深路堑开挖边坡稳定性自动化监测方法

Automatic Monitoring Method for Slope Stability of Deep Cut Excavation

采用目前方法监测深路堑开挖边坡稳定性时,没有对深路堑开挖过程进行模拟分析,无法准确的监测边坡稳定性和边坡累计位移,监测误差较大。提出深路堑开挖边坡稳定性自动化监测方法。首先通过有限元方法对深路堑开挖工程进行模拟和分析,获取深路堑开挖边坡稳定性的监测数据,利用PSO-IUF模型对监测数据进行处理,降低数据误差,选取边坡损伤、边坡坡度、边坡累计位移等深路堑开挖边坡稳定性指标,结合熵权法和AHP法计算稳定性指标的权重,并通过云模型实现深路堑开挖边坡稳定性的自动化监测。实验结果表明,所提方法可准确的监测边坡损伤和边坡累计位移,监测误差小。

When the current method is used to monitor the slope stability of deep cutting excavation,there is no simulation analysis of the deep cutting excavation process,which can not accurately monitor the slope stability and slope cumulative displacement,and the monitoring error is large.An automatic monitoring method for slope stability of deep cutting excavation is proposed.Firstly,the deep cutting excavation project is simulated and analyzed by finite element method to obtain the monitoring data of slope stabili-ty of deep cutting excavation.The monitoring data are processed by pso-iuf model to reduce data error and select slope damage,slope gradient.The stability index of deep cutting excavation slope such as slope cumulative displacement is calculated by entro-py weight method and AHP method,and the automatic monitoring of deep cutting excavation slope stability is realized by cloud model.The experimental results show that the proposed method can accurately monitor the slope damage and slope cumulative displacement,and the monitoring error is small.