Actual-measurement comprehensive evaluation method for impact risk

Abstract

The invention discloses an actual-measurement comprehensive evaluation method for impact risk and belongs to the technical field of rock burst disaster prevention and control. During a stress-relieving and danger-demolition process, the impact risk evaluation for items is performed, namely, the actual measured impact risks of drilling detection, electromagnetic radiation monitoring, micro-seismic monitoring, stress monitoring, drilling hole stress-relieving and local dynamic effect are evaluated, and the item with the most serious risk level is taken as a comprehensive impact risk evaluation result. According to the invention, after the sub-item actual-measurement impact risk and the comprehensive impact risk are judged, the parameters of the monitoring and early warning and the stress-relieving and danger-demolition can be adjusted, so that a rock burst controlling measure is more practical and efficient, the rock burst controlling measure is targeted and the impact risk in the impact risk area is really reduced to the lowest; the effect evaluation can be performed on the pre-assessment for the impact risk implemented at an earlier stage; the pre-assessment method can be revised; the reliability of the pre-assessment is enhanced; a guiding function for making the rock burst controlling measure at the earlier stage is achieved.

Description

technical field [0001] The invention relates to a comprehensive evaluation method, in particular to a comprehensive evaluation method for actual measurement of impact risk, and belongs to the technical field of prevention and control of rock burst disasters. Background technique [0002] With the deepening of coal mines and the deterioration of geological and mining conditions, rock burst disasters are becoming more and more serious. The risk of rock burst is an important index to evaluate the risk degree of rock burst. At present, the commonly used method for evaluating the risk degree of rock burst is the pre-evaluation method of the risk of rock burst. Evaluation→Division of impact risk areas→Monitoring and early warning→Pressure relief and danger relief→Effect inspection, mainly based on the pre-mining geological conditions and mining technical conditions using the comprehensive index method for pre-evaluation. The impact risk pre-evaluation is the evaluation carried ou...

AI Technical Summary

Problems solved by technology

The impact risk pre-evaluation is the evaluation carried out before the monitoring and early warning, pressure relief and danger relief. Generally, it is not completely consistent with the impact risk after monitoring and early warning, pressure relief and danger relief, which leads to huge safety hazards in the working environment and staff

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