Abstract:

In order to supplement the geological characteristics of Pulang Copper Mine and explore the

characteristics of fracture seepage in mining area，the numerical simulation of fracture seepage in Pulang

Copper Mine is carried out based on COMSOL software. By means of artificial window method，3D laser

scanning method and digital panoramic borehole camera method，the fractrue opening degree，fractrue dip

angle and crack distribution characteristics of mining rock mass are investigated. The fracture network model

was generated by Monte-Carlo method and the geometric parameters of fracture were derived. The fracture

model and seepage numerical simulation were carried out by COMSOL software. The simulation results show

that the porosity of the mine area is 2.56% and the permeability coefficient is 6.52×10-8 m/ s，which is of

great significance to the mining and resource evaluation of Pulang Copper Mine，and provides a reference for

the numerical simulation of seepage flow in other similar mines.

Key words:

copper mine, fracture seepage, numerical simulation, COMSOL