稿时间：2025-11-27 |
| DOI：10.20008/j.kckc.2025s2027 |
| 中文关键词: 陀螺方位角观测值 直线形贯通导线 极限测量长度计算 定量分析 |
| 英文关键词: azimuth observation traverse survey with linear form limit length calculation quantitative analysis |
| 基金项目: |
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| 摘要点击次数: 28 |
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| 中文摘要: |
| 为提高矿山超长巷道贯通测量的精度与可靠性，本研究对等边直伸导线极限长度计算方法与方位角加测策略进行分析。首先基于横向极限贯通误差与导线方向观测中误差的理论关系，推导了导线长度的理论计算公式。然后，结合严密平差与观测值仿真方法，构建了贯通导线极限长度的仿真模型，并与理论计算结果进行对比。最后，基于贯通导线严密平差，提出了最优加测陀螺方位角的全组合筛选方案。研究结果验证了理论公式与仿真模型的正确性。此外，加测陀螺方位角对提高贯通对接精度具有显著效果，但存在一个明显的“效益峰值”，继续增加陀螺边的数量，其对精度的改善效果将呈现明显的递减趋势。本研究对保障超长巷道精准贯通具有重要应用价值。 |
| 英文摘要: |
| In order to enhance the accuracy and reliability of breakthrough surveying in ultra-long mine tun. nels，this study analyzes the calculation method for the maximum length of equilateral straight-line traverse and the azimuth measurement strategy. First，based on the theoretical relationship between lateral breakthrough error andmean error in traverse direction observations，a theoretical formula for traverse length calculation was derived. Subsequently，integrating rigorous adjustment and simulated observation data，a simulation model for breakthrough traverse length limits was constructed and compared with theoretical results. Finally，based on rigorous adjustment of breakthrough traverses，a full-combination screening scheme for optimal additional gyro azimuth measurements was proposed. The results validate the accuracy of both the theoretical formula and the simulation model. Furthermore，adding gyro azimuth measurements significantly improves alignment accuracy，but a distinct“peak benefit”is observed. Beyond this point，increasing the number of gyro sides yields diminishing returns in accuracyimprovement. This research holds significant practical value for ensuring precise alignment in ultra-long tunnels. |
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