根据灰色理论编写了围岩收敛位移的预测程序GM -TUNNEL，预测收敛位移测试点的最终收敛位移。
Based on gray system, programming the software, which can be used to forecast the final clearance displacement of tunnel according to some data of monitoring, named GM-TUNNEL.
当顶板发生破坏时，其位移发生突变，计算不收敛。
When the roof damaged, the displacement mutation occurred and the calculations did not converge.
现场对隧道周边位移收敛值、拱顶下沉值和地表下沉值进行监测。
Furthermore, peripheral displacement convergence and settlement of vault and ground surface are monitored on-site.
利用本文方法所获得的解，无论是位移还是内力可同时有二阶收敛精度。
The displacements and stress resultants obtained by the present method can converge to exact solution and have the second order convergence speed.
复杂多变的围岩条件使基于收敛曲线的累积位移和增量位移参数反演方法的应用变得非常谨慎。
So it should be discussed before application of the mechanical parameters back analysis methods based on convergence curves.
因此，将监测点位移是否突变、计算是否收敛作为顶板破坏的判据。
Therefore, how the displacement mutation and calculation convergence happened can be as a criterion to judge the roof damage.
目前位移均趋于收敛，满足安全控制标准。
The displacement tends to converge; and it meets the designed safety standards.
目前位移均趋于收敛，满足安全控制标准。
The displacement tends to converge; and it meets the designed safety standards.
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