Experiment study of utilizing waste rock from tunnels to compound the tigh performance;

The waste solid,for example,waste rock,slag and fly ash,takes over huge amount of land and causes environmental pollution.

The waste rock in Dabagou Tunnel will pollute the environment.

This paper analyzes the influences of gangue discharge of coal mine on the environment, sums up currently adopted treatment technologies, compares some domestic engineering examples, and in the light of the existing problems, probes into some possible solving ways.

The application of moving sieve jigging in waste stone exhaust system;