地下厂房围岩位移确定性因素影响模型法研究

Study on Deterministic Factors Influence Model for Forecasting Surrounding Rock Displacement of Underground Powerhouse

认为开挖与断层是地下厂房围岩位移的最重要影响因素。在此基础上,提出利用"确定性因素影响模型法"对地下厂房围岩位移进行预测的思想,着重阐述了"断层影响模型"和"开挖进尺影响模型"的理论依据,模型建立的方法与推导过程,并推导出影响地下厂房围岩位移的"双因素模型"。最后在实际工程中验证了所推导的预测模型,结果表明,新的模型预测精度高,可以应用于实际工程。

It is considered that excavation and fault are the most important factors causing the displacement of surrounding rock of underground powerhouse. Based on this viewpoint, this paper puts forward a deterministic factors influence model for the dis- placement forecast of surrounding rock of underground power- house. The fault factor influence model and excavation footage factor influence model are respectively studied, including their modeling method and processes. Afterwards, a two factors influ- ence model for the surrounding rock displacement of underground powerhouse is gotten, It is proved in practical engineering that this new model is of high forecast precision, and can be used to practical engineering.