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针对隧道围岩稳定性判别模型基于静态的单因素位移量或位移速率的现状,提出根据监控量测设计、地质情况及隧道开挖实际形成多断面的监控量测划分单元,将公路隧道围岩稳定状况按照位移量及位移速率共同判定。位移量采用模糊概率的方式表示,而位移速率采用基于时序的动态测度模型,从而建立基于位移量及位移速率的划分单元动态综合评价模型;结合工程实例,验证了该模型的可行性,从而为根据位移量及速率综合判定公路隧道稳定性提供了新的参考。
Aiming at the present situation of static single-factor displacement or displacement rate, aiming at the status quo of static single-factor displacement or displacement rate, this paper puts forward a monitoring and measuring dividing unit that actually forms multi-sections according to monitoring measurement design, geological conditions and tunnel excavation. The steady state is judged according to the displacement and the displacement rate. The displacement is expressed by the fuzzy probability method, and the displacement rate adopts the dynamic measurement model based on the time sequence to establish the dynamic comprehensive evaluation model of the division unit based on the displacement and the displacement rate. The feasibility of the model is verified with the engineering examples According to the displacement and the rate of comprehensive judgment highway tunnel stability provides a new reference.