用matlab实现地表岩层移动观测点沉降与工作面回采之间曲线拟合的研究.docVIP

题目：地表岩移测点沉降与工作面回采之间的曲线拟合研究 算法：曲线拟合的最小二乘法方法 组号：X 组员：龚XX、刘XX、李XX、樊XX、朱XX 地表岩移测点沉降与工作面回采之间的曲线拟合研究( 龚XX，刘XX，李XX，樊XX，朱XX （河南理工大学 能源科学与工程学院,河南 焦作 454003） 摘要：为了获得地表岩层移动观测点沉降与工作面回采之间的规律，运用曲线拟合的最小二乘法原理，根据实验数据分析工作面不同推进距离距开切眼的位置与地表下沉量的变化关系，用MATLAB软件进行数据处理，拟合得出地表下沉曲线及相关参数，结果表明：在采空一侧距开切眼位置距离越远，地表下沉量逐渐增大，并在距开切眼330m处趋于稳定；而在远离采空区一侧，从坐标原点到开切眼位置he curve fitting research of the observation points of surface subsidence and mining in Face GONG Yan-hua, LIU Cheng-wei , LI Xin-tao, FAN Ke-song, ZHU Shi-dong， (School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China) Abstract: In order to get the law between the observation points of surface subsidence and mining in face, and use the method of least squares of curve fitting, analyzing the relationship between the location of Starting cut position and amount of subsidence in different face advancing distance ,based on the experimental data. And use MATLAB software for data processing and get the surface subsidence curves and related parameters by fitting draw. the results show that: The farther distance to the Starting cut position in the mined side, gradually increasing the amount of subsidence, and stabilize in the distance of 330m to the Starting cut position; while away from the side of the mined-out area, there are little change in the amount of subsidence from the origin of coordinates to the open position. These characteristics provide the theoretical basis for regular surface subsidence, maximizing the liberation of the coal under the village, improving resource recovery, controlling surface subsidence, protecting the village buildings on surface in maximum. Key words: surface subsidence; Starting cut position; Stopping distance; Curve fitting 1．问题背景 随着大量的煤炭资源从地下采出，所引起的地表沉陷及采动损害问题日益突出。矿山开采沉陷不仅破坏矿区生态环境，而且对地表及其村庄建筑物造成严重损害，影响工农关系和农村的稳定工作，同时为给煤炭企业带来巨大的经济赔偿负担，也影响到矿区乃至社会工农业生产和可持续发展。为最大限度地解放村庄下压煤，提高资源回收率，控制地表沉陷，同时保护地表村庄建筑物，需要开展岩层与地表移动规律的研究。建立地表移动观测站进行地表移动规律和岩移参数的研究是进行村庄下采煤的必备基础已知离散点上的数据集，即已知在点集上的函数