摘要
针对望峰岗矿深井立孔测压复杂的客观实际,提出了高压复合注浆分组隔断封孔法。通过利用4#地质探测立孔进行试验,成功地获得了千米深处的突出煤层B11b的瓦斯压力值,从而为矿井下一步制定瓦斯综合治理措施提供了技术支持和依据。
Aiming at complexly measuring gas pressure in vertical borehole in Wangfenggang Colliery, this paper puts forward a method of combined grouting with high pressure and sealing in groups. By testing in 4^# geological detection vertical borehole, gas pressure in outbursting coal seam B116 with buried 1000m depth is obtained successfully, which provide technical support and base for formulating comprehensive gas prevention measure.
出处
《煤矿开采》
2008年第6期87-89,共3页
Coal Mining Technology
关键词
深井
立孔
瓦斯压力
deep mine
vertical borehole
gas pressure
