Slope Monitoring by TDR – A Low Cost System

Abstract

Slope stability is one of the leading problems faced by opencast mines. The conventional geotechnical sensors are generally monitored by technicians in the field and the available wireless monitoring systems like SSR, LiDAR are more expensive. The purpose of this paper is to introduce the effective real-time slope monitoring systems and the application TDR along wireless sensor networks. The wireless Data Transmission System using advanced antennas at respective slope instruments in underground or opencast mines can be used collect data without any physical connections. Wireless sensor networks (WSNs) are well suited to monitor the movement and it consist of sensor nodes which measure physical quantities and transmit the preprocessed measurement results to a base station wirelessly. Developments in information and communications technology (ICT) support the collection, connection and analysis of data through sensing and monitoring of slopes in mines. As a part of Ministry of Mines sponsored project, the above system is proposed to be implemented for the first time in India in Dongri Buzurg mine of MOIL-Limited.