CONTROLLING THE WATER INRUSH FROM LOOSE LAYERS IN SHAFT BY GROUTING FROM LAND SURFACE

The outburst of ground water from the loose layers with great thickness in the South ari shaft of Luling Coal Mine was over ten years.with the method of grouting from land surface,the success of water plugging has come true.The layouts of drill holes,the option of grouting parameters and the technology of construction were introduced emphatically.