河南省平顶山煤田郏县煤预查区某钻孔,在179.09～269.64m出现了18次涌水,最大涌水量为200t/h。从控量分段孔底注浆的原理出发,详细介绍了该方法在注浆方案的设计、注浆材料的选择、注浆量的计算、注浆压力的控制和注浆效果检验方面的实际应用。透孔检查显示,该孔的注浆堵漏止涌的成功率为100%,达到了预期目的。 A hole was drilled in the Lixian coal prospecting area in Pingdingshan Coalfield, Henan Province, where 18 gush water appeared at 179.09 ~ 269.64m and the maximum water inflow was 200t / h. Based on the principle of segmented bottom hole grouting, the method of grouting design, grouting material selection, grouting amount calculation, grouting pressure control and grouting effect test are introduced in detail. application. Through-hole inspection showed that the hole grouting plugging success rate was 100%, to achieve the desired purpose.