Influenced by mining,the coal-mining face floor above the confined water aquifer will be ruptured,the thickness of the intact rock stratum will reduce,the capability of water-resisting will be weakened and the possibility of floor water inrush will increase.

From the stress behaviour of the roadway and its maintenance situation, it is proved that the improvement of rock mass integrity and strength is the main factor affecting roadway maintenance situation.

By comparing and analyzing the borehole data with the digging hole examination result, this paper suggests the classification standard of the rock mass integrity of Liuzhou Hrilomite.

Based on the study of the relationship between geological structure and the tectonic face, the new method for definittion of crack effect on rockmass integrality of rock aroud gateway is abtained.

Based on the change of the developing degree of joint,the rockmass integrality and rockmass structure,this paper studies how to classify the rockmass weathering quantitatively by joint spacing,rock quality designation and rockmass integrality coefficent and intrinsic qualitative factors.