Method for deep chemical injection within the area of a rock mass, before the longwall face line in the hard coal seam

摘要

way deep in earth chemical injection area before the lines u015bcianowego in board of coal, characterized by that,in course of the walls (2) drilling holes in board (1) of such an injection.to their point of contact with rocks stropowymi and spu0105gowymi was depth equal to double thickness of deckand in the sections of wall distance between hole (1) is dependent on the mechanical strength of the rocks in the disturbance (5),however, in the przedfrontowej deck it is beneficial iniekcyjnego drilling aperture perpendicular to the line eksloatacyjnego wall length of at least 1 m two grubou015bcand the reduced the carbon, and the przychodnikowe walls are iniekowane holes iniekcyjnymi chemoutwardzalnym chemical,which stirs about directions inclined toward the surrounding rocks i.e.. the roof and spu0105gu maintaining squareness in relation to the longitudinal axis (3) pavements.