论文部分内容阅读
针对隧道施工过程中预测围岩变形可为支护参数的确定和制定施工决策提供依据的问题,根据围岩变形—时间关系的曲线特征建立了围岩变形预测的Usher模型,并通过求解模型参数、拟合围岩变形—时间曲线推算未来围岩变形发展趋势。现场隧道围岩变形实测结果亦验证了Usher模型的可行性。
Aiming at the problem that the prediction of surrounding rock deformation in tunnel construction can provide the basis for the support parameters and the construction decision, the Usher model of the surrounding rock deformation prediction is established according to the curve characteristics of deformation and time of the surrounding rock. The model parameters , Fitting the deformation-time curve of surrounding rock to calculate the future development trend of surrounding rock deformation. The field tunnel surrounding rock deformation test results also verify the Usher model feasibility.