非等距时序灰色预测模型及其在岩石锚碇承载力分析中的应用

在许多桥梁工程中,锚碇岩石边坡的承载力和稳定性对整个桥梁工程的稳定和正常运营起着至关重要的作用.利用推广的非等间距灰色预测理论模拟了虎门大桥锚碇隧洞拉拔力试验中拉拔力与相应山体位移间的关系,并用所得到的非等距灰色预测模型预测了山体位移,结果表明,非等间距灰色预测模型的预测精度令人满意.研究结果对桥梁工程安全施工和岩石工程预测预报有重要理论意义和工程价值.

GM(1,N)-Model of Non-isometric Time Sequence and Its Application in Capacity Analysis of Rock Anchor Slope

In many bridge projects,the bearing capacity and stability of anchor rock slopes is very important for the stability and normal operation of the entire bridge project.In this paper,the generalized non-isometric gray prediction model is applied to simulate the relation between the pulling force and the corresponding rock slope displacement for the Anchor Tunnel Pulling Force Test of Humen bridge,and the established generalized non-isometric gray prediction model is applied to predict the rock slope displacement,the prediction accuracy is very satisfactory.The results of current paper are of great theoretical significance and engineering value for safety construction of bridge projects and rock engineering prediction.