At the same time, based on the measured data of vault crown settlement, a grey-synergetic prediction model is established by use of the grey theory and the synergetic theory.
并结合灰色理论和协同学理论，基于实测拱顶下沉数据，建立塌方时间预报的灰色-协同理论模型。
Therefore, the vault crown subsiding process and its total settlement are important factors for tunnel supporting design and environment controlling.
而隧道拱顶的下沉过程及其最终下沉量则是隧道支护设计及地层环境控制的重要基础。
The reliability of regression analysis is validated through numerical simulation; and the larger pre-settlement of vault crown is achieved ahead of heading face.
通过数值模拟验证了该分析结果的可靠性，并且开挖面前方的超前拱顶下沉量较大。
The reliability of regression analysis is validated through numerical simulation; and the larger pre-settlement of vault crown is achieved ahead of heading face.
通过数值模拟验证了该分析结果的可靠性，并且开挖面前方的超前拱顶下沉量较大。
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