作　　者： (袁勋）; (杨双锁）;

机构地区： 太原理工大学矿业工程学院,山西太原030024

出　　处： 《煤矿安全》 2017年第8期215-218,共4页

摘　　要： 以龙固矿巨厚松散层下深部开采为研究背景,分析了煤矿深部开采地表沉陷机理,建立下部离散介质-中部弹性薄板-上部松散层随机介质的耦合模型,对地表沉陷规律进行研究。通过分析各层位岩层的移动特征,推导出其弯曲下沉方程,分别求出各分层的下沉值,再通过线性叠加,得出厚松散层下深部开采的地表下沉值。分别把运用该方法得出的预计结果和运用整体模型进行地表沉陷预计的结果与实测结果进行比较,发现此模型对厚松散层下深部开采地表沉陷的预计结果更为准确。 Based on the background of deep mining under thick unconsolidated formation of Longgu Mine, we analyzed the mechanism of ground movement and subsidence of mining under deep condition, and studied ground subsidence rule, established coupling model of three-medium： discrete medium on the bottom, elastic thin plate medium in the middle and stochastic medium of unconsolidated layer on the top of the layer. Through analysis of the movement characteristics of each layer, we deduced their subsidence equation respectively. Through linear superposition of subsidence value of each layer, we obtained the surface subsidence value of deep mining under thick unconsolidated formation. Comparing the subsidence value of this method and value of the whole model method with the measured results, we found that this model is more accurate to forecast the ground subsidence of deep mining under thick unconsolidated formation.

关 键 词： 厚松散层 深部开采 地表沉陷 复合介质 耦合力学模型