综放开采覆岩运移及导水裂隙带高度研究

发布时间：2018-07-02 19:54

本文选题：综放开采 + 导水裂隙带高度　；参考：《中国科技论文》2017年21期

【摘要】：为了研究综放开采覆岩运移及导水裂隙带高度,基于沙坪矿某综放工作面具体采矿地质条件,采用FLAC3D数值模拟软件对该综放工作面覆岩运移分布特征进行了分析,得到了综放开采覆岩垂直位移和垂直应力分布情况,并构建了综放导水裂隙带高度多元回归预测模型,得到了综放开采导水裂隙带高度与5个主要因素的多元回归公式,并与只考虑开采厚度单因素的回归公式进行对比分析。结果表明:相对于只考虑开采厚度单因素,当考虑5个主要因素时,导水裂隙带高度预测公式更加精确实用。结合工程实例,验证了该多元回归公式的合理性及适用性。
[Abstract]:In order to study the movement of overlying rock and the height of water fissure zone in fully mechanized caving mining, based on the specific mining geological conditions of a fully mechanized caving face in a Sha Ping mine, the characteristics of the overburden distribution in the fully mechanized caving face are analyzed by the FLAC3D numerical simulation software, and the vertical and vertical stress distribution of the overlying strata in fully mechanized caving mining are obtained, and the fully mechanized caving guide is constructed. The multiple regression model of water fissure zone height multiple regression is used to obtain the multiple regression formula of the height of the water conducting fissure zone and 5 main factors in fully mechanized caving mining, and compared with the regression formula only considering the single factor of mining thickness. The results show that the height of the water conducting fissure zone is relative to the only consideration of the single factor of mining thickness and when the 5 main factors are considered. The prediction formula is more accurate and practical. Combined with engineering practice, the rationality and applicability of the multiple regression formula are verified.
【作者单位】：河南理工大学能源科学与工程学院;煤炭安全生产河南省协同创新中心;
【基金】：国家自然科学基金资助项目(51774111) 高等学校博士学科点专项科研资金资助项目(20134116110004)
【分类号】：TD325;TD745

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