兖州矿区综放开采地表移动盆地特征分析

Analysis on the characteristic of Surfacc-moving Basin Resultedfrom combined Coal Mlng with Roof caving at Yanzhou Mine Area

通过对兖州矿区综放开采地表移动观测资料的综合分析,研究了综放开采地表移动特征的特殊性及其机理,给出了边界角、 移动角和最大下沉角的经验计算公式和适用的角值参数。

Through comprehensive analysis on some information obtainedfrom observation of ground surface movement caused by combinedcoal Ming at Yanzhou Mine Area. the research works are carried out on the characteristic and mechanism of Surface-Moving caused bycombined coal Ming and from this, experiential formulas have been derived for calculation of displacement angle and maximumsubsidence angle and suitable angle parameters have been obtaincd