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通过实验研究， 得出了煤体对纯水吸收速度的第一影响因素是煤体的平均毛细管力； 第二影响因素是煤体过渡孔与半大孔的孔隙体积之和． 而煤与纯水间的平衡接触角不直接控制煤体的吸水性． 具体实施煤层注水时可根据煤体孔隙特性选择合适的注水速度， 以取得更好的降尘效果．
Through experimental study, it is concluded that the first factor affecting the absorption rate of pure water is the average capillary force of coal; the second is the sum of the pore volume of transitional and semi-large pores of coal. The balance of coal and pure water contact angle does not directly control the water absorption of coal. When the coal seam water injection is carried out, the proper water injection speed can be selected according to the pore characteristics of the coal to obtain a better dust reduction effect.