摘要
为得出固体充填采煤岩层移动特征和分布规律,以花园矿1312工作面为例,运用数值模拟方法,分析了固体充填采煤岩层移动特征及应力分布规律。研究结果表明:固体充填采煤对上覆岩层移动有较好的控制效果;上覆岩层移动缓慢,活动周期较长;煤壁两侧支承压力的大小和范围小于垮落法开采;煤层顶板无明显的初次来压和周期来压。
Taking 1312 Mining Faee of Huayuan Colliery as an example and applying numerical simulation method, rock-strata movement characteristic and stress distribution rule of coal mining with solid stowing were analyzed. Results showed that solid stowing mining could well control surrounding rock movement and rock-strata moved slowly. Abutment pressure at coalwall was smaller than that of caving mining method. Roof initial and periodical weighting was not obvious.
出处
《煤矿开采》
北大核心
2013年第2期71-74,共4页
Coal Mining Technology
基金
国家自然科学基金重点项目资助(50834004)
国家自然科学基金青年基金项目(41104011)
国家科技支撑计划课题(2012BAB13B03)
中央高校基本科研业务费专项资金资助(2012LWB32)
江苏高校优势学科建设工程资助项目
关键词
固体充填采煤
岩层移动
应力分布
活动规律
coal mining with solid stowing
rock-strata movement
stress distribution
movement rule
