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构造作用是控制井田范围内煤层厚度变化的主要地质因素．超化井田二１煤层厚度变化规律研究表明，中生代以来三期挤压应力场作用导致煤层厚度展布的分带性和方向性；重力作用下的长期流变促使煤层展布具有南厚北薄的总体趋势；小型不协调褶皱和断裂构造，是造成煤厚局部变化的根本原因．
The tectonism is the main geologic factor controlling the coal seam thickness change in the minefield. The study on the variation law of coal seam thickness in No.2 mine of Chaohua Minefield shows that the third-stage compressive stress field in the Mesozoic resulted in the zonality and directionality of coal seam thickness distribution. The long-term rheological action under gravity forces the coal seam to spread with the southern thickness of the north The overall trend; small uncoordinated fold and fault structure, is the root cause of local changes in coal thickness.