摘要
影响垮落带高度有多种因素,"三下"规程中计算垮落带高度公式只考虑了采厚的影响,存在局限性,而且精度不高。在收集大量实测数据的基础上,应用多元统计分析方法得出垮落带高度与采厚、硬岩岩性比例系数和采深的函数关系。应用敏感度评价模型和检测模型确定各影响因素的敏感度。进而建立DM-M预计模型,通过实例验证该模型提高了垮落带高度的预计精度。
There are many factors influencing the height of caving zone, regulation of mining under bridge, village and water body only takes the influence of mining thickness into account, with limitations and inaccurate problems. Based on great number of measured data, height of caving zone, the mining thickness, hard rock lithology ratio coefficient and mining depth were got by multivariate statistics analysis method. The sensitivity of the influenced factors can be concluded according to the sensitivity evaluation model and its test model. Finally, the DM-M prediction model was established, and the practice showed that the model improved the prediction accuracy of the height of caving zone.
出处
《煤炭与化工》
CAS
2015年第9期1-3,共3页
Coal and Chemical Industry
关键词
垮落带高度
多元统计分析
敏感度分析
DM-M模型
硬岩岩性比例系数
height of caving
multivariate statistics analysis
sensitivity analysis
the DM-L prediction model
hard rocklithology ratio coefficient
