基于趋势面分析法的下峪口井田褶皱构造发育新认识

New Cognition on Development of Folded Structure in Xiayukou Mine Based on Trend Surface Analysis

褶皱构造是影响煤矿安全生产的重要因素之一。前人对下峪口井田褶皱构造的原有认识成果已不能满足当前矿井生产的需要。依据最新揭露的地质资料,运用趋势面分析方法重新对下峪口井田总体形态和褶皱发育特征进行定量分析,研究结果证明了前人对下峪口井田整体地层起伏形态及北山子向斜等大型褶曲判定的准确性,但对井田内部的小型褶曲的推断存在较大偏差。基于趋势面分析方法对井田褶曲构造的新认识,可为下峪口井田未来生产提供最新的地质依据。

The folded structure is an important factor influencing the safe production of a coal mine. The cognition results of the predecessors on the folded structures in Xiayukou Mine can not meet the needs of current mine production. For this purpose, quantitative analysis was carried out on the overall form of this mine and the development characteristics of the folded structures by using the trend surface analysis and according to the newly revealed geological data. The research results proved that the predecessors＇ judgment on the undulation form of the whole strata of Xiayukou Mine and the large folded structure on the Beishanzi syncline was accurate, but there were large errors in the judgment of small folded structures in the mine. The new cognition of the mine folded structures based on the trend surface analysis can provide new geological basis for the future production of Shangyukou Mine.