测斜仪在机场高填方边坡变形监测中的应用

Application of Inclinometer in Deformation Monitoring of Airport High Fill Slope

在西南山区机场建设工程中,由于山地起伏的地势,势必会遇到高填方边坡,而在高填方边坡的变形监测中,边坡的深部位移监测是监测填筑体内部变形情况的重要手段。测斜仪是监测高填方边坡深部位移的快捷、精确的仪器设备。文章介绍了山区机场高填方边坡的主要破坏方式、产生深部位移的主要机理及滑动式测斜仪的工作原理。通过六盘水月照机场高填方边坡对测斜仪的应用表明,测斜仪可以表征高填方边坡不同深度处的变形位移情况,并且通过布设深部位移监测剖面可以反映高填方边坡潜在的滑面及滑面的贯通性,对判断机场高填方边坡的稳定性有重要意义。

Airport project in southwest mountainous areas is bound to encounter high fill slope because of the undulating terrain of the mountains.In the deformation monitoring of high fill slope,deep displacement monitoring of slope is an important means to monitor the internal deformation of filling body.Inclinometer is a fast and accurate instrument for monitoring deep displacement of high fill slope.In this paper,the main failure modes,the main mechanism of deep displacement and the working principle of sliding inclinometer of high fill slope in mountain airport are introduced.The application of inclinometer in high fill slope of Liupanshui Yuezhao Airport shows that:the inclinometer can be used to characterize the deformation and displacement of high fill slope at different depths,and the potential slip surface and the penetration of the slip surface of high fill slope can be reflected by laying deep displacement monitoring profiles,which is very important to judge the stability of high fill slope in airport.