Analysis and research on stability of roadway surrounding rock in Ningdong mining area
In order to accurately classify the stability of roadway surrounding rock under complex geological conditions in Ningdong min-ing area,the actual situation of multiple mining roadways in the region was combined and the strength of the roof surrounding rock,the integrity of the roof surrounding rock,the strength of the two sides of the surrounding rock,the thickness of the direct roof,the cross-sec-tional size of the roadway,the impact of mining,groundwater,and the depth of the roadways were selected as the main stability influen-cing factors.The multi factor single indicator method was used to evaluate and score each influencing factor,and the Analytic Hierarchy Process was used to determine the weight of each evaluation factor.Finally,the weighted average method was used to analyze the stabili-ty results of the surrounding rock of the roadway.The results indicate that using the multi factor weighted average method to analyze the stability of surrounding rock in roadways is more in line with the actual situation of Ningdong mining area,and it is easier to form a guiding role in achieving differential support of roadways.
Ningdong mining areaAnalytic Hierarchy Processmulti factor weighted average methodstability analysis
万方数据
维普
