论文部分内容阅读
揭示测量误差对概率积分法参数精度的影响程度问题.采用正交设计的方法对参数因子进行敏感性分析,得到下沉系数和拐点偏移距属敏感因子,主要影响角正切和开采影响传播角为不敏感因子;采用仿真计算的方法分析了测量误差对参数精度的影响.研究结果表明:以测量中误差与最大下沉值的比值作为衡量标准得到,当比值小于7%时求出的参数是可靠的,当比值大于10%时求出的参数是不可靠的.该研究结论放宽了沉陷监测对数据的精度要求,为矿山开采沉陷观测站的观测工作及仪器的选择提供依据.
Revealing the degree of influence of measurement error on the accuracy of the parameter of probability integration method.The sensitivity of parameter factors is analyzed by orthogonal design method, and the sensitivity factors of subsidence coefficient and inflection point offset are obtained, which mainly affect the angle of tangent and the influence of propagation angle As the insensitive factor.The influence of measurement error on the parameter accuracy was analyzed by the method of simulation.The results show that the ratio between the error of measurement and the maximum subsidence value is taken as the standard and the parameter obtained when the ratio is less than 7% Is reliable.When the ratio is more than 10%, the parameters obtained are not reliable.The conclusion of the study relaxes the data accuracy requirements of subsidence monitoring and provides the basis for the observation work and equipment selection of the subsidence observation station.