关键词: 通风网络, 敏感性, 稳定性, 角联结构

Abstract: To definite the high sensitive airway which affects the airflow stability of main airway and stable operation of main fan in mine ventilation system，the multiple regression analysis method is applied to recognize the high sensitive airway in mine ventilation network，while the optimum regression equation between the air quantity (Qj) of main airway and independent value of ventilation resistance (Ri) in each airway is established，and the results are verified by network calculation．The comparison shows that the multiple regression results are consistent well with the test results，which means the airway sensitivity is an embodiment of the structure property of ventilation network，and is independent of the airflow resistance．Meanwhile，the change of high sensitive airway is the key to affect the airflow stability in mine ventilation system．Moreover，using the multiple regression analysis can avoid the difficulties in derivation of airflow directional discriminant in the traditional diagonal structure analysis，and can give qualitative analysis and evaluation on the airflow stabilities of other airways in mine．

Key words: ventilation network, sensitivity, stability, diagonal structure