华中师范大学学报（自然科学版）2018，Vol.52Issue(2)：201-206,6.DOI:10.19603/j.cnki.1000-1190.2018.02.008
拐点偏距影响因素的多元线性分析
Multiple linear analysis of effect factors of inflection point offset
摘要
Abstract
Based on measured data and using multiple linear analysis,the influence of geology and mining condition on inflection point is studied in depth and the model of regression calculation for inflection point is established,The analysis shows that the main impact factors of inflection point offset including compressive strength of overlying strata,mining extent,dip angle of coal seam,mining depth and the thickness of epipedon,etc.Meanwhile,it is found that the error of the model is relatively large when the thickness of hard formation of overlying strata is more than 10 m.By using multivariable linear regression,the model of calculating inflection point offset is re-established when there is no hard formation more than 10 m thick.The model is demonstrated to have good degree of fitting,stability and accuracy which is able to meet the demand of ground movement and deformation prediction.关键词
拐点偏距/煤层倾角/松散层厚度/采动程度/采深/覆岩抗压强度Key words
inflection point offset/dip angle of coal seam/thickness of unconsolidated formation/mining extent/mining depth/compressive strength of overlying strata分类
矿业与冶金引用本文复制引用
秦洪岩,题正义,李洋..拐点偏距影响因素的多元线性分析[J].华中师范大学学报（自然科学版）,2018,52(2):201-206,6.基金项目
国家自然科学基金项目(51174109) （51174109）
中央高校基本科研业务费项目(3142017095). （3142017095）
