Abstract:

In the government of karst water, the law of fissure development and water-power cross-connection are  key to  engineering management. For identifying  the engineering management, the geophysical prospecting method was adopted into the engineering. The position, scale and  space law of the fissure was obtained through the geophysical prospecting method. The information ofthe water-bearing formation and the character of the containing water  were  obtained by a boring test. On the base of composite geophysical prospecting and boring test, the space law of the fissure and water-power crossconnection inside the karst was concluded, and  the proper position for grouting and drilling were chosen.This research can provide a reference  for slurry diffusion. The law of slurry diffusion was  obtained by hydraulic connectivity experiment and water-power isobar drawing. This research can direct the choosing of the grouting materials and grouting technology. The engineering efficiency can be increased and the cost can be reduced with the help of this method to choose the grouting materials and grouting technology.

Key words: geophysical prospecting method, the law of the fissure development, the water-power isobar, the analysis of the slurry diffusion, grouting management