352 / 2022-03-22 11:41:42

Zoning evaluation of Rockburst risk based on Fuzzy Analytic Hierarchy Process in Gaojiapu coal mine, China

Rockburst,Zoning evaluation,Gaojiapu coal mine,Fuzzy analytic hierarchy process

Resource Development and Utilization > 3. New Theory and Technology of Deep Resource Exploitation

The zoning evaluation of rockburst risk is an important basis for mine construction and pressure relief design. Taking Gaojiapu coal mine in Binchang mining area of Shaanxi Province, China as the study area, this paper quantified the complex geological structure based on the Fractal theory and established the zoning evaluation model of mining area rockburst risk index based on three conditions: the distribution characteristics of in-situ stress field, the distribution of geological structure and the sedimentary environment of coal seam overburden, combined with Fuzzy Analytic Hierarchy Process(FAHP). A new method for zoning evaluation of rockburst risk in coal mine was being proposed, and the rockburst risk in the study area was being evaluated. The first mining area of Gaojiapu coal mine was selected as the verification area of the evaluation method to verify the accuracy and rationality of the zoning evaluation results of the new method. In addition, according to the risk evaluation results of rockburst, the corresponding targeted measures were being put forward. This method can provide a basic basis and guidance for coal mine safety production and anti-scour and pressure relief design.