Jizhong Energy Group Corporation Limited

基于河北南部下组煤较大规模开采和大采深矿井防治水技术现状,提出了"超前主动、区域治理、全面改造、带压开采"的安全开采技术指导原则;结合当前我国定向钻进技术日益成熟以及现场定向钻进试验已取得的进展,初步探讨了以往下组煤带压开采矿井防治水指导原则的不足,提出下组煤及大采深矿井带压开采指导原则和技术对策。

Based on the present status of the large scale mining in the low group seam in the south part of Hebei Province and the mine water prevention and contr ol technology in deep mine, a safety mining technical guidance principle of“advance active, regional control, full reconstruction and pressure dropping with pressurized water was provided.In combination with the daily matured directional drilling technology and the progress of the site directional drilling experiment, the paper preliminari ly discussed the shortages of the previous mine water prevention and control guidance principles for the pressurized mining in the lower group seam and provided the g uidance principles and technical countermeasures of the pressurized mining in the lower group seam and the deep depth mine.