Precision early warning method for dangerous rock hazards in the tunnel import and export

Abstract

The present invention discloses an accurate early warning method for tunnel entrance and exit hazardous rock disasters, and relates to the technical field of geologic disaster prevention and control. The present invention includes the following steps: step 1: To select the critical rock bodies that require real-time disaster warning against the danger of dangerous rock safety on the import and export side of a specific tunnel; step 2: To install a drilling stress acquisition sensor; step 3: To install a critical rock disaster warning signal transmitter at the outer end of the critical rock stress sensor; step 4: To launch Instrument controller input parameters such as critical rock geometry and critical rock fracture toughness; step 5: Activate the critical rock disaster warning signal transmitter. The method of precision warning for dangerous rock disaster in the import and export of tunnels of this invention, can accurately and realtime collect the dangerous rock stress on the import and export side slope of the tunnel, determine the real-time stability of dangerous rock, and thereupon carry out real-time warning for dangerous rock disaster. To ensure the safety of the operation of roads and railways in the import and export of tunnels.

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