摘要
本论文基于铁矿极硬岩石条件,对反井钻机钻具在扩孔工况下的受力进行简化,研究钻具在扩孔工况下的受力,充分考虑钻头振动荷载、钻具与岩层相互作用、偶然荷载等因素对钻具受力造成的影响,得出扩孔状态下钻杆受到的拉力、扭矩公式。通过分析岩石条件,获取岩石抗压强度,将钻杆所受扩孔拉力、扭矩的计算公式应用在反井工程中取得良好的结果,工程实践表明,研究成果对计算处于极硬岩石下扩孔工况钻杆的扩孔拉力、扭矩具有借鉴意义。
Simplified the force state of drilling tool in raise boring machine under reaming process which is based on extremely hard rock in iron mine.Study on force in drilling tool under reaming process must take into account many factors sand obtained the pulling force and torque force formula of drilling tool.The factors not only include vibration load of ream bit and occasional load,but also interaction between drilling tool and rock stratum.It is proved to achieve good results that the application of the pulling force and torque force formula which based on the analysis of rock compressive strength.The engineering practice application shows that research results are worth learning and promoting when study on pulling and torque force in drilling tool under reaming process.
作者
马奕博
高岗荣
程守业
于见水
MA Yibo;GAO Gangrong;CHENG Shouye;YU Jianshui(Research Institute of Mine Construction,China Coal Research Institute,Beijing 100013,China;Beijing China Coal Mine Engineering Company Limited,Beijing 100013,China;National Engineering Laboratory For Deep Shaft Construction Technology in Coal Mine,Beijing 100013,China)
出处
《中国矿业》
北大核心
2019年第2期158-161,168,共5页
China Mining Magazine
基金
中国煤炭科工集团有限公司科技创新创业资金专项资助青年基金项目"反井钻杆无损检测理论及方法研究"资助(编号:2018QN024)
国家重点研发计划项目"金属矿深井高效掘进与成井关键技术及装备"资助(编号:2016YFC0600802)
关键词
反井钻机
铁矿
极硬岩
钻杆
受力分析
raise boring machine
iron mine
extremely hard rock
drill rod
force analysis
