为研究浅埋厚煤层综放开采条件下的地表移动规律，在万利矿区某综放工作面上方建立了地表移动观测站进行观测，通过分析地表移动变形实测数据，得出了该区条件下综放开采的地表移动规律。结果表明：工作面采深小、开采范围大，地表移动和变形值较大，其地表移动盆地的分布特征基本符合概率积分法模型，其综合下沉系数为0．78，主要影响角正切为2．8，拐点偏移距系数为0．14。%In order to study the suriace ground displacement law under the conditions ot the tully mechanized top coal caving mmmg in shallow thick seam, a surface ground displacement observation station was established above a fully mechanized top coal caving mining face in Wanli Mining Area and several observations were conducted. With the measured data analysis on the surface ground displacement and deformation, the surface ground displacement law of the fully mechanized top coal caving mining under the conditions of the mining ar- ea was obtained. The results showed that the mining depth of the coal mining face was shallow, the mining scope of the coal mining face was large and the values of surface ground displacement and deformation were high. The distribution of the surface ground movement basin could basically meet the model of the probability integration, the comprehensive subsidence coefficient was 0. 78, the tangent of the major influence angle was 2. 8 and the deviation distance coefficient of the inflection ooint was 0. 14.
展开▼
