Abstract: The deformation of the end of the drainage of Heibei Group six mine 2145 is obvious,and the deformation is becoming bigger and bigger. Therefore,to deal with this situation,some relative research work is conducted,that is the numerical simulation research on supporting effect of row spacing between short anchor cable of whole section based on FLAC3D software.Combining the numerical simulation results with the actual construction condition and economic benefit analysis, the row spacing of anchor cable is determined to be 1.4 meters so as to meet the production needs. The research results indicated that, the force of the anchor cable is stable,the deformation of surrounding rock is controlled effectively, at the same time the stability of the roadway is ensured.

Key words: The short anchor cable supporting of whole section, Numerical simulation analysis, The effects of supporting, inter-row spacing