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he dong mei tian li liu kuang qu mei xiang zhi hu can shu you xuan
Pages: 30-31
Year: Issue:  12
Journal: Coal

Keyword:  锚喷支护位移速率数值分析塑性屈服;
Abstract: 利用数值分析软件FLAC3D分析锚杆支护、混凝土支护、锚喷支护三种方式对河东煤田离柳矿区煤巷顶板支护的稳定性。比较煤巷支护后顶板最大主应力、位移速率及30 d最大位移估算量得出,最终支护参数为:采用0.8 m ×0.8 m排距锚杆支护,局部破碎煤层采用锚喷支护。
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