Real-Time Remote Monitoring of Perturbed Force on Pre-Stressed Cable in Rock Slopes

An important consideration in slope studies is the installation of instrumentation for monitoring movements and stresses as well as groundwater conditions. In this paper, a monitoring technique for the evaluation of slope stability was developed to real-time remote monitor the perturbed forces on the cable through sliding body and sliding bed. The link between slope sliding force and remote monitoring perturbed forces was described by a simple relation based on the limit equilibrium principle of instantaneous rigid body, responded for slope sliding mechanism with the synthesized mechanical effects due to rain, groundwater change, and self weight of rock masses. Two typical applications show that the real-time remote intelligent monitoring of perturbed stresses in cables can be used to forecast and evaluate the stability of various reinforced slopes such as those formed on open-pits and expressway. This technique can be useful underground lifeline facilities such as pipelines, telecommunication and power cables.