1 shaft minefield belongs to an area with structurally medium complexity,while the direct mine water filling sources are atmospheric precipitation,surface water,coal measures sandstone fissure water,gob water,structure water(through faults and subsided columns),indirect source is Ordovician limestone karstic water.

Thoroughly analyzed Ordovician limestone karstic water water-bearing strata,recharging,runoff and discharging conditions,development and utilization status quo,and probed into vertical changing pattern of Ordovician limestone karstic water as well.

Based on the geophysical prospecting material on the 11105W working surface and the neighbor drill hole in xiezhuang coal field of shandong province,the appraisal and forecast has been carried on the developing degree of karsts in Ordovician limestone and its water-bearing degree under this working surface floor.

The assessment and division of ground water environment quality of Ordovician limestone in Lishi-Liulin mining areas are made in this paper.

In order to guarantee the safety of digging roadway engineering in water-bearing Ordovician limestone below the earth surface 1 000 m in Panxi Coal Mine, on the base of the un-homogeneous characteristics of Ordovician limestone bearing water the method of geophysics exportation combing with drilling ensure the safety while roadway was excavated in water-bearing Ordovician limestone.

Water outburst of O limestone in Xinwen mine area and its prevention measures;