地表移动负指数函数预计法的参数确定方法研究  

Parameters Determination of Negative Exponential Function Forecast of Surface Movement

作　　者：于宪煜[1] 胡友健[1] 牛瑞卿[2] 

机构地区：[1]中国地质大学(武汉)信息工程学院,湖北武汉430074 [2]中国地质大学(武汉)地球物理与空间信息学院,湖北武汉430074

出　　处：《煤矿开采》2016年第2期10-14,共5页Coal Mining Technology

摘　　要：负指数函数法的预计精度主要取决于其预计参数a,b的精度和可靠性,而采动影响程度(系数)对参数a,b的影响最大。提出利用矿区下沉典型曲线来建立参数a,b与采动影响系数之间的定量关系并将定量关系式用于确定参数a,b。利用实测数据对所提出的参数确定方法的实用效果进行验证,结果表明:参数a,b与采动影响系数之间存在密切的相关关系,其关系可以用线性函数定量地表示。The predicting precision of negative exponential function method is mainly depended on precision and reliability of parame-ters a and b, the largest influencing factor that to parameters a and b is mining influence degree, and quantitative relation of parame-ters a and b and mining influencing coefficient was put forward on the basis of typical subsidence curve of coal mine area, then parame-ters a and b were determined by the quantitative relation expression.The practical effects of the parameters determination method was validated by measured data, the results showed that the relations of parameters a, b and mining influence coefficient could be quantita-tive expressed by linear function.

关 键 词：地表移动预计 负指数函数法 预计参数 采动影响系数 

分 类 号：TD325.2[矿业工程—矿井建设]