INTEGRATED TEST DEVICE AND METHOD FOR FILLING KARST CAVE DEPOSITION AND TUNNEL INTERMITTENT-TYPE WATER OUTBURST AND MUD OUTBURST CATASTROPHES

摘要

An integrated test device and method for filling karst cave deposition and tunnel intermittent-type water outburst and mud outburst catastrophes. The device comprises a stirring tank (2), a water channel (5), a water collection tank (16), and several deposition tanks (12). An outlet of the stirring tank (2) is connected to one end of a pipeline, and the other end of the pipeline extends to one end of the water channel (5); the several deposition tanks (12) are provided at intervals at the lower end of the water channel (5), the water collection tank (16) is provided at the other end of the water channel (5), and a detachable baffle (20) is provided, in the water channel (5), at the front end of each deposition tank (12). By means of the arrangement and coordination of the deposition tanks (12), the process of deposition and solidification of a filling medium and the process of water outburst and mud outburst can be simulated and observed; different working conditions can be simulated by changing a flow speed, a sample concentration, a grain gradation, a deposition height, and a transport distance, and the process of intermittent-type water outburst and mud outburst can be well studied.