ISSN 2096-4498 CN 44-1745/U
隧道建设(中英文) ›› 2016, Vol. 36 ›› Issue (7): 868-871.DOI: 10.3973/j.issn.1672-741X.2016.07.016
• 施工技术 • 上一篇 下一篇
杨浩
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作者简介:
YANG Hao
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摘要:
使用收敛计的三角形面积法对隧道拱顶进行沉降监测是目前较为经济且能实现高精度变形监测的一种重要方法,为了充分发挥这种方法的优势,对该监测方法进行了全面地数学分析,通过对沉降中误差函数求极值,以发现其在隧道监测断面上布设最优三角形的方案,在监测设备一定的情况下,采用最优三角形布设方案,即把三角形的底边长布设成是腰长的1.362 5倍时,能得到最佳的监测精度,从而指导监测工作的具体实施。
关键词: 三角形面积法, 隧道拱顶, 沉降监测, 中误差, 最优监测精度
Abstract:
The triangle area method for tunnel crown settlement monitoring by using convergence gauge is an economical and highprecision deformation monitoring method. The mathematical analysis is made on the triangle area method; and an optimal triangle layout of monitoring points is decided by calculating peak value of medium error function of settlement. The results show that the underside length of the triangle, equaling 1.362 5 times waist length, is the best choice which can achieve optimal monitoring precision.
Key words: triangle area method, tunnel crown, settlement monitoring, medium error, optimal monitoring precision
中图分类号:
U 45
杨浩. 三角形面积法求隧道拱顶沉降的最优监测精度布设方案[J]. 隧道建设, 2016, 36(7): 868-871.
YANG Hao. Optimal Layout of Monitoring Points for Tunnel Crown Settlement by Using Triangle Area Method[J]. Tunnel Construction, 2016, 36(7): 868-871.
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