论文部分内容阅读
为确定平顶山十矿近距离上行开采条件下覆岩垮落带及导水裂隙带高度.运用相似模拟、数值计算、理论分析以及现场钻孔窥视等诸多方法进行综合对比分析.结果表明:综合确定的导水裂隙带发育高度为28.8~32.7 m,与实测值误差为4.14%~8.28%,理论计算应选取大采深无渗流场计算公式;相似模拟—数值计算—大采深无渗流场公式计算的综合方法针对平顶山矿区预计导水裂隙带高度的准确性较好.建议在下一步深部开采中使用该方法估算导水裂隙带高度,研究结果对具有类似条件的矿井导水裂隙带预测具有一定借鉴意义.
In order to determine the height of overlying strata caving zone and water-conducting fracturing zone under the conditions of up-distance mining in the close range of Pingdingshan No.10 Mine, a comprehensive comparative analysis was made with many methods such as analog simulation, numerical calculation, theoretical analysis and on-site drilling and peering etc. The results show that: The height of water-conducting fractured zone is 28.8 ~ 32.7 m, the deviation from the measured value is 4.14% ~ 8.28%. The calculation formula of large depth and no-seepage field should be adopted in theoretical calculation. The formula of similar simulation-numerical calculation- The synthetic method is suitable for the prediction of the height of the water-conducted fractured zone in Pingdingshan Mining Area.It is suggested to use this method to estimate the height of the water-conducted fractured zone in the deep excavation in the next step.The results of the study have some certain predictions for predicting the water- Reference meaning.