玉溪煤矿1302工作面初采初放矿压显现强度预测及控制研究  

Research on Prediction and Control of Initial Drawing Pressure Intensity in 1302 Face of Yuxi Coal Mine

作　　者：祁阿成 Qi Acheng(Shanxi Lanhua Science and Technology Innovation Yuxi Coal Mine Co.,Ltd.,Jincheng Shanxi 048214,China)

机构地区：[1]山西兰花科创玉溪煤矿有限责任公司,山西晋城048214

出　　处：《山西冶金》2024年第7期166-168,共3页Shanxi Metallurgy

摘　　要：为有效控制玉溪煤矿1302综放工作面初次初放阶段工作面来压,通过理论分析、经验公式计算、工程类比、工业试验等手段,进行顶板矿压显现强度预测及合理控制技术研究。结果表明,基本顶初次来压步距25.8 m,需进行切顶卸压控制,优选水力压裂工艺进行预切顶处理,压裂期间水压变化曲线及周边钻孔出水情况表明压裂效果良好,可明显减弱初次来压强度。In order to effectively control the pressure of 1302 fully mechanized caving face at the first stage of the first caving in Yuxi Coal Mine,through theoretical analysis,empirical formula calculation,engineering analogy,industrial test and other means,the prediction of the mining pressure development strength of the roof and reasonable control technology were carried out.The results show that the initial pressing step of the basic top of the working face is about 25.8 m,and the top cutting pressure relief control is needed.The optimum hydraulic fracturing technology is used to pre-cut the top.The water pressure change curve and the water discharge of the surrounding borehole during fracturing show that the fracturing effect is good and the initial compressive strength can be significantly weakened.

关 键 词：初次来压 综放工作面 水力压裂 

分 类 号：TD323[矿业工程—矿井建设]