基于冲击风险量化评估模型的采掘方案优化案例研究

Case study of extraction plan optimization based on quantitative rock burst risk assessment model

冲击风险量化评估模型,是一种基于理论与数据驱动融合的冲击矿压风险评估方法,在冲击危险矿压领域具有广阔的前景,但是目前该技术评估冲击危险的应用研究还比较少。将冲击风险量化评估模型与实时监测数据相结合,对菏泽赵楼煤矿7302工作面回采过程中的危险进行实时风险量化评估,并对强冲击风险评估(风险评估值大于0.75)区域进行了分析验证,发现强冲击危险区域与电磁辐射值成正比关系,且具有较好的一致性,进而验证了冲击风险量化评估模型的可行性。在此基础上,使用当前数据对后续开采过程进行了冲击风险预测,通过对比分析危险区域的变化及演变趋势,确定了冲击风险相对较小的缩面方案。

The quantitative rock burst risk assessment model,a theory-based and data-driven fusion of rock burst risk assessment method,has broad prospects in the field of hazardous rock burst.In this paper,the quantitative rock burst risk assessment model was combined with real-time monitoring data to perform a real-time quantitative risk assessment of the hazards during the retrieval process of the 7302 working face in the Zhaolou Coal Mine,and the area of strong rock burst risk assessment(risk assessment value>0.75)was analyzed and verified.It was found that the strong rock burst risk area was proportional to the electromagnetic radiation value and had good consistency,which verified the feasibility of the quantitative rock burst risk assessment model.On this basis,the rock burst risk prediction for the subsequent mining process was carried out using the current data.By comparing and analyzing the changes and evolution of the risk zone,a reduction plan with lower rockburstriskwas identified.