摘要
综合机械化固体(废弃物)充填采煤技术能用于低成本、安全、高效回收"三下"压煤和煤柱资源,具有提高煤炭资源回收率,循环利用矿区固体废弃物,保护矿区土地、水资源和环境等优点.在简述固体充填采煤方法及其岩层控制效果的基础上,重点比较了该方法与一般长壁综采在采场矿压控制原理和支架设计理念等方面的显著差异;进一步完善了用于分析岩层移动和地表沉陷等规律的固体充填采煤的等价采高矿压模型;基于提出的固体充填采煤液压支架设计理念,给出了用于分析支架主动加载对顶板变形移动控制的采场矿山压力力学模型,根据半无限平面上作用集中力的经典弹性力学Flamant解,推导得到了计算支架主动力作用引起的采场顶板变形位移曲线的解析解,对完善固体充填采煤基础理论起到了一定的推进作用.
The coal mining technology of fully-mechanized solid filling（or waste filling）can be used to recover the resource of three underground coal and the coal pillar,which can enhance the coefficient of coal recovery,circularly utilize the solid waste in mining area and protect the land resource,water resource and the environment.On the basis of briefly describing the coal mining method of fully-mechanized solid filling and its effects on the strata controlling,the remarkable differences in the principles of underground pressure control and mining supporter design between this method and ordinary longwall mechanized mining method are compared.The underground pressure model with equivalent mining height of solid filling which is used to analyze the law of strata moving and surface subsidence is improved.Based on the proposed supporter design of mechanized mining with solid filling,the mechanic model of underground pressure that is used to analyze the roof deformation induced by the initiative loading of supporter is established.According to the Flamant＇s solution of a concentrated force act on infinite half plane,the analytical solution that can calculate the displacement curve of roof deformation induced by the active force provided by the supporter is obtained.This research work has important impelling action on improving the basic theory of coal mining with solid filling.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2010年第6期795-801,共7页
Journal of China University of Mining & Technology
基金
国家重点基础研究发展计划(973)项目(2007CB209400)
江苏省创新学者攀登项目(BK2008007)
国家自然科学基金重点项目(50834004)
关键词
综合机械化固体充填
固体充填采煤
六柱支撑式液压支架
矿压模型
fully-mechanized solid filling
solid filling mining
six columns hydraulic support
underground pressure model
