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qian mai shen zong cai gong zuo mian hui che qi jian hui che xiang dao wei yi yan hua gui lv yan jiu
Author(s): 
Pages: 37-38,67
Year: Issue:  12
Journal: Coal

Keyword:  工作面回撤回撤巷道数值模拟巷道位移;
Abstract: 以浅埋深综采工作面为研究背景,针对工作面回采至停采线这一过程,对工作面回撤巷道的稳定性进行分析。采用UDEC离散元模拟软件,对工作面回采接近回撤巷道这一过程进行模拟,对巷道的表面位移进行观测,结果表明:主回撤通道顶板下沉量在1100~1300 mm之间,回撤巷道设计的支护方式能起到良好的支护效果,能达到对主、辅回撤通道顶板、煤壁及底板的控制要求。
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