为评价煤层底板突水影响因素的影响程度,引入主成分分析法。以兖州矿区为例,在系统收集和详细分析矿区水文地质资料的基础上,确定底板突水影响因素,应用主成分分析法,对底板突水影响因素做出定量评价,并确定其影响程度。评价结果为兖州矿区下组煤开采底板突水危险性评价提供了有力证据,并对矿区底板突水防治措施的制定具有指导意义。
In order to evaluate influence degree of floor water-burst factors,principal-component analysis was introduced.Taking Yanzhou mining area as an example,based on the detailed analysis of hydrogeology information,influence factors of floor water-burst were obtained and the influence degree of the factors were evaluated by using principal-component analysis.Results provided basis and reference for floor water-burst danger evaluation in mining lower-group coal-seam of Yanzhou mining area,which could also instruct floor water-burst prevention.