UNMANNED IN-SITU STRESS MONITORING STATIONS ALONG THE QINGHAI-TIBET RAILWAY

The paper introduces a new type of unmanned automatic in-situ stress monitoring station installed along the Qinghai-Tibet Railway.By using the wireless GPRS communication technology,the station is linked through Internet to the central server located in the LAN for in situ stress monitoring in the Institute of Geomechanics,Beijing to achieve data exchange and telecontrol by the monitoring stations.This network overcomes the shortcoming of conventional in-situ measurements needing artificial in-situ information collection and uses the data terminal to realize the automation of stress monitoring.The monitoring stations can monitor deep-hole stresses in the Kunlun Mountains,Amdo and Yangbajain along the Qinghai-Tibet Railway and displacements of the Central Kunlun fault at Xidatan,Kunlun Mountains.Through continuous monitoring of the geophysical,geological disaster and geo-environmental data and geodynamic process along the Qinghai-Tibet Railway,the stations can offer basic data for the study of geological disasters occurring along the railway and tectonic deformation dynamic process of the Qinghai-Tibet Plateau,earthquake forecast and plateau environment.Additionally,they can enhance the early-warning ability for geological disasters and earthquakes on the Qinghai-Tibet Plateau.