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作 者:孙乐乐 卫豪杰 李川 Sun Lele;Wei Haojie;Li Chuan(Huaihe Energy Mining(Group),Coal Co.,Ltd.,Huainan,China;College of Mining Engineering,Anhui University of Science and Technology,Huainan,China)
机构地区:[1]淮河能源矿业(集团)有限责任公司煤业公司,安徽淮南 [2]安徽理工大学矿业工程学院,安徽淮南
出 处:《科学技术创新》2023年第21期47-50,共4页Scientific and Technological Innovation
摘 要:本文对张集矿东三C组煤采区进行现场调研,对11-2煤采区回风上山支护方案进行优化,通过减少巷道两帮和顶板的锚杆的用量及降低支护密度,发现支护效果和围岩变形程度无明显变化。成功降低了采区上山的支护和劳动成本,提高了回采巷道支护的可靠性和效益。该支护优化方案对张集矿同类采区支护方案设计有一定的指导意义,具有一定的工程价值。In this paper,a field investigation is carried out in the coal mining area of Group 3 C in the east of Zhangji Mine,and the support scheme of return air up the coal mining area 11-2 is optimized.By reducing the amount of bolt on the two sides of the roadway and the roof and reducing the support density,it is found that the support effect and the deformation degree of surrounding rock have no significant change.The support and labor cost of the mountain in the mining area are successfully reduced,and the reliability and benefit of the support of the mining roadway are improved.The support optimization scheme has certain guiding significance to the support scheme design of similar mining areas in Zhangji Mine,and has certain engineering value.
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