| 锚杆杆尾螺纹力学性能的实验研究 |
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| 引用本文： | 程蓬,康红普,鞠文君.锚杆杆尾螺纹力学性能的实验研究[J].煤炭学报,2013,38(11):1929-1933. |
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| 作者姓名： | 程蓬 康红普 鞠文君 |
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| 作者单位： | 1.天地科技股份有限公司 开采设计事业部，北京 100013；;
2.煤炭科学研究总院 开采设计研究分院，北京 100013；;
3.煤炭科学研究总院 煤炭资源高效开采与洁净利用国家重点实验室，北京 100013 |
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| 基金项目： | 国家自然科学基金委员会与神华集团有限责任公司联合资助项目（U1261211）；国家科技支撑计划课题资助项目（2012BAK04B08）；开采设计事业部科技创新基金(青年创新基金)资助项目(KC-QNCX-2012-05) |
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| 摘 要： | 为提高锚杆杆尾螺纹段综合力学性能，在分析锚杆杆尾螺纹力学性能主要影响因素的基础上，对不同螺纹参数的锚杆螺纹段力学性能进行了试验研究，开发出螺纹力学性能测试试验台，加工不同公称直径、不同牙型、不同螺距等参数的螺纹段试件，进行多方案对比试验，得出不同螺纹结构参数与锚杆螺纹段力学性能的关系。试验结果表明：螺纹参数对锚杆螺纹段力学性能影响非常显著；通过减小螺纹的螺距，能够有效提高螺纹预紧力矩转化效率，并提高杆尾螺纹段的拉伸强度性能。
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| 关 键 词： | 锚杆 螺纹 力学性能 螺纹参数 预紧力 |
| 收稿时间： | 2012-11-20 |
Experimental study on mechanical properties of thread end of rock bolts |
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| Abstract: | In order to improve multiple mechanical properties of thread end of rock bolts，based on analysing the main factors affecting the mechanical properties of thread end of rock bolts，the influence of the different thread parameters upon the mechanical properties of thread end of rock bolts was investigated through laboratory tests，parameters of different nominal diameter，different teeth and different pitch threads and corresponding nut specimens were processed，a multi-program comparison tests were carried out on a laboratory table which was specially designed，and got the impact of different parameters to the mechanical properties of thread end of rock bolts.The results indicate that the mechanical properties of bolt tail thread is significantly affected by different thread parameters，by reducing the pitch of the threads，pretension torque conversion efficiency is effectively improved and the strength properties of the bolt tail thread is responding increased，which is an effective way to improve the mechanical properties of thread end of rock bolts. |
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| Keywords: | bolt thread mechanical property thread parameter bolt pretension |
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