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由山东科技大学和中国矿业大学设计的内锚外注式锚杆 ,利用锚杆兼作注浆管对围岩进行注浆 ,一方面可加固巷道周边的破裂岩体 ,提高围岩的自承能力 ;另一方面可改善破裂岩体的结构及其力学性能 ,最大限度的发挥锚杆的锚固作用。衮州矿业 (集团 )公司鲍店煤矿的工程实践证明 ,这
The inner anchor bolt and anchor bolt designed by Shandong University of Science and Technology and China University of Mining and Technology use grouting of bolt and grouting pipe to enclose the surrounding rock. On the one hand, it can reinforce the cracked rock mass around the roadway and improve the self-bearing capacity of the surrounding rock. On the other hand, it can improve the structure and mechanical properties of the rock mass, and maximize the anchoring effect of the rock bolt. Danzhou Mining (Group) Company Baodian coal mine engineering practice proved that this