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本文介绍在隧道开挖过程中观测拱顶的沉降量,运用指数、对数、双曲线模型进行相关计算,并进行修正,预测隧道拱顶的沉降量,用以指导开挖方案的执行及调整加固,以维护围岩稳定。预测的结果用以支持开挖方案的执行及调整加固,以及支护的设定。
This paper introduces the observation of the settlement of the vault during the tunnel excavation, and carries out the correlative calculation by means of index, logarithm and hyperbola model, and then corrects and estimates the settlement of the tunnel vault to guide the execution and adjustment of the excavation plan Reinforced to maintain the stability of the surrounding rock. The results of the prediction are used to support the implementation of excavation plans and the adjustment and reinforcement as well as the setting of support.