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Research on Surrounding Rock Control Technology of Dongbaowei Deep Mining Roadway

机译:Dongbaowei Deep Mining Roadway围岩控制技术研究

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In order to explore the stability control of surrounding rock in the process of deep mining, comparative analysis of stress, deformation, and fracture characteristics of surrounding rock of deep and shallow mining roadway in dongbaotou coal mine, laboratory experiments, field measurement, numerical simulation, and field industrial experiments were adopted to put forward the control plan of the surrounding rock in deep roadway, which were verified by field industrial experiments. The results of laboratory experiments and field experiments show that the mechanical properties of deep roadway surrounding rock of Dongbaowei Coal Mine are significantly lower than those of the shadow roadway, mainly due to the development of joints and fractures of the overlying strata in the deep stope, serious impact on the disturbance of the roadway which has been made by the strong pressure of the stope, and reduced crushing strength of surrounding rock. Through comparative analysis of deep roadway support plan carried out by numerical simulation, the support scheme suitable for Dongbaowei Coal Mine is put forward, which is applied in the field. Field industrial experiments show that after the optimization of support parameters, the deformation of surrounding rock of roadway is well controlled. The displacement of surrounding rock of roadway is basically stable after 10~15 days. The support of surrounding rock of roadway has good effect, which achieves the goal of stability control of deep roadway surrounding rock.
机译:为了探讨周围岩石稳定性控制深矿,应力,变形的压力,变形和骨折特性,浅浅煤矿煤矿,实验室实验,现场测量,数值模拟采用现场工业实验提出了深道深岩体的控制计划,由现场工业实验验证。实验室实验和现场实验结果表明,东巴威煤矿周围岩路的机械性能明显低于影子巷道,主要是由于在深处的覆盖层的关节和骨折的发展,严重影响道路的障碍,这是由围攻强大压力所取悦的,降低周围岩石的破碎强度。通过对数值模拟进行的深沟支撑计划的比较分析,提出了适用于东巴威煤矿的支撑方案,适用于该领域。现场工业实验表明,在优化支撑参数后,道路围岩的变形得到了很好的控制。道路周围岩石的位移在10〜15天后基本稳定。巷道周围岩石的支持有良好的效果,实现了围岩深巷稳定控制的目标。

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