【摘要】 采用相似材料模拟方法,研究了长壁工作面膏体充填采场覆岩结构演化和覆岩移动规律,研究结果表明:充填采场覆岩结构演化和覆岩移动有别于常规采场,充填采场覆岩结构主要是以拱的形式进行演化,而不是铰接岩梁的形式;覆岩移动则主要是以离层的形式由下向上逐渐发展,并且上位岩层的离层是在下位岩层离层闭合的基础上产生的。更多还原

【Abstract】 Applying analog simulation method,this paper researched overlying strata’s structure evolvement and movement rules of long-wall mining field with paste-stowing.Results showed that overlying strata’s structure evolvement and movement of mining field with stowing were different from common mining field.Overlying strata structure evolved with arch shape,not with hinged rock beam.Overlying strata movement gradually developed in separation mode from down up and separation of upper strata was from the closure of lower strata separation.更多还原