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三角形面积法求隧道拱顶沉降的最优监测精度布设方案
收稿日期: 2015-12-18
修回日期: 2016-02-19
网络出版日期: 2016-07-27
Optimal Layout of Monitoring Points for Tunnel Crown Settlement by Using Triangle Area Method
Received date: 2015-12-18
Revised date: 2016-02-19
Online published: 2016-07-27
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 . DOI: 10.3973/j.issn.1672-741X.2016.07.016
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.
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