摘要
分析了钻孔涌水量常规经验公式的弊端,基于伯努利方程推导出了新的井下探放水钻孔涌水量计算公式。该钻孔涌水量计算公式所得钻孔涌水量与钻孔直径、水头高度、孔深等因素有关,与施工钻孔的方位角度无关。实例证明,通过该计算公式计算所得钻孔涌水量与实际误差较小,精确度较高,具有较好的应用效果。
The paper analyzed the drawbacks of conventional experience formula of drilling water discharge and deduced a new calculating formula of underground water detection and water release drilling water discharge based on Bernoulli equation.The drilling water discharge results are related to hole diameter,water heat height and drilling depth,and have nothing to do with drilling azimuth angle independent.Application examples show that the drilling water discharge and the actual error is small,and has better application effect.
出处
《江西煤炭科技》
2017年第1期7-9,共3页
Jiangxi Coal Science & Technology
关键词
探放水钻孔
涌水量
伯努利方程
应用实例
water detection and water release drilling
water discharge
Bernoulli equation
application examples
